calculate the length of the heat exchanger required to achieve the desired heating.
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.
A water-to-water double pipe heat exchanger is required to cool down 4200 kg/h hot process water from 120°C to 80°C. Available for this purpose is 3800 kg/h cold water at 30°C. The inner pipe inside diameter is 2.7 cm while outside diameter of the inner pipe is 3.3 cm. If the overall heat transfer coefficient is 580 W/(m2·K), calculate the length of the heat exchanger required to achieve the desired heating. Use heat capacity of water as 4.2 J/(g·K) for both streams.
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