基于能效测评的围护结构节能率研究
基于能效测评的围护结构节能率研究(任务书,开题报告,论文21000字)
摘要
建筑中的围护结构节能是建筑节能的重要组成部分，建筑外围结构的保温性能的好坏，直接影响建筑耗能量的高低。因此，加强围护结构节能设计，从小的方面来讲，可以对居住环境进行改善，从大的方面来讲，可促进社会的可持续发展。
本论文通过选取江苏省多个能效测评项目中的计算结果及其围护结构节能技术并归纳统计，对不同节能设计标准、不同地区的围护结构特色及其节能性能进行对比分析，再利用 PKPM能耗分析软件对民用建筑进行模拟，改变其外围护结构参数（保温材料类型、保温材料厚度等），得出其不同耗能水平，并与相对节能率进行比对，分析得出具有较高节能效益的围护结构节能技术的应用方法。研究相对节能率增加速率与各保温材料厚度的关系，发现公共建筑、居住建筑外墙保温材料厚度分别控制在30到60mm之间和30到40mm之间是最有节能效益的；公共建筑、居住建筑屋面保温材料厚度分别控制在40到60mm和30到55mm时有较好的节能效益。
通过这次研究分析，加强了对能效测评中相对节能率和围护结构关系的理解，在建筑围护结构设计中能够更好的设计围护结构，从而可以降低建筑能耗，提高建筑能效。 [资料来源：https://www.doc163.com]
关键词：建筑节能 能效测评 建筑围护结构
Abstract
The energy saving of the building envelope is an important part of building energy efficiency. Thermal performance of the building envelope structure will directly affect the level of building energy consumption. Therefore, the strengthening of energy-saving building envelope design can improve the living conditions from the small side and promote the sustainable development of society from the big side.
In this paper, by selecting some calculated results of some energy efficiency evaluation project in Jiangsu and summarized statistics of the envelope energy technologies, building envelope and the energy performance characteristics of different regions and energy efficiency design standards were analyzed. By using consumption analysis software PKPM for the simulation of the civil building and changing the outer envelope parameters (insulation material type, insulation material thickness, etc.), different levels of energy consumption can be got. Compared with relative energy-saving rate, the method of energy-saving technologies in building envelope energy efficiency can be got. By studying on the relationship between the rate of increase in relative energy-saving rate and the thickness of the insulation material, the thickness of wall insulation controlled at between 30 to 60mm and 30 to 40mm in public buildings and residential buildings is the most energy-efficient and the thickness of roof insulation controlled at 40 to 60mm and 30 to 55mm in public buildings and residential buildings have better energy efficiency.
[版权所有：http://DOC163.com]
Through this research and analysis, the understanding of relative energy efficiency ratio and structural relationships of the envelope in energy efficiency evaluation could be enhanced. Therefore , we could design a better envelope in building envelope design, which can reduce energy consumption and improve energy efficiency in buildings.
Key Words: EEB； Energy efficiency evaluation； Building envelope
[资料来源：http://www.doc163.com]
目录
摘要 I
Abstract II
引言 1
第一章 绪论 3
1.1民用建筑能效测评 3
1.2建筑能效测评的发展 3
1.3课题研究内容及必要性 5
第二章 我国建筑能效测评标识体系 7
2.1民用建筑能效标识等级 7
2.2民用建筑能效测评方法 8
2.3能效测评内容 8
第三章 围护结构节能技术及基础项相对节能率 10
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3.1围护结构节能技术 10
3.2基础项节能率与相对节能率 15
第四章 围护结构应用与相对节能率的关系 17
4.1研究对象概况 17
4.2外墙传热与相对节能率 17
4.3屋面传热与相对节能率 23
4.4外窗传热与相对节能率 27
4.5本章总结 31
第五章 能效测评案例分析 32
5.1软件介绍 32
5.2公共建筑项目案例 32
5.3居住建筑项目案例 40
5.4本章总结 48
第六章 结论与展望 50
6.1主要结论 50
6.2展望 50
参考文献 51
致谢 53 [版权所有：http://DOC163.com]