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首页> 外文会议>The 6th international conference on mining science amp; technology (ICMST2009) >Thermal economy analysis of utilizing coalmine methane energy
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Thermal economy analysis of utilizing coalmine methane energy

机译：利用煤矿瓦斯能源的热经济性分析

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Coal is the primary energy resource in China, with the raw coal production reaching 2.8 billion tons in 2008. However, great amount of coalmine methane is released during coal exploitation, which runs up to over 3.5 billion cubic meters. To minimize environmental pollution caused by coalmine methane and to promote resource utilization, various systems for utilizing coalmine methane energy are developed in China. Common types of such systems include power generation system utilizing coalmine methane, combined-heat-and-power system of coalmine methane, thermal energy provision system of coalmine methane, and fuel-gas provision system, etc. This paper describes elements, characteristics, and applicability of these systems and presents thermal economy analysis to specific system. Thermal economic indexes, such as exergic efficiency and exergic losses of specific coalmine methane energy utilization system are obtained. These data are very useful in finding the way to make further progress in improving thermal economy of coalmine methane energy utilization systems as well as providing technical support to make tradeoffs among those systems. In addition, the possibility of serving coalmine methane energy utilization systems as distributed energy resource is discussed and potential problems summarized. Generally speaking, these efforts are practical to promote coalmine methane energy utilization in China.
机译：煤炭是中国的主要能源，2008年原煤产量达到28亿吨。但是，煤炭开采过程中会释放出大量的煤矿瓦斯，高达35亿立方米。为了最小化由瓦斯甲烷引起的环境污染并促进资源利用，中国开发了各种利用瓦斯甲烷能量的系统。此类系统的常见类型包括利用煤矿瓦斯的发电系统，煤矿瓦斯的热电联产系统，煤矿瓦斯的热能供应系统以及燃气供应系统等。这些系统的适用性，并提供对特定系统的热经济性分析。获得了具体的煤矿瓦斯能源利用系统的能效和能损等热经济指标。这些数据对于寻找在改善煤矿瓦斯能源利用系统的热经济性方面取得进一步进展以及为这些系统之间进行折衷提供技术支持的方法非常有用。另外，讨论了将煤矿瓦斯能源利用系统作为分布式能源服务的可能性，并总结了潜在的问题。总体而言，这些努力对于促进中国煤矿瓦斯能源的利用是切实可行的。

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