Annex
30
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Retrofit Heat Pumps for Buildings
The market potential of heat pumps for retrofitting existing buildings is much larger than in new buildings. However, the heat pump market in existing buildings today is …
All Completed & Ongoing
Projects
Annex
29
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Ground-Source Heat Pumps Overcoming Market and Technical Barriers
The Annex investigated ideas and, depending on climate and application, identified systems that could improve performance and market attractiveness of ground-source heat …
Annex
28
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End date:
Test procedure and seasonal performance calculation for residential heat pumps with combined space and domestic hot water heating
The Annex investigated the testing of the most common combined heat pump systems with heating of domestic hot water by desuperheating subcooling of the condensate cascade…
Annex
27
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Selected Issues on CO2 as a Working Fluid in Compression Systems
This project focused solely on CO2 as a working fluid in compression systems. The main objective was to bring CO2 heat pumping technology closer to commercialisation, by…
Annex
26
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Advanced Supermarket Refrigeration / Heat Recovery Systems
This project investigated candidate advanced system design approaches to determine their potential for reducing refrigerant usage and energy consumption for both refriger…
Annex
25
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Year-Round Residential Space Conditioning Systems using Heat Pumps
This project aimed to define and demonstrate the technical feasibility of new packaged systems for year-round residential space conditioning using heat pumps. The work in…
Annex
24
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Absorption Machines for Heating and Cooling in Future Energy Systems
This project, which was concluded in June 1999, aimed to analyse the reasons behind the still limited implementation of absorption technology in heating and cooling. Part…
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…