MODELING OF DUST CONCENTRATION DISTRIBUTION IN A SIMULATED SWINE ROOM UNDER NON-ISOTHERMAL CONDITIONS
| Autor: | Lawrence J. Hagen, M. C. Puma, M. H. Hosni, R. G. Maghirang |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Environmental engineering
Analytical chemistry Numerical modeling Generation rate complex mixtures Agricultural and Biological Sciences (miscellaneous) Isothermal process respiratory tract diseases Indoor air quality Lung disease Particle-size distribution Environmental science Temperature difference Air quality index |
| Zdroj: | Transactions of the ASAE. 42:1823-1832 |
| ISSN: | 2151-0059 |
| DOI: | 10.13031/2013.13346 |
| Popis: | Experimental and numerical modeling were conducted to determine the dust concentration distribution in a simulated, mechanically ventilated, swine nursery room under non-isothermal conditions. Effects of dust generation rate, temperature difference between supply air and inside air, dust source location, and presence/absence of obstructions (mock pigs) on dust concentration were also evaluated. Results from numerical modeling agreed well with measured values from full-scale tests, based on the ASTM (1995) guidelines. Analysis of the measured values indicated that the dust source location significantly (p < 0.05) influenced the dust concentration distribution; dust concentration was higher at or near the source. However, the effects of temperature difference between supply air and inside air (7.0 vs. 16.0°C), dust generation rate (low vs high), and presence/absence of the mock pigs on dust concentration distribution were not statistically significant (p > 0.05). |
| Databáze: | OpenAIRE |
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