Title: Comparison of EGR ratios determined by four different methods for electronic re-circulation gate control

Authors: Muammer Ozkan, Tarkan Sandalci, Derya B. Ozkan

Addresses: Mechanical Engineering Department, Yildiz Technical University, IC Engines Laboratory, Besiktas 34349, Istanbul, Turkey. ' Mechanical Engineering Department, Yildiz Technical University, IC Engines Laboratory, Besiktas 34349, Istanbul, Turkey. ' Mechanical Engineering Department, Yildiz Technical University, Heat and Thermodynamic Division, Besiktas 34349, Istanbul, Turkey

Abstract: In this study, low pressure systems have been applied for exhaust gas recycling (EGR), which is applied in certain operating conditions. Induction air, exhaust gas flow, amount of exhaust gas added to the induction air, amount of carbon dioxide (CO₂) in the exhaust gas, and amount of carbon dioxide in the induction air mixed with the exhaust gas, have been measured and the EGR ratio has been determined using four different calculation methods. The obtained results have been compared, and it has been noted that all the four methods have given similar results, and the deviation among them has been noted to be 1% at most. Deviations among the results have been explained. In the concluding section, a relation has been formed between the variables chosen as basic parameters, electronic re-circulation gate control, and variables utilised in EGR ratio determination methods.

Keywords: exhaust gas recycling; EGR; diesel engine; nitrogen oxide; air pollution; low pressure; exhaust emissions; electronic recirculation gate control.

DOI: 10.1504/IJEP.2005.006863

International Journal of Environment and Pollution, 2005 Vol.23 No.2, pp.223 - 231

Published online: 19 Apr 2005 *

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