期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 106, 期 -, 页码 338-349出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2019.07.003
关键词
Computational fluid dynamics; Forced-air cooling; Apple; Cooling performance; Energy consumption; Package design
资金
- Flanders Innovation & Entrepreneurship [VLAIO 120745]
- South African Research Chairs Initiative of the Department of Science and Technology
- South African Postharvest Innovation Program (PHI)
- HortgroScience
- Swiss National Science Foundation SNSF [200021_169372]
- National Research Foundation
- Swiss National Science Foundation (SNF) [200021_169372] Funding Source: Swiss National Science Foundation (SNF)
Single-use ventilated corrugated cardboard boxes are commonly used in the postharvest apple cold chain but pose significant challenges for optimising cooling efficiency while reducing energy use. The cooling performance of typical corrugated boxes (standard type 'Mk4') was compared to that of an alternative reusable plastic crate (RPC). Cooling rates, temperature uniformity, energy consumption and fruit quality were evaluated. Using a computational analysis, trade-offs between cooling rates and energy consumption were captured. Experiments were conducted in similar conditions to successfully verify computations and gain additional insights. A mismatch between the position of vent holes and fruit-supporting trays created isolated regions for the airflow, resulting in large temperature heterogeneities in the standard Mk4 box. Both cooling uniformity and energy use were found to be the best for RPCs, but the high airflow rates might cause chilling injury to the apples. Compared to corrugated boxes, RPCs showed promising features towards more energy-efficient cold chains. (C) 2019 Elsevier Ltd and IIR. All rights reserved.
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