Methodology for airflow rate measurements in a naturally ventilated mock-up animal building with side and ridge vents

13273 13 59051 5 165274 document 59051 Van Overbeke et al_ 2016_Building and Environment.pdf application/pdf efb6d5b6bd079f9cbad06cfc574fbc81 MD5 4766937 2016-06-01 10:49:04 https://pure.iiasa.ac.at/id/eprint/13273/1/Van%20Overbeke%20et%20al_%202016_Building%20and%20Environment.pdf 13273 1 1 application/pdf text en public cc_by

Van Overbeke et al_ 2016_Building and Environment.pdf

59052 1 165283 document 59052 indexcodes.txt text/x-c++ 89a8a2dd7c58d385860a115406851665 MD5 12703 2016-06-01 10:58:33 https://pure.iiasa.ac.at/id/eprint/13273/2/indexcodes.txt 13273 2 2 text/x-c++ other Generate index codes conversion from text to indexcodes en staffonly

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/59051 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/59051 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/59051 archive 2 disk0/00/01/32/73 2016-06-01 10:52:46 2021-08-27 17:41:13 2016-06-01 10:52:46 article show Van Overbeke P. De Vogeleer G. Mendes L.B. 2100 Brusselman E. Demeyer P. Pieters J.G. Methodology for airflow rate measurements in a naturally ventilated mock-up animal building with side and ridge vents pub prog_air prog_esm prog_mag Currently there exists no generally accepted reference technique to measure the ventilation rate through naturally ventilated (NV) vents. This has an impact on the reliability of airflow rate control techniques and emission rate measurements in NV animal houses. As an attempt to address this issue a NV test facility was built to develop new airflow rate measurement techniques for both side wall and ridge vents. Three set-ups were used that differed in vent configuration, i.e. one cross ventilated set-up and two ridge ventilated set-ups with different vent sizes. The airflow through the side vents was measured with a technique based on an automatic traverse movement of a 3D ultrasonic anemometer. In the ridge, 7 static 2D ultrasonic anemometers were installed. The methods were validated by applying the air mass conservation principle, i.e. the inflow rates must equal the outflow rates. The calculated in - and outflow rates agreed within (5 ± 8)%, (8 ± 5)% and (−9 ± 7)% for the three different set-ups respectively, over a large range of wind incidence angles. It was found that the side vent configuration was of large importance for the distribution of the airflow rates through the vents. The ridge proved to be a constant outlet, whilst side vents could change from outlet to inlet depending on the wind incidence angle. The range of wind incidence angles in which this transition occurred could be clearly visualised. 2016 Elsevier 10.1016/j.buildenv.2016.05.036 25 public Building and Environment 105 153-163 TRUE 0360-1323 FALSE no info:eu-repo/semantics/article