Avaliação de diferentes materiais de cobertura, inclinações e exposições de telhado na temperatura interna em modelos reduzidos de instalações zootécnicas
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Data
2010-11-17
Autores
Melo, Thiago Vasconcelos [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
O presente trabalho foi desenvolvido junto aos Departamentos de Engenharia Rural e Morfologia e Fisiologia Animal da FCAV/Unesp, Jaboticabal, SP. Teve como objetivo verificar a influencia da inclinação e exposição norte e sul com a telha de telha cerâmica, aço galvanizado e fibrocimento sobre a temperatura interna de modelos reduzidos de instalações zootécnica. Para o desenvolvimento do projeto de pesquisa foram utilizados 48 modelos reduzidos nas dimensões de 1,00 x 1,00 x 0,50 metros. A cobertura foi de uma água, dispostos nas exposições Norte-Sul, laterais e piso de compensado de madeira, sendo 24 modelos na exposição norte e 24 na sul. Foram utilizadas na cobertura, telha de cerâmica, aço galvanizado e fibrocimento. As inclinações variaram de 20, 30, 40 e 50% para telha de cerâmica e 10, 30, 40 e 50% para as demais. No interior dos modelos foram realizadas leituras de temperatura, de hora em hora durante um ano, pelo sistema de aquisição de dados Marca Campbell Scientific-Ínc. Externamente foram medidas e registradas a temperatura do ar, radiação solar global incidente, precipitação, velocidade e umidade relativa do ar pela estação meteorológica do departamento de Ciências Exatas da FCAV/Unesp, Jaboticabal, SP. Os resultados obtidos foram avaliados num modelo linear geral no esquema fatorial aninhado 3X4X2, em que foram considerados: tipo de telha, grau de inclinação e exposição, onde os efeitos de cobertura e exposição foram aninhados no fator inclinação. As médias obtidas foram comparadas pelo teste de Tukey a 5% de probabilidade. Foram analisadas a temperatura interna, calor retido e diferença de temperatura máxima interna – temperatura máxima externa. Após analise dos dados observa-se que com o aumento da inclinação na exposição sul, houve decréscimo da temperatura interna no interior do modelo nas coordenadas geográficas da cidade de Jaboticabal
The present study was developed in Departamentos de Engenharia Rural e Morfologia e Fisiologia Animal da FCAV/Unesp, Jaboticabal, SP with the objective of evaluating different covering materials, inclinations and exhibitions of the roof in inside temperature in reduced models in zootechnics installations. For the development of the research project 48 built reduced models of wood were used with dimensions of 1,00 x 1,00 x 0,50 meters. The covering was one water, lateral and wood floor, disposed in the exhibitions North-south, being 24 prototypes in the north exhibition and 24 in the south. Were used in the covering roofs of ceramic type, galvanized steel and asbestos. The inclinations varied of 20, 30, 40 and 50% for ceramic tile and 10, 30, 40 and 50% for the others and with two repetitions for inclination. Inside the reduced models temperature readings were accomplished, of hour in hour during one year, for the system of acquisition of Data Logger Campbell Scientific-Ínc and externally the temperature of the air, incident radiation global solar, precipitation, speed and relative humidity of the air were measured. The results obtained during the experimental period of one year were appraised statistically for the statistical package SAS in the factorial outline, where three factors were considered: tile type, inclination degree and exhibition. The obtained averages were compared through the test of Tukey to 5% of probability. After analyzing the data we found that with increasing slope, there was a decrease in inside temperature in the cover prototypes, therefore, using steeper slopes with 50% of tipping ceramics and asbestos, with greater coverage on display South, we have lower temperatures in poultry houses in the geographic coordinates of the city of Jaboticabal
The present study was developed in Departamentos de Engenharia Rural e Morfologia e Fisiologia Animal da FCAV/Unesp, Jaboticabal, SP with the objective of evaluating different covering materials, inclinations and exhibitions of the roof in inside temperature in reduced models in zootechnics installations. For the development of the research project 48 built reduced models of wood were used with dimensions of 1,00 x 1,00 x 0,50 meters. The covering was one water, lateral and wood floor, disposed in the exhibitions North-south, being 24 prototypes in the north exhibition and 24 in the south. Were used in the covering roofs of ceramic type, galvanized steel and asbestos. The inclinations varied of 20, 30, 40 and 50% for ceramic tile and 10, 30, 40 and 50% for the others and with two repetitions for inclination. Inside the reduced models temperature readings were accomplished, of hour in hour during one year, for the system of acquisition of Data Logger Campbell Scientific-Ínc and externally the temperature of the air, incident radiation global solar, precipitation, speed and relative humidity of the air were measured. The results obtained during the experimental period of one year were appraised statistically for the statistical package SAS in the factorial outline, where three factors were considered: tile type, inclination degree and exhibition. The obtained averages were compared through the test of Tukey to 5% of probability. After analyzing the data we found that with increasing slope, there was a decrease in inside temperature in the cover prototypes, therefore, using steeper slopes with 50% of tipping ceramics and asbestos, with greater coverage on display South, we have lower temperatures in poultry houses in the geographic coordinates of the city of Jaboticabal
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Palavras-chave
Industria avicola, Temperatura, Ambiência, Galpão, Poultry house, Temperature, environment, Poultry
Como citar
MELO, Thiago Vasconcelos. Avaliação de diferentes materiais de cobertura, inclinações e exposições de telhado na temperatura interna em modelos reduzidos de instalações zootécnicas. 2010. ix, 61 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2010.