Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 6 (Q.No. 3)
In a shell and tube heat exchanger, baffles are provided on the shell side to
improve heat transfer
provide support for tubes
prevent stagnation of shell side fluid
all of these
Answer: Option
No answer description is available. Let's discuss.
3 comments Page 1 of 1.

Krishna said:   9 years ago
Why would you have stagnation of shell fluid - It is counter productive for heat transfer- hence C is not correct.

Baffles do not help in improving heat transfer - It actually reduces by restricting movement of fluid hence A is not correct. Hence B is correct answer in this scenario.

Saikumar said:   4 years ago
The functions of baffles are;

1) to create the turbulence by changing the direction of flow.
2) to support the tube.

Om nagar said:   7 years ago
And D is right, baffles improving heat transfer due to turbulent flow.

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