2014
DOI: 10.15446/dyna.v81n187.40806
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Adaptation and validation of a methdology for determing ammonia flux generated by litter in naturally ventilated poultry houses

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Cited by 15 publications
(14 citation statements)
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“…Considerando que o conhecimento dos níveis de emissão constitui um dos fatores norteadores principais para que os órgãos nacionais e internacionais possam exercer o controle ambiental e eliminar barreiras na comercialização de produtos da cadeia avícola (OSORIO-SARAZ et al, 2014), e também para manter a posição de maior exportador de carne de frango, o Brasil deve adequar-se às normas e exigências internacionais atendendo aos padrões de qualidade exigidos, aos requisitos de bem-estar animal e às questões ambientais relacionadas principalmente à qualidade do ar.…”
Section: Palavras-chaveunclassified
“…Considerando que o conhecimento dos níveis de emissão constitui um dos fatores norteadores principais para que os órgãos nacionais e internacionais possam exercer o controle ambiental e eliminar barreiras na comercialização de produtos da cadeia avícola (OSORIO-SARAZ et al, 2014), e também para manter a posição de maior exportador de carne de frango, o Brasil deve adequar-se às normas e exigências internacionais atendendo aos padrões de qualidade exigidos, aos requisitos de bem-estar animal e às questões ambientais relacionadas principalmente à qualidade do ar.…”
Section: Palavras-chaveunclassified
“…The heat flux generated by the chicks was estimated using the expression of Pedersen & Thomsen (2000); d) the effect of variation of the barn floor temperature on ammonia flux J" A (kg m -2 s -1 ) was taken into account in the CFD model according to the results found and presented by Saraz et al (2014) and Souza et al (2016); e) for the interaction of the surface of the curtains with the inside air, a "no-slip" convective convection was assumed; and f) the roof lining temperature was assumed to be constant because it rapidly equates to the inside air temperature of the barn (T indoor ). Also, experimental data showed that when the outside air temperature reached 15 o C and the housed chicks presented a small heat irradiation rate, the values of the roof lining temperature did not vary significantly .…”
Section: Boundary Conditionsmentioning
confidence: 99%
“…For more than a decade, the impacts of NH3 emissions on the environment have been the focus of research studies in several European countries and in North America (Faulkner and Shaw 2008;Mosquera et al 2005;Scholtens et al, 2004), where gas inventories have already been carried out and protocols to reduce ammonia emissions have been established. In these countries, studies evaluating pollutant emissions from animal production facilities can generally be performed relatively easily, since most of the facilities are closed and, therefore, control the volume of air in the coats (Osorio-Saraz et al 2014).…”
Section: Introductionmentioning
confidence: 99%