NDLI: Thermoelectricity applied to the cryoconcentration of orange juice

Content Provider	IEEE Xplore Digital Library
Author	Sanz-Bobi, M.A. Palacios, R. Arenas, A.
Copyright Year	1996
Description	Author affiliation: Inst. de Investigacion Tecnologica, Univ. Ponificia Comillas, Madrid, Spain (Sanz-Bobi, M.A.)
Abstract	The high content of water in natural fruit juices suggests the reduction of their volume by its elimination. This is a concentration process for juices that saves space and reduces costs for storage, transport and handling. This paper describes the main features of a prototype of a "cryoconcentration cell" for obtaining concentrated orange juice. This development is being supported by a research project within the program of the CICYT, a Spanish Government Agency to promote R&D activities. The prototype proposes the use of the Peltier effect as an alternative to the traditional methods of cryoconcentration using the aforementioned conventional techniques. The cryoconcentration cell uses a set of thermoelectric elements to produce the cooling conditions able to convert the excess of water included in the juice into ice so that later it is possible to eliminate it and to concentrate the juice. The orange juice is the hot sink in our application. The heat extracted from the orange juice is transferred to water in circulation, which is the cool sink. A first prototype of this cell was constructed in aluminium. From this experience another prototype was constructed in copper which is an improvement over the first one. Both prototypes of cryoconcentration cells use 16 thermoelectric elements on both main sides of the recipient that temporarily contains the juice. A detailed description of the last prototype, its design and some initial results obtained are presented in this paper.
Starting Page	259
Ending Page	263
File Size	486634
Page Count	5
File Format	PDF
ISBN	0780332210
DOI	10.1109/ICT.1996.553314
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-03-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermoelectricity Prototypes Costs Cooling Ice Heat sinks Water heating Heat transfer Aluminum Copper
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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