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井下局部降温技术的实践应用 被引量:1
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作者 吴晋怀 《陕西煤炭》 2020年第3期178-180,153,共4页
同煤集团某矿二号井开采至埋深740 m位置,出现了明显地下热害现象,必须采取降温措施逐步解决。在详细分析地下热害现状及主要原因的基础上,通过井下降温冷负荷计算,确定了直冷式局部降温制冷装置来控制采掘工作面局部高温的降温方案,并... 同煤集团某矿二号井开采至埋深740 m位置,出现了明显地下热害现象,必须采取降温措施逐步解决。在详细分析地下热害现状及主要原因的基础上,通过井下降温冷负荷计算,确定了直冷式局部降温制冷装置来控制采掘工作面局部高温的降温方案,并开展设备选型和具体布置。020602综采工作面的局部制冷装置设置完成后,通过对工作面内部各处设置的温、湿度传感器的反馈数据进行汇总,发现该技术方案改善了工作面内部湿热的工作环境,可以起到良好的降温效果,为井下作业人员创造了良好的作业条件。 展开更多
关键词 地下热害 局部降温 冷负荷 治理
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UTES (Underground Thermal Energy Storage)---Applications and Market Development in Sweden
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作者 Olof Andersson Jonas Ekkestubbe Anna Ekdahl 《Journal of Energy and Power Engineering》 2013年第4期669-678,共10页
The market for shallow geothermal solutions has been continuously growing in Sweden and is recognized as a cost effective and environmental sound way for space heating. In later years, UTES (underground thermal energ... The market for shallow geothermal solutions has been continuously growing in Sweden and is recognized as a cost effective and environmental sound way for space heating. In later years, UTES (underground thermal energy storage) systems have become fTequently installed for combined heating and cooling of commercial and institutional buildings. After 20 years, operational experiences of these systems are proved to be energy efficient, technically safe and profitable. In this paper, the current statistics of UTES applications are given as well as market trends and technical development. The goal is to encourage designers and installers in other counties to use this promising technology. 展开更多
关键词 Shallow geothermal energy storage ground source heat pumps underground thermal energy storage.
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