thermal load calculation
For process cooling
The calculation of the thermal load or capacity of the Chiller is based on:
- Water flow in liters per hour
- The desired temperature at process inlet temperature
- The process outlet temperature
Calculation based on kilograms or liters of product:
- Amount of product to be cooled per amount of time, kilograms per hour, gallons per minute or liters per minute,
- Product inlet and outlet temperature in degrees Fahrenheit or Celsius.
- Specific heat of the product
Thermal load Air Conditioning
Calculation based on thermal load:
The selection of a chiller is based on ARI conditions and usually designers calculate 45oF at the chiller outlet and 55oF at the chiller inlet, considering these parameters the water flow per minute per ton of cooling is 2.4 gallons per minute.
- Thermal Load: (enter thermal load)
- Chiller inlet temperature: (enter return temperature)
- Process outlet temperature: (enter the outlet temperature)
Knowing the water flow
| Flow | 30,000 liters of water per hour | 132.2751 gpm |
| Flow | 30,000 liters per hour 30,000.00 approximate | |
| liters of water = Thermal Load per Machine Kilograms per hour: | 30,000.00 | |
| T1 | Inlet temperature: | 18.00 °C |
| T2 | Output temperature: | 10.00 °C |
| DT | Temperature differential | 8.00 °C |
| CP | Thickness of Product Heat | 1.00 °C |
| QT | Thermal Load per Hour | |
| QT | Product Weight x DT (temperature differential) x CP | |
| Considering 3024 calories per ton of refrigeration Qt = FLOW lts. X 5.5 oC 3024 cal QT= | < 79.3651 Tr of Process |
