Step1: Calculate the LMTD (the log mean temperature difference)
Step2: Calculate NTUHOT and NTUCOLD ( numberr of trnsfer unit for the hot and cold stream)
Step3: Read hHot (local Heat Transfer Coefficient for the hot stream) c from0.25 < NTU <2.0 chart for the1st fluid
Step4: Read hCold (local Heat Transfer Coefficient for the cold stream)from0.25 < NTU <2.0 chart for the2nd fluid
Step5: Calculate the Overall Heat Transfer Coefficient (OHTC)
