Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?
Correct answer: A. None of these
- A. None of these
- B. Diameter & length of the pipe
- C. Temperature of hot pipe surface & that of air in the room
- D. Emissivity of pipe surface
Explanation
Radiation and natural-convection heat loss depend on surface emissivity, pipe geometry, and the temperature difference between the pipe and room surroundings. Since all three listed factors matter, none of them is excluded.
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