ISRO Mechanical & Aerospace 2010 - Question 11

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Choose the correct figure representing gas heat transfer in parallel flow heat exchanger?

Figure for question 11, ISRO Mechanical & Aerospace 2010

  • A. Figure (a)
  • B. Figure (b)
  • C. Figure (c)
  • D. Figure (d)

Answer: C. Figure (c)

Explanation: In parallel flow, both fluids enter at the same end. The hot fluid cools down and cold fluid heats up, moving in the same direction, so the temperature difference decreases along the length.

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