For Turbulent Flow in a Tube, the Heat Transfer Co-Efficient

question 39

Multiple Choice

For turbulent flow in a tube, the heat transfer co-efficient is obtained from the DittusBoelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of

• A)1
• B)1.74
• C)6.1
• D)37

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