IEA HPP Annex 32
Economical heating and cooling systems for low energy houses
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National contributions to IEA HPP Annex 32

The table gives an overview of the national contributions


  Project Task 1 Task 2 Task 3 Task 4
AT Development A/A-W CO2 heat pump System survey System analysis, Definition of prototype system, EES and TRNSYS simulations Lab - testing of prototype Results of Lab - testing of prototype
CA Low energy houses in the Canadian cold climate - optimum design and field testing Low energy houses: market, technologies and best practices in Canada Building and HVAC system assessment of EQUILIBRIUM low energy houses Building and HVAC system design/layout and one year field testing of the first EQUILIBRIUM low energy house. Interim report - December 2008 Building and HVAC system design/layout and one year field testing of the second EQUILIBRIUM low energy house. Design guidelines. Final report including both low energy houses - December 2009
CH Standard systems for heating and cooling with heat pumps
  • System survey
Summer 2007 System assessment simulation 2007/2008 Field test of 1 pilot plant Mid 2008 Design guidelines
DE Field testing "Heat pump efficiency" Market overview of compact units/ passive houses To be decided
  • Sept. 2006 Beginning of field testing 100 units
  • 2008 Other 35 units
Sept. 2007 Evaluation of the results of the field testing
Product/system optimisation
FR Economical air-to-air heat pump solutions for low energy houses Low energy houses: market, building technologies and regulations in France Comparison of system solutions for typical French low energy houses according to the BBC label Prototyping and field test of air-to-air heat pump solutions Documentation of results, best practice systems
JP Future heat pump for Japan System and demand survey Jan. 2007: Evaluation of systems for moderate climate zone (cold climate)
  • Start Winter 2006 Best practice system,
  • Another field test may start Jan. 2008
To be specified
NL Market development for low energy system layouts incl. heat pumps
  • State-of-the-art review of passive houses in the Netherlands
  • Systems/functions
  • Stakeholder involvement
  • Evaluation of existing systems
  • Investigation of systems with ECN
  • Evaluation of EPC calculation model
  • Simulation models of TNO
  • Monitoring System
  • Structure of the building process (Incl. Interviews)
  • Design handbook in form of a Matrix
  • Tools for Architects
NO Heat pump systems for Norwegian low energy houses System survey Evaluation of application of compact units in Norway (cold climate) Field test of novel layout of water-to-water heat pump with propane refrigerant installed in passive house Best practice
SE Develop heat pump systems for low energy houses
  • System survey
  • Market of heat pumps in Sweden
  • Evalution of existing field testing on existing systems
  • Product development
  • Theoretical concepts
  • Lab.-Testing/ prototyping of unit/system concepts
  • Lab.-Testing/ prototyping of unit/system concepts
  • Field testing of 1-2 systems
 Results of developed low energy systems
US Development of highly integrated multifunctional heat pump for Net Zero Energy houses (NZEH)
  • Survey of NZEH building market/systems Dec 2006
  • Data on ground coupling with selective water sorbent (SWS)
  • Simulation of NZEH house
  • HVAC load
  • CIHP optimised design
  • Market survey
  • Late 2007/ early2008
    Initiate field testing in NZEH
  • End 2009
    Result of field testing
 to be decided



last updated: 11.11.2008
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