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Heat Exchange Analysis of HEMS Cooling System in Jiahe Deep Mine

Author: QiPing
Tutor: HeManChao
School: Beijing
Course: Geotechnical Engineering
Keywords: HEMS reverse Carnot cycle key equipment heat exchange principle numerical simulation
CLC: TD727
Type: PhD thesis
Year: 2011
Downloads: 73
Quote: 0
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Abstract


At present, the deep mine cooling is becoming more and more important because of more seriously heat hazard day by day. Based on the research of all cooling technologies in both China and abroad professor He Manchao proposed the HEMS cooling technology, and it is applied in Jiahe coal mine successfully. Based on this research platform, I analyzed the reverse Carnot cycle of Jiahe HEMS cooling system, the working principle of key equipments and the key parameters of HEMS are also analyzed. Based on the research above, the paper elaborates the design process of Jiahe HEMS deep mine cooling system. After the project is constructed, we monitored the running parameters and analyzed cold energy loss during the heat exchange, and we get the results that the heat preservation of pipe line is the key to reduce cold energy loss. At the same time, I analyzed the energy loss of ice cooling system, through the comparison of the two technology, we know that the HEMS is the low energy loss system. The key for the cooling system is to decrease the working face temperature, so we should analyze the cooling effect. First, I analyzed the heat and humidity exchange in the roadway, then FLUENT is adopted to simulate the heat exchange process in HEMS-II and in roadway, then we get simulation results. Compared with the real time monitoring data, the correctness of the simulation results is verified, which offered basis for future design and air temperature prediction.

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CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine ventilation > Climatic conditions within the mine and regulation
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