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     EduGorilla 
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    Oil at 120°C is used to heat water at 30°C in a 1-1 cocurrent shell and tube heat exchanger. The available heat exchange area is S1. The exit temperatures of the oil and the water streams are 90°C and 60°C respectively. The cocurrent heat exchanger is replaced by a 1-1 countercurrent heat exchanger having heat exchange area S2. If the exit temperatures and the overall heat transfer coefficients are the same, the ratio of S1 to S2 is

    Options :-

    1. infinite
    2. 1.1
    3. 0.91
    4. zero
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Reply To: Oil at 120°C is used to heat water at 30°C in a 1-1 cocurrent shell and tube heat exchanger. The a….
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