中国寒冷地区零能耗建筑可行性及运行分析

发布时间：2018-04-20 21:20

本文选题：零能耗 + 寒冷地区　；参考：《天津大学》2014年硕士论文

【摘要】：能源问题是当今世界各国都关心的问题。而建筑能耗占据了社会总能耗的27.45%,因此我们应高度重视这部分能耗。可再生能源的利用以及建筑自身节能为建筑能耗的降低起到了“开源节流”的作用。作为两者的集成,零能耗建筑应运而生。相对于国外零能耗建筑的蓬勃发展,我国零能耗建筑仅处于起步状态,尤其在理论及实践方面,我国仍有很大的发展潜力。本文首先介绍了零能耗建筑的理论以及实现的必要条件。在零能耗建筑理论方面,通过对建筑能量方程的阐述,总结出零能耗建筑的能量平衡关系,并通过对该关系的讨论,总结出在计算层面零能耗建筑的影响因素,为后续的研究明确计算范围。而室内环境、全年净能耗以及建筑节能率则构成了实现零能耗建筑的必要条件。本文介绍了天津市某示范建筑为实现自身建筑零能耗所采用的节能技术,并利用专业能耗软件eQUEST对该示范零能耗建筑进行了全年逐时动态负荷模拟并对其做出了相应的分析。模拟结果显示:该示范建筑理想工况下全年耗能241.372MWh。通过与光伏发电系统设计发电量对比发现,在理论上,该建筑能够实现“零能耗”。同时,与以公建标准设计的参照建筑相比,该零能耗建筑全年节能率高达27.4%。最后本文对现阶段示范建筑的实际运行能耗进行了评价与分析。在目前入住率为70%的情况下,该示范建筑并没有实现建筑零能耗的状况。其主要原因是建筑自身能耗高,而且光伏自身发电过低。通过与模拟状况各项能耗对比发现,示范建筑能耗过高的原因是因为建筑照明及设备并没有严格按照运行策略运行;地源热泵机组效率低并且循环水泵能耗过高;室内温度设定人为调低等。但经分析可得,建筑自身用能通过优化可以实现其设计目标。但因一些客观条件的存在制约了光伏板发电系统既定目标的实现。
[Abstract]:Energy problem is the concern of all countries in the world today. And building energy consumption occupies 27.45% of the total energy consumption of the society. Therefore, we should attach great importance to this part of energy consumption. The use of renewable energy and the energy saving of buildings to reduce the energy consumption of building has played the role of "saving energy". As the integration of the two, zero energy building should be shipped. Relative to the flourishing development of zero energy building in foreign countries, China's zero energy building is only in its starting state, especially in theory and practice, our country still has great potential for development. This paper first introduces the theory of zero energy building and the necessary conditions for its realization. In the theory of zero energy building, the energy equation of building is expounded. The energy balance relationship of zero energy consumption building is summed up, and through the discussion of this relationship, the influence factors of zero energy building in the calculation level are summarized, and the scope of calculation is clear for the follow-up research. The indoor environment, the net energy consumption and the building energy saving rate constitute the necessary conditions for the realization of zero energy consumption building. This paper introduces a certain Tianjin city. The demonstration building is the energy saving technology used to realize the zero energy consumption of its own building, and using the professional energy consumption software eQUEST to simulate the dynamic load of the model zero energy consumption building all the year round and make the corresponding analysis. The simulation results show that the energy consumption of the whole year under the ideal working condition of the demonstration building is 241.372MWh. through the photovoltaic power generation system. At the same time, compared with the reference building designed by the public construction standard, the energy saving rate of the zero energy building is up to 27.4%. at the same time. At the end of this paper, the actual operating energy consumption of the present demonstration building is evaluated and analyzed. The current occupancy rate is 70%. The main reason is that the building itself has high energy consumption, and the photovoltaic itself is too low. Through the comparison of the energy consumption of the simulated conditions, it is found that the reason for the high energy consumption of the demonstration building is that the building lighting and equipment do not operate strictly according to the operation strategy; the efficiency of the ground source heat pump unit is low. And the energy consumption of the circulating water pump is too high, the indoor temperature setting is low, but the design goal can be achieved through optimization by analysis. However, the objective conditions of some objective conditions restrict the realization of the established target of the photovoltaic power generation system.

【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU201.5

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