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Type: Artigo de periódico
Title: Effect of container opening area on air distribution during precooling of horticultural produce
Author: de Castro, LR
Vigneault, C
Cortez, LAB
Abstract: An existing research tool was used to investigate air distribution in horticultural produce containers during forced-air precooling. This tool consisted of an instrumented produce simulator that allowed indirect measurement of surrounding air velocity at different positions inside a package. Using this new research tool for different forced-air cooling conditions, the surrounding air velocity was inferred as a function of the simulator's location in reference to the air entrance. The air pathway during the cooling process was investigated for three total package-opening areas (0.67%, 2%, 6%) at airflow rates ranging from 0.125 to 3.9 L s(-1) kg(-1). The air approach velocity at each position inside a package rose as the opening area increased More vented area also enhanced the cooling efficiency. However increasing the airflow rate resulted in a greater air pressure drop. Opening areas more than 6% of the package surface should be tested to achieve the maximum necessary vented configuration that meets the structure constraints and generates air distribution and cooling efficiency not significantly different from fully open.
Subject: air approach velocity
cooling rate
cooling uniformity
forced air package
produce simulator
Country: EUA
Editor: Amer Soc Agricultural Engineers
Citation: Transactions Of The Asabe. Amer Soc Agricultural Engineers, v. 47, n. 6, n. 2033, n. 2038, 2004.
Rights: aberto
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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