Improved Delta-Q Measurement Technique for Estimating the Total and Local Leakages in Residential Buildings
| Autor: | Samir Moujaes, Nabil Nassif |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
Energy loss Renewable Energy Sustainability and the Environment business.industry Airflow Environmental engineering Energy Engineering and Power Technology Flow measurement Distribution system Nuclear Energy and Engineering Duct (flow) business Waste Management and Disposal Civil and Structural Engineering Leakage (electronics) Marine engineering |
| Zdroj: | Journal of Energy Engineering. 137:76-87 |
| ISSN: | 1943-7897 0733-9402 |
| DOI: | 10.1061/(asce)ey.1943-7897.0000038 |
| Popis: | The duct leakage in forced-air distribution systems has been recognized for years as a major source of energy losses in residential buildings. Recently, a measurement technique for estimating the total air leakage from residential duct systems, called Delta-Q, has been proposed. It focuses on measuring the total supply and return air leakage flows outside at operating conditions that are required for energy loss calculations. This paper discusses the Delta-Q measurement technique and proposes improvements on its model to increase the accuracy of the total leakage estimations and to provide appropriate estimation of local leakages. Accurate estimations of the total and local leakages can help to focus the choice for both the right house and location in the duct system for performing the potential repair job. Proper information as to where the leakages are located inside the duct system can reduce the time required for the duct sealing task. This study uses detailed laboratory measurements to validate the o... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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