Achievements of CFD to investigate internal climate and air quality of poultry houses

F. Rojano, P. E. Bournet, M. Hassouna, P. Robin, M. Kacira, C. Y. Choi

Research output: Contribution to conferencePaperpeer-review

Abstract

Poultry production buildings must promote growth while maintaining animal welfare. The specific design of the building and the equipment used determine the operating conditions that will provide the internal environment required by the animals. The present work summarises a series of computational fluid dynamics (CFD) studies under transient conditions which investigate each of the main elements that modify the internal climate and air quality of a naturally ventilated poultry house. Interactions between the interior and exterior were modelled, taking account of radiative, convective and conductive heat transfer. Furthermore, the investigation included contributions (e.g. heat and water vapour) pertaining to the animals and the rearing system (e.g. accumulated litter) in the animal occupied zone. Thus, internal climate was described by means of internal temperature and absolute humidity, which also served to quantify sensible and latent heat. Validation was undertaken on the basis of the distributed temperature and humidity patterns. Gas exchanges were studied by analysing water vapour concentrations and estimating ventilation rates. A derived study was also undertaken to assess the impact of wind direction on the internal climate and consequently on the predictions of gas discharge, together with the capacity of the building to renew air. The overall investigation serves to enhance predictions related to climate and air quality. These contributions may also serve as a reference for strategic further research on internal climate and gas exchanges occurring in livestock buildings.

Original languageEnglish (US)
Pages320-329
Number of pages10
StatePublished - Jan 1 2017
Event8th European Conference on Precision Livestock Farming, 2017 - Nantes, France
Duration: Sep 12 2017Sep 14 2017

Other

Other8th European Conference on Precision Livestock Farming, 2017
CountryFrance
CityNantes
Period9/12/179/14/17

Keywords

  • Livestock buildings
  • Microclimate modelling
  • Natural ventilation
  • Water vapour

ASJC Scopus subject areas

  • Animal Science and Zoology

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