| 基于热电比拟的建筑外墙热性能分析方法 | |
| 程瑞 ; 王馨 ; 张寅平 ; CHENG Rui ; WANG Xin ; ZHANG Yin-Ping | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 建筑节能 热电比拟 瞬态传热耗散 building energy efficiency thermal-electric analogy transient heat transfer dissipation TU111 |
| 其他题名 | Transient Thermal Performance Analysis Method of Building Walls Based on Thermal-Electric Analogy |
| 中文摘要 | 围护结构传热占建筑物总传热比例较大,准确计算墙体瞬态传热对于建筑节能具有重要意义。传统负荷计算方法主要基于数值模拟及实验,无法得出简化分析的关键参数。本文基于热电比拟及戴维南等效电路理论,得出了瞬态传热阻抗的解析表达式。针对具体案例对阻抗的关键影响因素进行了敏感性分析。最后,定义了瞬态传热的三种耗散,包括由热阻产生的不可逆耗散,由热容产生的可逆耗散,以及总耗散。本文的方法为从热力学第一及第二定律的角度来分析及优化墙体瞬态传热提供了一种新的思路。; Heat transfer through building envelope takes a large part of total building heat transfer.Conventional load calculation method is mainly based on the numerical simulation and experiments,which can't derive some generalized parameters to characterize the transient thermal performance of building envelopes.A novel concept called the thermal impedance is put forward in this paper based on the R-C network and the Thevenin equivalent circuit theory.Three kinds of heat transfer dissipation are defined.This paper provides a novel concept to analyze and optimize the transient thermal performance of building envelope from both the 1st and 2nd law of thermodynamics. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/145052]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 程瑞,王馨,张寅平,等. 基于热电比拟的建筑外墙热性能分析方法[J],2016, 2016. |
| APA | 程瑞,王馨,张寅平,CHENG Rui,WANG Xin,&ZHANG Yin-Ping.(2016).基于热电比拟的建筑外墙热性能分析方法.. |
| MLA | 程瑞,et al."基于热电比拟的建筑外墙热性能分析方法".(2016). |
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