共查询到19条相似文献,搜索用时 296 毫秒
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以泰兴市新能源6#地块为例,介绍该建筑地源热泵空调系统的应用情况,分析可再生能源应用的节能量,计算得出地源热泵空调系统的增量成本和投资回收期,为今后可再生能源建筑的应用提供借鉴和参考。 相似文献
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地源热泵技术作为一种可再生能源技术,目前已大量应用于建筑节能领域。作为一种引进技术,近年来在我国大力发展可再生能源建筑应用的政策背景下已被广泛推广应用。从本期开始,本刊将刊登中国可再生能源学会地源热泵专委会主任李元普关于地源热泵系统技术流派与应用系列文章,供业界学习与交流,更好的推广应用地源热泵技术,促进这项技术的健康发展。 相似文献
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讨论了促进地源热泵发展的管理模式及其应用与设计要注意的几个原则,介绍了地源热泵系统在湖北武汉地区的工程应用及工程实例,对其在该地区未规模化推广应用的原因进行了分析,最后提出了地源热泵系统健康发展的建议:全面进行地源热泵可靠性理论及其工程应用研究;提高地源热泵技术节能环保的认识度。 相似文献
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A ground source heat pump (GSHP) system was designed and constructed in Minhang archives of Shanghai. As a demonstration project, it is the first archives to use a GSHP system in China. The system consists of two heat pumps with the rated cooling capacity of 500 kW for each and 280 boreholes with 80 m in depth. In the cooling mode, the heat extraction from the condenser of the heat pump was divided: part of it was rejected to the soil while the rest was used to reheat the air in air handling units. The GSHP system has continuously run for nearly two years. It was shown that the indoor thermal environment met the “Archives Design Code” issued by China national archives. Compared with an air source heat pump system which is widely used in archives buildings, the operating cost of the GSHP system is reduced by 55.8% and the payback time is about two years. Owing to its great potential in energy conservation, such kind of GSHP system is testified to be applicable to the air-conditioning systems of the archives buildings. Besides, the applications of GSHP systems corresponding to different climatic zones of China were analyzed. 相似文献
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Xiaobing Liu 《Energy and Buildings》2010,42(5):584-589
With the current movement towards net zero energy buildings, many technologies are promoted with emphasis on their superior energy efficiency. The variable refrigerant flow (VRF) and ground source heat pump (GSHP) systems are probably the most competitive technologies among these. However, there are few studies reporting the energy efficiency of VRF systems compared with GSHP systems. In this article, a preliminary comparison of energy efficiency between the air-source VRF and GSHP systems is presented. The computer simulation results show that GSHP system is more energy efficient than the air-source VRF system for conditioning a small office building in two selected US climates. In general, GSHP system is more energy efficient than the air-source VRV system, especially when the building has significant heating loads. For buildings with less heating loads, the GSHP system could still perform better than the air-source VRF system in terms of energy efficiency, but the resulting energy savings may be marginal. 相似文献
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随着近几年节能减排政策的不断出台,土壤源热泵的应用范围和项目规模不断扩大,但是由于设计、施工及运行中存在的各种原因,一些已经投入使用的土壤源热泵系统工程的节能效果并不如人意。因此,从系统的角度出发,全面分析土壤源热泵系统能效提升中需要把握的几个关键要素,包括:保证低位热源的能量平衡、提高机组自控级别、优化水力输配系统、减少热损失环节、因地制宜按质用能的配置辅助系统、选择适宜的"供冷高温化和供热低温化末端系统装置",以及加强运行监测管理及维护工作。通过这些对这些关键要素的把握,可以改善和提供土壤源热泵的能效情况,具有现实指导价值和意义。 相似文献
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结合我国市场经济的快速发展,分析了目前我国实施工程量清单计价模式中存在的问题,并针对性地提出了实施工程量清单计价模式的建议,以促进工程量清单计价模式在我国的应用。 相似文献
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分析了中国大坝安全管理的三个发展阶段,认为中国大坝安全保障体系正在不断加强,大坝安全管理水平已经有了大幅度提高,风险理念已经在中国得到广泛接受,风险管理技术正在日益受到重视。认为在计划经济体制向市场经济体制逐步过渡中,中国的大坝安全管理还面临着巨大的挑战:如何向市场经济体制模式过渡,政府职能和大坝业主职能如何剥离,如何走上良性循环发展的道路;从管理体制、运行机制和法规建设方面提出了应对挑战的一些战略思考和建议。 相似文献
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对智能建筑能源管理的发展及现状做了详细阐述,对现有的能耗计量方法进行优化,并提出将智能建筑中可再生能源的利用纳入计量系统,以提高可再生能源的应用和管理效率。 相似文献