含瓦斯煤解吸过程热力学特性研究

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运用自行设计的含锗单晶的含瓦斯煤解吸过程红外热像测量实验系统,从工程热力学角度出发对含瓦斯煤解吸过程温度变化进行了理论分析与实验研究.对含瓦斯煤解吸过程进行了热力学与能量耗散规律分析,分析结果表明,含瓦斯煤解吸过程伴随有煤体温度的降低,它是瓦斯气体膨胀吸热与解吸吸热共同作用的结果;在基于煤体瓦斯解吸方程的基础上建立了含瓦斯煤解吸过程温度—解吸量(△T—Qt)模型;根据实验结果对多变指数n进行了实验求解,证明了n是一个多变指数;并在基于实验基础上进行了多变指数的理论计算,根据实验结果及其拟合函数对原有多变指数模型进行了修正,建立了基于多变指数的含瓦斯煤解吸过程温度变化模型.
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