Design and analysis of a transcritical R-744 bottle cooler.
Author(s) : CECCHINATO L., CORRADI M., FORNASIERI E., et al.
Summary
This paper presents a project to develop a R-744 commercial single door bottle cooler that is cost competitive and matches the performance of typical cost optimised R-404A system. A prototype was developed with components easily available on the market; this system consists of a single stage reciprocating hermetic compressor, conventional fin and tube evaporator, wire-on-tube gas cooler and a capillary tube throttling device, externally brazed to the suction line. The energy performance of the CO2 system under steady-state and cyclic operations was investigated and compared with the one of the conventional refrigerants. A methodology to design properly the capillary tube and to optimize the combination of capillary tube and refrigerant charge is also presented. This methodology puts a special focus on the discharge pressure profile versus the theoretical optimum discharge pressure.
Details
- Original title: Design and analysis of a transcritical R-744 bottle cooler.
- Record ID : 2008-2136
- Languages: English
- Source: Technological innovations in air-conditioning and refrigeration industry + CD-ROM.
- Publication date: 2007/06/08
Links
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Indexing
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Themes:
CO2;
Supermarkets, display cabinets - Keywords: Refrigerating system; Display cabinet; Design; Performance; Expérimentation; Transcritical cycle; CO2
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Design and experimental analysis of a carbon di...
- Author(s) : BERNABEI M., CECCHINATO L., CHIARELLO M., et al.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
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A study on carbon dioxide cycle architectures f...
- Author(s) : MONTAGNER G. P., MELO C.
- Date : 2014/06
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 42
- Formats : PDF
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Transcritical CO2 system in a small supermarket.
- Author(s) : MADSEN K. B.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
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A study on CO2 cycle architectures for light co...
- Author(s) : MONTAGNER G. P., MELO C.
- Date : 2013/04/02
- Languages : English
- Source: 2nd IIR International Conference on Sustainability and the Cold Chain. Proceedings: Paris, France, April 2-4, 2013.
- Formats : PDF
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Field measurements of supermarket refrigeration...
- Author(s) : SEWALHA S., KARAMPOUR M., ROGSTAM J.
- Date : 2015/08/05
- Languages : English
- Source: Applied Thermal Engineering - vol. 87
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