TY - JOUR
T1 - Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system
AU - Navarro-Esbrí, J.
AU - Mendoza-Miranda, J. M.
AU - Mota-Babiloni, A.
AU - Barragán-Cervera, A.
AU - Belman-Flores, J. M.
N1 - Funding Information:
This study was sponsored by Fundació Caixa Castelló-Bancaixa under the project P11B2010-24 “Aplicación de nuevos refrigerantes con bajo potencial de efecto invernadero en sistemas de frío comercial y climatización”.
PY - 2013/5
Y1 - 2013/5
N2 - This paper presents an experimental analysis of a vapor compression system using R1234yf as a drop-in replacement for R134a. In this work, we compare the energy performance of both refrigerants, R134a and R1234yf, in a monitored vapor compression system under a wide range of working conditions. So, the experimental tests are carried out varying the condensing temperature, the evaporating temperature, the superheating degree, the compressor speed, and the internal heat exchanger use. Comparisons are made taking refrigerant R134a as baseline, and the results show that the cooling capacity obtained with R1234yf in a R134a vapor compression system is about 9% lower than that obtained with R134a in the studied range. Also, when using R1234yf, the system shows values of COP about 19% lower than those obtained using R134a, being the minor difference for higher condensing temperatures. Finally, using an internal heat exchanger these differences in the energy performance are significantly reduced.
AB - This paper presents an experimental analysis of a vapor compression system using R1234yf as a drop-in replacement for R134a. In this work, we compare the energy performance of both refrigerants, R134a and R1234yf, in a monitored vapor compression system under a wide range of working conditions. So, the experimental tests are carried out varying the condensing temperature, the evaporating temperature, the superheating degree, the compressor speed, and the internal heat exchanger use. Comparisons are made taking refrigerant R134a as baseline, and the results show that the cooling capacity obtained with R1234yf in a R134a vapor compression system is about 9% lower than that obtained with R134a in the studied range. Also, when using R1234yf, the system shows values of COP about 19% lower than those obtained using R134a, being the minor difference for higher condensing temperatures. Finally, using an internal heat exchanger these differences in the energy performance are significantly reduced.
KW - Drop-in
KW - Internal heat exchanger
KW - Low GWP
KW - R1234yf
KW - R134a
KW - Vapor compression system
UR - http://www.scopus.com/inward/record.url?scp=84875225036&partnerID=8YFLogxK
U2 - 10.1016/j.ijrefrig.2012.12.014
DO - 10.1016/j.ijrefrig.2012.12.014
M3 - Artículo
SN - 0140-7007
VL - 36
SP - 870
EP - 880
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
IS - 3
ER -