Summary
The basic simulation research on the performance of two-stage compression cycle with two different temperature evaporators using CO2 has carried out with variable operating condition. The performance characteristics and comparison of the two-stage CO2 cycle with outdoor temperature, middle pressure, 1st- and 2nd-stage EEV opening have analyzed in order to improve the understanding for thermodynamic CO2 cycle characteristics and provide the basic performance data for developing high performance system. As a result, the cooling COP increases as the middle pressure rises until 4.1 MPa and it improves with the increase of 1st-stage EEV opening. However, the cooling COP decreases when the outdoor temperature and 2nd-stage EEV opening increases for given operating conditions.
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Details
- Original title: Estudio de un ciclo de CO2 de compresón de doble etapa con dos evaporadores a temperatura diferente.
- Record ID : 30002667
- Languages: Spanish
- Source: Frío Calor Aire acondicionado - vol. 39 - n. 438
- Publication date: 2011/07
Links
- See translations: The study of a two-stage compression CO2 cycle with two different temperature evaporators.
See other articles in this issue (4)
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Indexing
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Themes:
Thermodynamics and changes of state;
Compression systems;
CO2 - Keywords: Comparison; Temperature; Two-stage system; Compression system; Evaporator; COP; Refrigerant; CO2
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The study of a two-stage compression CO2 cycle ...
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- Date : 2010/04/12
- Languages : English
- Formats : PDF
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Comparison and analysis of CO2 transcritical cy...
- Author(s) : FU L., LI Q., XU R.
- Date : 2007/09
- Languages : Chinese
- Source: Refrigeration - vol. 26 - n. 3
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Influence factors in performance of the two-sta...
- Author(s) : ALMEIDA I. M. G., BARBOSA C. R. F.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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Second-law-based thermodynamic analysis of two-...
- Author(s) : ZUBAIR S. M., YAQUB M., KHAN S. H.
- Date : 1996/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 8
- Formats : PDF
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Using fundamental equations to describe basic p...
- Author(s) : JAKOBSEN A., RASMUSSEN B. D.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
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