The optimum gas cooler pressure for transcritical CO 2 refrigeration cycle: A new correlation Kri̇ti̇k nokta üstü çevri̇mli̇ CO 2 soǧutma si̇stemleri̇nde opti̇mum gaz soǧutucu basinci: Yeni̇ bi̇r korelâsyon

ÖZGÜR A. E., BAYRAKÇI H. C., AKDAĞ A. E.

Isi Bilimi Ve Teknigi Dergisi/ Journal of Thermal Science and Technology, cilt.29, sa.2, ss.23-28, 2009 (SCI-Expanded, Scopus, TRDizin) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 2
  • Basım Tarihi: 2009
  • Dergi Adı: Isi Bilimi Ve Teknigi Dergisi/ Journal of Thermal Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.23-28
  • Anahtar Kelimeler: CO 2, Correlation, Gas cooler, Optimum, Pressure
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Evet

Özet

The gas cooler pressure is one of the most important design parameter for energy and exergy efficiencies of a transcritical CO 2 (R744) cooling system. In this study, the optimum gas cooler pressure is obtained as a function of evaporation temperature of CO 2 and outlet temperature of CO 2 following the gas cooler. The presented correlation is valid for -25 °C < Tb < 0 °C and 30 °C < T gs,ç < 55 °C. The obtained correlation is presented with a three dimensional graphic for these limits. The evaporation temperature interval is wider than the recent literature works, so this is the importance of this correlation. However a comparison is presented between correlations presented a literature work and presented with this study. ©2008 TIBTD Printed in Turkey.