Accumulation of cold: methods and modern technical solutions
- Authors: Filin S.O.1, Zakshevsky B.1
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Affiliations:
- Szczecin Technical University
- Issue: Vol 91, No 10 (2002)
- Pages: 10-14
- Section: Articles
- URL: https://journals.rcsi.science/0023-124X/article/view/105832
- DOI: https://doi.org/10.17816/RF105832
- ID: 105832
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Abstract
Spherical eutectic plates as used for cold accumulation in small and medium size refrigeration installation have been described. The methods for the intensification of heat exchange during freezing of the eutectic plates in an ice maker and during cooling of the object have been shown. The designs of refrigeration accumulating packs used in heat insulated containers are presented.
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##article.viewOnOriginalSite##About the authors
S. O. Filin
Szczecin Technical University
Author for correspondence.
Email: info@eco-vector.com
D. in Engineering
PolandB. Zakshevsky
Szczecin Technical University
Email: info@eco-vector.com
PhD in Engineering
PolandReferences
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Fig. 1. Ice formation dynamics in spherical zerators: а - calculated dependence of dimensionless coordinate on dimensionless time for different modified Stefan numbers, according to [5]; b - generalized empirical dependence of volume, fraction of unfrozen water on relative time for zerators 1 - of diameter 56...80 mm, according to [6]; 2 - of diameter 29 mm with internal fining in a steel rod, according to authors; •º- averaged data of experiment
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Fig. 2. Water-filled spherical zerotors with internal fins: a - according to the US patent No. 4205656; b - according to the GDR patent No. 264128; c - according to the Ukrainian patent No. 22422; 1 - plug; 2 - shell; 3 - liquid phase TAB; 4 - tubular rod-rib; 5 - magnetic rod-rib; 6 - antifreeze (in ice maker) or cooled medium (drink); 7 - poles of electromagnet; 8 - solid phase TAB; 9- loose metal ball
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Fig. 3. Freezing block of ice generator ЛНТ-0,6: a - external view; b - scheme; 1 - zerotor; 2 - double drum; 3 - thermoelectric module; 4 - flowing water heat exchanger; 5 - axis; 6 - ribbed cold heat exchanger; 7 - chamber wall; 8 - thermal insulation; A - antifreeze level
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Fig. 4. Batch cold accumulator for portable thermal containers
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