Bernard Thissen © Energie Solaire SA 2005 SUSTAINABLE ROOM CONDITIONING WITH RADIANT PANELS

Bernard Thissen © Energie Solaire SA 2005 FULLY IRRIGATED FLAT HEAT EXCHANGERS Flow pattern Thermography

Bernard Thissen © Energie Solaire SA 2005 FLAT PLATE HEAT EXCHANGER APPLICATION RANGE  Thermal solar absorber for glazed flat plate collectors  Unglazed thermal solar collectors  The ES Solar Roof  Radiant panels for hydronic room conditioning  Miscellanuous

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS : SILENT ROOM CONDITIONING THROUGH RADIATION – HEAT & COOL The functions of ventilation and thermal conditioning are seperated  all-air systems Water as far more efficient thermal energy transport mode than air Considerable reduction of operating costs High fraction of heat transfer through radiation 65%, for a superior user’s comfort Low temperature gradient Low thermal inertia Use of heat sources at mild temperatures; ideal in combination with renewable energy sources (heat => solar energy, cold => ground water, …) Nespresso office building in Orbe (CH)

Bernard Thissen © Energie Solaire SA 2005 heat ENERGIE SOLAIRE RADIANT PANELS : EFFICIENCY CURVE cool Efficiency curve (W/m2) in function of x (K) = Tm – Ta Tm = panel average temperature; Ta = ambient temperature X (K) = Tm – Ta

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS – SUPERIOR COMFORT FOR OFFICE BUILDINGS UBS Bank (Freiburg – CH) Dynagest office building (Geneva - CH) UBS Dynagest

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS – CONTROL OF FAST CHANGING THERMAL LOADS CCIG (Geneva – CH) Conference room A.V.E. (Sion - CH) Centre de conference international Hence, radiant panels present no hasard for acoustic problems !

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS - PERFECTLY HYGIENIC ROOM CONDITIONING Hôpital Mont Godinne (Yvoir - Belgium)

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS - ACCURATE & SILENT TEMPERATURE CONTROL Laboratory of nanotechnology Lucent Technologies (Murray Hills - USA) EPFL – Electron microscope laboratory (Lausanne - CH)

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS - HEATING & COOLING OF DEFINED ZONES Centre d’entretien Hertz (Roissy – France) Alcan (Chippis – CH)

Bernard Thissen © Energie Solaire SA 2005 RADIANT PANELS – CLIMATE CONTROL FOR FOOD STORAGE Shopping centre COOP (Evolène –CH) Cheese cellar of Mondralèche (Ayent – CH)