Effect of Environmental Deflector on Air Exchange in Slurry Pit and Concentration Distribution in a Two-dimensional Ventilation Chamber

Guohong Tong, Guoqiang Zhang, Peter Ravn, Li Rong, Peter V. Nielsen

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

353 Downloads (Pure)

Abstract

Variations of air exchanges in slurry pit with four angles of an environmental deflector, namely 0° (parallel to the side wall or without deflector), 30°, 45° and 90°, were investigated using a tracer gas method. The investigations were performed in a two-dimensional ventilation chamber in the Air physics Lab, University of Aarhus. Ventilation rates used in the experiments were 100 and 200 m3/h. The experiment results showed that using the deflectors of 30°, 45° and 90° the airflow patterns were obviously changed in the room space near the slatted floor and in the head space of the pit compared with the setup without deflector. It was also found that of all the deflector angle performances with respect to air-exchange ratio and concentration distribution, the deflector position of 45° in two airflow rates cases behaved better with the lowest pit ventilation and the highest concentration in the head space.
Original languageEnglish
Title of host publicationAgEng 2008 International Conference on Agricultural Engineerings : Conference Proceedings CD : Agricultural & Biosystems Engineering for a Sustainable World : Knossos Royal Village, Hersonissos - Crete, 23-25 June 2008, Greece
Number of pages7
PublisherAgEng
Publication date2008
Publication statusPublished - 2008
EventInternational Conference on Agricultural Engineering - Hersonissos, Crete, Greece
Duration: 23 Jun 200825 Jun 2008

Conference

ConferenceInternational Conference on Agricultural Engineering
CountryGreece
CityHersonissos, Crete
Period23/06/200825/06/2008

Bibliographical note

Published on a CD

Keywords

  • Ventilation
  • Slurry pit
  • Environmental deflector
  • Tracer gas

Fingerprint Dive into the research topics of 'Effect of Environmental Deflector on Air Exchange in Slurry Pit and Concentration Distribution in a Two-dimensional Ventilation Chamber'. Together they form a unique fingerprint.

Cite this