魏民祥

个人信息Personal Information

教授 博士生导师

招生学科专业:
机械工程 -- 【招收博士、硕士研究生】 -- 能源与动力学院
动力工程及工程热物理 -- 【招收博士、硕士研究生】 -- 能源与动力学院
机械 -- 【招收博士、硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收博士、硕士研究生】 -- 能源与动力学院

性别:男

毕业院校:西安交通大学

学历:西安交通大学

学位:工学博士学位

所在单位:能源与动力学院

办公地点:A10-522

联系方式:wmxnuaa@126.com

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Partial load tests on a two-stroke spark ignition direct injection heavy fuel engine

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所属单位:能源与动力学院

发表刊物:Hangkong Dongli Xuebao

摘要:The partial load tests at the engine speed of 3000r/min and 10%, 20% throttle open positions were carried out on a two-stroke spark ignition diesel-fuelled engine with air-assisted direct injection, and the effects of ignition and injection parameters on the engine performance were investigated. The tests results indicated that, at the small throttle open position, applying the strategies of the ignition timing at 30°-40° crank angle before top dead center, the saturated ignition energy, the partial lean mixture (excess-air-ratio above 1.1) and the suitable injection timing can fully improve the engine power output and fuel economy. With the increase of engine load, the effects of the ignition energy reduced. Applying the strategies of the moderate delayed ignition timing, the partial rich mixture (excess-air-ratio below 1.0) and advancing the end of injection timing to increase the fuel evaporation time resulted in a remarkable engine power output. Furthermore, the fuel economy and HC/CO emissions of the engine improved greatly by the use of the saturated ignition energy and the partial lean mixture (excess-air-ratio above 1.15). © 2017, Editorial Department of Journal of Aerospace Power. All right reserved.

ISSN号:1000-8055

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发表时间:2017-12-01

合写作者:Liu, Rui,杨海青,Bei, Taixue,Ji, Haocheng,F70206529

通讯作者:魏民祥