Study on the Influence of Velocity, Turbulence Intensity and Temperature on Ammonia Emission Rate in a Wind Tunnel

Li Rong, Peter V. Nielsen, Guoqiang Zhang

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Odor emissions from manure in livestock buildings are an important issue which concerns the human health and air quality as well as animals. Ammonia is one of the most important odors in pig houses. The objective of this paper is to investigate the influence of local velocity, turbulence intensity and temperature on the ammonia emission rate. The experiments are conducted in a wind tunnel which is used to simulate the boundary layer of the flow above the slurry. The results show that the emission rate of ammonia increases with increasing velocity and turbulence intensity as expected. The results also show that decreasing the temperature of ammonia aqueous solution decreases the ammonia emission rate dramatically, but the emission rate is more sensitive to the change of temperature at higher compared to lower temperature range. The mass transfer coefficient is inversely proportional with the Reynolds number and also inversely proportional with the Archimedes number. Key word: ammonia emission rate, velocity, turbulence intensity, temperature.
Original languageEnglish
Title of host publicationROOMVENT 2009 : Proceedings of the 11th International ROOMVENT Conference
EditorsKwang-Woo Kim, Dong-Won Yoon, Myoung Souk Yeo, Hyeun-Jun Moon, Cheol-Soo Park
Publication date2009
Pages691-698
Publication statusPublished - 2009
EventThe International Conference on Air Distribution in Rooms : ROOMVENT - Busan, Korea, Republic of
Duration: 24 May 200927 May 2009
Conference number: 11

Conference

ConferenceThe International Conference on Air Distribution in Rooms : ROOMVENT
Number11
CountryKorea, Republic of
CityBusan
Period24/05/200927/05/2009

Bibliographical note

Conference website http://www.roomvent2009.org/

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