IEA Annex 23: Multizone air flow and pollutant transport modelling. CETHIL's contribution to Annex 23.

CETHIL, Thermal Research Centre of the National Institute of Applied Sciences is a university laboratory associated with CNRS of 50 staff scientists and PhD students devoted to research in heat transfer. Since 1982 the group has been developing various contributions to multizone air flow modelling. CETHIL's contribution to Annex 23 will focus on three main axes: COMIS development, full scale experiments, error propagation.

IEA Annex 22: Design of energy-efficient communities.

In the last fifteen years "Local Energy Planning" (LEP), has been developed in several countries as a means of designing energy efficient communities. Discussions show that there are widely differing opinions on the definition of LEP, depending on national or local supply structures or legal responsibilities of local administrations. Theobjective of an LEP project is to develop a conception to find environmentally acceptable cost effectiveness solutions for the supply of a defined area with (low temperature heating) energy.

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