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Ram Sharma • 193.88K Points
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Q. 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m2 and the overall heat transfer co-efficient to the liquid is 1500 W/m2.°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be

  • (A) 15 min
  • (B) 22 min
  • (C) 44 min
  • (D) 51 min
  • Correct Answer - Option(D)
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  • Filed under category Heat Transfer
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