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_____________________?

Related Mcqs:

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is______________?

A. Nu = 0.023 Re0.8. Pr0.4 B. Nu = (π/2) Gz C. Nu = (2/π) Gz D. Nu = 2Gz0.5...

jH factor for heat transfer depends upon the ____________ number?

A. Biot B. Nusselt C. Reynolds D. Prandtl...

LMTD for evaporators & condensers for a given terminal parameters & set of conditions for counter-flow is equal to that for parallel flow. In such heat exchangers, with one of the fluids condensing or evaporating, the surface area required is the least in the ______________ flow?

A. Parallel B. Mixed C. Counter flow D. Same in either A , B. or C....

With increase in temperature, the thermal conductivity of a gas ___________________?

A. Increases B. Decreases C. Remain same D. May increase or decrease depending on the type of gas...

During crystallisation, formation of crystal can occur in ______________ solution only?

A. Saturated B. Supersaturated C. Under-saturated D. All A., B. and C....