| Titre : | Oil type influence on the optimal charge and performance of a propane chiller (2011) |
| Titre original : | L'influence du type d'huile sur la charge optimale et la performance d'un refroidisseur au propane |
| Auteurs : | Israel Martínez-Galván, Auteur ; José Gonzálvez-Maciá, Auteur ; José-M. Corberán, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 34 N° 4, Juin 2011) |
| Article en page(s) : | pp. 1000-1007 |
| Note générale : | Génie Mécanique |
| Langues : | Anglais |
| Index. décimale : | 621.5 (Energie pneumatique. Machinerie et outils. Réfrigération) |
| Tags : | Propane Water chiller Oil Refrigerating system Refrigerant Charge |
| Résumé : | The paper presents the experimental results of a charge optimization study of a water-to-water chiller with two different oils: Mineral and POE. The employed chiller is a prototype which works with propane as refrigerant and provides for a cooling capacity of approximately 16 kW. A complete charge optimization study was performed for two different oils: mineral ISO-VG 68 and POE ISO-VG 22. The study covered a wide range of variation of condensation temperatures, all around the typical operating conditions for AC applications. The obtained performance and compressor efficiencies are studied and discussed to explain the observed differences due to the oil type. The main conclusions are that the optimal charge is strongly different, depending on the solubility of the refrigerant into the oil, and that the POE oil seems to lead to better unit performance. |
| DEWEY : | 621.5 |
| ISSN : | 0140-7007 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700711000259 |
