| Download | - View accepted manuscript: Pressure differences caused by chimney effect in three high buildings and Building pressures caused by chimney action and mechanical ventilation (PDF, 2.3 MiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/40000444 |
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| Author | Search for: Tamura, G. T.1; Search for: Wilson, A. G.1 |
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| Affiliation | - National Research Council Canada
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| Format | Text, Article |
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| Conference | 1967 ASHRAE Annual Meeting, June 26-28, 1967, Minneapolis, MN, USA |
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| Edition | reprint |
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| Subject | Indoor air; high rise buildings; stack effect; pressurization |
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| Abstract | The authors describe the results of field studies to measure overall air leakages and the pattern of pressure differences caused by the chimney effect, both alone and in combination with building ventilation systems. The zone in which the interior pressure equalled the exterior pressure in the buildings was at a level ranging between 35 and 52 per cent of building height. Pressure differences across entrances were lower with ventilation systems off than would be calculated from the ASHRAE Handbook because of the low height of the zero pressure-difference zone and the significant pressure losses across first-floor ceilings. The ratio of actual to theoretical draft varied between 0.6¤ 3 and 0.82.andThis paper describes the results of a study on the pattern of pressure differences caused by the chimney effect and mechanical ventilation. For this purpose, the authors used a mathematical model representing a building. They determined the effects of variations in airtightness of the exterior walls and partitions and of the number of storeys on the pattern of pressure differences. They also examined the way in which imposed pressure differences, whether uniform or not, affect the pattern of pressure differences caused by the chimney effect. These data provide the basis for the prevention of air leakages caused by chimney action. They also help in interpreting the practical measures referred to in the companion paper entitled " Pressure Differences Caused by Chimney Effect in Three High Buildings". |
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| Publication date | 1968-01-01 |
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| Publisher | National Research Council of Canada. Division of Building Research |
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| Series | |
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| Note | Reprinted from ASHRAE Transactions 1967, vol. 73, part II, no. 2046 and no. 2047. |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 9950
NRC-IRC-3940 |
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| NPARC number | 20375218 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 428d9531-8e59-4efd-9c7e-9afda756f736 |
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| Record created | 2012-07-23 |
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| Record modified | 2023-01-25 |
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