Arithmetic mean temperature difference for parallel flow heat exchanger - Heat Transfer

Q.  The arithmetic mean temperature difference for parallel flow heat exchanger is given as
- Published on 12 Aug 15

a. ΔTam = (ΔTi– ΔTe)
b. ΔTam = (ΔTi+ ΔTe)
c. ΔTam = (ΔTi– ΔTe) / 2
d. ΔTam = (ΔTi+ ΔTe) / 2

ANSWER: ΔTam = (ΔTi+ ΔTe) / 2

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