回热式发动机利用多孔介质回热器在气缸中的往复运动,实现气固之间的热交换,促进均匀混合气的形成,从而实现均质和稳定的燃烧.本文利用改进的KIVA-3V程序对Ferrenberg所提出的回热式发动机模型进行了二维数值模拟.发动机以甲烷为燃料,采用了详细的反应机理.通过数值计算讨论了两个主要的工况参数,孔隙率和燃料喷射量对发动机燃烧温度的影响.计算模拟表明,多孔介质的孔隙率越大,甲烷的喷射量越多,气缸内的高温区域也最大.
参考文献
| [1] | F. Durst;M. Weclas .A new type of internal combustion engine based on the porous-medium combustion technique[J].Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering,2001(D1):63-81. |
| [2] | Ferrenberg A J .The Single Cylinder Regenerated Internal Combustion Engine[SAE Paper No.900911][R].,1990. |
| [3] | Younis L B;Viskanta R .Experimental Determination of the Volumetric Heat Transfer Coefficient Between Stream of Air and Ceramic Foam[J].International Journal of Heat and Mass Transfer,1993,6(06):1425-1434. |
| [4] | Henneke Michael R.;Ellzey Janet L. .Modeling of filtration combustion in a packed bed[J].Combustion and Flame,1999(4):832-840. |
| [5] | Ergun S .Fluid Flow through Packed Columns[J].Chemical Engineering Progress,1952,48(02):89-94. |
| [6] | Fu X;Viskanta R et al.Measurement and Correlation of Volumetric Heat Transfer Coefficients of Cellular Ceramics[J].Experimental Thermal and Fluid Science,1998,17(04):285-293. |
| [7] | 吕兆华.泡沫型多孔介质等效导热系数的计算[J].南京理工大学学报,2001(03):257-261. |
| [8] | George Papageorgakis;Dennis N.Assanis .Optimizing Gaseous Fuel-Air Mixing in Direct Injection Engines Using an RNG Based k-e Model[SAE,Paper No.980135][R].,1998. |
| [9] | Chan-woo Park;Massoud Kaviany .Evaporation-Combustion Affected by In-Cylinder, Reciprocating Porous Regenerator[J].Journal of heat transfer: Transactions of the ASME,2002(1):184-194. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%