BibTeX:

@article{IJIRSTV1I11097,
     title={Exhaust Gas Waste Heat Recovery And Utilization System In IC Engine},
     author={ALVIN P KOSHY, BIJOY K JOSE, JEFFIN EASO JOHNSON, K NAVANEETH KRISHNAN and BIJEESH P},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={11},
     pages={392--400},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I11097.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Most of the heat energy released from the fuel of an internal combustion engine is wasted to the environment. This is a serious issue in this world of depleting fuels. So an effort is made to recover the heat wasted from the exhaust gas of an internal combustion engine. If the heat wasted out through the exhaust gas is utilised, we can improve the efficiency of the engine to some extent. There are a lot of research works in the field of waste heat recovery systems. Many succeeded in their own methodologies. We hereby attempt to recover the waste heat from the exhaust gas and use the heat energy recovered to improve the efficiency of the internal combustion engine. For the same we studied the exhaust gas temperature of a four stroke diesel engine at various RPM. The exhaust gas temperature at 4000 RPM has got the maximum temperature. So a recovery system for a constant RPM of 4000 is designed. The recovery system consists of a shell and tube heat exchanger and a uniflow steam engine which is coupled to the main engine. The coupled steam engine improves the efficiency of the main engine by lowering the frictional power at the power stroke and idle stroke of the main engine. The initial cost of the system is high due to the additional recovery system. But in the long run the system proves to be profitable.

IC Engine, Exhaust Gas, Efficiency