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Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling.
Author(s) : NEBOT-ANDRÉS L., CATALÁN-GIL J., SÁNCHEZ D., CALLEJA-ANTA D., CABELLO R., LLOPIS R.
Type of article: IJR article
Summary
Subcooling methods for transcritical CO2 plants are being studied in order to improve their behavior. Among them, the Integrated Mechanical Subcooling system is one of the most promising owing that performs with high efficiency and it is a total-CO2 system.
This work presents the experimental determination of the optimum working conditions of a transcritical CO2 plant working with an integrated mechanical subcooling system. The plant was tested at different pressure and subcooling conditions in order to optimize the COP of the plant and determine the optimal conditions for three ambient temperatures 25.0 °C, 30.4 °C and 35.1 °C and evaporation levels between −15.6 °C and −4.1 °C.
Optimum operating conditions were determined and two correlations are proposed to determine the optimal pressure and subcooling as function the gas-cooler outlet temperature and the evaporation level.
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Details
- Original title: Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling.
- Record ID : 30027434
- Languages: English
- Subject: Developing country
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 113
- Publication date: 2020/05
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2020.02.012
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Indexing
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Themes:
CO2;
Compression systems - Keywords: CO2; Subcooling; Performance; Transcritical cycle; Expérimentation; Semihermetic compressor; R744; Zeotropic mixture
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