Numerical predictions of air temperature and velocity to assist in the design of free ventilation piggeries

Paper


Mossad, R. R.. 2009. "Numerical predictions of air temperature and velocity to assist in the design of free ventilation piggeries ." Banhazi, T. M. and Saunders, C. (ed.) SEAg 2009: Agricultural Technologies In a Changing Climate. Brisbane, Australia 13 - 16 Sep 2009 Brisbane, Australia.
Paper/Presentation Title

Numerical predictions of air temperature and velocity to assist in the design of free ventilation piggeries

Presentation TypePaper
Authors
AuthorMossad, R. R.
EditorsBanhazi, T. M. and Saunders, C.
Journal or Proceedings TitleProceedings of the 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture (SEAg 2009)
Number of Pages7
Year2009
Place of PublicationBrisbane, Australia
ISBN9780858259096
Web Address (URL) of Paperhttp://search.informit.com.au/fullText;dn=641198788551199;res=IELENG
Conference/EventSEAg 2009: Agricultural Technologies In a Changing Climate
Event Details
SEAg 2009: Agricultural Technologies In a Changing Climate
Event Date
13 to end of 16 Sep 2009
Event Location
Brisbane, Australia
Abstract

Pigs are subjected to intensive environmental control and management for higher productivity due to their sensitivity to climatic variation. The climate affects pigs’ growth and impacts greatly on the profitability of this industry. The aim of the current work is to numerically model the air
velocity and temperature in a free ventilation piggery for grower pigs (32-52 kg) and to investigate the effect of variation in the design on the environment inside the piggery and more specifically at the pigs’ level. These variations were reducing the height of the outer wall of the piggery to the same level as the pens and changing the type of fence used in the pens as well as adding louvers in
the air opening, changing the shape of the roof and adding insulation to the roof. A steady twodimensional
numerical model based on the integral volume method including the effect of buoyancy, turbulence and heat generated by the pigs was solved using the computational fluid dynamics software Fluent. The results suggest that varying the type of fence from a solid internal
fence to one made of separated bars (new fence) did not have much impact on the environment inside the piggery. When this change was combined with the other variation such as lowering the outer walls it made some improvements. Combining the new fence, lowering the outer walls and
changing the shape of the roof resulted in the highest increase in the air speed of about 0.2-0.4 m/s at the pigs’ level. These improvements would be only sufficient in milder climate. If these variations were combined with appropriate water sprayers it will help to meet the pigs’ thermal comfort limit at that hot climate.

Keywordspig housing; computational fluid dynamics; natural ventilation
ANZSRC Field of Research 2020300302. Animal management
401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics)
409901. Agricultural engineering
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsDepartment of Mechanical and Mechatronic Engineering
Permalink -

https://research.usq.edu.au/item/9z666/numerical-predictions-of-air-temperature-and-velocity-to-assist-in-the-design-of-free-ventilation-piggeries

Download files


Published Version
Mossad_CIGR_2009_AV.pdf
File access level: Anyone


Other Documentation
Mossad_Doc_6483.pdf
File access level: Anyone

  • 2041
    total views
  • 339
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

A review of the water desalination systems integrated with renewable energy
Alkaisi, Ahmed, Mossad, Ruth and Sharifian-Barforoush, Ahmad. 2017. "A review of the water desalination systems integrated with renewable energy." Energy Procedia. 110, pp. 268-274. https://doi.org/10.1016/j.egypro.2017.03.138
Investigating two configurations of a heat exchanger in an indirect heating integrated collector storage solar water heating system
Mossad, Ruth and AL-Khaffajy, Marwaan. 2013. "Investigating two configurations of a heat exchanger in an indirect heating integrated collector storage solar water heating system." Journal of Energy and Power Engineering. 7 (1), pp. 66-73.
CFD study of the hydraulic performance of large-diameter gated fluming
Koech, Richard, Mossad, Ruth, Smith, Rod and Gillies, Malcolm. 2015. "CFD study of the hydraulic performance of large-diameter gated fluming." Journal of Irrigation and Drainage Engineering. 141 (2), pp. 1-7. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000795
Numerical modelling of the velocity field of a plane jet flow at moderate jet exit Reynolds numbers
Mossad, Ruth and Deo, Ravinesh C.. 2015. "Numerical modelling of the velocity field of a plane jet flow at moderate jet exit Reynolds numbers." Solnordal, C. B., Liovic, P., Delaney, G. W., Cummins, S. J., Schwarz, M. P. and Witt, P. J. (ed.) 11th International Conference on CFD in the Minerals and Process Industries. Melbourne, Australia 07 - 09 Dec 2015 Melbourne, Australia.
Data on the construction of a mathmatical model to test the optimisation of the air gap spacing in a solar water heater with double glass cover ANSYS 13.0-Fluent software files.
Mossad, Ruth. 2016. Data on the construction of a mathmatical model to test the optimisation of the air gap spacing in a solar water heater with double glass cover ANSYS 13.0-Fluent software files. Toowoomba. University of Southern Queensland.
Optimization of the heat exchanger in a flat plate indirect heating integrated collector storage solar water heating system
AL-Khaffajy, Marwaan and Mossad, Ruth. 2013. "Optimization of the heat exchanger in a flat plate indirect heating integrated collector storage solar water heating system." Renewable Energy. 57, pp. 413-421. https://doi.org/10.1016/j.renene.2012.11.033
Numerical prediction of the performance of horizontal sand filters as the pitch of the spiral protrusion changes
Mossad, Ruth and Aral, Hal. 2013. "Numerical prediction of the performance of horizontal sand filters as the pitch of the spiral protrusion changes." Water Science and Technology. 67 (10), pp. 2249-2256. https://doi.org/10.2166/wst.2013.112
Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)
Mossad, R. and AL-Khaffajy, M.. 2012. "Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)." Donsion, Manuel and Aguera, Angeles (ed.) International Conference on Renewable Energies and Power Quality (ICREPQ12). Santiago de Compostela, Spain 28 - 30 Mar 2012 Spain.
Energy usage reduction in supermarket refrigerated food cabinets
Mossad, Ruth. 2011. "Energy usage reduction in supermarket refrigerated food cabinets." Lee, Susan (ed.) Encyclopedia of energy engineering and technology. London, United Kingdom. Taylor & Francis. pp. 1-7
Optimization of the air gap spacing in a solar water heater with double glass cover
AL-Khaffajy, M. and Mossad, R.. 2011. "Optimization of the air gap spacing in a solar water heater with double glass cover." Soria, Julio (ed.) 9th Australasian Heat and Mass Transfer Conference. Melbourne, Australia 02 - 04 Nov 2011 Melbourne, Australia .
Numerical predictions of air temperature and velocity distribution to assist in the design of natural ventilation piggery buildings
Mossad, R. R.. 2011. "Numerical predictions of air temperature and velocity distribution to assist in the design of natural ventilation piggery buildings." Australian Journal of Multi-Disciplinary Engineering. 8 (2), pp. 181-187.
Optimization of the ventilation system for a forced ventilation piggery
Mossad, Ruth. 2009. "Optimization of the ventilation system for a forced ventilation piggery." Journal of Green Building. 4 (4), pp. 113-133. https://doi.org/10.3992/jgb.4.4.113
Numerical simulation of open refrigerated display cabinets
Mossad, Ruth, Schillak, Thomas and Malli, Mike. 2005. "Numerical simulation of open refrigerated display cabinets." 3rd International Conference on Energy Research and Development (ICERD-3). Kuwait City, Kuwait 21 - 23 Nov 2005 Kuwait.
Numerical prediction of air flow in a sharp 90 degree elbow
Mossad, Ruth, Yang, William and Schwarz, M. Philip. 2009. "Numerical prediction of air flow in a sharp 90 degree elbow ." Witt, P. J. and Schwarz, M. P. (ed.) 7th International Conference on Computational Fluid Dynamics in the Minerals and Process Industries (CFD 2009). Melbourne, Australia 09 - 11 Dec 2009 Melbourne, Australia.
Inertisation of highwall mining to control methane concentrations at the Moura mine
Mossad, Ruth, Vella, Anthony and Balusu, Rao. 2009. "Inertisation of highwall mining to control methane concentrations at the Moura mine." Witt, P. J. and Schwarz, M. P. (ed.) 7th International Conference on Computational Fluid Dynamics in the Minerals and Process Industries (CFD 2009). Melbourne, Australia 09 - 11 Dec 2009 Melbourne, Australia.
Numerical modeling of flow in a horizontal sand filter
Mossad, Ruth and Aral, Hal. 2010. "Numerical modeling of flow in a horizontal sand filter." American Journal of Engineering and Applied Sciences. 3 (2), pp. 286-292.
Two dimensional transfer chute analysis using a continuum method
McIlvenna, Paul and Mossad, Ruth. 2003. "Two dimensional transfer chute analysis using a continuum method ." Witt, Peter J. and Schwarz, M. P. (ed.) 3rd International Conference on Computational Fluid Dynamics in the Minerals and Process Industries (CFD 2003). Melbourne, Australia 10 - 12 Dec 2003 Melbourne, Australia.
Evaporation, seepage and water quality management in storage dams: a review of research methods
Craig, Ian, Aravinthan, Vasantha, Baillie, Craig Peter, Beswick, Alan, Barnes, Geoff, Bradbury, Ron, Connell, Luke, Cooper, Paul, Fellows, Christopher, Fitzmaurice, Li, Foley, Joseph P., Hancock, Nigel, Lamb, David, Morrison, Pippa, Mossad, Ruth, Misra, R. K., Pittaway, Pam, Prime, Emma, Rees, Steve, ..., Turnbull, David. 2007. "Evaporation, seepage and water quality management in storage dams: a review of research methods." Environmental Health. 7 (3), pp. 84-97.
Cooling towers
Mossad, Ruth. 2011. "Cooling towers." Capehart, Barney L. (ed.) Encyclopedia of energy engineering and technology. London, United Kingdom. Informa UK (Taylor & Francis Books). pp. 246-254
Numerical simulation to optimize the design of double glazed doors for closed refrigerated vertical display cabinets
Mossad, Ruth. 2006. "Numerical simulation to optimize the design of double glazed doors for closed refrigerated vertical display cabinets." de Vahl Davis, Graham and Leonardie, Eddie (ed.) 13th International Heat Transfer Conference IHTC-13. Sydney, Australia 13 - 18 Aug 2006 Redding, CT, USA.
Development of a CFD based dam evaporation model
Craig, I. P., Mossad, R. and Hancock, N.. 2006. "Development of a CFD based dam evaporation model." 11th International Health Summer School. Brisbane, Australia 21 - 22 Nov 2006 Brisbane, Queensland.
Finite element solutions of nonsteady incompressible viscous flow between two rotating concentric spheres
Mossad, Raos Riad. 1993. "Finite element solutions of nonsteady incompressible viscous flow between two rotating concentric spheres." Computers and Fluids. 22 (6), pp. 697-711. https://doi.org/10.1016/0045-7930(93)90034-7
Numerical modelling of air temperature and velocity in a forced ventilation piggery
Mossad, Ruth. 2000. "Numerical modelling of air temperature and velocity in a forced ventilation piggery." Journal of Thermal Science. 9 (2), pp. 211-216. https://doi.org/10.1007/s11630-000-0053-7
Numerical modelling of air temperature and velocity in a forced and free ventilation piggery
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.