Share
IIR documentSummary
The frost grows on the surfaces of the condensate droplets which appear at the initial stage of the frosting process. If the initial condensate droplets can be removed before they froze, the process of the frost layer growth will be cut off. Therefore, this paper puts forward a novel defrosting method for air source heat pumps based on the evaporation of the initial condensate droplets by hot air. The evaporation efficiency of the condensate droplets on fins with different surface characteristics (hydrophilic, bare and superhydrophobic) are investigated and compared experimentally under different temperatures and velocities of hot air. The hydrophilic and superhydrophobic fins showed high evaporation efficiency. Moreover, most of the initial condensate droplets on superhydrophobic surface were instantaneously shed by the wind force. Experimental results indicate that the novel defrosting method is feasible with the advantages of low energy consumption and short time.
Available documents
Format PDF
Pages: 8 p.
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Feasibility study of a novel defrosting method for air source heat pumps.
- Record ID : 30015904
- Languages: English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Publication date: 2015/08/16
- DOI: http://dx.doi.org/10.18462/iir.icr.2015.0468
Links
See other articles from the proceedings (657)
See the conference proceedings
Indexing
-
Themes:
Heat pumps techniques;
Defrosting systems - Keywords: Frosting; Condensate; Air; Heat pump; Droplet; Expérimentation; Evaporation; Defrosting
-
The effects of surface characteristics on liqui...
- Author(s) : WANG F., LIANG C. H., YANG M. T., et al.
- Date : 2014/07/14
- Languages : English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Experimental investigation on dynamic defrostin...
- Author(s) : TAO X., GUO X., CHEN Y.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record
-
Experimental research on the reverse-cycle defr...
- Author(s) : XIAO H., ZHANG T., HUANG Y., et al.
- Date : 2006/05/21
- Languages : English
- Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
View record
-
Experimental study on a novel defrost cycle for...
- Author(s) : FU W., GUO X., TAO X.
- Date : 2009/05/20
- Languages : English
- Source: ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
- Formats : PDF
View record
-
Research in different regions on a defrost mode...
- Author(s) : HUANG Y., XIAO H., QIU W., et al.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record