井内换热器和回灌的地热水供热系统

强调了地热水利用中应注意的问题，比较了两种地热水利用方式的优缺点，介绍了使用回灌井和井内换热器的新型地热水供热系统，对解决地热水浪费问题和可持续发展地热供热事业具有现实意义。     

高温热泵供热系统的最佳供热温差

通过对高温热泵系统高低位热源温度特性和热泵循环特性的分析，构造出一个理想的热泵循环。并以此理想循环为基础，以供热系统总能耗最小为目标函数导出跨临界热泵、多级压缩热泵等新型热泵系统的最佳供热温差，为这些热泵在供热系统中的应用提供参数选择的理论基础。     

热泵与锅炉组合的供热系统

自从1973年爆发石油危机以来,有关节能及资源保护方面的研究与开发日益增多。即使在家庭、地区的冷暖气设备或工厂等供热方面也是如此。集中供热系统已作为节能和资源保护的有效手段被各地广泛应用,并日趋普及。     

太阳能热泵供热系统的实验研究

开发新能源和节能是寻求能源出路的两大重要途径，太阳能热泵供热系统以其显著的节能性和环保性具有广阔的发展前景。该文简单介绍了太阳能热泵供热系统实验台及实验台测试系统的建设，着重介绍了太阳能热泵冬季供暖工况的实验研究，考察了系统的整体供热性能及主要设备的工作性能。根据实验研究的结果，提出了有关系统设计方面的参考数据。     

地热水回灌井内换热新技术

当前地热水开采使用中浪费水资源与热能的现象不容忽视。文章介绍使用回灌井和井内换热器的新型地热不供热系统,对解决地热水浪和地热供热事业可持续发展具有现实意义。     

太阳能热泵供热水系统的实验研究

在青岛地区建立一套太阳能热泵实验系统，此系统可以完成冬季太阳能热泵供暖(启动热泵)和非采暖季太阳能直接供热水实验。进行了太阳能热泵冬季供暖的实验研究，测得热泵机组的平均供热系数COP＝2．71。     

水源热泵系统在供热系统中设计案例的应用

以四川省某市实际工程为案例,结合该地区工程应用背景,阐述在该地质条件下,水源热泵系统在该地区供热领域的应用情况.通过分析该模式下的供热系统形式及特点,对比使用该系统与传统供热模式的经济性及环保性,为该系统形式的设计提供参考.     

北京鼓励利用热泵系统供热制冷——选用热泵系统将获补助

日前，北京市发改委等八部门共同研究制定了《关于发展热泵系统的指导意见》（下简称《意见》），鼓励发展热泵系统，以进一步优化能源结构，提高能源利用效率，加强和规范热泵系统的管理。     

热泵与热泵热水系统

热泵技术是近年来在全世界倍受关注的新能源术，目前较多地应用于冷暖空调机。很多人对热这个词很生疏。大家知道，泵是一种能提高位能机械设备，常见的有水泵、油泵、气泵等。水泵要提高水位或增加水压；油泵主要用于供油系统油压设备；气泵主要用于提高空气的压力。人们常使用的打气筒也是一种简单的往复式气泵。这泵都是对接触的物质直接做功。人们一般认为热”不是物质，而是一种能，不可能通过泵来提位能。那么，热泵究竟是个什么概念，又是怎样作的呢？“热”是必须通过载体携带并传递的。载体可是固体，如金属；液体，如水；也可以是…     

地热水高温热泵及风机盘管系统的优化

针对60～85℃地热水的高温热泵及风机盘管供热空调系统,建立系统模型的目标函数;采用MATLAB软件求解出满足约束条件下的各级温度参数以及地热水第一、二级利用的最佳回水温度;从理论上分析了负荷侧供水温度对高温热泵价格和性能系数的影响。     

Thermodynamic analysis of a hybrid geothermal heat pump system

A thermodynamic analysis of a hybrid geothermal heat pump system is carried out. Mass, energy, and exergy balances are applied to the system, which has a cooling tower as a heat rejection unit, and system performance is evaluated in terms of coefficient of performance and exergy efficiency. The heating coefficient of performance for the overall system is found to be 5.34, while the corresponding exergy efficiency is 63.4%. The effect of ambient temperature on the exergy destruction and exergy efficiency is investigated for the system components. The results indicate that the performance of hybrid geothermal heat pump systems is superior to air-source heat pumps.     

桩埋管地源热泵系统及其应用

桩埋管是地源热泵系统新的埋管方式.它与建筑结构相结合,充分地利用了建筑物面积,通过桩基与周围大地形成换热,从而减少了钻孔和埋管费用.文章阐述了桩埋管地源热泵地下换热器的设计和施工中应注意的问题,并结合温州市会所的实际工程作了说明.     

Efficiency of Vertical Geothermal Heat Exchangers in the Ground Source Heat Pump System

Taking the fluid temperature distribution along the borehole depth into account, a new quasi-three-dimensional model for vertical ground heat exchangers has been established, which provides a better understanding of the heat transfer processes in the geothermal heat exchangers. On this basis the efficiency of the borehole has been defined and its analytical expression derived. Comparison with the previous two-dimensional model shows that the quasi-three-dimensional model is more rational and more accurate to depict the practical feature of the conduction of geothermal heat exchanger, and the efficiency notion can be easily used to determine the inlet and outlet temperature of the circulating fluid inside the heat exchanger.     

地源热泵

地源热泵技术是一种利用地下浅层地热资源（也称地能,包括地下水、土壤或地表水等）的既可供热又可制冷的高效节能的空调技术。地源热泵通过输入少量的高品位能源（如电能）,实现低温位热能向高温位转移。由于全年地温波动小,冬暖夏凉,其季节性性能系数有着恒温热源热泵的特性,季节性平均性能系统较高。地能分别在冬季作为热泵供暖的热源和夏季空调的冷源,即在冬季,把地能中的热量取出来,提高温度后,供给室内采暖;夏季,把室内的热量取出来,释放到地能中去。通常地源热泵消耗１ｋＷ的能量,用户可以得到４ｋＷ以上的热量或冷量。…     

增强型地热系统结合热泵供暖系统研究

针对寒冷地区采用地源热泵供暖造成土壤冷负荷堆积的问题,文章提出一种增强型地热系统结合热泵的新型供暖系统作为解决方案。首先,介绍了该系统的组成及运行原理;然后,基于沈阳某场地的地质资料建立模型,进行水力压裂及产能分析,探讨了该系统各项指标的变化情况;最后,与传统地源热泵和太阳能-地源热泵进行了经济对比。结果表明:该系统可解决土壤冷负荷堆积问题,且可保持恒定供热量;投资回报年限较短;可节省大量空间和土地面积。     

Experimental research on geothermal heat pump system with non-azeotropic working fluids

The subject of the paper is how to solve the problem of heating in some areas and making the best of geothermal waste water through heat pump. Now the biggest barrier is to find proper working fluids, which can work in the condition of 80–100 °C as condensation temperature and 25–35 °C as evaporation temperature, and at the same time keep the highest pressure in the system under 2500 kPa. Experimental results show that new working fluids R123/R290 (50/50 by mass %) and R123/R290/R600a (40/50/10 by mass %) will meet the requirement of the new working condition. The coefficient of performance of the geothermal heat pump system using the working fluids is above 3.0 with condensation temperature above 80 °C and condensation pressures below 2500 kPa. In the end of the paper, some improvements are proposed for the purpose of better performance. In the paper, the thermodynamic properties of mixtures are calculated with REFPROP 6.1.     

Influence of two systematic parameters on the geothermal heat pump system operation

In order to match the output capacity of a geothermal heat pump system (GHPS) with the actual load requirement, research has been carried out in finding the influence of two systematic parameters, the water flow rate inside the condenser and the compressor input frequency on the GHPS operation. Experiments are done on a small-scale GHPS at the water flow rate ranging from 0.054 kg/s to 0.174 kg/s and the frequency from 30 Hz to 55 Hz. The analysis of the experimental data reveals the relationships among the compressor frequency, the water flow rate and other important parameters such as coefficient of performance (COP), heat capacity and compressor power input. The conclusions in the paper can serve as some guidance to the load adjustment of GHPS.     

水源热泵空调系统运行优化

以采用水源热泵机组的某住宅小区为例,分析其建筑的冷热负荷特性,探讨其变化规律;对水源热泵机组、水泵系统、热源井的运行控制策略提出优化方案,为同类工程的节能运行提供参考。