Cooling water fouling factors vary in the range of 0.001 to 0.003____________________?
Correct answer: B. (BTU/hr.ft2. °F)-1
- A. (kcal/hr.m2.°C)-1
- B. (BTU/hr.ft2. °F)-1
- C. (W/m2.°K)-1
- D. (kcal/hr. m. °C)-1
Explanation
A cooling-water fouling resistance is commonly about 0.001 to 0.003 hr·ft²·°F/Btu, representing the added resistance caused by deposits on the heat-transfer surface. The other units either use an uncommon conversion or have the wrong area or length basis.
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