Journal
APPLIED ENERGY
Volume 112, Issue -, Pages 1376-1382Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2013.01.071
Keywords
Phase change material; Chilled food cabinet; Cold storage; Supercooling phenomenon; Nucleate agent
Categories
Funding
- Engineering and Physical Sciences Research Council [EP/K011820/1, EP/H004181/1] Funding Source: researchfish
- EPSRC [EP/H004181/1, EP/K011820/1] Funding Source: UKRI
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There is increasing interest in using phase change materials (PCMs) to store energy within refrigeration equipment. The main purpose is to increase the thermal capacity of the equipment and maintain product temperature within safe limits during frequent door openings, on-off cycling of the compressor and mains power failure. This paper considers candidate phase change materials for application in chilled food refrigeration cabinets for product temperature range between 0 degrees C and +5 degrees C. The results showed that paraffin products exhibited negligible supercooling but have low latent heat compared to water based products which have higher latent heat but exhibit a greater degree of supercooling. The addition of appropriate quantities of nucleate agent (AgI) can reduce supercooling significantly, making water based products suitable for use as PCMs for cold storage in chilled food cabinets. (C) 2013 Elsevier Ltd. All rights reserved.
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