酒店建筑太阳能—地源热泵复合系统的研究

发布时间：2018-04-12 17:54

本文选题：酒店建筑 + 太阳能　；参考：《山东建筑大学》2013年硕士论文

【摘要】：节能环保是我国推进可持续发展战略、实现能源合理利用、保持经济健康发展的重要举措。酒店建筑节能主要表现在空调系统节能和热水系统节能等方面,太阳能和地源热泵的相互结合利用,对能源利用具有重要的意义,也越来越受到人们的关注。本文通过数值模拟,总结多个城市酒店建筑的全年负荷特性,把所研究地区分为A、B、C三个典型区域/分别代表地埋管地源热泵空调系统全年地下累计吸热量远大于释热量的地区、释吸热量相当的地区和释热量远大于吸热量的地区,其中C区根据全年释吸热量差值大小分为C1、C2两个区；分别提出适合于A区的太阳能蓄热式地源热泵空调系统、适合于C1区的太阳能-地源热泵空调+生活热水系统和适合于C2区的地源热泵空调+生活热水系统；对三种系统进行方案设计、控制策略探讨和经济性分析。首先,利用DeST软件模拟多个城市全年建筑动态负荷,根据模拟的负荷特性把研究区域分为A、B、C三个典型区域,A区代表城市为长春、敦化、哈尔滨,B区代表城市为乌鲁木齐、呼和浩特、冷湖,Cl区代表城市为大连、太原、成山头,C2区代表城市为济南、北京、西安。其次,提出了适用于A区酒店建筑的太阳能蓄热式地源热泵复合系统,把太阳能热水系统和空调系统结合设计,利用太阳能系统解决地源热泵空调系统的地下冷热平衡问题,利用地源热泵系统作为太阳能热水系统的辅助热源,解决由于太阳能不足造成的热水供应不稳定或辅助加热能耗大的问题。给出了酒店建筑太阳能蓄热式地源热泵系统的不同的运行工况及具体的运行策略,确定了该系统的设计方案。以长春、敦化、哈尔滨三个城市为例证明该系统可以满足A区地下热量平衡的要求。以哈尔滨为代表城市,计算了太阳能蓄热式地源热泵系统的初投资和运行费用,证明该系统运行费用低、初投资回收年限少。第三,提出了适合于C1区酒店建筑的太阳能-地源热泵空调+生活热水复合系统,充分利用地源热泵空调系统的全年累计释吸热量差值制取生活热水,既能解决地下冷热平衡问题,又可减少太阳能集热器面积。给出了酒店建筑太阳能-地源热泵空调+生活热水复合系统的不同的运行工况及具体的运行策略。第四,提出了适合于C2区酒店建筑的地源热泵空调+生活热水系统,生活热水的热量完全来自地源热泵系统,不设置太阳能系统。确定了该系统的设计方法和流程,以济南、西安、北京三个城市的实例证明,该系统全年地下吸释热量不平衡率小于15%。以济南为例,证明该系统在初投资、运行费用、系统维护费用等方面具有经济可行性。该系统在c1区具有较大的工程推广价值。
[Abstract]:Energy saving and environmental protection is an important measure to promote sustainable development strategy, realize rational use of energy and maintain healthy economic development.The energy saving of hotel buildings is mainly reflected in the energy saving of air conditioning system and hot water system. The combination of solar energy and ground source heat pump is of great significance to the energy utilization and has been paid more and more attention.Through numerical simulation, this paper summarizes the year-round load characteristics of many urban hotel buildings, and divides the studied area into three typical areas, which represent the underground heat absorption of ground-source heat pump air conditioning system, which is much larger than that of heat release in the whole year.The area with the same amount of heat to be released and the area where the heat is released is much larger than that in the region of heat absorption, in which area C is divided into two regions according to the value of the value of the heat released during the year, and the solar regenerative ground source heat pump air conditioning system suitable for area A is put forward respectively.The solar-ground source heat pump air conditioning domestic hot water system suitable for C1 area and the ground source heat pump air conditioning domestic hot water system suitable for C2 area are designed, the control strategy is discussed and the economic analysis is carried out.First of all, using DeST software to simulate the dynamic load of many cities throughout the year, according to the simulated load characteristics, the study area is divided into three typical areas: Changchun, Dunhua and Urumqi.The representative cities of Huhhot, Lianhu and Cl-district are Dalian, Taiyuan and Chengshantou C2-region, which are represented by Jinan, Beijing and Xi'an.Secondly, a solar regenerative ground-source heat pump compound system suitable for hotel buildings in area A is proposed. The solar water heating system is combined with the air-conditioning system to solve the problem of underground cooling and heat balance of the ground-source heat pump air conditioning system.The ground-source heat pump system is used as the auxiliary heat source of the solar water heating system to solve the problem of unstable hot water supply caused by the lack of solar energy and large auxiliary heating energy consumption.The different operating conditions and specific operation strategies of the solar regenerative ground source heat pump system in hotel buildings are given, and the design scheme of the system is determined.Taking Changchun, Dunhua and Harbin as examples, it is proved that the system can meet the requirements of underground heat balance in area A.Taking Harbin as the representative city, the initial investment and operating cost of the solar regenerative ground-source heat pump system are calculated. It is proved that the operating cost of the system is low and the initial investment recovery period is less.Thirdly, the solar and ground source heat pump air conditioning domestic hot water compound system is put forward, which is suitable for the hotel buildings in C1 area, which makes full use of the annual cumulative heat absorption heat difference of the ground source heat pump air conditioning system to make the domestic hot water.It can not only solve the problem of underground cooling and heat balance, but also reduce the area of solar collector.The different operating conditions and specific operation strategies of the solar and ground source heat pump air conditioning and domestic hot water complex system in hotel buildings are presented.Fourthly, a ground-source heat pump air conditioning system is proposed, which is suitable for the hotel buildings in C2 area. The heat of domestic hot water comes entirely from the ground-source heat pump system, and no solar energy system is installed.The design method and flow chart of the system are determined. The examples of Jinan, Xi'an and Beijing show that the unbalance rate of underground heat absorption in the whole year is less than 15%.Taking Jinan as an example, it is proved that the system has economic feasibility in the aspects of initial investment, operation cost, system maintenance cost and so on.The system has great engineering value in C1 area.
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831

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