Enter the heat exchanger capacity (but/h), the heat transfer coefficient (btu/ft^2*h*f), and the temperature difference (F) into the heat Exchanger Area Calculator. The calculator will evaluate the heat Exchanger Area.
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Heat Exchanger Area Formula
The following formula is used to calculate the heat Exchanger Area.
A = C / (k*dT)
- Where A is the heat Exchanger Area (ft^2)
- C is the heat exchanger capacity (but/h)
- k is the heat transfer coefficient (btu/ft^2*h*f)
- dt is the temperature difference (F)
How to Calculate Heat Exchanger Area?
The following two example problems outline the steps and information needed to calculate the Heat Exchanger Area.
Example Problem #1
- First, determine the heat exchanger capacity (but/h).
- The heat exchanger capacity (but/h) is calculated to be : 1000.
- Next, determine the heat transfer coefficient (btu/ft^2*h*f).
- The heat transfer coefficient (btu/ft^2*h*f) is measured to be: 2.
- Next, determine the temperature difference (F).
- The temperature difference (F) is found to be: 3.
- Finally, calculate the Heat Exchanger Area using the formula above:
A = C / (k*dT)
The values provided above are inserted into the equation below and computed.
A = 1000 / (2*3) = 166.67 (ft^2)
Example Problem #2
The variables required for this problem are provided below:
heat exchanger capacity (but/h) = 5000
heat transfer coefficient (btu/ft^2*h*f) = 3
temperature difference (F) = 4
Test your knowledge using the equation and check your answer with the calculator.
A = C / (k*dT) = (ft^2)
