Résumé
With the proposal of the national "double carbon" strategic goal, air source heat pump (ASHP), as a highefficiency and energy-saving product, will be more and more widely used. Frosting is one of the main factors to reduce the heating capacity of ASHP in winter. The main technical solution for the problem is delaying frosting and high efficient defrosting. The research of domestic and foreign scholars on restraining frosting technologies and defrosting methods for ASHP are summarized. The researches show that changing the inlet air parameters and the structure of evaporators can realize restraining frosting without or only consuming less energy; electric heating defrosting needs consuming additional electrical energy; for small scale refrigeration and heat pump equipment, reverse-cycle defrosting and hot gas by-pass defrosting are most commonly used; a new defrosting method with small energy loss, continuous heating and non-stop defrosting needs to be developed in the future.
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Détails
- Titre original : Research progress of defrosting methods for air source heat pump.
- Identifiant de la fiche : 30033565
- Langues : Anglais
- Sujet : Technologie
- Source : 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
- Date d'édition : 05/2023
Liens
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Indexation
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Control strategy and experimental research on s...
- Auteurs : LIANG C., ZHANG X., LI X.
- Date : 21/08/2007
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
Voir la fiche
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AN ENERGY CONSERVATION EVALUATION OF TWO VARIAB...
- Auteurs : RETTBERG R. J.
- Date : 1981
- Langues : Anglais
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Experimental investigation on dynamic defrostin...
- Auteurs : TAO X., GUO X., CHEN Y.
- Date : 21/08/2007
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
Voir la fiche
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Evaluation of a gas engine-driven heat pump for...
- Auteurs : FUJITA T., MORIMOTO S., MITA N., et al.
- Date : 17/08/2003
- Langues : Anglais
- Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
- Formats : PDF
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Effect of fin staging on frost/defrost performa...
- Auteurs : WATTERS R. J., O'NEAL D. L., YANG J.
- Date : 24/06/2001
- Langues : Anglais
- Source : ASHRAE Transactions. 2001 annual Meeting, Cincinnati, Ohio. Volume 107, part 2 + CD-ROM.
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