IIR document
Study on efficiency improvement of packaged air conditioners for year round cooling (effects of allowable minimum compression ratio and expansion valve capacity).
Author(s) : UEKUSA T., WARAGAI S., NAKAO M.
Summary
Focusing on air conditioners used for year-round cooling, high-efficiency operation at times of low outdoor air temperature can be achieved by lowering the condensing pressure and operating at a low compression ratio. A year-round cooling air conditioner was constructed, and a performance test showed that the COP of the compression cycle could exceed 10 at maximum for an outdoor air temperature of 0 °C. This air conditioner was deployed for one year in Tokyo in the same cooling-load environment: power consumption decreased by about 40% over the year.
Available documents
Format PDF
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: Study on efficiency improvement of packaged air conditioners for year round cooling (effects of allowable minimum compression ratio and expansion valve capacity).
- Record ID : 2000-1536
- Languages: English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Publication date: 1999/09/19
Links
See other articles from the proceedings (447)
See the conference proceedings
Indexing
-
Themes:
Other air-conditioning equipment;
Air conditioning in laboratories and industry;
Other energy-saving and energy-recovery systems - Keywords: Winter; Telecommunication; Enhancement; Air conditioner; Temperature; Performance; Optimization; Expansion valve; Thermodynamic cycle; Air conditioning; Condensation
-
Study on efficiency improvement of year-round c...
- Author(s) : UEKUSA T., YANAGI M., WARAGAI S.
- Date : 2003/08/17
- Languages : English
- Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
- Formats : PDF
View record
-
Development of an integrated air conditioner wi...
- Author(s) : HAN L., SHI W., WANG B., et al.
- Date : 2013/01
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 1
- Formats : PDF
View record
-
Energy consumption model of integrated air cond...
- Author(s) : HAN L., SHI W., WANG B., et al.
- Date : 2014/04
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 40
- Formats : PDF
View record
-
A 95% more efficient telecom cooling system.
- Author(s) : TÖBBEN D., GRÄPPI M.
- Date : 2007/06/10
- Languages : English
- Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
View record
-
Energy-saving potential study on telecommunicat...
- Author(s) : ZHOU F., CHEN J., MA G. Y., et al.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 2nd International High Performance Buildings Conference at Purdue.
- Formats : PDF
View record