Using the relationship shown on Fig. 2-6 for heat transfer when a fluid flows inside a tube, what is the percentage increase or decrease in the convection heat-transfer coefficient hc if the viscosity of the fluid is decreased 10 percent? Ans. 4.3% increase

Elements Of Electromagnetics
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CONVECTION
10
Nu - 0.023 Re*Pr
10
Figure 2-6 Typical data
correlation for forced
convection in smooth tubes,
10
10
turbulent flow.
10
10
10
Reynolds number
Transcribed Image Text:CONVECTION 10 Nu - 0.023 Re*Pr 10 Figure 2-6 Typical data correlation for forced convection in smooth tubes, 10 10 turbulent flow. 10 10 10 Reynolds number
Using the relationship shown on Fig. 2-6 for heat transfer when a fluid
flows inside a tube, what is the percentage increase or decrease in the
convection heat-transfer coefficient hc if the viscosity of the fluid is
decreased 10 percent? Ans. 4.3% increase
Transcribed Image Text:Using the relationship shown on Fig. 2-6 for heat transfer when a fluid flows inside a tube, what is the percentage increase or decrease in the convection heat-transfer coefficient hc if the viscosity of the fluid is decreased 10 percent? Ans. 4.3% increase
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