Air Cooled Heat Exchanger Design

This heat exchanger is for what application.?

Is it parallel flow or counter flow or cross flow type?

Generally two methods are used to design heat exchanger. One is LMTD ( Log Mean Temperature Difference ) method and another is Effectiveness Vs NTU ( Number of transfer Units) method.

Depending upon the fluids used different hear transfer coefficients to be used. Please refer any heat transfer handbook for more details.

In oil and gas process, we used to design the air coolers with a header boxes of noncircular "rectangular" type. And to proceed a mechanical design and stress analysis for that type of rectangular header boxes, we use ASME BPVC, Section VIII, Division 1, Mandatory Appendix 13 "Vessels of Noncircular Cross Section".

And for Noncircular Unstayed Flat Heads and Covers, see the same code, Para. UG-34, Equation 5.

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Free download the attached animated file for Air Cooled Bank mechanism at a petrochemical plant by GEA (only 70 KB): Animation_-_Air_Cooler_Bank.