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Graetz number is given by__________________?

August 24, 2021March 3, 2019 by admin

Graetz number is given by__________________?

A. mCp/kL
B. kL/mCp
C. mCp/kμ
D. kμ/mCp

Categories Chemical Heat Transfer

Reynold’s analogy states that_________________?

Hot water (0.01 m3 /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m3/min) of density 800 kg/m3 and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately ?

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