For turbulent flow in a tube, the heat transfer coefficient is obtained by using following
empirical equation.
Nu = 0.023 Reº. Pr”
Here, n is 0.4 for heating and 0.3 for cooling.
If the diameter is doubled and the flow rate is halved, then the heat transfer coefficient will
changed by a factor of
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For turbulent flow in a tube, the heat transfer coefficient is obtained by using following empirical equation. Nu =0.023 RePrº Here, n is 0.4 for heating and 0.3 for cooling. If the diameter is doubled and the flow rate is halved, then the heat transfer coefficient will changed by a factor of a) 0.41 b) 0.41 c) 0.61 d) 0.16 Answer ОА OB oc
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