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Through undertaking monitoring and measurement of the energy use in 42 AC systems and their components in 8 EU Member States, HARMONAC has been able to provide an evidence based report on the Energy Conservation Opportunities (ECOs) generally available in Air Conditioning systems. These in-depth Case Studies have then compared with ECOs found from Field Trials of HARMONAC AC system inspection procedures which are based on EN15240 - the CEN Standard for AC Inspection. This comparison has enabled conclusions to be reached about how many of the ECOs that are available would be able to be identified and implemented in EU Member States as a result of the EPBD Inspection process. The project has also produced tools for use in the Inspection process, and a Teaching Package to assist in the Training of Inspectors.

An analysis of the ventilation effectiveness measured on a prototype system for local air-conditioning named PERMICS (Personal Microclimate System) was made based on simultaneous measurements of velocity field and of tracer gas concentration using the decay method. A new parameter based on a relative decrease of tracer gas concentration in the first minute of system operation dC(1) was introduced. The newly defined parameter has been verified by simulation results from commercial computational fluid dynamics (CFD) software. The usefulness of the parameter is the possibility to make quick measurements of the local efficiency of personalized ventilation systems. Analizirali smo učinkovitost prezračevanja na prototipu sistema za lokalno klimatizacijo PERMICS (Personal Microclimate System) z uporabo sočasnih meritev hitrostnega polja ter polja koncentracij sledilnega plina z uporabo metode zmanjšanja koncentracije sledilnega plina. Pri tem je bil vpeljan in predstavljen nov parameter dC(1), ki temelji na relativnem zmanjšanju koncentracije sledilnega plina v prvi minuti delovanja sistema. Novo definirani parameter je overjen z rezultati opravljenih simulacij s tržnim paketom za računalnisko dinamiko tekočin (CFD).Uporabnost parametra dC(1) je v možnosti hitre izvedbe meritev lokalne učinkovitosti na sistemih lokalnega prezračevanja in klimatizacije.