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Use of EGR in Diesel Engine for Investigating the Performance and Emission Characteristics in Diesel Engine


Author : Shaik Khader Basha , Srinivasa Rao. P , K. Venkata Sheshaiah Naidu and Rajagopal K

Pages : 516-519, DOI:http://Dx.Doi.Org/10.14741/Ijcet/Spl.2.2014.97
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Abstract

The main aim of this project is to investigate the effects of hot and cold Exhaust gas recirculation (EGR) methods on emissions and efficiency of the single cylinder, 4-stroke, direct injection diesel engine. For getting different EGR methods heat exchanger is provided. With and without Exhaust gas recirculation the performance characteristics like efficiencies, emissions were studied. In this project the different amounts of EGR like 10%, 15% and 20% of EGR is used to study the effects on the performance characteristics The recirculation of exhaust gas reduces the oxygen quantity in the combustion chamber and increases the temperature of intake charge which reduces the flame temperature and makes to lower NOx formation. By increasing the cooled EGR rates reduces the emissions more effectively. Experimental results shows that the cold EGR is much effective than the hot and intermediate EGR for the reduction of NOx emission. The increase in temperature of EGR gases causes to increase the combustion temperature which leads to increase in formation of NOx.

Keywords: diesel engine, EGR (exhaust gas recirculation), EGR percentage

Article published in International Conference on Advances in Mechanical Sciences 2014, Special Issue-2 (Feb 2014)

 

 

 

 

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