夏热冬暖地区地源热泵系统在多功能建筑中的适用性研究

发布时间：2018-11-08 18:05

【摘要】：本文针对夏热冬暖地区城市建筑密集区多功能建筑群楼的地源热泵空调热水系统的实际案例,通过实验研究其运行特性,运用软件进行能耗模拟,为夏热冬暖地区地源热泵技术在城市建筑密集区建筑的推广应用提供借鉴和指导。主要研究内容如下：(1)本文针对夏热冬暖地区城市建筑密集区的多功能建筑群楼提出了土壤换热器—冷却塔耦合型地源热泵空调热水系统设计方法,该系统可以综合实现夏季制冷、夏季冷热联供、冬季采暖以及常年供应热水四大应用。(2)在夏季供冷、冬季采暖以及全年制热水工况下通过单因素法对空调热水系统进行实验测试,研究环境温度、机组运行时间、地埋管长度、地埋管和空调循环介质流量等因素对系统的影响,对比得出了系统在不同工况下的合理运行方式,实验结果显示了在制冷、采暖和制取生活热水方面土壤源热泵系统的稳定高效。(3)对多功能建筑群楼的复合系统中三种不同供冷子系统,即常规冷水机系统、地源热泵系统和冷热联供系统分别进行能效测试,测试得到冷热联供系统的机组和系统能效比分别为7.1和5.2,地源热泵系统为5.8和4.2,冷水机系统为4.2和2.8,显示了土壤源热泵系统在制冷方面优势明显。(4)根据多功能建筑群楼实际情况与地源热泵空调系统实验数据,利用建筑能耗模拟软件HY-EP建立多功能建筑群楼的建筑模型和空调系统模型,模拟得到单位面积建筑年耗电量为101.9kWh/(m2.a),单位面积空调系统年耗电量为48.05kWh/(m2.a)。(5)在软件模拟的基础上定量分析空调机组COP、室内设定温度、新风量、风机效率和水泵效率5个因素对多功能建筑空调系统能耗的影响,得到各影响因素主次关系为：空调机组COP室内设定温度人均新风量水泵效率风机效率。
[Abstract]:This paper aims at the actual case of the ground source heat pump air conditioning and hot water system in the multi-function buildings of the urban buildings in the hot summer and warm winter area. Through the experimental study of its operation characteristics, the energy consumption simulation is carried out by using the software. It provides reference and guidance for the popularization and application of ground source heat pump technology in urban buildings in hot summer and warm winter. The main research contents are as follows: (1) in this paper, the design method of the soil heat exchanger-cooling tower coupled ground source heat pump air conditioning and hot water system is proposed for the multi-function buildings in the urban buildings in the hot summer and warm winter areas. The system can comprehensively realize four applications: summer refrigeration, summer cooling and heat supply, winter heating and perennial hot water supply. (2) cooling in summer. Under the condition of winter heating and annual hot water production, the air conditioning hot water system was tested by single factor method. The effects of environmental temperature, unit running time, underground pipe length, underground pipe and air conditioning circulation media flow rate on the system were studied. The reasonable operation mode of the system under different working conditions is obtained, and the experimental results show that the system can be used in refrigeration. The stability and efficiency of ground source heat pump system in heating and making domestic hot water. (3) three different cooling subsystems in the complex system of multifunctional buildings, that is, conventional water cooler system, are introduced. The energy efficiency of the ground-source heat pump system and the combined cooling and heat supply system were tested respectively. The energy efficiency ratios of the units and systems were 7.1 and 5.2, respectively, and 5.8 and 4.2 for the ground-source heat pump system, respectively. The chiller system is 4.2 and 2.8, which shows that the ground-source heat pump system has obvious advantages in refrigeration. (4) according to the actual situation of multi-function buildings and ground-source heat pump air conditioning system experimental data, The building model and air conditioning system model of multifunctional buildings were established by building energy consumption simulation software HY-EP, and the annual power consumption per unit area of buildings was obtained as 101.9kWh/ (m2.a). The annual power consumption of air conditioning system per unit area is 48.05kWh/ (m2.a). (5). On the basis of software simulation, the air conditioning unit COP, indoor setting temperature and fresh air volume are quantitatively analyzed. The influence of five factors on the energy consumption of air conditioning system in multifunctional buildings is obtained. The main and secondary relationships are as follows: the efficiency of per capita fresh air pump efficiency of air conditioning unit COP indoor setting temperature per capita.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU83

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