Energy efficiency for the transcritical compression CO2 cycle with the use of the ejector as the first stage of the compression

Joachim Kozioł; Wiesław Gazda; Łukasz Wilzynski

doi:10.2478/v10173-010-0028-3

Energy efficiency for the transcritical compression CO₂ cycle with the use of the ejector as the first stage of the compression

Joachim Kozioł
, Wiesław Gazda
, Łukasz Wilzynski

Katedra Techniki Cieplnej (RIE/RIE6)

Silesian University of Technology

Wyniki badań: Wkład do czasopisma › Artykuł › recenzja

2 Cytowania z bazy Scopus

Abstrakt

An analysis of energy efficiency for transcritical compression unit with CO₂ (R744) as the refrigerant has been carried out using empirical operating characteristics for the two-phase ejector. The first stage of the refrigerant compression is carried out in the ejector. The criterion adopted for the estimation of energy efficiency for the cycle is the coefficient of performance COP. The analysis is performed for the heat pump and refrigeration systems. The results of COP for the systems with the ejector has been compared with the COP_L values for the single stage Linde cycle.

Język oryginału	angielski
Strony (od–do)	61-69
Liczba stron	9
Czasopismo	Archives of Thermodynamics
Tom	31
Numer wydania	4
Identyfikatory DOI	https://doi.org/10.2478/v10173-010-0028-3
Status publikacji	Opublikowano - 2010

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Obszary tematyczne ASJC Scopus

Ogólna fizyka i astronomia

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Cytowanie

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abstract = "An analysis of energy efficiency for transcritical compression unit with CO2 (R744) as the refrigerant has been carried out using empirical operating characteristics for the two-phase ejector. The first stage of the refrigerant compression is carried out in the ejector. The criterion adopted for the estimation of energy efficiency for the cycle is the coefficient of performance COP. The analysis is performed for the heat pump and refrigeration systems. The results of COP for the systems with the ejector has been compared with the COPL values for the single stage Linde cycle.",

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AU - Wilzynski, Łukasz

PY - 2010

Y1 - 2010

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AB - An analysis of energy efficiency for transcritical compression unit with CO2 (R744) as the refrigerant has been carried out using empirical operating characteristics for the two-phase ejector. The first stage of the refrigerant compression is carried out in the ejector. The criterion adopted for the estimation of energy efficiency for the cycle is the coefficient of performance COP. The analysis is performed for the heat pump and refrigeration systems. The results of COP for the systems with the ejector has been compared with the COPL values for the single stage Linde cycle.

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KW - Energy efficiency

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