Summary
In order to make R744 two-temperature supermarket refrigeration system operate effectively in countries with higher ambient temperatures such as China, a conventional booster refrigeration system was modified by adding an ejector into the system. Simulations were performed to investigate and optimize the new system under different ambient temperatures and compared with the conventional booster refrigeration system. Results showed that the compressor's work of the booster refrigeration system with an ejector can be reduced by more than 10% compared to the conventional booster refrigeration system at , resulting in an increase of COP more than 11%. However, it is worse than the conventional booster refrigeration system when the ambient temperature is low. In order to solve this problem, a further improved booster refrigeration system with an ejector by adding different control strategies was proposed, which can ensure that the system operates with a high COP at all ambient temperatures.
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Details
- Original title: Simulation and optimization of a R744 two- temperature supermarket refrigeration system with an ejector.
- Record ID : 30023939
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 90
- Publication date: 2018/06
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2018.04.007
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A novel IMS-ejector based supermarket CO2<...
- Author(s) : SENGUPTA A., DASGUPTA M. S.
- Date : 2023/04/27
- Languages : English
- Source: 10th IIR Conference on Ammonia and CO2 Refrigeration Technologies.
- Formats : PDF
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Experimental evaluation of a multi-ejector tran...
- Author(s) : SINGH S., HAFNER A., BANASIAK K., et al.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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Thermodynamic Analysis of CO2 Transcritical Boo...
- Author(s) : PUROHIT N., GUPTA D. K., DASGUPTA M. S.
- Date : 2017/10
- Languages : English
- Source: Air Conditioning and Refrigeration Journal - vol. 20 - n. 4
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Untersuchung von CO2-Ejektoren beim Einsatz in ...
- Author(s) : FIORENZANO de ALBUQUERQUE R., TISCHENDORF C., LEMKE N., et al.
- Date : 2010/06
- Languages : German
- Source: KI Kälte Luft Klimatechnik - vol. 46 - n. 6
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Integrated R744 ejector supported parallel comp...
- Author(s) : PARDIÑAS A. A., HAFNER A., BANASIAK K.
- Date : 2017/05/11
- Languages : English
- Source: 7th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 11-13, 2017.
- Formats : PDF
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