Completed Annexes

HPT TCP has been active since 1978, with a lot of collaborative research, development, demonstration and deployment projects. We call these projects "Annexes" and they are conducted on a combination of cost sharing and task-sharing basis by the participating countries. Here you can read about the finalized projects, from 1989 to this present date.


Annex

23

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Heat Pump Systems for Single-Room Applications

While heat pumps are sold in increasing numbers in many regions, installations are restricted to certain building types. In particular, relatively few heat pumps are inst…

Annex

22

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Compression Systems with Natural Working Fluids

Most of the substances being considered to replace chlorofluorocarbons (CFCs) and HCFCs as working fluids in heat pumping (heat pump, air conditioning and refrigeration) …

Annex

21

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Global Environmental Benefits of Industrial Heat Pumps

By upgrading heat at a lower temperature, industrial heat pumps use their high-energy efficiency to meet heating needs in industry, therefore helping to reduce the consum…

Annex

20

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Working Fluid Safety

The need to find alternatives to the CFCs and HCFCs used in today’s heating, air-conditioning and refrigeration equipment has led to intensified interest in the safety as…

Annex

18

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Thermophysical Properties of Environmentally Acceptable Refrigerants

The phasing out of CFCs and HCFCs has led to a global quest to find alternative refrigerants for heat pumping equipment. Therefore the IEA Heat Pump Programme started thi…