Estimation of infiltration from leakage and climate indicators |
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| Affiliation: | 1. Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, China 300072;2. School of Mechanical Engineering, Tianjin University, Tianjin, China 300072;3. School of Civil Engineering Dalian University of Technology (DUT), Dalian, China 116024;1. Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China;2. Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing 100084, China |
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| Abstract: | A simple model is developed for the estimation of annual infiltration rates in single- family houses using indicators for both house tightness (air changes at 50 Pa) and site climate (the leakage-infiltration ratio). This technique is best suited to low-accuracy, large dataset problems where detailed data are not available. The method is similar to the method attributed to Kronvall and Persily (i.e. the K-P method), but is derived from a physical model, the LBL infiltration model. The estimation technique is developed assuming a typical, single-story dwelling; correction factors for common variations in building and environmental conditions are tabulated. A map of the leakage-infiltration ratio in the U.S. for the reference case is also presented. |
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