The 8th IEA Heat Pump Conference
- Global Advances in Heat Pump
Technology, Applications and Markets
 

Volume 23, No.3/2005

 


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In this issue

This issue of the HPC Newsletter features the 8th IEA Heat Pump Conference, held in Las Vegas on May 30 – June 2. Read the overview article and the eleven session/workshop articles for a good view of what is going on worldwide in heat pumping technologies.
 

Heat Pump News

China-Japan joint meeting on heat pumps and thermal energy storage
China and Japan ha joint meeting in Beijing on 3-4th August, which provided an opportunity for scientists, engineers, decision-makers etc. to swap experience and make contacts. The meeting was a success, underlining how the two countries have much in common in this field. It is expected that one of the results will be a greater exchange of information between the two countries. (Page 7.)

 

Micro refrigeration
Scientists at Purdue University in the USA are developing new, micro-channel heat exchangers. They consist of a copper plate containing a large number of very small parallel ducts, only 231 micrometer wide and 713 micrometer long. (Page 9.)

 

Experience from using R723
A joint Danish/German project is investigating the use of ammonia and R273 in smaller refrigeration heat pumps. The conclusion is that further product development is needed before reliable and economically competitive systems based on R273 can be produced. (Page 12.)
 

Publications

Proceedings from the IEA heat pump conference
The Proceedings of the Internat-ional Energy Agency’s heat pump conference held in Las Vegas, USA, May 30 – June 2, 2005, can now be ordered from the Heat Pump Centre. They contain 128 papers on various topics related to heat pumping technologies, such as regional reports about market development in Asia, Europe and North America, environmental issues, ground-source heat pump systems, heat pumps in cooling, heating and power systems, refrigerants, advanced systems and components and much more. Order from www.heatpumpcentre.org.

 

    

Topical Articles

An overview of the 8th IEA Heat Pump Conference
This article provides an overview of the conference, focusing on highlights and some of the material presented. More detailed articles on each conference session and workshop can be found elsewhere in this Newsletter. (p. 14.)
 

Session 1 – Heat pumps - status and trends
This article is based on the regional reports, discussions with the authors and other sources. The focus here is on space heating applications, although air-conditioning, refrigeration and process heating are also important uses for heat pumps. (p. 24.)

Session 6 - Advanced Concepts - Components
The need to improve components has to be a continuing process, since no concept can work without components such as compressors, heat exchangers, piping and control equipment. (p. 30.)

 

Annex 28 - Comprehensive and uniform testing and calculation for heat pump systems

With an increasing number of different heating systems on the market, consumers need clear indi-cation of performance by energy- or eco-labelling at the point of sale to make rational purchase decisi-ons. Thus, manufacturers need guidelines defining which values of their components must be shown in order to calculate the seasonal performance factor (SPF) which is the basic information on a label.