Global warming is a worldwide common theme. Due to the Regulation (EU) no. 517/2014, refrigerants with a GWP (Global Warming Potential) higher than 150 are not allowed from January 1st, 2015 in new domestic refrigerators. Thus, a replacement for HFC134a is needed. In this paper attention is devoted to the drop-in substitution of HFC134a with HFO refrigerant fluids in a domestic refrigerator. An experimental evaluation of the environmental impact in term of the greenhouse effect of the substitution of HFC 134a with HFOs has been reported. The greenhouse effect is accounted for the experimental evaluation of the LCCP (Life Cycle Climate Performance) index. The refrigerant fluids that have been tested as a drop-in are: pure HF01234yf, the mixture HF01234yf/HFC134a (90/10 % in weight), pure HF01234ze (E) and the mixture HF01234ze (E)/HFC134a (90/10 % in weight). The plant working with pure HFOs or with both mixtures achieves the same temperature levels of HFC134a in the freezer and the refrigerator cabinet The experimental results clearly show that the lower environmental impact in term of global warming can be achieved with both mixtures. The lower LCCP index can be obtained with HFC134a/HF01234yf (with a 17 % reduction respect to HFC 134a).
HFOs and their binary mixtures with HFC134a working as drop-in refrigerant in a household refrigerator: energy analysis and environmental impact assessment / Aprea, C.; Greco, A.; Maiorino, A.. - In: APPLIED THERMAL ENGINEERING. - ISSN 1359-4311. - 141:(2018), pp. 226-233. [10.1016/j.applthermaleng.2018.02.072]
HFOs and their binary mixtures with HFC134a working as drop-in refrigerant in a household refrigerator: energy analysis and environmental impact assessment
Greco, A.
;
2018
Abstract
Global warming is a worldwide common theme. Due to the Regulation (EU) no. 517/2014, refrigerants with a GWP (Global Warming Potential) higher than 150 are not allowed from January 1st, 2015 in new domestic refrigerators. Thus, a replacement for HFC134a is needed. In this paper attention is devoted to the drop-in substitution of HFC134a with HFO refrigerant fluids in a domestic refrigerator. An experimental evaluation of the environmental impact in term of the greenhouse effect of the substitution of HFC 134a with HFOs has been reported. The greenhouse effect is accounted for the experimental evaluation of the LCCP (Life Cycle Climate Performance) index. The refrigerant fluids that have been tested as a drop-in are: pure HF01234yf, the mixture HF01234yf/HFC134a (90/10 % in weight), pure HF01234ze (E) and the mixture HF01234ze (E)/HFC134a (90/10 % in weight). The plant working with pure HFOs or with both mixtures achieves the same temperature levels of HFC134a in the freezer and the refrigerator cabinet The experimental results clearly show that the lower environmental impact in term of global warming can be achieved with both mixtures. The lower LCCP index can be obtained with HFC134a/HF01234yf (with a 17 % reduction respect to HFC 134a).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
