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	Provedor de dados AGRIAMBI (3) Autor Rocha,Keller S. O. (3) Tinoco,Ilda F. F. (3) Mendes,Luciano B. (2) Damasceno,Flavio A. (1) G.,Lina M. Guerra (1) H.,Robinson Osorio (1) Ogink,Nico W. M. (1) Osorio S,Jairo A. (1) Osorio S.,Jairo A. (1) Osorio,Robinson (1) Santos,Marilú S. (1) Saraz,Jairo A. O. (1) Tobón,Julio C. A. (1) Mais... Palavra-chave Ammonia concentration (1) Bioclimatic conditions (1) Computational simulation (1) Emission factor (1) Inventory (1) Natural ventilation (1) Poultry production (1) Thermal comfort (1) Tropical conditions (1) Ventilation rate (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2017 (1) 2016 (1) 2014 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Thermal environment in two broiler barns during the first three weeks of age AGRIAMBI H.,Robinson Osorio; Tinoco,Ilda F. F.; Osorio S,Jairo A.; Mendes,Luciano B.; Rocha,Keller S. O.; G.,Lina M. Guerra. ABSTRACT The objective of this research was to evaluate the internal thermal environment of two broiler barns featuring different ventilation systems representative of Brazilian and South American poultry production industry: (a) a negative-pressure tunnel and (b) a positive-pressure lateral ventilation system. Environmental parameters such as dry bulb temperature, relative humidity and temperature-humidity index were assessed; temperature maps for day and night average conditions were determined for the first three weeks of life. Better uniformity of the thermal environment and comfort conditions inside the negative-pressure tunnel were found. Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermal comfort; Poultry production; Bioclimatic conditions. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300256 A CFD approach to assess the effects of different opening combinations in poultry houses AGRIAMBI Saraz,Jairo A. O.; Rocha,Keller S. O.; Damasceno,Flavio A.; Tinoco,Ilda F. F.; Osorio,Robinson; Tobón,Julio C. A.. ABSTRACT The aim of this study was to use computational fluids dynamics (CFD) to evaluate hygiene and comfort conditions in function of temperature level and ammonia (NH3) concentration during the night in commercial poultry houses used in Brazil and countries with tropical and subtropical climates. Four models with different curtain heights and different air inlet and outlet positions were used, adopting the open building typology without thermal insulation. The validated CFD model did not present statistical differences from the experimental data, making it possible to use this model to predict the behavior in the four proposed cases. This model can be used to improve the internal conditions of the poultry facilities during the night and could be an... Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural ventilation; Ammonia concentration; Computational simulation. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001200852 Ammonia emissions from a naturally and a mechanically ventilated broiler house in Brazil AGRIAMBI Mendes,Luciano B.; Tinoco,Ilda F. F.; Ogink,Nico W. M.; Rocha,Keller S. O.; Osorio S.,Jairo A.; Santos,Marilú S.. This study was conducted with the aim of monitoring NH3 emissions from a mechanically and a naturally ventilated broiler house (MVB and NVB, respectively) and calculate their ammonia emission factors (fNH3). Bird stocking density was 13.5 and 11.1 birds m-2 for the MVB and NVB, respectively. The marketing age was 43 days and bedding consisted of dried coffee husks in its first time of use. Ventilation rates were calculated with the metabolic carbon dioxide mass balance method. Values of fNH3 were 0.32 ± 0.10 and 0.27 ± 0.07 g bird-1 d-1 for the MVB and NVB, respectively, and are in agreement to what was presented in other studies performed under similar conditions. The fNH3 estimated on yearly basis was 58 g bird-place-1 year-1. It was concluded that the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Emission factor; Inventory; Ventilation rate; Tropical conditions. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014001100013 Registros recuperados: 3 Primeira ... 1 ... Última

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