Experimental study on PM deposition behavior in an EGR cooler
Exhaust Gas Recirculation (EGR) system with EGR coolers is one of the promising ways for NOx reduction in a diesel engine. Since PM and condensable hydrocarbons are contained in the exhaust gas of a diesel engine, they cause PM deposition on the wall in an EGR cooler. To improve performance of EGR c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0365/_pdf/-char/en |
| _version_ | 1797988661119156224 |
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| author | Tomohiko FURUHATA Yutaro ABE Yoshio ZAMA Masataka ARAI |
| author_facet | Tomohiko FURUHATA Yutaro ABE Yoshio ZAMA Masataka ARAI |
| author_sort | Tomohiko FURUHATA |
| collection | DOAJ |
| description | Exhaust Gas Recirculation (EGR) system with EGR coolers is one of the promising ways for NOx reduction in a diesel engine. Since PM and condensable hydrocarbons are contained in the exhaust gas of a diesel engine, they cause PM deposition on the wall in an EGR cooler. To improve performance of EGR cooler, the PM deposits in it should be reduced because the heat transfer performance is deteriorated by the PM deposition. In this study, effect of wall temperature on PM deposition in an experimental EGR cooler was investigated. The wall temperature of the EGR cooler could be controlled by the temperature of cooling water. The exhaust gas from a diesel engine was passed through the EGR cooler. The thickness of PM deposit was measured by a laser displacement sensor. As a result, the thickness of PM deposit increased with an increase of the exhaust gas passed through it, and the thickness did not so depend on the temperature of cooling water. The PM deposit layer in the upstream region of EGR cooler was thicker than that in the downstream region. It was found that PM deposit layers were separated from the wall in the case of lower cooling water temperature. The separation was probably caused by condensation of water in the exhaust gas. |
| first_indexed | 2024-04-11T08:07:42Z |
| format | Article |
| id | doaj.art-0b22e9219fe547ffac59c465635248fb |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:07:42Z |
| publishDate | 2014-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-0b22e9219fe547ffac59c465635248fb2022-12-22T04:35:29ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-12-0180820TEP0365TEP036510.1299/transjsme.2014tep0365transjsmeExperimental study on PM deposition behavior in an EGR coolerTomohiko FURUHATA0Yutaro ABE1Yoshio ZAMA2Masataka ARAI3Division of Mechanical Science and Technology, Gunma UniversityGraduate School of Mechanical Engineering, Gunma UniversityDivision of Mechanical Science and Technology, Gunma UniversityDivision of Mechanical Science and Technology, Gunma UniversityExhaust Gas Recirculation (EGR) system with EGR coolers is one of the promising ways for NOx reduction in a diesel engine. Since PM and condensable hydrocarbons are contained in the exhaust gas of a diesel engine, they cause PM deposition on the wall in an EGR cooler. To improve performance of EGR cooler, the PM deposits in it should be reduced because the heat transfer performance is deteriorated by the PM deposition. In this study, effect of wall temperature on PM deposition in an experimental EGR cooler was investigated. The wall temperature of the EGR cooler could be controlled by the temperature of cooling water. The exhaust gas from a diesel engine was passed through the EGR cooler. The thickness of PM deposit was measured by a laser displacement sensor. As a result, the thickness of PM deposit increased with an increase of the exhaust gas passed through it, and the thickness did not so depend on the temperature of cooling water. The PM deposit layer in the upstream region of EGR cooler was thicker than that in the downstream region. It was found that PM deposit layers were separated from the wall in the case of lower cooling water temperature. The separation was probably caused by condensation of water in the exhaust gas.https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0365/_pdf/-char/endiesel enginecooled egregr coolerpm depositionheat exchangerwater condensation |
| spellingShingle | Tomohiko FURUHATA Yutaro ABE Yoshio ZAMA Masataka ARAI Experimental study on PM deposition behavior in an EGR cooler Nihon Kikai Gakkai ronbunshu diesel engine cooled egr egr cooler pm deposition heat exchanger water condensation |
| title | Experimental study on PM deposition behavior in an EGR cooler |
| title_full | Experimental study on PM deposition behavior in an EGR cooler |
| title_fullStr | Experimental study on PM deposition behavior in an EGR cooler |
| title_full_unstemmed | Experimental study on PM deposition behavior in an EGR cooler |
| title_short | Experimental study on PM deposition behavior in an EGR cooler |
| title_sort | experimental study on pm deposition behavior in an egr cooler |
| topic | diesel engine cooled egr egr cooler pm deposition heat exchanger water condensation |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0365/_pdf/-char/en |
| work_keys_str_mv | AT tomohikofuruhata experimentalstudyonpmdepositionbehaviorinanegrcooler AT yutaroabe experimentalstudyonpmdepositionbehaviorinanegrcooler AT yoshiozama experimentalstudyonpmdepositionbehaviorinanegrcooler AT masatakaarai experimentalstudyonpmdepositionbehaviorinanegrcooler |