Enter the boiler power and the desired temperature rise into the calculator to determine the flow rate. This calculator helps in sizing the boiler and designing the heating system.
Boiler Flow Rate Formula
The following formula is used to calculate the boiler flow rate.
FR = (P * 3600) / (ΔT * 4.186)
Variables:
- FR is the flow rate (liters per hour)
- P is the boiler power (kilowatts)
- ΔT is the temperature rise (degrees Celsius)
To calculate the boiler flow rate, divide the product of the boiler power and 3600 by the product of the temperature rise and the specific heat capacity of water (4.186 J/g°C).
What is a Boiler Flow Rate?
The boiler flow rate is the volume of water that can be heated by the boiler to a certain temperature in a given period of time. It is an important parameter for ensuring that the heating system can meet the heating demands of a building. The flow rate is influenced by the boiler’s power and the temperature rise required for the heating system.
How to Calculate Boiler Flow Rate?
The following steps outline how to calculate the Boiler Flow Rate.
- First, determine the boiler power (P) in kilowatts.
- Next, determine the desired temperature rise (ΔT) in degrees Celsius.
- Next, gather the formula from above = FR = (P * 3600) / (ΔT * 4.186).
- Finally, calculate the Boiler Flow Rate (FR) in liters per hour.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
boiler power (P) = 24 kW
desired temperature rise (ΔT) = 20 °C
