Air Cooler

Q = -UAD Tlm Ft

Mair/Hout/

U = over all transfer coefficient

A= Surface area available for heat tranfsfer

DTlm= Log mean temperature difference (LMTD)

Ft= Correction Factor

1. Asumsikan A2. U dapat dihitung Q= M delta H / A

Calculation modes for heat exchanger

Exchanger (end point) kalau 0 atau 1

Exchagner (weighted) kalau di antara 0-1 (2 fasa)

Kurva bawah weighted atas end point