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Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 1 (Q.No. 35)
Heat Transfer
35.
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is
finned tube heat exchanger with air inside and steam outside.
finned tube heat exchanger with air outside and steam inside.
shell and tube heat exchanger with air inside tubes and steam on shell side.
shell and tube heat exchanger with air on shell side and steam inside tubes.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.
Bajwa said:   1 decade ago
A finned tube heat ex-changer usually gives 5 to 8 time more heat transfer as compare to other types, we will use air outside the tube bundles and stream inside the tubes because air may also contains some some impurities (solid particles) and it can damaged the tubes in form of clogging, fouling etc.
Saurabh said:   1 decade ago
Why finned tube? Why not shell and tube heat exchange? Please explain the difference.
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