Performance Analysis And Experimental Investigation On Exhaust Gas Heat Recovery For IC Engines Using Shell And Tube Heat Exchanger

D.S. Vidhyasagar, A.J. Infant Jegan Rakesh, M.Manikandan, S.Sathyanarayanan, M.Sridharan

Increase in energy demand results in shortage of energy. Many effective means were under research to overcome shortage of energy. Recent trend researchers focussing on cogeneration and waste heat recovery in order to improve the efficiency of existing system as well as to avoid energy wastage. In this work waste heat from the exhaust gas is recovered by means of shell and tube heat exchanger to convert cold fluid in to hot fluid. In this system water is used as a working fluid. Water extracts thermal energy to estimate the exhaust heat obtainable from the engine exhaust gases. The exhaust gases which is passed through the tube side of the heat exchanger is obtained from the existing four stroke single cylinder diesel engine whereas water is passed through the shell side of the heat exchanger. The counter flow type heat exchanger arrangement is considered for the analysis. Therefore, the heat transfer characteristics of a system combining compression ignition engine and heat exchanger which recover waste heat from exhaust gas. Performance improvement in this type heat exchanger gives the better usability of low grade heat energy.