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| Ferreira,Marcos D.; Cortez,Luís A. B.; Honório,Sylvio L.; Tavares,Marcelo. |
| As perdas na pós-colheita para tomate de mesa são altas, e esta pesquisa teve como objetivo quantificá-las, avaliando-se o efeito do manuseio e transporte na qualidade física dos frutos, cultivar Romana, nas etapas de colheita, pesagem e transporte para o galpão de beneficiamento. Tomates foram colhidos em caixas plásticas de colheita, transportados para um ponto de pesagem e, em seguida, enviados para um galpão de beneficiamento e classificação. Utilizaram-se como testemunha frutos retirados diretamente da planta. Os parâmetros observados foram: perda de peso e incidência de danos físicos originados em cada etapa, avaliando-se a aparência externa dos frutos após armazenamento por 21 dias. Observou-se aumento progressivo na perda de peso e incidência de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicun esculentum; Pós-colheita; Danos físicos. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162006000100034 |
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| Jordan,Rodrigo A.; Cortez,Luís A. B.; Barbin,Douglas F.; Lucas Junior,Jorge de. |
| ABSTRACT Besides cold for milk cooling, dairy facilities need to produce hot water for cleaning of tools and equipment. Overall, ohmic heating has been used in dairy farms, increasing power consumption and manufacturing costs. Therefore, as an alternative to reduce power consumption, this paper proposed a water-water heat pumping for simultaneous cold and heat generations. Accordingly, operational tests were performed with three heat-pump prototypes designed for dairy farms, in both laboratory and field levels. At laboratory, tests were carried out using electricity and CNG to define a coefficient of performance (COP). Biogas tests were performed in the field to measure its consumption. CNG average consumption was of 1.118 m3/ h, while biogas consume was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermal power; Thermal-accumulation; Cooling; Heating. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000500779 |
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| Jordan,Rodrigo A.; Cortez,Luís A. B.; Silveira Jr.,Vivaldo; Cavalcanti- Mata,Mário E. R. M.; Oliveira,Fellipe D. de. |
| ABSTRACT Based on mass and energy balance equations and data collected in specialized bibliographies, it was proposed a methodology for modeling of an ice bank for thermal storage of energy at low temperature to be used in milk cooling. The data obtained by the equations arrangement were used in the design and installation of a real system, which was tested to collect data and to compare it with the estimated. The data obtained in terms of prediction of ice formation, temperature of the ice bank, water and capacity of the selected refrigeration system prove the adequacy of the equations arrangement, showing that it can be used as a tool for sizing solid ice bank in smooth pipe coils, with good approximation. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milk cooling; Modeling; Thermal storage. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000400510 |
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