Saving Strategy and Simulation Analysis of Green Log Walls in Severe Cold Area
Hong-Peng Xu, Si Li
(School of Architecture, Harbin Institute of Technology, Harbin 150001, China)
Abstract:
Log house is a traditional type of vernacular dwelling in Chinese cold area. It contains distinct regional characteristics and architectural cultures. In recent years, log house has come into vogue softly with the development of wood techniques. However, log houses expend too much wood materials. There are also many negative aspects of this type of wood building which go against the criteria of energy conservation, and its high prime cost hinders the application as well. To solve these problems, the paper emphasizes using more environmental standardized techniques which save cost at the same time, and put forward technical strategy to improve the log walls. The optimization schemes are mainly divided into two categories: internal insulation and filled insulation. Each type of insulation is respectively derived two schemes through changing the thickness of main structure layers and insulation layer. Firstly, we use Weto software to calculate the timber volume of the four schemes, and it concludes that all the optimizations can save more timber than the prototype log wall with the section of 200 mm×200 mm. Secondly, thermal comfort of each scheme is insulated in Design Builder. The results show that thermal insulation of filling type represents better than the other schemes. At last, we use thermal calculating formula to calculate thermal resistance of every scheme. Contrast to the energy efficiency standards of Heilongjiang Province, the data show that the four schemes meet the requirements of the specification.
Key words: sever cold area log wall green wood building thermal comfort simulation
DOI:10.11916/j.issn.1005-9113.2014.05.008
Clc Number:TU227
Fund:
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Saving Strategy and Simulation Analysis of Green Log Walls in Severe Cold Area
本站小编 哈尔滨工业大学/2019-10-24
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