Assessment using CFD of the wind direction on the air discharges caused by natural ventilation of a poultry house

Fernando Rojano, Pierre Emmanuel Bournet, Melynda Hassouna, Paul Robin, Murat Kacira, Christopher Y. Choi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Air inside poultry houses must be removed on a regular basis to prevent excess of heat, particles and noxious gases that can imperil animals. To cope with this issue, natural ventilation could be an effective method when assisted by accurate predictions. This study investigates air discharges caused by natural ventilation of a poultry house by means of a three-dimensional computational fluid dynamics (CFD) model. It solves the governing equations of momentum, heat and mass transport, radiative transfers and animal-generated heat. Wind directions of 0°, 36° and 56° (0° corresponds to a wind blowing perpendicular to the ridgeline) were investigated; the CFD model predictions achieved a RMSE of 1.2 °C and 0.6 g[H2O] kg−1 [dry air] for internal temperature and absolute humidity, respectively, when air blew with an angle of 36°. Air renewal rates (ARR) were 39.5 (± 1.9), 34.9 (± 2.2) and 33.6 (± 1.7) volumes of the building per hour, when air blew at 0°, 36° and 56°, respectively. Such ARR predictions served to know how the gases contained in air would likely spread downstream from the building in order to define regions of potentially high gas concentration that could endanger neighbouring habitable facilities.

Original languageEnglish (US)
Article number724
JournalEnvironmental Monitoring and Assessment
Volume190
Issue number12
DOIs
StatePublished - Dec 1 2018

Fingerprint

Poultry
poultry
computational fluid dynamics
Discharge (fluid mechanics)
wind direction
Ventilation
ventilation
Computational fluid dynamics
air
Air
Dynamic models
Animals
prediction
Gases
gas
animal
Radiative transfer
mass transport
Blow molding
radiative transfer

Keywords

  • Animal housing
  • Gas dispersion
  • Humidity
  • Plume shape
  • Ventilation rate

ASJC Scopus subject areas

  • Environmental Science(all)
  • Pollution
  • Management, Monitoring, Policy and Law

Cite this

Assessment using CFD of the wind direction on the air discharges caused by natural ventilation of a poultry house. / Rojano, Fernando; Bournet, Pierre Emmanuel; Hassouna, Melynda; Robin, Paul; Kacira, Murat; Choi, Christopher Y.

In: Environmental Monitoring and Assessment, Vol. 190, No. 12, 724, 01.12.2018.

Research output: Contribution to journalArticle

Rojano, Fernando ; Bournet, Pierre Emmanuel ; Hassouna, Melynda ; Robin, Paul ; Kacira, Murat ; Choi, Christopher Y. / Assessment using CFD of the wind direction on the air discharges caused by natural ventilation of a poultry house. In: Environmental Monitoring and Assessment. 2018 ; Vol. 190, No. 12.
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