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     EduGorilla 
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    In a counter-flow heat exchanger, water is heated at the rate of 1.5kg/s from 40 °C to 80 °C by an oil entering at 120 °C and leaving at 60 °C. The specific heats of water and oil are 4.2kJ/kg/K and 2kJ/kg.K respectively. The overall heat transfer coefficient is 400 W/m2.K. The required heat transfer surface area (in m2) is

    Options :-

    1. 0.104
    2. 0.022
    3. 10.4
    4. 21.84
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Reply To: In a counter-flow heat exchanger, water is heated at the rate of 1.5kg/s from 40 °C to 80 °C by an….
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