For identical situation, condensing film coefficient in case of a horizontal condenser is almost ______________ the value expected in case of vertical condenser?
Correct answer: C. Thrice
- A. Half
- B. Twice
- C. Thrice
- D. Five times
Explanation
For comparable conditions, condensate drains more effectively from a horizontal tube surface and the condensation coefficient is commonly estimated as about three times that for a vertical surface. The exact ratio depends on geometry and condensate flow regime, but three times is the standard design correlation choice here.
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