A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to-A-d0.8B-d 0.2C-d 1D-d 1.8-B-d 0.2

Question

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter &#39;d&#39;. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to-A-d0.8B-d 0.2C-d 1D-d 1.8-B-d 0.2

APTITUDE CRACK · Accepted Answer

B d 0.2 For turbulent flow conditions in the tube side of a double pipe heat exchanger, the tube side heat transfer coefficient (ht​) is proportional to a power of the tube diameter (�d). This relationship is expressed by the Dittus Boelter equation for turbulent flow: .2ht​&prop;d&minus;0.2 Therefore, the correct option is: d&minus;0.2

Heat Transfer

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to

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Heat Transfer

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to

Solution

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