In June 2006, the IEA Energy in Buildings and Communities Programme (EBC, formerly ECBCS) Executive Committee decided to launch the three-year working phase of the Annex 48 on Heat pumping and reversible air conditioning.
Contents
- Co Operating Agents
- Background
- Project Description
- Specific goals
- Subtask 1 Analysis of building heating and cooling demands and of equipment performances
- Subtask 2 Design
- Subtask 3 Global performance evaluation and commissioning methods
- Subtask 4 Case studies and demonstrations
- Subtask 5 Dissemination
- Participating countries and organizations
- References
Co-Operating Agents
Background
Substituting a heat pump to a boiler may save more than 50% of primary energy, if electricity is produced by a modern gas-steam power plant (and even more if a part of that electricity is produced from a renewable source). “Heat Pumping” is probably today one of the quickest and safest solutions to save energy and to reduce CO2 emission. Most of air-conditioned commercial buildings offer attractive retrofit opportunities, because:
The retrofit of an existing building and, even more, the design of a new one should take all possibilities of heat pumping into consideration, in such a way to make air conditioning as “reversible” as possible. Different techniques are already available, but a recent survey of monitoring results established in Germany made still appear a lot of faults, lacks of optimisation and surprisingly low COP (coefficient of performance) after, at least, one year of operation. It appears that the many mistakes would not have been discovered without monitoring. It also appears that these mistakes and disappointing results are mainly due to a lack of good understanding of the dynamic behaviour of the systems at design stage, a lack of simulation work, a lack of instrumentation, for satisfactory commissioning, optimal control and fault detection.
Project Description
The aim of this project is to promote the most efficient combinations of heating and cooling techniques in air conditioning.
Specific goals
These goals will be achieved by performing five different subtasks, whose content is very briefly summarized hereunder:
Subtask 1: Analysis of building heating and cooling demands and of equipment performances
Subtask 2: Design
Subtask 3: Global performance evaluation and commissioning methods
Subtask 4: Case studies and demonstrations
Subtask 5: Dissemination
Participating countries and organizations
- Belgium: University of Liège(Thermodynamics Laboratory) and University of Leuven
- France: Armines (École nationale supérieure des mines de Paris), Greth, INES and ClimateMaster
- Germany: Fachhochschule of Nürnberg, TEB Gmbh KE and University of Stuttgart
- Italy: Polytechnic University of Turin
- Canada: Concordia University (Montréal)