【摘要】 在常规地下煤炭气化数值模型的基础上,根据煤炭传热性质,建立了煤炭地下气化调控的数学模型,并应用控制容积法编制了数值模拟程序。对地下煤炭调控气化的地下温度场进行了模拟,得出了如下一些比较有价值的结论:地下煤炭调控气化通道温度曲线是双峰曲线,随着调控钻孔与进气孔距离的增加,两个燃烧区结合部的温度也是先升高再降低。调控钻孔与进气孔的距离为 45m时,地下煤炭气化效率最高。更多还原

【Abstract】 On the basis of normal numerical model of underground coal-gasification and the heat-transfer character of coal, the mathematic model of underground adjusted coal-gasification is set up. At the same time, the program of numerical simulation is composed on the basis of the adjusted volumetric method. Underground adjusted temperature field of coal gasification is simulated. At last, some valuable conclusions are gotten.:the temperature distribution in underground adjusted gasifying passage is a two-peak curve. With the distance between the adjusted hole and the input hole increasing, the temperature in joining area of two burning areas goes up first and then goes down. When the distance between the adjusted hole and the input hole is 45m, the highest gasification efficient is gotten.更多还原