文章基本信息

标题：Simplified Calculation of the Global Thermal Insulation Coefficient
本地全文：下载
作者：Alexandru Secu ; Claudiu Romila
期刊名称：Bulletin of the Polytechnic Institute of Jassy, Constructions, Architechture Section
印刷版ISSN：1224-3884
电子版ISSN：2068-4762
出版年度：2014
卷号：LXIV
期号：3
页码：67-78
出版社：Gheorghe Asachi Technical University of Jassy
摘要：According to Romanian Norm C107/1-2005, the heating energy consumption per volume is determined using the global coefficient of thermal insulation (G). The calculation requires the determination of the adjusted thermal resistance, R′, using the influence of thermal bridges on the 1D thermal resistance values. When computing G, the most time consuming stage is the determination of linear and punctual heat transfer coefficients, that requires either the use of thermal bridge catalogues (with errors of about 20...25%) or numerical modelling (with a maximum error of ±5%.). Both methods have the disadvantage of requiring more resources, without, however, being free of errors. This paper presents a simplified method for the calculation of the global coefficient of thermal insulation only with the 1D thermal resistances values, without using the linear heat transfer coefficients.
关键词：1D thermal resistance; adjusted thermal resistance; thermal bridges; temperature distribution; energy efficiency