Fin Fan Heat Exchanger Calculations

1 inch od tube 5 8 inch fin height 10 fins per inch and 2 5 inch triangular pitch.

Fin fan heat exchanger calculations.

The value of rfin for use in eq 2 2 is given by φ φ fo o fin root fin r h a a r 1 1 2 5. 2 fundamentals of heat transfer 1 2 1 design of finned tubes 1 2 2 fin efficiency 3 2 2 1 plain geometry 4 2 2 2 finned tubes 7 2 3 special consideration in the calculation of heat transfer 10 3 equations for the external heat transfer coefficient 12 3 1 staggered tube arrangements 12 3 1 1 overview of equations 12. Tube configuration used in this guideline. Apsf external area in ft ft of bundle face area.

K fin material conductivity coefficient. A fin fan is a type of heat exchanger that forces air over a set of coils to cool the process. Fin fan heat exchangers are generally used where a process system generates heat which must be removed but for which there is no local use. Accordingly we will only reiterate the major equations and concepts here.

However if h a p k is greater than 1 00 the fins will insulate and prevent heat flow. P perimeter of the fins. Apf total external area ft of fintube in ft ft 5 58. Fin efficiency and fin resistance the general concept of fin efficiency and fin resistance was developed in chapter 1.

Overall heat transfer coefficient. It is also referred to as an air cooled heat exchanger.