For which fluid combination the value of overall heat transfer coefficient will be least?
A)Alcohol condensers
B)Air to heavy tars
C)Feed water heaters
D)37,500 kg
E)Air condensers

Question

Quizplus · Accepted Answer

The overall heat transfer coefficient is least for the combination of air to heavy tars because both air and heavy tars have relatively low thermal conductivities and high viscosities, leading to poor heat transfer characteristics compared to the other options listed.

For Which Fluid Combination the Value of Overall Heat Transfer