Effects of PM fouling on the heat exchange effectiveness of wave fin type EGR cooler for diesel engine use

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• 作者：Sang-Hoon Jang (1)
  Se-Joon Hwang (1)
  Sang-Ki Park (2)
  Kap-Seung Choi (1)
  Hyung-Man Kim (1) mechkhm@inje.ac.kr
• 刊名：Heat and Mass Transfer
• 出版年：2012
• 出版时间：June 2012
• 年：2012
• 卷：48
• 期：6
• 页码：1081-1087
• 全文大小：574.3 KB
• 参考文献：1. Heywood JB (1988) Internal combustion engine fundamentals, 1st edn. McGraw-Hill, New York
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• 作者单位：1. Department of Mechanical Engineering and High Safety Vehicle Core Technology Research Center, INJE University, 607 Eobang-Dong, Gimhae-si, Gyeongnam-do 621-749, Korea2. Graduate School of Mechanical Engineering, Hanyang University, 1271 Sa1-Dong, Ansan, Gyeonggido 426-791, Korea
• 刊物类别：Engineering
• 刊物主题：Engineering Thermodynamics and Transport Phenomena
  Industrial Chemistry and Chemical Engineering
  Thermodynamics
  Physics and Applied Physics in Engineering
  Theoretical and Applied Mechanics
  Engineering Fluid Dynamics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1181

文摘

Developing an effective method of reducing nitrogen oxide emissions is an important goal in diesel engine research. The use of cooled exhaust gas recirculation has been considered one of the most effective techniques of reducing nitrogen oxide. However, since the combustion characteristics in a diesel engine involves high temperature and load, the amount of particulate matter emission tends to increase, and there is a trade-off between the amount of nitrogen oxide and particulate matter emissions. In the present study, engine dynamometer experiments are performed to investigate the effects of particulate matter fouling on the heat exchange characteristics of wave fin type exhaust gas recirculation coolers that have four cases of two wave pitch and three fin pitch lengths. To optimize the fin and wave pitches of the EGR cooler, the exhaust gas temperature, pressure drop and heat exchange effectiveness are compared. The experimental results show that the exhaust gas recirculation cooler with a fin pitch of 3.6 mm and a wave pitch of 8.8 mm exhibits better heat exchange characteristics and smaller particulate matter fouling effect than the other coolers.