Share
IIR document
THE INFLUENCE OF THE EVAPORATOR FIN SPACING ON DEFROSTING CYCLES AND FRONT VELOCITY IN ELECTRICALLY DRIVEN AIR BASED HEAT PUMPS.
Author(s) : NESJE O. M., BYGGSTOYL B.
Summary
THE AUTHORS PRESENT A 200 KILOWATT AIR-WATER HEAT PUMP. THEY CONSIDER A FLOODED EVAPORATOR WITH FINNED TUBES. THE RELATIONSHIPS BETWEEN FIN SPACING, SIZE, AIR FLOW AND COP ARE STUDIED. INCREASING AIR VELOCITY MAKES IT POSSIBLE TO DECREASE THE EVAPORATOR SIZE. THIS RESULTS IN AN INCREASE IN OPERATING COSTS AND A DECREASE IN INVESTMENT COSTS. THE FACTORS REQUIRED FOR AN ECONOMIC EVALUATION OF EVAPORATOR SIZE ARE ICSE. THE EFFECT OF FIN SPACING DURING DEFROSTING IS ALSO STUDIED. DEFROSTING METHODS USING THE LEAST ENERGY ARE PRESENTED. THE ANALYSIS IS BASED ON TEST RESULTS FOR AIR COOLERS WITH FIN SPACINGS OF 3.5 AND 8 MM.
Available documents
Format PDF
Pages: 417-422
This document is to be digitised and will be available within 10 working days
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: THE INFLUENCE OF THE EVAPORATOR FIN SPACING ON DEFROSTING CYCLES AND FRONT VELOCITY IN ELECTRICALLY DRIVEN AIR BASED HEAT PUMPS.
- Record ID : 1988-1620
- Languages: English
- Source: Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
- Publication date: 1987/08/24
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles from the proceedings (509)
See the conference proceedings
Indexing
- Themes: Heat pumps techniques
- Keywords: High capacity; Frosting; Finned tube; Fin; Calculation; Air-water; Heat pump; Performance; Optimization; Evaporator; Defrosting
-
Frost/defrost performance of a three-row fin st...
- Author(s) : WATTERS R. J., O'NEAL D. L., YANG J.
- Date : 2002
- Languages : English
- Source: ASHRAE Transactions. 2002 annual Meeting, Honolulu, Hawaii. Volume 108, part 2 + CD-ROM.
View record
-
EXHAUST AIR HEAT PUMPS IN THEORY AND PRACTICE.
- Author(s) : ENSTROM H., KENNE H.
- Date : 1987/08/24
- Languages : English
- Source: Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
- Formats : PDF
View record
-
Dynamic characteristics of an air-to-water heat...
- Author(s) : HUANG D., YUAN X. L.
- 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
-
Large tonnage groundwater heat pumps: experienc...
- Author(s) : RAFFERTY K.D.
- Date : 1992
- Languages : English
- Source: ASHRAE Transactions 1992. Part 2.
View record
-
ENERGY-EFFICIENT FUNCTIONING OF A NEW DESIGN AB...
- Author(s) : CRUSE R., KOPP A., ENGMANN K. H.
- Date : 1984/09/03
- Languages : English
- Source: Advances in refrigeration and heat pump technology achieved by the application of micro-electronics and the control of systems by micro-electronic devices.
- Formats : PDF
View record