A practical review of alternatives to the steady pressurisation method for determining building airtightness

RENEWABLE & SUSTAINABLE ENERGY REVIEWS

卷:132

Review

Zheng, Xiaofeng¹  Cooper, Edward²  Gillott, Mark¹  Wood, Christopher¹ 

[1] Univ Nottingham, Fac Engn, Bldg Energy & Environm Res Grp, Univ Pk, Nottingham NG7 2RD, England

[2] Univ Nottingham Ningbo China, Fac Sci & Engn, Dept Architecture & Built Environm, 199 Taikang East Rd, Ningbo 315100, Peoples R China

关键词: Building airtightness;    Steady pressurisation;    Blower door;    Unsteady technique;    The pulse technique;    Acoustic method;   

DOI  :  10.1016/j.rser.2020.110049

来源: Elsevier

【 摘 要 】

As an important indicator of construction quality and envelope integrity of buildings, airtightness is responsible for a considerable amount of energy losses associated with infiltration. It is crucial to understand building airtightness during construction and retrofitting to achieve a suitable envelope airtightness which is essential for obtaining a desirable building energy efficiency, durability and indoor environment. As a convenient means of measurement, the current steady pressurisation method has long been accepted as a standard testing method for measuring building airtightness. It offers an intuitive and robust approach for measuring building airtightness and performing building diagnostics. However, it also has some shortcomings that are mainly related to its high pressure measurement, requirement for skilful operation, long test duration and change to the building envelope. Efforts have been made by manufacturers and researchers to further improve its accuracy and practicality with much progress achieved. Work has also been done to develop alternative methods that can overcome some of the issues. This paper provides a practical review on the incumbent methodology and efforts that have been made over the past decades in research and development of other methods to achieve a similar purpose. It compares them in relation to aspects that are considered important in achieving an accurate, quick and practical measurement of building airtightness and the finding shows other methods such as acoustic and unsteady technique have their own advantages over the steady pressurisation method but also add some of their own restrictions, which therefore makes them suited for different applications.

【 授权许可】

Free