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论文类型：期刊论文

发表时间：2009-10-01

发表刊物：APPLIED THERMAL ENGINEERING

收录刊物：SCIE、EI、Scopus

卷号：29

期号：14-15

页面范围：3189-3197

ISSN号：1359-4311

关键字：Porous medium (PM) engine; Two-zone model; Numerical simulation

摘要：Porous medium (PM) engine was a new type engine based on the technique of combustion in porous medium, which can realize homogeneous and stable combustion. In this paper, the combustion and working processes of a specific PM engine were simulated by a two-zone model considering the influences of the mass distribution, heat transfer from the cylinder wall, mass exchange between zones and the heat transfer in porous medium. Influences of operating parameters, e.g. intake temperature and pressure, compression ratio, the excess air ratio on the performance of the PIA engine were discussed. It was found out that the porous medium, acting as a heat recuperator, can significantly enhance the evaporation of liquid fuel and preheat the mixture, which promotes the ignition and combustion in the cylinder: and that the initial PM temperature and the compression ratio are critical factors controlling the compression ignition of the mixture. (C) 2009 Elsevier Ltd. All rights reserved.