Chemical Engineering > GATE 2018 > Heat Transfer Operations
An insulated storage tank contains 1000 kg liquid of specific heat 10 kJ kg−1 K−1.
The liquid is heated by saturated steam, condensing in a helical coil at a temperature of 180 °C.
The heat transfer area of the coil is 0.1 m2.
If the overall heat transfer coefficient is constant at 1000 W m−2 K−1, then the time (in hours) required to raise the temperature of the liquid in the tank from 20 °C to 80 °C is ____________ (rounded off to second decimal place).
The liquid is heated by saturated steam, condensing in a helical coil at a temperature of 180 °C.
The heat transfer area of the coil is 0.1 m2.
If the overall heat transfer coefficient is constant at 1000 W m−2 K−1, then the time (in hours) required to raise the temperature of the liquid in the tank from 20 °C to 80 °C is ____________ (rounded off to second decimal place).
Explanation
Correct : 13.00
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