Numerical modelling of air temperature and velocity in a forced and free ventilation piggery

Paper

Mossad, Ruth. 2001. "Numerical modelling of air temperature and velocity in a forced and free ventilation piggery." 2001 ASME International Mechanical Engineering Congress and Exposition (IMECE 2001). New York, United States of America 11 - 16 Nov 2001 United States.

Authors
Paper/Presentation Title	Numerical modelling of air temperature and velocity in a forced and free ventilation piggery
Presentation Type	Paper
Author	Mossad, Ruth
Journal or Proceedings Title	Proceedings of the 2001 ASME International Mechanical Engineering Congress and Exposition (IMECE 2001)
Journal Citation	369 (5), pp. 445-451
Number of Pages	7
Year	2001
Place of Publication	United States
ISBN	0791819418
Conference/Event	2001 ASME International Mechanical Engineering Congress and Exposition (IMECE 2001)
Event Details	2001 ASME International Mechanical Engineering Congress and Exposition (IMECE 2001) Parent ASME International Mechanical Engineering Congress and Exposition (IMECE) Event Date 11 to end of 16 Nov 2001 Event Location New York, United States of America
Abstract	Pigs are subjected to intensive environment control and management for higher productivity due to their sensitivity to climatic variation, which affects their growth. The aim of the current work is to numerically model the air speed and temperature in forced and free ventilation piggeries to achieve optimum environmental control. A steady twodimensional numerical model including the effect of buoyancy, turbulence and heat generated by the pigs was solved using the computational fluid dynamics software Fluent, which is based on the integral volume method. In the forced ventilation case, air speed and temperature inside the piggery and at the pigs' level were predicted for three different locations of ventilation opening, variable air inlet velocities (in the range 0.3 mls - 7 mls), and insulated or non insulated external walls, for ambient temperatures of 5°c and 32°C. In the free ventilation case, temperature and air speed at the pig's level were predicted for a particular wind speed and direction, and some variations in the design. These variations were adding louvers in the air opening, lowering the outer wall of the piggery and changing the type of pen fence used. These results helped to identify problems in the design and offer suggestions for improvements.
Keywords	animal housing; animal environment; piggery; computational fluid dynamics; forced ventilation; airflow pattern
ANZSRC Field of Research 2020	401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics)
	401706. Numerical modelling and mechanical characterisation
Public Notes	Files associated with this item cannot be displayed due to copyright restrictions.
Byline Affiliations	Department of Mechanical and Mechatronic Engineering
Institution of Origin	University of Southern Queensland

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