Steam is to be condensed in a shell and tube heat exchanger, 5 m long with a shell diameter of 1 m. Cooling water is to be used for removing the heat. Heat transfer co-efficient for the cooling water, whether on shell side or tube side is the same. The best arrangement is_____________?
Correct answer: B. Vertical heat exchanger with steam on shell side
- A. Vertical heat exchanger with steam on tube side
- B. Vertical heat exchanger with steam on shell side
- C. Horizontal heat exchanger with steam on tube side
- D. Horizontal heat exchanger with steam on shell side
Explanation
Placing steam on the shell side allows condensation over the outside of the tubes, while cooling water flows inside them. A vertical arrangement promotes downward drainage of condensate and reduces liquid hold-up, making option b the standard preferred arrangement.
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