Preliminary design of the two-phase ejector under constant area mixing assumption for 5 kW experimental system
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
EDP Sciences
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Ejector expansion refrigeration cycle is the modification of the vapour compression refrigeration cycle with the implementation of a two-phase ejector and a vapour-liquid separator to improve the cycle performance. In this study, main geometrical parameters of an ejector, i.e. diameters of the motive nozzle throat, motive nozzle outlet, suction nozzle outlet, and constant area mixing section are calculated in order to provide the preliminary design aspects at various operation conditions. The thermodynamic model of the ejector is established with reference to constant-area mixing assumption. The equations are solved in Matlab®. The environmentally-friendly refrigerants, R1234yf and R1234ze(E) from the hydrofluoroolefins (HFOs) and R134a which is about to be phased out by the F-gas Regulation are used in the analyses. When compared to the previous literature findings, the current research aims to compare the dimensions of a two-phase ejector to be used in an experimental system having 5 kW cooling capacity for these three refrigerants. © 2019 The Authors, published by EDP Sciences.
Açıklama
4th International Conference on Advances on Clean Energy Research, ICACER 2019 -- 5 April 2019 through 7 April 2019 -- 148862
Anahtar Kelimeler
Kaynak
E3S Web of Conferences
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
103
