Question

A 1-2 shell-and-tube heat exchanger has dimensions and fluid properties given below: For a successful heat exchanger design, the following criteria must be met:

Answer 1

Heat Exchanger Design Criteria: material properties, efficiency, reservoir temperatures

Step-by-step explanation:

For a successful heat exchanger design, the following criteria must be met:

1. The heat transfer rate depends on the material properties described by the coefficient of thermal conductivity.
2. The greatest efficiencies are obtained when the ratio Te/Th is as small as possible, meaning that efficiency is greatest for the highest possible temperature of the hot reservoir and lowest possible temperature of the cold reservoir.
3. The actual reservoir temperatures of a heat engine are usually related to the type of heat source and the temperature of the environment into which heat transfer occurs.