Fcu Cooling Capacity Calculation

FCU Cooling. Multiply the air conditioner's size in tons by 12,000 to convert its cooling capacity to British Thermal Units per hour. LIQUID SUBCOOLING 50% 4# 62. Ceiling Cassette Type. It is the first pumped refrigerant economization system for data centers, providing free cooling throughout much of the year in many locations. Measure the time it takes for the compressor to stop (cooling cycle) Calculate the loss of heat during the warming cycle with. If your system has a chilled water loop then we will calculate the total pumping capacity required. The size of the system is listed in BTUs (British thermal units). This means that, where applicable, the information pertaining to the building (as is the case in the Project and Climate report) or a system, zone or room (as it the case for the loads reports) are contained on a single page. 9˚C water temperature rise; entering air temperature 24. Download Specific Heat Capacity Unit Converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. How can we calculate CFM Answer / wasif arshad. Water Flow in GPM=3. h s = sensible heat (kW) c p = specific heat of air (1. Fan Coil Unit Product Line FCU FCHC Horizontal Concealed Units COOLING CAPACITY (BTU) HIGH 7,000 9,400 12,500 19,000 23,200 27,800 33,300. Icing can happen because of a drop in refrigerant due to leaking, grime along the coil, or a clogged air filter. The load model assumes a sensible cooling load directly proportional to outdoor temperature and a latent load directly proportional to the product of outdoor humidity (mass ratio of water vapor to dry air) and outside air flow rate. Hydronic Chilled/Hot Water Universal Mount Fan Coil Unit, 4 Pipe System, 208/230V-1Ph-50/60Hz, Capacity 1 to 5 Ton from $ 1,855. Of Entering Air -ENTH of Leaving Air. Heating Cap. Using cooling blankets if required by the patient. The term one ton comes from the amount of heat required to melt a block of ice that weighs one ton. The higher the tonnage, the bigger the air conditioner and the more cooling power it has. 414lb/ft3) x 1. Ceiling Mount Fan Coil. 078kW/ton 90%. Once you've completed the process, glycol chiller options will be presented and you will have the opportunity to get an immediate glycol chiller price. This powerful solution provides uniform air distribution for any small to mid-size applications. (Yes, even Passive House projects. Introduction. Due to high performance of the heat insulation used, the cooling load calculated were very low. Sizing is based on cooling load only. This will give you the tons of cooling required at 50° Fleaving water temperature. Cooling capacity (BTU/H) = Internal Heat Load ± Heat Load Transfer Fan Selection Example A NEMA 12 Hubbell Wiegmann N12302412 enclosure (30" high x 24" wide x 12" deep) contains a GS3-2020 AC drive (20 HP 230 volt) that has a maximum allowable. 015601 lbw/lba. 33 x ?T°F; Calculate tons of cooling capacity Tons = BTU/hr. In a typical modern diesel engine of the heat that is generated by the combustion process, approximately 30% is used for power, 30% is expelled through the exhaust, 10% is naturally radiated leaving 30% which is transferred into the engine cooling system and needs to be dissipated. Data in table is the capacity at high speed. As a web based software, it provides easy, quick and reliable cooling load calculation. 6kW of heating capacity is required to heat a room, a heat pump that is rated at 5. Consideration of By-Pass Wall Water 10. Whether your enclosure cooling or heating needs will require an air conditioner, air to air heat exchanger, filtered fan. Plagued by a chronic case of curiosity. Cased Horizontal "A" Oil-Gas and Oil Furnace Applications (RCFH) R-410A; Airflow capacity 600-1. Ductless Split Systems, Ducted Central Systems, Single zone, Multi Zone, for cooling and heating applications. The function GetCoilDesFlowT in module ReportSizingManager calculates the air flow rate and exit air temperature for each capacity control method. Variations in temperature (e. Calculation of cooling capacity through the volume of matter and time. It should not be considered as a replacement for expert advice or a precise and detailed heat load calculation. It takes 1 Btu of heat to raise the temperature of 1 pound of water 1ºF, but it takes 1,060 Btu’s of heat to change the same amount of water to a vapor. Available in several languages. The cooling load you calculate may differ from this though, especially if you operate a larger data center. Heating Motors. A heat pump transfers energy by moving a refrigerant, which alternately absorbs and releases heat. 2kW for Associated Equipment = 1. It is advised to reconfirm with your air conditioner contractors again before you place your order. 2 ton/horsepower (cooling) Spot Welders = 1/4 ton per tip (for chilled water) Plating Baths = Heat removal (BTU / hr) = DC amps x DC volts x 2. Cooling Capacity: 2. How to Apply Manual S: Cooling Example Load calculations produce cooling capacity requirements for selecting the HVAC equipment. The heat capacity of the water component of the soil (q mcpw) depends on the water content and the heat capacity for water. 34*10 J/kg L. D T is the temperature rise or Delta (Deg C) q is the heat load or dissipated power (W or J/sec) m dot is the mass flow rate (gm/sec). For this cooling example, we will select an air conditioner for a home with the following Manual J cooling loads: Sensible Cooling 22,000 Btu/h Latent Cooling 8,000 Btu/h Total Cooling 30,000 Btu/h. Obviously, you don't want the system to leak. Note the change in capacity, power input and EER as each pound of refrigerant was added above 50% undercharge. Learning how to read the charts and to do the calculations involved will pay rich dividendsin all phases of refrigeration work. Often, the cooling capacity required is about 1. Using a square footage calculation for this example yields a cooling requirement for all three sections of 2,844,000 Btu/hour, or 118. For example, if a 60 T (42 m³) pan is considered, then the capacity of crystallizer can be. Use this handy calculator to approximate cooling tower water use and cycles of concendtration. As cooling technology advanced, we began to shift from stored ice to mechanical chilling. The cooling load in tons is be found for selecting cooling and air handling units. 95 Midland Road. When operating below 50 ° F you must decrease the rated chiller cooling capacity by 2% for every one. Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop Total Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop Total Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop cfm MBh MBh Usgpm ftwg MBh MBh USGpm ftwg MBh MBh USGpm ftwg l/s kW kW l/s kPa kW kW l/s kPa kW kW l/s kPa 600 12. C - Massecuite - ( 20 to 24 hours cooling purpose + 4 hours curing purpose) - Air cooled + water cooled Each crystallizer capacity should be 10 to 15% more than the existing pan capacity. capacity from 236 to 551 Fins Per Meter (FPM). Tons of Cooling - Air conditioner capacity is rated at 95°F outside with an inside temperature of 80°F and 50% relative humidity. :12℃ Water outlet tem. Ton of refrigeration refers to the amount of heat needed to melt 1 ton of ice in a day (24 hours). Cooling Towers CTP Eng. The airflow required to dissipate the heat generated can either be obtained by calculation or from a graph. 3 kW to 28 kW. A mix of fan coil types can be made once the loads have been calculated, but by entering the most commonly anticipated fan coil type beforehand you can save a considerable amount of time, especially on larger projects. 414lb/ft3) x 1. To calculate the total heat removed from the air stream in a cooling coil, we must account for the sensible and latent heat. In central HVAC systems, cooling systems based on indirect evaporative cooling are becoming increasingly important. So the bigger the room, the more cooling capacity your air conditioner needs to have; hence, more tonnage. 75 to get turbulent flow. HVAC tab in model data - Compact HVAC. Dairy farm milk cooling energy use and cost calculator. In this article, we are going to be looking at FCU's. The inverse also holds true, you will gain 20% capacity per each 10 oF above 50 F. A "ton" refers to the heat capacity of a ton of melting ice over one day. load calculation Total Cooling Capacity (≤ 115%) 28,400Btu/h: These capacities are from manufacturer's performance data at the DESIGN CONDI-TIONS: 85°F ODT, 1,000CFM, and 63°F EWB Sensible Heat Gain 23,321Btu/h Sensible Cooling Capacity. Ethylene glycol, used as a coolant in automotive engines, has a specific heat capacity of 2. Immersion Coil Surface Area Calculator For Cooling with Water This tank cooling calculator can help you determine the required surface area of an immersion coil using water as the cooling source. Processing. A cooling tower ton is defined as: 1 cooling tower ton = 1 TONS evap = 1 TONS cond x 1. Calculate tons of cooling capacity Tons = BTU/hr. Klimaire KDIM018H2U Overview. Server Room Cooling Requirements Calculator Determining cooling requirements is an important aspect of server room planning and design but can be a difficult number to approximate. CRAC Capacity = Number of IT cabinets x kW/cabinet (1) Example 1 for N Capacity: If a 90-kW CRAC cools 90 cabinets, the average cooling delivered per cabinet is 1 kW. A load calculation, also referred to as a sizing for an AC or heat pump, will give you a number to focus on that represents your cooling capacity needs. However, the unit’s capacity has been decreased because of the high elevation, the thinner air carries less heat, and the resulting temperature rise can be evaluated for design purposes. Frequently designers and contractors "guestimate" the size of HVAC units by figuring 1 Ton (12,000 Btuh) of air conditioning will cover 400 square feet (Sq-Ft) of building area. Use this form to estimate the brake horsepower and total power (hp) requirements of the electric motor used to power an irrigation water pump. The 2020 Virtual Conference technical program includes 8 tracks (around 300 speakers) and offers an in-depth learning experience providing solutions, technology demonstrations, and industry insights. The Rule of Mixtures Calculator uses the above equation to approximate the specific heat capacity of a mixture. Second Step - We need to calculate the chilled water flow rate. Air Conditioning Cooling Capacity Calculations BTU Materials datasheet for installation of air conditioner system Cooling capacity for a room is defined as the heat load in a room that has to be removed in order to achieve a certain room temperature and humidity. First, express the mix ratio as a percentage, like this: Mix Ratio Percentage. A water cooling calculator is provided below to perform these quick calculations. Introduces Model SRC(240V) fan coil unit. Calculations for the size of the HVAC system in Macalister hall will be completed through two methods. The four-pipe fan coil unit system is cost-effective from a chilled water and heating water pumping perspective. Spray Nozzle Flow Rate Calculator This calculator is meant to assist you with estimating the flow rate of a spray nozzle at pressures that aren't listed in a catalog or if you do not have a catalog readily available. Comair Rotron makes this type of testing available. Ethylene glycol, used as a coolant in automotive engines, has a specific heat capacity of 2. Heating and cooling load calculations are carried out to estimate the required capacity of heating and cooling systems, which can maintain the required conditions in the conditioned space. Here’s how we calculate what size you need. Using the energy equation of Q = ṁ x Cp x ΔT we can calculate the cooling capacity. We’re here to help you embrace whatever life brings your way, with the financial products you need, the ease of access and mobile technology you want, and the personal service you deserve. load calculation Total Cooling Capacity (≤ 115%) 28,400Btu/h: These capacities are from manufacturer's performance data at the DESIGN CONDI-TIONS: 85°F ODT, 1,000CFM, and 63°F EWB Sensible Heat Gain 23,321Btu/h Sensible Cooling Capacity. CHILLED WATER COOLING COILS Specification 6 Tube and fin configurations 6 Typical casing styles 7 DX COOLING COILS Specification 8 Tube and fin configurations 8 Typical casing styles 9 COILS HEATING & COOLING COIL PRODUCTS LTD Unit 21 Wingate Road, Fort Brockhurst Ind Estate, Gosport, Hampshire, PO12 4DR Tel: 02392 501431. Selection of machines which are efficient in cost and good in performance like FCU'S, AHU'S, Chillers, Plate Heat Exchangers, Pumps and Fans etc. Starting at $99, Fast Turnaround, All 50 states. Contents • Principle of cooling load • Why cooling load & heat gains are different • Design conditions • Understand CLTD/CLF method • An example 3. 08 x (EAT – LAT) CFM = Cubic Feet per Minute. 25 = 15000 Btu /h = 3782 k Calories /h = 15826 kJ/h = 4. You are correct up to a point. Then how to choose the right cooling capacity of the fan coil unit? Gnerally, we have different standard according to different fuanction. How to Figure BTUs for HVAC Sizing. The size (cooling capacity) of your air conditioner is determined by the amount of Btu (British thermal unit) and the Tonnage (12. To calculate capacity at medium or low speed refer to the capacity Multiplier vs Speed table (Page13). A fan coil unit (FCU), also known as a Vertical Fan Coil-Unit (VFC), is a simple device consisting of a heating and/or cooling heat exchanger or 'coil' and fan. Luckily there are many online suppliers. The parameters in Figure 2a are kept constant for all the calculations. When time enters the equations, the ability of a material to store or release heat becomes a crucial parameter. Freeze Dryer Comparison Our freeze dryers / lyophilizers have been developed from over 50 years of experience in the freeze drying world. 2 ton per zone +. 90 kW= 90 cabinets x 1 kW/cabinet (2). The biggest problem with sizing your furnace and air conditioner is that so few people know how to do it accurately. With the fixed-rate method, you can claim 52 cents per work hour for heating, cooling, lighting and the decline in value of office furniture, plus the work-related portion of your phone and. Let say we have cooling tower with the following data: Inlet water flow rate = 10 000 gpm. Therefore, I have decided to include the detailed calculation procedure in order to enable many students & process engineers who are interested in improving cooling towers performance by following. When you sign up, we offer you a 1-day free trial of 50 calculations. This will display conversion in all units. Basically, 1 ton= 12,000 BTU/hr. TOTAL FLOOR AREA BASIC COOLING CAPACITY M2 SQ. using a RAID 10 implies that only 50% of the raw physical storage purchased is available to applications as usable storage. In order for PG Plus to continue its job in the protection of your engine’s cooling system, the additive level must be checked with the simple 3 way test strip kit. 5,000 = Altitude of the installation. Larger units may be rated in tons of cooling. The ML500's system capacity is 12. In this training we are going to learn How to calculate GPM for FCU & AHU for chilled water system. A Guide to Understanding Chilled Water Systems 659 Van Meter Street Cincinnati OH 45202-1568 T: 513 241 1230 F: 513 241 1287 Email: [email protected] We started XSPC with one vision – water cooling components that don’t sacrifice reliability and offer superior performance. Terminal Units Fan Coils, Chilled Beams, Finned Tube, Radiant, etc. org, the values from the AHRI database take precedence. Need to using FCU ducted system. day-night, summer-winter, climate zones) have to be taken into account. I have chilled water flow in GPM and supply & return temperature in C. Load calculation must be performed by a professional heating and cooling expert. Cooling equipment in this matter increases its efficiency by providing a steady thermal environment. The electric capacity of fancoil consumption is about 100-500 W and depends on the capacity of the fan’s electric motor. This is called moisture carry-over. Conversion Rates for I-4 85%. An air conditioners' cooling capacity is measured in British Thermal Units, or BTUs. It's designed to help you compare the total load of different systems. 5 Performance of Air Conditioning System 37 3. If the air conditioner has a 1. In Figure 1, the total power consumption (fan and pump) is plotted against. Although the prototype is designed under low-temperature heating conditions, its rated heating and cooling capacity need to be tested under the standard condition and hence to make a comparison with the normal fan coil unit. The heat capacity of the water component of the soil (q mcpw) depends on the water content and the heat capacity for water. B - Massecuite - ( 6 to 8 hours cooling purpose + 3 hours curing purpose) - Air cooled + water cooled. Total Cooling Capacity [kW]: Total heat energy removed from the air by the unit which is the sum of the sensible and latent cooling capacities. Cooling Capacity Calculator: How to Find the Right BTU for You. Decoupler Primary Pumps Closely Spaced Tees P-1 & P-2 Distribution Piping Air / Dirt Separator Expansion Tank Secondary Pumps P-B-1 & P-B-2. The basic SI units equation for deriving cooling capacity is of the form:. 5c Heat gained by water and container = (0. The following calculation can be done after you have done your cooling load calculation to determine your total sensible load. Chilled Water Fan Coil Unit DCBL VAV Stepless FCU Model : HFCA03~HFCA14 Cooling Capacity (Example) 03 04 06 08 10 12 14 509 678 1018 1357 1696 2036. Ceiling Cassette Type. Example 1-2. 9, Operating Cooling Load, e. 99 Sebastjan Valic iOS Version 1. Terminal Units Fan Coils, Chilled Beams, Finned Tube, Radiant, etc. When you embark on the project of educating yourself about building science, one of the first things you encounter is the concept of heating and cooling loads. Using the energy equation of Q = ṁ x Cp x ΔT we can calculate the cooling capacity. Newer reciprocating chillers may have a recirculation rate that is less. This means that, where applicable, the information pertaining to the building (as is the case in the Project and Climate report) or a system, zone or room (as it the case for the loads reports) are contained on a single page. The system needs topping up from time to time. Calculation program on the air. pump and air conditioner capacity for new manufactured homes. ?Then input the fan-coil unit description under the Zone components tab. Our Wine Cellar Cooling Calculator can help you select the proper wine cellar cooling system for your wine cellar. CX30 UL 1995/ TUV Listing. For example, if there are 10 cooling units, each having a capacity of 3 tons, out of which only 7 are actually running, then the running cooling capacity in kW is 739kW. 17 gallons, so you have almost a spare gallon to flush it with. 4[degrees] C), the humidity ratio changes across. It does not matter if the entry is gallons or liters so long as you understand the answer of suggested coolant volume will also be in the entry designation. = Gallons per hr x 8. You can enter details on the cooling system including the maximum capacity (at zone level). chiller cooling capacity calculation imperial units how to calculate cooling capacity of a chiller. or to do it yourself:- click below:- DOWNLOAD and Just "fill in the blank spaces". Heating Cap. If you need a custom solution such as custom paint option, increased air flow, or unique dimensions, please contact your sales representative. Chapter 3 / Lesson 4. Download Specific Heat Capacity Unit Converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. The calculation is illustrated in the following. To calculate the total heat removed from the air stream in a cooling coil, we must account for the sensible and latent heat. Cooling Capacity (Example) Model Speed Nominal Airfl ow DCBL Nominal Airfl ow Cooling Cap. ‘Cooling capacity’ is the measure of an air conditioning system’s ability to remove heat from a room, thus making the room ‘cooler’. Goodman GSC130481 Central Air Conditioner, 4 Ton Cooling Capacity, 48,000 Btu Cooling Capacity, 13 Seer Efficiency, Copeland Scroll Compressor Type, 208/230 1 Phase Voltage, 40 Amps Max Breaker Size, 197/253 Min/Max Volts, R22 Refrigerant Type, 7/8" Suction Line Size, 3/8" Liquid Line Size, Copper tube/aluminum fin coil, 850 RPM condenser fan motor (GSC-130481 GSC 130481). Residential HVAC sizing has a substantial impact on the efficiency and operating costs of the HVAC. capacity from 236 to 551 Fins Per Meter (FPM). ppt), PDF File (. Immersion Coil Surface Area Calculator For Cooling with Water This tank cooling calculator can help you determine the required surface area of an immersion coil using water as the cooling source. The result is the cooling capacity you need for your data center. 2 Carrier 42C/V is a range of fan coil units designed for horizontal/vertical, concealed/cabinet application. When a furnace is provided, it must be selected for cooling airflow (furnaces are manufactured in various combinations of heating capacity and cooling airflow), so upsizing the cooling may mean unnecessarily upsizing the heating as well. Therefore, 12,000 Btu per hour equals one ton of cooling,. If you have a 5,000-square-foot space, divide that number by 500 to get 10. 96 air flow rated at high speed cfm 2,667 3,000 3,333 4,000 5,000 cmh 4,531 5,097 5,66 6,796 8,495 l/s 1,259 1,416 1,57 1,888 2,360 fan coil unit type ducted type evaporator blower multi blade cen rifugal fan. 5 Where: Qt = Total capacity in btu/h Hf = Enthalpy of the leaving air Hi = Enthalpy of the entering air 4. either is it providing notably colder air than your calculation is assuming, or perhaps it is assuming a higher return air temperature. Loop, Equipment Sizing and other Design Data The importance of correct equipment sizing is often ignored in discussions of building simulation methods. Furthermore, the mass of each material can be substituted with volume. where inlet temperature of material is 180oc. Cooling capacity (BTU/H) = Internal Heat Load ± Heat Load Transfer Fan Selection Example A NEMA 12 Hubbell Wiegmann N12302412 enclosure (30" high x 24" wide x 12" deep) contains a GS3-2020 AC drive (20 HP 230 volt) that has a maximum allowable. Air Conditioning Cooling Capacity Calculations BTU Materials datasheet for installation of air conditioner system Cooling capacity for a room is defined as the heat load in a room that has to be removed in order to achieve a certain room temperature and humidity. Dairy farm milk cooling energy use and cost calculator. The cooling capacity of air conditioners is usually measured in tons. / Input Power Model Motor Input Power (Watts): Hi-Static Motor Max. Cooling Formulas : CONVERSION: 1 Ton = 12000 Btu/hr COOLING LOAD REQUIREMENT: Total Cooling Load (Btu/hr) = 4. Desired Temperature in Winter=28 C. Then multiply the room volume by the required number of air changes per hour, i. So we take 10 L/person/h (total = 500 L/h or 2 USgpm) Potable water demand must consider peak demand = 20 + 3 + 2. The capacity control range can be as low as 6% to 100%. structure and capacity. J kg-1 K-1. This process will allow the team to minimize the radiator's size and optimize cooling to increase performance. Typically only DOAS systems have cooling in the zone. It is air-cooled water heat pump chiller so there is no need of cooling water tower at the condensing side. A Booster coil is a serpentine type coil with many return bends. To calculate leaving air wet bulb temperature Total capacity = 4. Fan Coil Units. using a RAID 10 implies that only 50% of the raw physical storage purchased is available to applications as usable storage. = 390 J/kgK L. The result is the cooling capacity you need for your data center. A heat pump transfers energy by moving a refrigerant, which alternately absorbs and releases heat. 5 9 6 8 10 12 6 8 10 12 6 8 10 12 6 8 10 12 6 8 10 12 6 8 10. X CFM X ∆ T. Standard Ship Almost all coils ship in 4-5 weeks as standard. 82 KJ/mol The. How to Calculate the Minimum Flow Rate of the Cooling Water. 1/2 ton up to 400 ton injection. Cooling a room with 2 liters of ice: calculation. CX30 UL 1995/ TUV Listing. , and (2) bin drying. 25 = 15000 Btu /h = 3782 k Calories /h = 15826 kJ/h = 4. The cooling capacity of air conditioners is usually measured in tons. 05x385x5) = 18996 Therefore 37. Calculate the friction loss rate HOW: Determine the external static pressure of the blower using the manufacturer's specs. Concrete cooling tower: Cooling tower in which the structure is made of concrete. 51 × 539 × (31. Final temperature, 0 C. [email protected] unit enables the VRVIII series to operate at outdoor ambient conditions down to 23°F in cooling mode and down to -4°F in heating mode. The reverse of this gives you ‘heating capacity’ (i. BTU Calculator AC BTU Calculator. Coolant flow as a function of power for C3F8 and C4F10 have been calculated from Enthalpy tables supplied by 3M. 7 Full Specs Visit Site External Download Site. Download the Air Conditioner Condensate Calculator (Excel file) Back in 2008 when I wrote a series of articles for Environmental Building News on water, one of those articles, Alternative Water Sources: Supply-Side Solutions for Green Buildings, examined various ways of harvesting water and included an in-depth look at collecting air conditioner condensate. A water cooling calculator is provided below to perform these quick calculations. A fan coil unit is a diverse device sometimes using ductwork, and is used to control the temperature in the space where it is installed, or serve. Hydronic Concealed Fan Coil Unit. pdf), Text File (. You can enter details on the cooling system including the maximum capacity (at zone level). With the fixed-rate method, you can claim 52 cents per work hour for heating, cooling, lighting and the decline in value of office furniture, plus the work-related portion of your phone and. Decoupler Primary Pumps Closely Spaced Tees P-1 & P-2 Distribution Piping Air / Dirt Separator Expansion Tank Secondary Pumps P-B-1 & P-B-2. Note: The formula is simplified and focused on IT cooling requirements, excluding other loads such as lighting and solar gains. Hydronic Chilled/Hot Water Universal Mount Fan Coil Unit, 4 Pipe System, 208/230V-1Ph-50/60Hz, Capacity 1 to 5 Ton from $ 1,855. Disclaimer: This calculator is to be used as an indicative guide only. Let's say , Total Cooling Capacity of FCU is 22kW and Total Cooling Capacity of AHU is 250kW. Because the unit transfers heat to the space using forced convection, the coil heat transfer area required is reduced as compared to a chilled beam, which transfers heat to the space using primarily natural convection. Standard Ship Almost all coils ship in 4-5 weeks as standard. 6kW of heating capacity is required to heat a room, a heat pump that is rated at 5. The volumetric heat capacity is r w c pw, which is approximated as J m-3 K-1. For the purpose of condenser capacity calculations, batch pan evaporation rates are to be considered between 50 to 60 in kg/m² /hr and for continuous pans between 20 to 30 kg/m² /hr. 10,000-12,000 BTU Custom Fan Coil Units for Chiller. BTU/H* 9-14 100-150 5000 14-23 150-250 6000. In Figure 1, the total power consumption (fan and pump) is plotted against. How to Calculate Condensate Flow From AC Units. Furthermore, the mass of each material can be substituted with volume. If your process runs below the design temperature your chiller will lose capacity at a rate of 20% per each 10 oF below 50F. Complete Manual J /HVAC Heat Load Calculation Service by Experienced Licensed Contractors w/ 15+ years Experience using ACCA approved Software. First Step - We need to know the total cooling capacity of AHU or FCU. Of Entering Air -ENTH of Leaving Air. Horizontal Standard Fan Coil Unit, Concealed with Plenum Factory assembled, horizontal blow-thru ducted KHFP fan coils are designed for concealed installations above ceilings with ducted return and discharge air, which are suitable for projects such as hotels, motels, condominiums, and general commercial applications. It will help in reducing the temperature of the patient (Noah & Noah, 2013). In recognition of this fact, the calculation of hot-spot temperatures is modified slightly for directed-flow cooling class transformers. The 17 to 22 kW ducted air conditioning systems are popular choices for larger home and commercial heating and cooling. Counter Flow Series; Ethanol Series ©2003-2020 Cooling Tower Depot, Inc. To determine the size of chiller you’ll need for your plastic process cooling application, follow this formula: Calculate the pounds of material per hour being processed. Most other chiller manufacturers cycle the compressor at less than 50% load, which causes increased wear on the. Unit converter:. BTU Calculator - Room AC Size Guide. 5 7# 100% 8# 112. in simple words it is a very small air handling unit and suspended above the false ceiling. The higher the tonnage, the bigger the air conditioner and the more cooling power it has. Another common unit is the ton of refrigeration, which describes the amount of water at freezing temperature that can be frozen in a day (24 hours). 47 kW for sensible cooling load, and I did the zone component load summary to get a cooling load breakdown of the model, and I am not quite sure about interpreting the. 8F) Giving us a cooling capacity of 8,533,364BTU/h. LHC Air Oil Coolers For mobile and industrial use - maximum cooling capacity 300 kW Lifetime Cooling capacity The Olaer Group is part of Parker Hannifin since July 1st, 2012. The SI units are watts (W). 396 kW The equivalent ton on the cooling tower side actually rejects about 15000 Btu/h due to the heat-equivalent of the energy needed to drive the chiller's compressor. FAN COIL ENGINEERING FAN COIL ENGINEERINGe2 Introduction PROPERTIES OF COILS AND COIL DESIGN Fan coil units can be used to introduce outdoor air into a space, circulate and filter air within a space, and provide heating and/ or cooling within a space. One CFM equals about 28. For example, if your vehicle's antifreeze levels are at 25 percent and the vehicle holds 12 liters of coolant, then you would multiply 0. The actual electrical power used to. If restricted. :12℃ Water outlet tem. 00 oF Water Leaving Dry Bulb: Flow Rate: 105. Herbert, prospecting for gold in south-eastern Australia, saw something sublime in the evening sky. We are delighted to offer you this air-con calculator to help you establish your requirements. Our conclusion was that the immediate additional heat load resulted in a 25% increment, so the existing cooling tower, pumps, and piping were unable to handle the incremental load, and a new. - By modulating cooling capacity, frequent on/off cycling is avoided, which in turn improves efficiency and latent. When the liquid refrigerant reaches the evaporator its pressure has been reduced, dissipating its heat content and making it much cooler than the fan air flowing around it. gross cooling capacity - fan heat = net (rated) cooling capacity. This separated cooling compressor actually pumps the coolant through the lines causing the vaporizing to gases of the coolant thus causing the “A”coil to get cold. Second Step - We need to calculate the chilled water flow rate. Contents • Principle of cooling load • Why cooling load & heat gains are different • Design conditions • Understand CLTD/CLF method • An example 3. This app made by experienced mechanical engineers and software engineers, which the app does thousands of calculations in the background just in order to give you precise results. Chilled water temperature varies between 5-7'C. This calculation will not work for a whole house or commercial location, but is ideal for determining your mini split, through-the-wall, PTAC or window AC size. Total Cooling Capacity [kW]: Total heat energy removed from the air by the unit which is the sum of the sensible and latent cooling capacities. (Assume no loss of heat and that no water is vaporised. Tonnage Duty Calculator Flow (Gallons Per Minute) Hot Water Temperature °F ©2003-2020 Cooling Tower Depot, Inc. Calculation program on the air. Hence, higher the BTU, greater will be the cooling capacity, which means the AC will be able to cool a larger area. The GPM formula is derived from the equation of HEAT Formula : Q = mc∆T Heat Formula: When. 2 You have the ideal size for your needs. This tool defines basic characteristics of the IT load and calculates how much utility input power would be required to support that load, allowing users to experiment with “what if” scenarios by modifying the load characteristics of servers, mainframes, and storage. Determine pump lift Total lift of the circulating water. Hydronic Chilled/Hot Water Universal Mount Fan Coil Unit, 4 Pipe System, 208/230V-1Ph-50/60Hz, Capacity 1 to 5 Ton from $ 1,855. Commercial airconditioners Ceiling Concealed Chilled Water FCU. A fan coil unit is a diverse device sometimes using ductwork, and is used to control the temperature in the space where it is installed, or serve. 078kW/ton 90%. Common air conditioning rating is giving in BTU/hr. Corporate Office/Manufacturing: Saginaw Control and Engineering. Desired Temperature in Summer =28 C. Pick the type of calculation you need and wait for the page to load. / Input Power Model Nominal Entering Water Temperature. Load Calculation: Find out how much cooling capacity you need. Air Pressure Drop – We typically design for less than an inch on all applications and look for a pressure drop near 1/2″. 2 Carrier 42C/V is a range of fan coil units designed for horizontal/vertical, concealed/cabinet application. A schedule value greater than 0 (usually 1 is used) indicates that the fan coil unit can be on during a given time period. h s = c p ρ q dt (1) where. Learn more about the units used on this page. the project introduces a boutique farm, garden kitchen, cooking school, and reception venue, all. STANDARD AIR=. The air's water vapor condenses into water and either discharges directly or drains into a specific duct. This airflow requirement will depend on the heat generated within the enclosure and the maximum temperature rise permitted. Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop Total Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop Total Capacity Sensible Capcaity Water Flow Rate Water Pressure Drop cfm MBh MBh Usgpm ftwg MBh MBh USGpm ftwg MBh MBh USGpm ftwg l/s kW kW l/s kPa kW kW l/s kPa kW kW l/s kPa 600 12. * KV, where KV is kinetic viscosity, but an approach normally used on the field is: Water Flow required in GPM=3. (2011) which predicts the capacity ratio of a fan coil unit for a change in the water flow rate. feet, the basic AC capacity required will be 0. It is advised to reconfirm with your air conditioner contractors again before you place your order. The cooling capacity test shall be carried out at standard cooling in full capacity and 50% of full capacity with appropriate frequency settings in order to achieve standard cooling at 50% of full capacity. – Specific Heat X Specific Density X 60 min. 00 CAD FAN COIL ENCLOSURE (MPE468) Quick View. Decoupler Primary Pumps Closely Spaced Tees P-1 & P-2 Distribution Piping Air / Dirt Separator Expansion Tank Secondary Pumps P-B-1 & P-B-2. HVAC Calculations and Duct Sizing Gary D. 5 Performance of Air Conditioning System 37 3. One CFM equals about 28. Responsive them por PC, tablet and mobile screens. Motor Power. Terminal Units Fan Coils, Chilled Beams, Finned Tube, Radiant, etc. 4 to 84 kW and the heating capacity range from 25 to 95 kW. 5c(100 - 25) = 37. promising high cooling and heating efficiency. By cooling tower capacity, do you mean its cooling capacity or its water flow capacity? If you know the water flow entering the cooling tower and if you know temperature of the entering water and the leaving water, then the amount of cooling is: Q, Btu/hr = (water flow, lbs/hr)(ΔT, °F)(sp. Liquid is pumped through a cooler, it absorbs heat, and it's cooled back down with a radiator. When operating below 50 ° F you must decrease the rated chiller cooling capacity by 2% for every one degree F you operate below 50 ° F. Assuming a supply air condition of 55[degrees] F (12. SEER (Seasonal Energy Efficiency Ratio) - A measure of the average annual cooling efficiency of an air conditioner or heat pump. Refrigerant temperatures at direct expansion systems can be as low as 2' C. If desired, the program can also be used for selecting products and calculating the resultant temperature. 006 kJ/kg o C) ρ = density of air (1. : 7℃ Country: UAE Chiller type: air cooled Cooling capacity: 41kW Cooling medium: R134a Supply power: 3P-380V-50Hz Compressor brand: COPELAND Compressor type: scroll Water inlet tem. When you embark on the project of educating yourself about building science, one of the first things you encounter is the concept of heating and cooling loads. Let’s be 12 feet wide 15 feet in that room. Smaller systems usually use axial cooling fans, where airflow is perpendicular to the fan blades. How Much Cooling Capacity Should I Purchase? Opti Temp chillers use their patented ARCC control (Advanced Refrigeration Capacity Control) circuitry providing for no load to full load capacity control without cycling the compressor. 1 * Total IT critical load in kW. This calculator will help you to find an accurate size for an adequate room air conditioner unit capable of cooling the room. Together, they are not generally adequate for cooling. 500 Water Flow in GPM= 1. 3 kW to 28 kW. Now, you need to add 0. 1,600 = Airflow in cfm. Cooling Load 2. For most materials the molar heat capacity is 25 J/mol K. 4% cooling design condition in Athens, Georgia. High Seer HVAC, Mini Split, Multi Split, Pioneer, Heat Pump, Air Conditioner, Inverter. You can easily determine the requirement in this case by multiplying the cubic footage by 0. Subtract the Sensible cooling capacity from the Total cooling capacity to get the Latent cooling capacity. Q = Btuh (Solved above = 15,490 Btuh). Please update the following information as it applies to your tower needs:. , located in Dubai, UAE provides Eurovent Certified Fan Coil Units with UL recognized motor components. The size of the system is listed in BTUs (British thermal units). So we need to convert this into kilowatt hours because we buy by kilowatt hours. Additionally, users can select between standard or performance sintered wick materials. 3 Hair,out=39675. We’re equally adept at identifying cost-effective cooling solutions for New York’s schools and universities, medical centers, office and residential towers, data centers and retail complexes. Air Conditioner (AC) Unit Tonnage Calculator. 000 Btu = 1 Ton). Design and calculation for Car park Ventilation, Smoke extract and Staircase pressurization. Calculate the size your air conditioning There are a number of complex and involved calculations our design engineers make when sizing an air conditioning system for a premises. Chiller Capacity Loss: Chiller are design for 50oF operation. condensation we see on the fins of most cooling coils is a result of the latent heat that was removed from the air stream and resulted in the water vapor changing to a liquid state. The Bamboo COO told us his team used AWS’s Total Cost of Ownership calculator to estimate the three-year cost of operating a rack of eight 2U Dell PowerEdge R740XD servers totaling 16kW of capacity. Technical, imperial or metric measure systems. The fan coil units can be installed either on the. 15K to the celcius to convert it to units of Kelvin. Daikin is the only VRF manufacturer to provide capacity tables up to. cooling coil condensate can be calculated by the following formula" cc condensate (gpm)=(4. / Input Power Model Motor Input Power (Watts): Hi-Static Motor Max. 10 times 12,000 is 120,000 Btu. SEER (Seasonal Energy Efficiency Ratio) - A measure of the average annual cooling efficiency of an air conditioner or heat pump. The time for which you need to cool. If any discrepancy exists between the values shown here and those shown in the database on AHRIDirectory. This document contains the most current product information as of this printing. Factors affecting cooling load The amount of cooling required depends on a large number of factors. If the indoor evaporator coil starts to ice over, it will prevent the coil from properly absorbing heat from the inside and lower the cooling capacity. Determine if the extruder or any auxiliary equipment will require chill water. Heating Cap. 10 times 12,000 is 120,000 Btu. There are factors beyond our control that will affect operation: use of single-paned glass on a door or window, improper insulation, failure to provide an air tight seal to the room or. 6 Sample of Cooling Capacity Calculation 38 5. 05 Step 3 Calculate SH = 11500 = 0. This equivalent ton is defined as the heat rejection in cooling. A fan coil unit (FCU), also known as a Vertical Fan Coil-Unit (VFC), is a simple device consisting of a heating and/or cooling heat exchanger or 'coil' and fan. Furnaces are rated as the input Btu/h, but the capacity is derated by the efficiency level. Please enter the details required for an estimate of your climate control requirements. The electric capacity of fancoil consumption is about 100-500 W and depends on the capacity of the fan’s electric motor. This calculator will help you to find an accurate size for an adequate room air conditioner unit capable of cooling the room. FAN COIL UNIT SELECTION PROGRAM - User Manual While all care has been taken to ensure correct operation of the Fan Coil Selection program, Temperzone Ltd. It should not be considered as a replacement for expert advice or a precise and detailed heat load calculation. First Step - We need to know the total cooling capacity of AHU or FCU. Fax: 02392 529272. This allows maximum benefits to be taken of cheap rate electricity tariffs. Table1 Parameters used in above calculation Symbol Parameter Unit Symbol Parameter Unit 1E Power of fan coil unit W 2E Power into room of testing W 1W Water-carrying capacity flow past fan coil unit Kg/s 2W Water-carrying capacity flow air handling unit Kg/s C Mass specific heat of water J/Kg. Basic Form Of Calculation: To calculate the size, multiply the length of the room or area. The close control of polymer quenchant solutions is essential for their successful applications, in order to avoid. Determine if the extruder or any auxiliary equipment will require chill water. Compact (570mm x 570mm) Nominal Cooling Capacity are based on the conditions below: Cooling - entering air temp. select the size specified for 50 equivalent feet for the 8’ or 12’ case. This process will allow the team to minimize the radiator’s size and optimize cooling to increase performance. ) That's why we do heating and cooling load calculations. Following items will be discussed and calculated in this article : - Evaporation - Temperature Drop. ℃ Heating Conditions: Entering Water 60 , Air 21℃DB, the same water flow as the cooling conditions. Compared with the traditional air cooling generator, the large capacity generator with immersion type evaporative cooling technology features the similar simple and reliable structure as the air cooling technology, in the mean time, because of the phase change heat transferring process of the evaporative cooling, the heat exchange rate is highly improved. I-4: Fan Coil Unit, Ceiling/Wall Hung (DX Unit) Enter tonnage of the unit into Maintenance Feeder. First, express the mix ratio as a percentage, like this: Mix Ratio Percentage. The cooling load in tons is be found for selecting cooling and air handling units. 08 x (EAT - LAT) CFM = Cubic Feet per Minute. The second method, which is more detailed, involves the use of the Carrier E-20 simulation program to calculate the loads. Polymer quenchants are becoming increasingly popular as substitutes for traditional quenching media in hardening metallic alloys. During the selection process, make sure your heating and air conditioning can meet the following criteria: MEETS TOTAL HVAC LOAD: The total cooling load is determined by the ACCA Manual J heat gain calculation. In ideal conditions without dehumidification, the SHR is generally 1. Additional Catalogue Information. Our question is this. It is part of an HVAC system found in residential, commercial, and industrial buildings. If four people work there, add 1,520 (380 Btu x 4). The MarketWatch News Department was not involved in the creation of this content. Final temperature, 0 C. Cooling Tower: Performance calculation - I I am invariably finding many hits on cooling tower capacity & performance calculation and related queries. For example, if your mix ratio is 8:1 or 8 parts water to 1 part solution, there are (8 + 1) or 9 parts. The chiller's minimum flow rate is the flow rate that produces a desired. Sensible Cooling Load (Btu/hr) = CFM x Density Factor x (T1 – T2) Latent Cooling Load (Btu/hr) = CFM x 0. Later cars have a sealed system in which any overflow goes into an expansion tank , from which it is sucked back into the engine when the. Sales and Support Centers EMEA : +46 31 420530 Asia / Pacific: +86 755 2714 1166 Americas: +1 919-597-7300. edu is a platform for academics to share research papers. Using a square footage calculation for this example yields a cooling requirement for all three sections of 2,844,000 Btu/hour, or 118. Therefore, if you are adding finishing operation SAM, manual work (like marking, ironing) SAM, into the total garment SAM, those workstations will be part of the calculating factory capacity working hours. Nominal total cooling capacity = 20700 Btu/hr Nominal sensible cooling capacity = 13960 Btu/hr Step 2 Refer to Table 2, determine total capacity correction factor FT at entering water temperature of 43°F and entering air wet bulb temperature of 67°F, FT = 1. This will display conversion in all units. Static pressure through complex systems cannot be easily arrived at by calculation. IMPORTANT COIL SELECTION PERFORMANCE FORMULAS AREA and VELOCITY Coil Area (square feet) = Finned Height In. Based on the Manual S sizing limitations (100%—115% of the cooling load), the air conditioner must have a capacity between 30,000 Btu/h and 34,500 Btu/h (115% x 30,000). You can converted the rating BTU/hr to kW by multiply BTU/hr with 0. The calculation is illustrated in the following. Usage: When BTU requirement is known (most applications): - enter the BTU requirement - Temp In, Temp Out, and GPM are shaded for Hot and Cold - enter two of the three shaded portions for Hot - enter two of the three shaded portions for Cold. [Click to enlarge any image] "One ton" of cooling capacity, historically, referred to the cooling capacity of a ton of ice. Let’s calculate each component. 3 Calculate the required thermal power capacity (Pt) (Pt ) = absorbed power (kW) ÷ thermal service factor. This air conditioner will consume 1680 kilowatt hours per year. Capacity in these instances is always measured using the rated conditions specified in the official. This means that, where applicable, the information pertaining to the building (as is the case in the Project and Climate report) or a system, zone or room (as it the case for the loads reports) are contained on a single page. If the space faces due north or northeast 0. How to Calculate How Many BTU's You Need. Let’s be 12 feet wide 15 feet in that room. Cooling Capacity Factor: The cooling capacity factor (CCF) is a metric for environmental controls created by a company called Upsite. Supply air in the building is to be 65 F db. For each material type, divide the total pounds processed per hour by the number of pounds per hour that can be processed with one ton of cooling, per the. Step One: Print out this calculator Step two: Measure the area to be air conditioned / heated, including windows, doors etc and what direction they face. The capacity estimation model of the fan coil unit was created based on an approach previously described by Markusson et al. (2011) which predicts the capacity ratio of a fan coil unit for a change in the water flow rate. Ice can be made even when the milk does not need cooling. A ton of cooling capacity is the same as 12,000 BTUs per hour, and the term has its origin in the cooling effect of a ton of ice. 5 tons of ice in a day. zip) This file covers the examples of 1-1 through 1-4. Cooling capacity. 2015 BMW 320i xDrive coolant & oil capacities >Oil, coolant and fuel capacity for BMW 320i xDrive in 2015, the model offered up to June 2015 for Europe - factory declared capacities of oil, coolant and fuel. / Input Power Model Nominal Entering Water Temperature. Many nozzle companies use a part number that describes the spray angle and flow rate at 40 PSI. But as a member of Changing Seasons Federal Credit Union, you’ve got another constant: us. facilitate heat transfer. For this cooling example, we will select an air conditioner for a home with the following Manual J cooling loads: Sensible Cooling 22,000 Btu/h Latent Cooling 8,000 Btu/h Total Cooling 30,000 Btu/h. * By upgrading to a high-efficiency system, you can cut your energy costs while keeping your family perfectly comfortable. This calculator is provided for a quick and approximate check of heat loads. Discover a universal assistant for all of your unit conversion needs - download the free demo version right away!. Components of Cooling Towers 4. Following items will be discussed and calculated in this article : - Evaporation - Temperature Drop. Since there are many variables which can effect the size of unit required in your home, we recommend you CONTACT US if you would like a more accurate assessment of your requirements. The four-pipe fan coil unit system is cost-effective from a chilled water and heating water pumping perspective. One is the mix ratio of the coolant in the system now. 0007643BTU/lb. Enclosure Coolers Today’s small, compact multi-function electronic controls, variable speed drives, servos and programmable logic controllers are extremely sensitive to heat and contamination. gpm = gallons per minute of coolant flowing through the equipment. cooling coil condensate can be calculated by the following formula" cc condensate (gpm)=(4. Hair,in = 70561. Find here Fan Coil Unit, Fan Coil manufacturers, suppliers & exporters in India. Depends on what information you are starting with. The heat index — a calculation of the mix of heat and humidity — reached 105 in eastern Palm Beach County as of 2 p. So we take 10 L/person/h (total = 500 L/h or 2 USgpm) Potable water demand must consider peak demand = 20 + 3 + 2. Sensible Cooling Capacity [kW]: Heat which is removed from the air by means of a dry-bulb temperature drop. Load Calculation: Find out how much cooling capacity you need. This easy-to-use Cold Room Calculator, based on common refrigeration practise, quickly calculates the required cooling capacity for cold rooms in cooling and freezing conditions. There are factors beyond our control that will affect operation: use of single-paned glass on a door or window, improper insulation, failure to provide an air tight seal to the room or. based on this calculation you can then go to suppliers' literature and determine which fans have the required air displacement performance. For the system, under the General tab choose ?terminal units, 2-pipe fan coil (if they are cooling only) then choose common ventilation system. To estimate the required cooling or heating capacities, one has to have information regarding the design indoor and outdoor conditions, specifications of the building, specifications of the conditioned space. Brandemuehl, Ph. Wondering what size air conditioner you need? Our BTU calculator is designed to determine how many BTUs are needed for a single room. Those numbers can be determined from name plate obviously. 5 9# 125 10# 137. For this cooling example, we will select an air conditioner for a home with the following Manual J cooling loads: Sensible Cooling 22,000 Btu/h Latent Cooling 8,000 Btu/h Total Cooling 30,000 Btu/h. It will also calculate space needed for a specific amount of people. To estimate the required cooling or heating capacities, one has to have information regarding the design indoor and outdoor conditions, specifications of the building, specifications of the conditioned space. In central HVAC systems, cooling systems based on indirect evaporative cooling are becoming increasingly important. Close fin spacing is the most economical way to increase heat transfer performance, however the coil will collect dirt at a greater rate. The SI units are watts (W). Common air conditioning rating is giving in BTU/hr. Conversely, if I were to use a 2. Hence, higher the BTU, greater will be the cooling capacity, which means the AC will be able to cool a larger area. 1- Absorption Chiller, How it works - working principle hvac 2- Air Cooled Chiller - How they work, working principle, Chiller basics marcool factory 3- CALCULATE Chiller cooling capacity - Cooling Load kW BTU Refrigeration Ton 4- Calculate. High Performance HVAC Heating and Cooling. In this training we are going to learn How to calculate GPM for FCU & AHU for chilled water system. Enter the requirements of your application. 2kW Associated Equipment = 1. A standard air conditioner ranges in size, from smallest to largest:. Booster coils are rather flimsily constructed to keep the cost low. We’re here to help you embrace whatever life brings your way, with the financial products you need, the ease of access and mobile technology you want, and the personal service you deserve. High Seer HVAC, Mini Split, Multi Split, Pioneer, Heat Pump, Air Conditioner, Inverter. The total cooling capacity is determined as the cooling capacity measured on the water side minus the fan power input (net value) (new definition from 2016 campaign). apply that to the formula, and it would be 3. The start and finish temperatures of the water in °C must be known. In this article explained about basic concepts of cooling tower, types of cooling towers, formula for cooling tower efficiency. cooling coil condensate can be calculated by the following formula" cc condensate (gpm)=(4. Available in several languages. Length (q): Width: Height: Dimension units:. Another option is to duct the outdoor air into the fan coil unit (Figure 3). Volume of Pool Cubic Meters=L x W x H = 23. Polymer quenchants are becoming increasingly popular as substitutes for traditional quenching media in hardening metallic alloys. If four people work there, add 1,520 (380 Btu x 4). 1 The term “Tons” refers to the cooling capacity of ice and is a relic of the period from 1870-1930 when refrigeration and air conditioning capacity were provided by the daily delivery of ice blocks. A value less than or equal to 0 (usually 0 is used) denotes that the fan coil unit is off. Then, a practical number, multiply by 25 BTU. 513 kb: Cooling And Heating Load Calculations -Estimation Of Required Cooling/Heating Capacity: Cooling And Heating Load Calculations -Estimation Of Required Cooling/Heating Capacity: PDF: 0. Calculate W during the cooling cycle. An air conditioners' cooling capacity is measured in British Thermal Units, or BTUs. The function GetCoilDesFlowT in module ReportSizingManager calculates the air flow rate and exit air temperature for each capacity control method. Cooling Load Temperature Differential/Cooling Load Factors (CLTD/CLF): This method is derived from the TFM method and uses tabulated data to simplify the calculation process. Mass of the cooled substance, kg. Q = (16,649FT3/h x 62. Swimming pools thermal calculation.