摘要
油页岩是一种特殊的固体化石燃料,与煤的热解和 燃烧特性有着很大的区别。该文基于实验研究所确定的油 页岩均相着火机理和油页岩的热解和燃烧特性,建立了油 页岩颗粒的低温段均相燃烧数学模型。在能量方程中耦合 了传导、对流和辐射3种形式的传热以及根据油页岩挥发 分含量大的特点增加了挥发分释放的热解反应热。同时挥 发分的大量释放使得油页岩固体颗粒的密度减少根多,模 型中考虑了挥发分的释放对油页岩固体颗粒质量的影响。 模型的计算结果与实验数据吻合较好。
Oil shale is a special solid fossil fuel. The features of its pyrolysis and combustion are greatly different from that of the conventional coals. Based on the homogeneous ignition mechanism of oil shale and its performance ofpyrolysis and combustion, this paper develops a combustion mathematic model. Conductive, convective and radiative heat transfer between particle and surrounding atmosphere, and pyrolytic heat and also the heat value of volatile of the oil shale are all included in energy equation. Inference of volatile release to particle density of the oil shale has been also considered in the model. At last, a series of experiments has been made to prove the model.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第11期138-140,145,共4页
Proceedings of the CSEE
基金
中国博士后科学基金项目(200028)
吉林省科技发展计划项目(980311)。
关键词
油页岩颗粒
燃烧
数学模型
oil shale
combustion model
combustion
