We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat p...We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat plan can provide over 15,000 m2 of building air-conditioning/heating load for each kilo- meter of roadway, but electric power is needed to run the system. Numerical research proved that the accumulation of hot water in the roadway for seasonal heating purposes （a temperature swing from 90 to 54 ℃） is a viable possibility. The CAES plan proposes using the discarded coal mine tunnel as a pea ing power station with an energy storage density over 7000 kj/m3. It can be concluded that presently abandoned coal mines could be reformed into future energy centers for a city.展开更多
本文以Web of Science(WOS)中与传统村落相关的文献作为数据来源,使用CiteSpace对文献中的高频词汇、高被引词汇的中心性及热点论文等进行可视化分析,掌握英文文献中传统村落的研究热点及发展趋势,为国内外传统村落的研究提供参考。研...本文以Web of Science(WOS)中与传统村落相关的文献作为数据来源,使用CiteSpace对文献中的高频词汇、高被引词汇的中心性及热点论文等进行可视化分析,掌握英文文献中传统村落的研究热点及发展趋势,为国内外传统村落的研究提供参考。研究结果显示:(1)WOS中的热点关键词大多出现于2008—2013年。(2)法国、德国、英国等欧洲国家发文的国际影响力较大,美国和中国的被引率最高。(3)研究价值最高的论文内容主要集中在生态及资源环境保护方面,其次是土地利用及村民参与方面。展开更多
基金supported financially by the National Natural Science Foundation of China (No. 50908225)
文摘We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat plan can provide over 15,000 m2 of building air-conditioning/heating load for each kilo- meter of roadway, but electric power is needed to run the system. Numerical research proved that the accumulation of hot water in the roadway for seasonal heating purposes （a temperature swing from 90 to 54 ℃） is a viable possibility. The CAES plan proposes using the discarded coal mine tunnel as a pea ing power station with an energy storage density over 7000 kj/m3. It can be concluded that presently abandoned coal mines could be reformed into future energy centers for a city.
文摘本文以Web of Science(WOS)中与传统村落相关的文献作为数据来源,使用CiteSpace对文献中的高频词汇、高被引词汇的中心性及热点论文等进行可视化分析,掌握英文文献中传统村落的研究热点及发展趋势,为国内外传统村落的研究提供参考。研究结果显示:(1)WOS中的热点关键词大多出现于2008—2013年。(2)法国、德国、英国等欧洲国家发文的国际影响力较大,美国和中国的被引率最高。(3)研究价值最高的论文内容主要集中在生态及资源环境保护方面,其次是土地利用及村民参与方面。
