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Simulation of a Porous Medium (PM) Engine Using a Two-Zone Combustion Model
Technical Paper
2008-01-1516
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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 was 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 PM engine were discussed. It is 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.
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Citation
Liu, H., Xie, M., Chen, S., and Liu, H., "Simulation of a Porous Medium (PM) Engine Using a Two-Zone Combustion Model," SAE Technical Paper 2008-01-1516, 2008, https://doi.org/10.4271/2008-01-1516.Also In
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