Modelling of ammonia emissions from naturally ventilated livestock buildings. Part 2: air change modelling
Article
Article Title | Modelling of ammonia emissions from naturally ventilated livestock buildings. Part 2: air change modelling |
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ERA Journal ID | 3455 |
Article Category | Article |
Authors | Bjerg, Bjarne (Author), Liberati, Paolo (Author), Marucci, Alvaro (Author), Zhang, Guoqiang (Author), Banhazi, Thomas (Author), Bartzanas, Thomas (Author), Cascone, Giovanni (Author), Lee, In-Bok (Author) and Norton, Tomas (Author) |
Journal Title | Biosystems Engineering |
Journal Citation | 116 (3), pp. 246-258 |
Number of Pages | 13 |
Year | 2013 |
Publisher | Elsevier |
Place of Publication | London, United Kingdom |
ISSN | 1537-5110 |
1537-5129 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biosystemseng.2013.01.010 |
Abstract | This review shows the theoretical background for development of lumped ventilation models that can be integrated into models that aim to aid either design or operation of low emission naturally-ventilated buildings. The strength of lumped parameter modelling methods is that they have the potential to include effects of varying outdoor climate conditions, varying heat production from animals and the building design, which allow estimation of ventilation rate and indoor air temperature and humidity, with acceptable calculation times.With regard to design of low emission buildings, significant challenges still exist in reflecting the spatial distribution of ammonia emission surfaces and the influence of air velocity above these surfaces.In relation to operation of natural ventilation systems, it is obvious that lumped parameter methods have the potential to aid automatic control systems that aim to optimise the adjustment of automatically controlled openings for natural ventilation in a way that prevents over-ventilation and, thereby, minimises ammonia emission, without compromising indoor aerial conditions. It is also foreseen that lumped parameter methods have the potential to optimise opening adjustment and exhaust strategies in hybrid ventilation systems. In these contexts, ventilation is can be combined with a partial pit exhaust ventilation system which makes it possible to collect a significant fraction of the entire ammonia emission in a limited air stream. This may make it affordable to utilise air cleaning technologies in conjunction with naturally ventilated animal buildings. |
Keywords | ammonia emissions; exhaust ventilation system; hybrid ventilation system; indoor air temperature; livestock buildings; lumped parameter method; lumped parameter modelling; natural ventilation |
ANZSRC Field of Research 2020 | 300205. Agricultural production systems simulation |
300302. Animal management | |
401199. Environmental engineering not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Copenhagen, Denmark |
University of Bologna, Italy | |
Tuscia University, Italy | |
Aarhus University, Denmark | |
National Centre for Engineering in Agriculture | |
Centre for Research and Technology Thessaly, Greece | |
University of Catania, Italy | |
Seoul National University, Korea | |
Harper Adams University, United Kingdom | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2697/modelling-of-ammonia-emissions-from-naturally-ventilated-livestock-buildings-part-2-air-change-modelling
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