共查询到19条相似文献,搜索用时 546 毫秒
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叙述了利用高效热风换热器,将矸石砖厂排烟、排潮回风中蕴含的热能交换到循环水中,实现为热泵系统提供稳定的低温热源,替代传统的燃煤锅炉,为冬季采暖、井筒防冻及洗浴提供热水的节能改造情况,提出,热泵系统联合排烟热能回收系统的研究思路、设计方案. 相似文献
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热泵技术是近年来在全世界备受关注的新能源技术。随着水源热泵技术的日趋成熟和发展,低温能源日益受到人们的重视。炼油污水温度常年稳定在30~40℃,污水中蕴藏着大量的热能,是可回收和利用的清洁能源。系统阐述了某炼油污水处理车间的炼油污水热能回收项目,采用热泵技术,通过能量传递,将炼油污水回用水中的废热转换为供暖系统中的热源,代替蒸汽供暖。包括热负荷参数的核算、热能回收工艺的设计及供暖系统的改造设计等内容。项目实施后,取得了良好的经济效益和环境效益,该车间及其两个外供单位的冬季供暖全部由污水源热泵系统提供,车间实际供暖效果良好,供暖期室内实际温度可达18~23℃,节约蒸汽3656t。扣除热泵机组的电能增加因素,每年可节约运营费用49.11万元。本项目的成功实施,为炼油污水废热能源的回收利用提供了新途径,具有节能减排示范作用和较高的推广价值。 相似文献
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热泵热水器借助外部能量能把不能直接利用的低位热源转换为可以利用的高位热能,从而达到节约部分高位能的目的。阐述了热泵热水器的发展历史与应用现状,分析了空气源热泵的工作原理和节能原理,并将空气源热泵热水机组与电热水器、燃油热水锅炉、燃气热水锅炉等热水供应系统的性能进行了比较。在此基础上,结合企业工程应用实例,指出了推广热泵技术对于节能减排的意义。 相似文献
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风冷热泵机组在南京地区运行性能的测定与分析 总被引:3,自引:0,他引:3
分析了风冷热泵机组在南京地区冬季运行的实测数据,对风冷热泵机组在南京地区的使用情况进行了综合分析,得出了在南京地区风冷热泵使用情况较好的结论。 相似文献
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Manuel S. V. Almeida Mrcio C. Gouveia Suzana R. Zdebsky Jos Alberto R. Parise 《国际能源研究杂志》1990,14(4):397-406
The paper describes a simulation model developed to predict the performance of drying systems assisted by vapour-compression heat pumps. The heat is used to preheat the air stream before it enters the drying chamber. Energy consumption is thus reduced, as the heat pump is capable of delivering more energy as heat than it in fact consumes as input work. Ambient air provides the heat source. A computer program, based on simplified modelling of components (compressor, heat exchangers and drying chamber) has been developed. Results have been produced for a typical application, revealing that a considerable reduction in energy consumption can be obtained with the use of a heat pump. The effect of air flow rate on system performance is also studied. 相似文献
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随着人民生活水平的不断提高,节能技术越来越重要,建筑业在空调系统与供热系统方面的节能环保亦是如此。叙述了地源热泵技术的特点及工作原理,详细介绍了在暖通工程中地源热泵技术的应用,以供同行参考。 相似文献
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本文介绍了风源热泵技术在冀中能源峰峰集团薛村矿的应用,改造后年节约1 900 t标煤,减排二氧化碳10000 t,是一项即节能又环保的工程项目。 相似文献
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For the shortcoming of air source heat pump in heating condition, a composite heat exchanger was designed which integrates fin tube and tube heat exchanger, and it can achieve synchronous and composite heat exchange in one heat exchanger between working fluids, gaseous and liquid heat source. With the above composite heat exchanger as the core component, the Solar Air Composite Heat Source Heat Pump System (SACHP) was developed which has three working modes, including single solar heat source mode, single air heat source mode and solar air dual heat sources mode. A SACHP experiment table was established and conducted a comprehensive experimental study of three working modes of this system in the standard enthalpy difference laboratory. The results show that when the ambient temperature was −15 °C, compared to the single air heat source mode, the dual heat source mode increased 62% in heat capacity and 59% in COP; when the temperature difference of combined heat transfer was 5 °C, compared to the single air heat source mode, the dual heat source mode increased 51% in heat capacity and 49% in COP. Experimental results demonstrate that the application of the solar air composite heat pump technology can accelerate the application process of the solar heat pump in air conditioners for buildings. 相似文献
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The addition of a heat pump to a conventional hot air drying system can enhance the efficiency of drying. To investigate the performance of heat pump assisted continuous drying system a detailed simulation model has been developed. The system modelled consists of a vapour compression heat pump coupled to a continuous cross-flow dryer. The model takes account of detailed heat and mass transfer phenomena taking place in each component of the system and can be used to investigate many different system configurations. 相似文献
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利用生命周期评价方法(LCA)对土壤源热泵与空气源热泵在节能和CO2减排效益方面进行研究比较,考察了土壤源热泵相对于空气源热泵的能耗回收期(EPT)和CO2回收期(CPT)两个指标,结果表明,整个生命周期内土壤源热泵较空气源热泵节能91829.64t标准煤,CO2减排262.5t,相对能耗回收期为2.87a,CO2回收期为0.89 a。 相似文献
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基于流态冰的冰源热泵可以利用近冰点淡水或海水相变潜热作为热源,具有采暖能效高、适用性广的特点。为研究新型冰源热泵在采暖期的能效及经济性,选取我国典型供暖区域的5个城市作为研究对象,结合近5年采暖期各城市的气象参数,分别模拟计算空气源热泵、冰源热泵、地源热泵的系统能效。通过计算各热泵机组的初投资及采暖期运行费用,确定了不同类型热泵系统的静态投资回收期。结果表明,本文提出的新型冰源热泵在采暖期的系统能效较高,为2.8 ~ 3.2。相较于空气源热泵和地源热泵,哈尔滨地区冰源热泵系统的初投资及运行费用最低,不存在静态投资回收期。在北京、郑州、武汉、南京地区的静态投资回收期分别为3.0年、5.1年、2.3年、2.6年。基于流态冰的冰源热泵在冬季供暖方面有很好的应用前景。 相似文献