Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio
Küçük Resim Yok
Tarih
2008
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The performance of the ejector refrigeration system using ejectors with cylindrical mixing chamber is studied at operating conditions with choking in the mixing chamber. The condenser pressure is chosen so that the secondary flow choking can occur even in the ejector with the smallest area ratio. In the present study, the performance of the constructed system is determined by using six configurations of ejector and R-123 as working fluid in the system. The study is performed over a range of the ejector area ratio from 6.5 to 11.5 at the compression ratio 2.47. In the studied range, the experimental coefficient of performance of the system rises from 0.29 to 0.41, as the optimum generator temperature increases from 83 to 103 degrees C. Similar results were also found in the parametric study when the efficiencies of the nozzle and diffuser are taken as 0.90. (C) 2008 Elsevier Ltd and IIR. All rights reserved.
Açıklama
Anahtar Kelimeler
Refrigeration system, Ejector system, Experiment, Optimization, Performance, Parameter, Geometry
Kaynak
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
31
Sayı
7
