Technological aspects of refrigeration for retail sales.

[In Italian. / En italien.]

Type of article: Article

Summary

A survey on the main issues prompting technical innovation in refrigerating installations for retail sales. Problems arising from the phase-out of R502 can be solved by using either R22 (together with measures for lowering the discharge temperature of compressed gas) or a suitable blend of refrigerant (azeotropic or near-azeotropic) similar to R502. The search for higher energy efficiency has led to more sophisticated refrigerating circuits than those used in the past: two-stage cycles, cascade cycles with condensers cooled by water, in the low-stage, cycles with mechanical subcooling of condensate, capacity control by inverters or through multiple uneven compressors. E.F.

Details

Original title: [In Italian. / En italien.]
Record ID : 1993-1417
Languages: Italian
Source: Industria italiana del Freddo - vol. 46 - n. 4
Publication date: 1992/07
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: CFCs;
HCFCs;
Supermarkets, display cabinets;
Blends
Keywords: Retail trade; CFC; R502; R22; Substitute; Multistage system; Cascade system; Mixture; Refrigerating plant; Refrigerant; Compressor