建筑能量系统热力学分析与低?优化研究

发布时间：2018-02-25 04:33

本文关键词： 建筑能量系统能源供应 ?分析节能评价低?优化　出处：《西安建筑科技大学》2015年博士论文　论文类型：学位论文

【摘要】：提高建筑能源利用效率,控制建筑的能源消耗是建筑节能的主要任务。而现行的能效分析方法存在以下问题:对不同形式,来源各异的能量缺少统一的能源起点;基于热力学第一定律的“能量分析”只考虑能在数量的利用程度,忽略了能的品质差异;建筑节能研究多独立分析设备或建筑用能,缺少对能源利用完整能量链的统一分析,因而难以全面考察建筑能量系统的用能效果。针对现有节能分析方法对于不同形式能源产品缺少统一能源起点的问题,研究分析能源产品上游生成阶段的能量来源和辅助能耗情况,并以?作为各能源间投入产出关系的量化基准,得到了能源产品的上游?成本分析方法,为不同能源产品的利用提供统一分析基准。建筑设备方面,通过分析设备的基本功能属性,将建筑设备系统模块单元化,形成了建筑设备系统各基本单元的?分析模块库,通过调用模块库中的设备单元可组合实现不同功能的设备系统。根据设备系统的?传递特性,同时考虑辅助?量输入,得到建筑设备系统的总?效率分析方法,为建筑设备系统方案的性能评价及低?优化提供基础。建筑端,依据建筑中各用能项目的基本能耗量和能质需求特征,得到建筑中各用能项目的基本?耗量与其影响因素的数学关系式。分析设备系统输出?量与建筑基本?耗量之间的匹配关系并建立了建筑物?利用效果评价指标。利用统计数据分别对中国城镇住宅建筑和公共建筑的?利用效果进行了分析,研究发现:中国城镇住宅和公共建筑的?利用效率均远低于相应的能量利用效率,存在巨大的节?潜力。然而,近十年的节能措施对于住宅和公共建筑部分?利用效率的改善效果十分有限。此外,研究查明了住宅建筑和公共建筑的?损耗分布和原因。对于包含能源供应、设备系统和建筑端?收益这一完整能量链的建筑能量系统,研究利用?成本分析统一各能源产品的起点,提出了设备系统的通用?分析模型,明确了建筑?收益的计算方法,从而得到由基础?源输出到建筑物?量耗散全过程的?分析方法,并建立基于?分析的建筑节能评价指标体系。此外,研究针对典型采暖及空调用能系统进行了?效率和?损率分析,并给出了低?优化方法。综上可见,建筑能量系统的?分析全面考察系统的用能效果,并查明?损耗的位置、大小和原因,为建筑能量系统的低?优化指明方向,同时为区域能源规划以及高效能源利用提供分析方法。
[Abstract]:The main task of building energy conservation is to improve the efficiency of building energy use and to control the energy consumption of buildings. However, the existing energy efficiency analysis methods have the following problems: for different forms and different sources of energy, there is a lack of a unified energy starting point; The "energy analysis" based on the first law of thermodynamics only considers the degree of energy utilization in quantity and neglects the difference of energy quality. Therefore, it is difficult to comprehensively investigate the energy use effect of building energy systems. In view of the lack of a unified energy starting point for different forms of energy products, the existing energy saving analysis methods, Research and analysis of energy sources and auxiliary energy consumption in upstream generation phase of energy products, and use? As a quantitative benchmark of input-output relationship among energy sources, the upstream of energy products is obtained. Cost analysis method provides a unified analysis benchmark for the use of different energy products. In the aspect of construction equipment, by analyzing the basic functional attributes of the equipment, the building equipment system modules are unitized and the basic units of the construction equipment system are formed. Analyzing the module library, the device system with different functions can be realized by calling the equipment unit in the module library. Transfer characteristics while considering auxiliaries? Input, get the total construction equipment system? Efficiency analysis method, for building equipment system performance evaluation and low? Optimization provides the foundation. At the end of the building, according to the basic energy consumption and energy quality demand characteristics of each energy use project in the building, get the basic energy use project in the building? Mathematical relationship between consumption and its influencing factors. Analysis of equipment system output. Basic quantity and Architecture? A matching relationship between consumption and building? Use effect evaluation index. Using statistical data to Chinese urban residential buildings and public buildings respectively? Analysis of the effects of the use of the study found: China's urban housing and public buildings? The utilization efficiency is far lower than the corresponding energy use efficiency, there is a huge section? Potential. However, for the last decade of energy conservation measures for the residential and public building sector? Efficiency improvements have been limited. In addition, research has identified residential and public buildings? Loss distribution and causes. For energy supply, equipment systems and building ends? The benefits of this complete energy chain for building energy systems, research and utilization? Cost analysis unifies the starting point of each energy product, and puts forward the general purpose of equipment system. Analysis of the model, clear building? How to calculate the income from the foundation? Source output to buildings? The whole process of dissipation? Analyze the method and establish a method based on? In addition, the research is aimed at the typical heating and air conditioning energy use system. Efficiency and? The loss rate is analyzed, and the low loss rate is given. Optimization methods. From the above, we can see that the energy system of the building? Analyze the energy use effect of the system and find out? The location, size and cause of loss for the low energy system of the building? Optimizes the direction, simultaneously provides the analysis method for the regional energy planning and the efficient energy utilization.
【学位授予单位】：西安建筑科技大学
【学位级别】：博士
【学位授予年份】：2015
【分类号】：TU201.5

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