| Titre : | Cycling losses in refrigeration equipment: An experimental evaluation (2014) |
| Titre original : | Pertes lors du cyclage dans les équipements frigorifiques: une évaluation expérimentale |
| Auteurs : | Giacomo Bagarella, Auteur ; Renato M. Lazzarin, Auteur ; Biagio Lamanna, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 36 N° 8, Décembre 2013) |
| Article en page(s) : | pp. 2111–2118 |
| Note générale : | Refrigeration |
| Langues : | Anglais |
| Tags : | Cycling losses ; on–off ; modulation ; refrigeration ; thermostatic expansion valve ; electronic Expansion Valve |
| Résumé : |
Cycling losses may be defined as those inefficiencies that reduce the performances of units during the transient period. They may be quantified by comparing the Energy Efficiency Ratio (EER) of a cycling unit and the EER of the same unit working continuously.
The on-off control is the most widespread strategy for modulating; therefore, a reliable evaluation of cycling losses is fundamental to assess the EER of the system. The mentioned losses have been experimentally evaluated on a test rig, and logged data demonstrate a loss up to 13% with respect to steady operations when the load factor is lower than 10% and a Thermostatic Expansion Valve (TEV) is used. The insertion of a solenoid valve in series with the TEV can reduce the losses but the best results are obtained by using the Electronic Expansion Valve (EEV) instead of the TEV. |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700713001989 |
