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Provedor de dados:  Ciênc. Tecnol. Aliment.
País:  Brazil
Título:  Energy evaluation of an evaporative cooling system using water driven ejector
Autores:  Oliveira,Cíntia Carla Melgaço de
Gutierrez,Mirko Chavez
Silveira Junior,Vivaldo
Data:  2014-06-01
Ano:  2014
Palavras-chave:  Thermal storage
Evaporative cooling
Ejector
Resumo:  The search for efficient and accessible cooling systems has increased worldwide. This study aims to build and evaluate an evaporative cooling system using a water driven ejector, allowing it to be installed in places with plenty of water. The system was investigated varying the flow rate and temperature of the circulating water, temperature of the replacement water, and coefficient of performance. The best vacuum obtained was 8.5 kPa at nominal operating conditions of 4.1 ± 0.1 m³/h and 5 ± 0.5 ºC for the circulating water reaching the temperature of 9.7 ± 0.5 ºC. The pulse-like disturbance generated by replacing the cooling water at different periods of times did not result in significant affect vacuum destabilization and the temperature rise in the cooling tank. The coefficient of performance of the system at the highest thermal power of 92.27 W was 0.077, which was underestimated due to possible problems related to pump efficiency. The system evaluated under the conditions proposed can be very efficient for cooling fluids at higher temperatures, and it can be complementary to main refrigeration systems.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000200029
Editor:  Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Relação:  10.1590/fst.2014.0043
Formato:  text/html
Fonte:  Food Science and Technology v.34 n.2 2014
Direitos:  info:eu-repo/semantics/openAccess
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