Calculate the surface area required when the cooling flow is 0.4 kgs-1 for both a co-flow and counter flow heat exchanger.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Parallel and counter flow heat exchangers
Exhaust gases flowing through a tubular heat exchanger at the rate of 0.3 kgs-1 are cooled from 400⁰C to 120 ⁰C by water initially at 10⁰C. The specific heat of exhaust gases and water may be taken as 1.13 and 4.19 kJkg-1K-1 respectively, and the overall heat transfer coefficient from gases to water is 140 Wm-2K-1. Calculate the surface area required when the cooling flow is 0.4 kgs-1 for both a co-flow and counter flow heat exchanger.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 24 images
