煤地下气化过程覆盖层温度场的数学模拟

Proceedings of the 2014 15th International Carpathian Control Conference (ICCC) Pub Date : 2014-05-28 DOI:10.1109/CARPATHIANCC.2014.6843606

Kostur Karol

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引用次数: 6

摘要

煤地下气化作为一种将世界煤炭资源转化为能源、液体燃料和化学品的有效方法，近年来引起了人们的广泛关注。没有已知的对岩石和地表的负面热影响。为研究UCG覆岩温度场，开发了二维温度模型。数学模型以傅里叶偏方程为基础，通过固液相热交换展开。液相由地下水流表示。该动力学模型可以模拟煤、岩石中的温度场，以及从UCG到地表通过覆盖层的热流(对于理解UCG空腔热量影响下岩石结构的变化是必要的)。

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Mathematical modeling temperature's fields in overburden during underground coal gasification

Underground coal gasification (UCG) appears as an efficient method for the conversion of the world's coal resources into energy, liquid fuels, and chemicals has attracted lots of attention in recent years. There are not known negative thermal impacts on rocks and surface. 2D temperature model is developing for studying temperature's fields in overburden of UCG. Mathematical model is based on Fourier's partial equation but expanded by heat exchange between solid and liquid phase. The liquid phase is represented by underground water flows. The dynamical model will allow simulating temperature fields in coal, rock and heat flows from UCG to surface through overburden (necessary for understanding of changes in the rock structure under the influence heat from UCG cavity).

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Proceedings of the 2014 15th International Carpathian Control Conference (ICCC)

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