Thermodynamic analysis of a new dual evaporator CO₂ transcritical refrigeration cycle

• Autorzy: Abdellaoui E. Y. , Kairouani L. K.

Identyfikatory

DOI

10.1515/aoter-2017-0003

• Języki publikacji: EN

Abstrakty

EN

In this work, a new dual-evaporator CO₂ transcritical refrigeration cycle with two ejectors is proposed. In this new system, we proposed to recover the lost energy of condensation coming off the gas cooler and operate the refrigeration cycle ejector free and enhance the system performance and obtain dual-temperature refrigeration simultaneously. The effects of some key parameters on the thermodynamic performance of the modified cycle are theoretically investigated based on energetic and exergetic analysis. The simulation results for the modified cycle indicate more effective system performance improvement than the single ejector in the CO₂ vapor compression cycle using ejector as an expander ranging up to 46%. The exergetic analysis for this system is made. The performance characteristics of the proposed cycle show its promise in dual-evaporator refrigeration system.

Słowa kluczowe

EN

CO2; energy; refrigeration; ejector; exergy

PL

CO2; energia; chłodzenie; ejektor; egzergia

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2017
• Tom: Vol. 38, no. 1
• Strony: 39--62
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wz.

Twórcy

autor

Abdellaoui E. Y.

• National Engineering School of Tunis ENIT, BP 37 1002 Runis, Tunisia

autor

Kairouani L. K.

• National Engineering School of Tunis ENIT, BP 37 1002 Runis, Tunisia

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