某医院建筑冷热源节能改造方案与效果分析

发布时间：2018-03-17 09:29

本文选题：既有公共建筑　切入点：能源审计　出处：《华中科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：能源短缺制约着社会经济的发展,我们应当合理使用能源。随着国民经济的发展和建筑面积的不断增加,以及人们对室内环境要求的不断提高,建筑能耗也随之明显增加。统计表明,目前建筑能耗约占我国全国能源总消耗量的30%左右。公共建筑由于其复杂的使用功能等建筑特点,其能耗水平一直居高不下,因此具有较大的节能潜力,一直以来是建筑节能改造工作的重点。本文首先收集了部分数据并在此基础上整理分析武汉市各类公共建筑能耗总体情况,分析了建筑能耗的主要影响因素及建筑节能潜力,提出既有公共建筑节能改造的适宜技术。本文利用能耗模拟软件DeST,对某已改造的某医院建筑进行建筑模型搭建,建立建筑几何模型,模拟建筑负荷,并与建筑实际图纸和现场调查结果进行对比分析,确定模型搭建的准确性。随后针对该建筑改造前能耗情况分析其能耗制约因素及节能潜力,对冷热源及生活热水系统的改造提出三种不同方案:风冷热泵系统、地源热泵系统、水冷螺杆机组加锅炉系统。运用TRNSYS模拟软件对三种不同的冷热源及生活热水系统的节能改造方案进行模拟,对模拟结果进行分析,结合工程实际和初投资等对比不同方案的经济性、可行性、适用性,最后将模拟改造方案与实际改造运行结果进行对比,对实际节能改造措施进行客观评价。本文的研究目的旨在分析某医院建筑的节能潜力及适宜改造技术,对武汉地区医院建筑节能工作的开展提供改造参考,本文研究方法与结论可为类似公共建筑节能改造提供参考。
[Abstract]:Energy shortage restricts the development of social economy, so we should use energy reasonably. With the development of national economy and the increasing of building area, and the increasing requirement of indoor environment, The building energy consumption also increased obviously. Statistics show that building energy consumption accounts for about 30% of the total energy consumption in China at present. Because of its complex use function and other building characteristics, the level of energy consumption of public buildings has always remained high. Therefore, it has great energy saving potential, which has always been the focus of building energy saving reconstruction. Firstly, this paper collects some data and analyzes the overall situation of energy consumption of all kinds of public buildings in Wuhan. This paper analyzes the main influence factors of building energy consumption and the potential of building energy saving, and puts forward the appropriate technology for energy saving transformation of existing public buildings. In this paper, the energy consumption simulation software is used to build a building model of a hospital building that has been reformed. The geometric model of the building is established, the load of the building is simulated and compared with the actual drawing of the building and the result of the field investigation. Then, according to the analysis of the energy consumption restriction factors and energy saving potential of the building before retrofit, three different schemes are put forward for the retrofit of cold and heat source and domestic hot water system: air cooled heat pump system, ground source heat pump system, air cooled heat pump system, ground source heat pump system, air cooled heat pump system and ground source heat pump system. The water cooling screw unit plus boiler system is used to simulate three different energy saving retrofit schemes of heat and cold source and domestic hot water system by using TRNSYS simulation software, and the simulation results are analyzed. Combining with engineering practice and initial investment, this paper compares the economy, feasibility and applicability of different schemes. Finally, the simulated transformation scheme is compared with the actual reconstruction operation result. The purpose of this paper is to analyze the energy-saving potential and appropriate retrofit technology of a hospital building, and to provide a reference for the development of energy-saving work of hospital buildings in Wuhan area. The research methods and conclusions of this paper can provide a reference for similar public buildings.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU246.1;TU201.5

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