Heat exchanger area
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What is the formula for calculating the heat exchanger area?: Preferably with annotations or examples
Are you referring to calculating the heat transfer area based on the heat transfer amount? It’s more complicated, usually using software
If you are calculating the outer area of the heat exchange tube, use the pi multiplied by the outer diameter of the heat exchange tube, then multiply by the length of the heat exchange tube extending into the tube plate, and then multiply by the number of heat exchange tubes.
The most basic formula for heat exchanger calculation: A=Q/(K* ΔT) A: Heat exchange area (generally refers to light tube); Q: Process heat load; K: Total heat transfer coefficient of heat exchanger; ΔT: Effective average temperature difference heat exchanger calculation of heat exchange area is generally completed by software, commonly used ones are: HTRI, HTFS, B-JAC in ASPEN
I think what the poster may want to express is the selection calculation of the heat exchanger, that is, the heat transfer calculation.
The calculation of the heat transfer area of the heat exchanger is generally done using software. The most basic formula is: A=Q/(K* ΔT) A: heat exchange area (generally refers to light tube); Q: process heat load; K: total heat transfer coefficient of heat exchanger; ΔT: effective average temperature difference
If you want to calculate heat transfer, you should use software, there are too many formulas. There are many coefficients that must be determined empirically. Otherwise, the calculated area cannot guarantee the heat exchange effect.
I suggest you take a good look at the principles of chemical engineering
The calculation of the heat transfer area of the heat exchanger is generally done using software. The most basic formula is: A=Q/(K* ΔT) A: heat exchange area (generally refers to light tube); Q: process heat load; K: total heat transfer coefficient of heat exchanger; ΔT: effective average temperature difference
When applying formulas to hand calculations, pay attention to the unity of the units of each symbol.
When calculating the heat exchange area, pay attention to using the "average diameter", that is (inner diameter + outer diameter) / 2