Exit temperature of hot & cold fluid in parallel flow heat exchanger - Heat Transfer

Q.  In parallel flow heat exchangers,
- Published on 12 Aug 15

a. the exit temperature of hot fluid is always equal to the exit temperature of cold fluid
b. the exit temperature of hot fluid is always less than the exit temperature of cold fluid
c. the exit temperature of hot fluid is always more than the exit temperature of cold fluid
d. we cannot predict comparison between exit temperatures of hot fluid and cold fluid

ANSWER: the exit temperature of hot fluid is always more than the exit temperature of cold fluid

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