地源热泵供暖空调的经济性

地源热泵是利用地表浅层土壤能量（地下水、土壤或地表水）作为冬季热泵热源供暖和夏季冷源进行空调的系统,地源温度全年相对稳定的特性使得地源热泵比传统空调系统运行效率要高,地源热泵是否具有经济竞争性仍是一个非常关键的问题,该文对地源热泵与传统的供暖空调系统进行经济性比较。首先将地源热泵与传统供暖方式,如燃煤、燃油和天然气锅炉进行供暖经济性的比较,再将地源热泵与常规电制冷空调方式进行空调经济性的比较,然后将地源热泵与锅炉加空调两种方式共四种方式共四种方案进行综合经济性的比较分析。     

某综合楼地源热泵空调系统设计

介绍了某综合楼运用的地源热泵空调系统,从初投资和运行费用方面将地源热泵空调系统与传统的水冷螺杆机组＋燃气锅炉系统进行了比较,分析了地源热泵空调系统的地域和节能优势。     

污水源热泵供热空调的技术经济分析

污水源热泵是一种以污水(包括处理的和未处理的污水)作为其冷热源的空调系统。作为一种新兴事物，技术的可靠性和经济的竞争力是其推广的关键。本文对污水源热泵的原理和形式作了详尽的介绍，并将污水源热泵和传统热泵空调进行了技术上的比较。同时使用了能源工程项目中最常用的两种方法，将污水源热泵同燃煤 空调、燃油 空调、燃气 空调及电锅炉 空调这几种传统的供暖空调形式分别进行了供暖经济性比较、制冷经济性比较和综合经济性比较分析。     

太阳能地源热泵式空调系统研究

提出了太阳能地源热泵式空调系统的概念,研究了该系统的工作原理。对热管式太阳能集热器和地源热泵的热力计算方法进行了理论分析;结合工程实例,介绍了太阳能地源热泵式空调系统的设计思路和运行方式。     

地源热泵与风冷热泵的技术经济性能比较

通过对地源热泵系统与风冷热泵系统在技术性能和经济性能方面进行的对比，显示了地源热泵的特点，并通过对工程运行的实测，验证了地源热泵的突出效果。研究结果表明：地源热泵比风冷热泵等传统空调系统具有明显的优势，是今后发展潜力最大的空调技术之一。     

地源热泵空调系统自动控制策略研究与实现

地源热泵空调系统的自动控制,是相关设计环节当中的要点工作。针对这一方面的内容展开论述,分析了地源热泵空调系统的自动控制策略,并且对相关工作的研究以及实现进行了细致的探究,旨在更进一步促进地源热泵空调系统节能性以及操作性的提高,全面改进传统设计工艺中的不足之处,进而为现代化的空调系统质量的改进奠定坚实的基础条件。     

土壤源热泵在某宾馆中的应用及节能分析

介绍了某宾馆的土壤源热泵空调系统。从初投资和运行费用方面将土壤源热泵空调系统与电锅炉＋传统空调系统进行了比较。重点分析了土壤源热泵系统在酒店中应用的优势。     

土壤源热泵在建筑中的应用

叙述了土壤源热泵系统的基本组成、工作原理、性能特点、技术优势、环境影响等。对土壤源热泵系统的效益和远景进行了分析。认为,地源热泵技术已成为制冷、采暖中央空调市场的主要首选,将逐渐代替燃油、燃煤、燃汽锅炉、空气源热泵等传统的取暖空调型式。     

地源热泵空调系统的经济性分析

介绍了地源热泵系统的概念和在我国的发展概况 ,并对地源热泵系统与几种常用空调系统的经济性进行了对比分析     

地源热泵空调机组连续运行过程仿真与经济性分析

对1台额定供冷量为5 kW的地源热泵空调机组进行数学建模,并将其用于地源热泵空调机组夏季连续稳定制冷运行过程的仿真研究,以揭示地下埋管传热特性对地源热泵空调机组运行经济性的影响。研究结果表明,地源热泵空调机组的能耗和COP始终处于变化之中,大致分为急变、过渡和趋稳3个阶段,各个阶段的能耗和COP差别显著,但仍总是优于空气源热泵空调机组。对于该工况下运行的地源热泵空调机组,应以趋稳阶段的能耗和COP作为选型的依据。     

Exergetic performance evaluation of heat pump systems having various heat sources

In this study heat pump systems having different heat sources were investigated experimentally. Solar‐assisted heat pump (SAHP), ground source heat pump (GSHP) and air source heat pump (ASHP) systems for domestic heating were tested. Additionally, their combination systems, such as solar‐assisted‐ground source heat pump (SAGSHP), solar‐assisted‐air source heat pump (SAASHP) and ground–air source heat pump (GSASHP) were tested. All the heat pump systems were designed and constructed in a test room with 60 m² floor area in Firat University, Elazig (38.41°N, 39.14°E), Turkey. In evaluating the efficiency of heat pump systems, the most commonly used measure is the energy or the first law efficiency, which is modified to a coefficient of performance for heat pump systems. However, for indicating the possibilities for thermodynamic improvement, inadequate energy analysis and exergy analysis are needed. This study presents an exergetic evaluation of SAHP, GSHP and ASHP and their combination systems. The exergy losses in each of the components of the heat pump systems are determined for average values of experimentally measured parameters. Exergy efficiency in each of the components of the heat pump systems is also determined to assess their performances. The coefficient of performance (COP) of the SAHP, GSHP and ASHP were obtained as 2.95, 2.44 and 2.33, whereas the exergy losses of the refrigerant subsystems were found to be 1.342, 1.705 and 1.942 kW, respectively. The COP of SAGSHP, SAASHP and GSASHP as multiple source heat pump systems were also determined to be 3.36, 2.90 and 2.14, whereas the exergy losses of the refrigerant subsystems were approximately 2.13, 2.996 and 3.113 kW, respectively. In addition, multiple source heat pump systems were compared with single source heat pump systems on the basis of the COP. Exergetic performance coefficient (EPC) is introduced and is applied to the heat pump systems having various heat sources. The results imply that the functional forms of the EPC and first law efficiency are different. Results show that Ex_loss,total becomes a minimum value when EPC has a maximum value. Copyright © 2008 John Wiley & Sons, Ltd.     

我国地源热泵相关技术专利综合分析

地源热泵是一种利用浅层土壤或含水层实现供热和空调制冷的高效节能设备。随着我国政府和社会对节能环保越发重视,地源热泵技术的优势将更加突出。最近几年我国地源热泵发展较迅速,在设计、制造、运行、管理等方面都取得了一些研究成果。对国内最近地源热泵的相关专利进行了检索,并进行了定性与定量分析,为该领域的研究者和企业提供专利信息参考,并归纳总结了一些研究热点,以期为我国地源热泵行业的研究开发与市场发展提供决策参考和技术依据。     

Performance and economic feasibility of ground source heat pumps in cold climate

Ground source heat pumps (GSHP) are attractive alternatives to conventional heating and cooling systems owing to their higher energy utilization efficiency. In this paper, the effect of various system parameters on GSHP performance is studied using a computer model. Also, a comparative economic evaluation is carried out to assess the feasibility of using a GSHP in place of conventional heating/cooling systems and an air source heat pump. The results indicate that system parameters can have a significant effect on performance, and that GSHP is economically preferable to conventional systems. © 1997 John Wiley & Sons, Ltd.     

太阳能辅助地源热泵联合供暖(制冷)运行模式分析

太阳能和地源热泵联合供暖系统以其良好的节能和环保特性,近年来得到国内外众多学者和研究机构的广泛关注。总结了国内外地源热泵和太阳能集热器联合供暖（制冷）技术的发展现状和最新研究动态,介绍了太阳能辅助地源热泵联合供暖（制冷）的技术和特点,指出太阳能辅助地源热泵供暖（制冷）技术具有较好的发展前景。     

A design and simulation tool for ground source heat pump system using energy piles with large diameter

Calculation of the underground temperature resulting from heat injection/extraction into/from ground heat exchangers (GHEXs) with hourly variation is one of the most noteworthy challenges to address when simulating and designing a ground source heat pump (GSHP). In order to overcome this challenge, the authors introduce a method to calculate the underground temperature, by considering heat injection/extraction into/from GHEXs with hourly variation. The method applies the superposition of the infinite cylindrical source (ICS) solution and the infinite line source (ILS) solution to calculate the temperature change due to heat injection/extraction into/from the considered GHEX and other neighboring GHEXs, respectively. The calculation method also considers heat injection/extraction from GHEXs with different heat injection/extraction rates and is able to accommodate GHEXs with large diameters such as energy piles. The calculation method was evaluated by applying it to calculate the temperature variation of the heat carrier fluid in a GSHP system with energy piles.     

湿土壤含湿特性对传热影响研究

针对于地源热泵地能换热系统在具有热源条件下土壤热湿迁移现象,进行了初步分析和实验,并对模拟计算应用可行性进行了认证。土壤含水静态传热实验,目的在于探讨土壤含湿程度对传热能力的影响,以及地下含水程度对换热区域换热性能的影响。研究土壤不同含水率情况下的传热性能,从而推断含水率在工程中的影响程度。为进一步研究地源热泵应用中关于土壤含水的传热问题奠定基础。     

利用LCA评价方法对土壤源热泵节能减排效益的研究

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。     

太阳能与土壤源耦合供暖系统的实验研究

在分析太阳能、土壤源热泵及联合供热特点的基础上,研究了太阳能热泵独立系统、土壤源耦合热泵系统运行模式的制热性能和节能效果,建立了太阳能蓄能-热泵耦合热泵系统的供暖模式及优化模型.通过采暖季初期的太阳能蓄能、供暖,土壤源热泵独立供暖及太阳能-土壤源耦合热泵供热的实验研究,验证了太阳能-土壤源耦合热泵供暖模式的可行性和经济...     

竖直埋管地热换热器钻孔内的传热分析

准三维模型为竖直埋管地热换热器的结构优化提供了较为精确的理论基础。利用准三维模型对竖直埋管地热换热器进行分析与研究得出，不同的行程布置对双U型埋管地热换热器的传热性能有较大影响。就钻孔内热阻的对比，双U型埋管比单U型埋管钻孔内的热阻低，因而双U型埋管地热换热器较单U型埋管地热换热器更为合理。     

垂直螺旋盘管地源热泵供暖制冷实验研究

结合一实际用户建立垂直螺旋盘管地源热泵实验系统，在供暖制冷工况下测量地下盘管的进出水温度，盘管从地下的取热量、排热量，从而分析系统性能、供热、制冷系数。