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Title: EXERGETIC ANALYSIS OF A VAPOR INJECTION COMPRESSION HEAT PUMP
EXERGETIC ANALYSIS OF A VAPOR INJECTION COMPRESSION HEAT PUMP

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Claudia Ionita; Alexandru Dobrovicescu; Daniel Dima
10.5593/sgem2022/4.1/s17.09
10.5593/sgem2022/4.1
1314-2704
978-619-7603-44-6
English
22
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Renewable Energy Sources and Clean Technologies
The paper presents an exergy analysis of a heat pump with a steam injection. Different refrigerants as R290, R152A and R1234yf are considered. Constructive schemes such as two-stage heat pumps or cascade couplings are known and used to reduce the temperature at the compressor discharge level, but the presence of two or more compressors increases the cost of the initial investment of the equipment. This paper presents the design of a steam injection heat pump that has the advantage of a simple construction and can be applied in a wide range.
For each apparatus, corresponding to its utility and operating field, the exergetic balance states the “product” and “fuel”. The work analyzes the conduct of the system at the variation of the operating and constructive parameters. The exergetic technique succeeds in pointing out for every dissipative zone the exergy destruction and losses.
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[2] Yikai W, Zuliang Y, Xiang Y, Yulong S and Feng C 2021 Energy, exergy and exergoeconomic evaluation of the transcritical air source CO 2 heat pump with internal heat exchanger for space heating International Journal of Refrigeration 130 pp14-26
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[8] Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16 April 2014 on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006
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[10] https://www.linde-gas.ro/shop/ro/ro-ig/gaze-imbuteliate/freoni/agent-frigorificr1234yf-but-56kg-p5400106
[11] https://www.bitzer.de/shared_media/html/a-540/en-GB/160871307185801867.html
[12] Choudhari CS and Sapali SN 2017 Performance Investigation of Natural Refrigerant R290 as a Substitute to R22 in Refrigeration Systems Energy Proceed 109 pp. 346-352
[13] Yohan L and Dongsoo J 2012 A brief performance comparison of R1234yf and R134a in a bench tester for automotive applications Applied Thermal Engineering 35 pp. 240-242
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[15] https://www2.le.ac.uk/ offices / itservices / ithelp / my-computer / programs / ess- 10-2 Engineering Equation Solver (verses 10.2 - 2017
conference
https://doi.org/10.5593/sgem2022/4.1/s17.09
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
65-72
04 - 10 July, 2022
website
8579
Heat pump, Exergy analysis, Exergy destruction, Fuel and Product