Résumé
A defrosting control method based on the optimal average performance of an air source heat pump (ASHP) unit is presented. The deterioration point of an ASHP unit is selected as the defrosting initiation criterion. To verify the feasibility and applicability of the defrosting control method based on the optimal average performance, a test apparatus was established in the sychrometric rooms and the defrosting characteristics of an ASHP unit was investigated experimentally for four: different defrosting initiation criteria under different frosting conditions. The frost thickness on the fins, the transient input power and heating capacity were measured. Based on the experimental results, the total heating capacity, total power consumption in the whole frosting/ defrosting cycles and average COP of the ASHP unit were analyzed. The experimental results indicated that when the deterioration point of the ASHP unit is selected as the defrosting initiation criterion, the average COP in the whole frosting/ defrosting cycles is the maximum, which confirmed that this defrosting initiation criterion is feasible and can be used for the optimal defrosting control of an ASHP unit.
Documents disponibles
Format PDF
Pages : 17-21
Disponible
Prix public
20 €
Prix membre*
15 €
* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)
Détails
- Titre original : [In Chinese. / En chinois.]
- Identifiant de la fiche : 30019657
- Langues : Chinois
- Source : Journal of Refrigeration - vol. 37 - n. 169
- Date d'édition : 06/2016
- DOI : http://dx.doi.org/10.3969/j.issn.0253-4339.2016.03.017
Liens
Voir d'autres articles du même numéro (5)
Voir la source
-
Less pumping means cooler ground loops.
- Auteurs : KAVANAUGH S.
- Date : 07/2011
- Langues : Anglais
- Source : ASHRAE Journal - vol. 53 - n. 7
Voir la fiche
-
Air source heat pump systems: control strategy ...
- Auteurs : BEE E., PRADA A., BAGGIO P.
- Date : 09/07/2018
- Langues : Anglais
- Source : 2018 Purdue Conferences. 5th International High Performance Buildings Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Analysis of the refrigerant‐side temperature pr...
- Auteurs : SIERES J., ORTEGA I., CERDEIRA F., SANTOS J. M., ALVAREZ E.
- Date : 21/08/2023
- Langues : Anglais
- Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Formats : PDF
Voir la fiche
-
Reversely-variable circuitry for finned-tube he...
- Auteurs : WANG F., ZHAO R., MA C., HUANG D., QU Z.
- Date : 10/2022
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 142
- Formats : PDF
Voir la fiche
-
Integrated control system with DC inverter tech...
- Auteurs : MUVEGI W., LAMANNA B.
- Date : 05/04/2011
- Langues : Anglais
- Source : Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
- Formats : PDF
Voir la fiche