| Titre : | Performance of virtually non-flammable azeotropic HFO1234yf/HFC134a mixture for HFC134a applications (2013) |
| Titre original : | Performance du mélange azéotropique non inflammable HFO1234yf/HFC134a pour les applications du HFC134a |
| Auteurs : | Yohan, Lee, Auteur ; Dong Gyu Kang, Auteur ; Dongsoo Jung, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 36 N° 4, Juin 2013) |
| Article en page(s) : | pp. 1203–1207 |
| Note générale : | Refrigeration |
| Langues : | Anglais |
| Tags : | Alternative refrigerant ; HFO1234yf ; HFC134a ; HFO1234yf/HFC134a mixture ; Mobile air-conditioner |
| Résumé : | In this study, ‘drop-in’ performance of HFC134a, HFO1234yf and HFO1234yf/HFC134a mixture at three compositions of 5%, 10%, and 15% HFC134a is measured in a heat pump bench tester under summer and winter conditions. Test results show that the COP, capacity, discharge temperature of HFO1234yf and HFO1234yf/HFC134a mixture are similar to those of HFC134a. For HFO1234yf/HFC134a mixture, flammability decreases as more HFC134a is added and at compositions of more than 10% of HFC134a, the mixture becomes non-flammable. The amount of charge for HFO1234yf and HFO1234yf/HFC134a mixture is up to 11% lower than that of HFC134a. Since HFO1234yf/HFC134a mixture with 10–11% HFC134a is virtually non-flammable and azeotropic and has no ODP and GWP of less than 150 meeting the requirement of European mobile air-conditioner directive, it can be used as an environmentally friendly solution for various HFC134a applications including mobile air-conditioners with minor modifications. |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700713000388 |
