Analysis And Design Of 3- Fluid Heat Exchanger For Utilization Of Waste Heat In The Boiler

Mechanical Engineering

Our project relates to recover the waste of flue gases heat in boiler and utilize it in pre-heat the boiler feed water and air before they apply to the economizer & air-preheater. The heat which is going to waste from the exhaust is recover by using the piping system connect to exhaust and from there it is connect to Boiler feed water storage where it increase the temperature Of water, then supply to economizer, so it works effectively. And after way another pipe is connected from exhaust air supply, where it increase temp of air, than this air is supply to combustion chamber and combustion faces place very easily. The project Aims at making 3- fluid heat exchanger. It has following features. 1. Efficiency The efficiency of boiler is increase up to 20% by recover the Waste heat and utilize it in pre –heat feed water and Air. 2. Waste heat utilization The heat which is going waste from exhaust is utilize by piping system connected form exhaust to feed water storage and air-supply

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