Heat Transfer 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 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f f/4 f/2 2f f f/4 f/2 2f ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by Eddies current None of these Conduction Convection Eddies current None of these Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 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 37 50 32 45 37 50 32 45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall heat transfer co-efficient for cooling of hydrocarbons by water is about 50 -100 BTU/hr. ft.2°F 1000 - 1500 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 50 -100 W/m² . °K 50 -100 BTU/hr. ft.2°F 1000 - 1500 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 50 -100 W/m² . °K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Stefan-Boltzman constant Heat transfer co-efficient Thermal conductivity Thermal diffusivity Stefan-Boltzman constant Heat transfer co-efficient Thermal conductivity Thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
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