Estudo do conforto termico, desempenho animal e racionalização de energia eletrica em uma instalação suinocola na região de Boituva-SP / Study of thermal comfort, animal perfomance and energy savings in a swine barn in Boituva - SP, Brazil

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

A great challenge in the swine production is the definition of a construction model capable of bringing a better thermal comfort to the animals. The greatest losses on production occur due very hot days and great thermal variation, which are the chief characteristics of the tropical weather. An alternative to minimize these losses is the use of diverse climate systems. Nevertheless, these equipment present variable implementation, functioning and maintenance costs that may interfere in the business lucrativity. The use of a control system, for instance, may reduce the equipment functioning costs. This work s main goal is the evaluation on performance of two different swine buildings, considering the animal performance, thermal comfort and electric energy consumption. Four rooms placed on two different swine structures were compared. It all happened on growing and finishing phases, in a commercial pigsty. These rooms are different under building and acclimatization systems (equipment?s age, numbers of fans and climate control). The parameters used for the comparison between the buildings were the animal performance, group sanitary condition, climate variables (temperature and humidity), enthalpy, thermal comfort index (THI), electric energy variables (electric energy consumption, power factor, demand) and energetic efficiency. The use of two new fans and evaporative cooling system, both with automatic startup, was able to bring a better thermal comfort to the animals, however this result was not enough for bringing higher production. The newer fans consume less electric energy than the older fans and showed the best power factor. The use of an evaporative cooling and only one fan, without automatic control, was able to bring the worst thermal comfort, the worst utilization electrical energy index and showed the best specific consumption. Therefore, we may conclude that the use of an automatic control system to the climate equipment is capable of improving the environmental conditions and the use of electric energy

ASSUNTO(S)

suino - confinamento industria animal pigs cultural eletric power conservation thermal industry animal industry animais domesticos - aspectos ambientais pig confinement suino - criação domestic energia eletrica - conservação animals conforto termico environmental aspects

ACESSO AO ARTIGO

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