Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because Heat transfer co-efficient are high There is no risk of contamination There is no mist formation Cost of equipment is lower Heat transfer co-efficient are high There is no risk of contamination There is no mist formation Cost of equipment is lower 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 45 37 50 32 45 37 50 32 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Transient conduction Steady state conduction Forced convection Natural convection Transient conduction Steady state conduction Forced convection Natural convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A graph between __________ is called Wilson plot. 1/U Vs . 1/v0.8 1/v0.8 Vs . U V0.8 Vs . U 1/U Vs . 1/V 1/U Vs . 1/v0.8 1/v0.8 Vs . U V0.8 Vs . U 1/U Vs . 1/V ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer (Cp . μ)/K is termed as the __________ number. Grashoff Stanton Nusselt Prandtl Grashoff Stanton Nusselt Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator is not influenced much by the boiling point elevations temperature of the feed ratio of the weight of the thin liquor to thick liquor rate of heat transfer boiling point elevations temperature of the feed ratio of the weight of the thin liquor to thick liquor rate of heat transfer ANSWER DOWNLOAD EXAMIANS APP
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