Document IIF
Pertes de partialisation lors du fonctionnement “tout-ou-rien” des systèmes frigorifiques eau-eau /pompes à chaleur.
Partialization losses of ON/OFF operation of water-to-water refrigeration/heat-pump units.
Auteurs : CORBERÁN J. M., DONADELLO D., MARTÍNEZ-GALVÁN I., et al.
Type d'article : Article, Article de la RIF
Résumé
This paper presents the results of an experimental campaign for the characterization of the dynamic behavior of a water-to-water refrigeration/heat-pump unit under ON/OFF operation. The unit was previously tested at different water inlet temperatures under steady state conditions, and a very good agreement was found between the instantaneous dynamic performance of the heat pump and the corresponding quasi-steady state operation. In parallel, a series of tests were carried out to quantify the coefficient of performance (COP) degradation as a function of the load ratio, and a simple formula for the Part Load Factor is presented. Results lead to the conclusion that the only non-negligible factor in the COP degradation is the stand-by electrical consumption during the OFF period, especially at low load ratios. Finally, it is concluded that the minimization of the stand-by consumption is a key point for the future improvement of the seasonal performance of water-to-water systems.
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Détails
- Titre original : Partialization losses of ON/OFF operation of water-to-water refrigeration/heat-pump units.
- Identifiant de la fiche : 30009837
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 8
- Date d'édition : 12/2013
Liens
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Indexation
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Partialization losses of on/off operation of wa...
- Auteurs : CORBERÁN J. M., DONADELLO D., MARTÍNEZ-GALVÁN I., et al.
- Date : 21/08/2011
- Langues : Anglais
- Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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Sizing strategy of on–off and modulating heat p...
- Auteurs : BAGARELLA G., LAZZARIN R., NORO M.
- Date : 05/2016
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
- Formats : PDF
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New methodology of characterization of seasonal...
- Auteurs : MAATOUK C., ZOUGHAIB A., CLODIC D.
- Date : 12/07/2010
- Langues : Anglais
- Source : 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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- Auteurs : ZAJONC D., FLÜCK S., LUCAS E. J., LEHR A., WELLIG B.
- Date : 31/08/2021
- Langues : Anglais
- Source : 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
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EFFICIENCY OF AMMONIA-WATER HEAT PUMPS.
- Auteurs : KOUREMENOS D. A., ROGDAKIS E.
- Date : 1984
- Langues : Anglais
- Source : VDI-Ber. - n. 539
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