Overall heat transfer co-efficient for cooling of hydrocarbons by water is about_________________?
Correct answer: C. 50 -100 BTU/hr. ft.2°F
- A. 50 -100 Kcal/hr.m2.°C
- B. 50 -100 W/m2.°K
- C. 50 -100 BTU/hr. ft.2°F
- D. 1000 - 1500 BTU/hr. ft.2°F
Explanation
Cooling hydrocarbons with water commonly gives an overall coefficient of roughly 50–100 Btu/(h·ft²·°F), because the hydrocarbon-side resistance is relatively large. The kcal and watt ranges listed are much lower than this usual estimate.
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