400 - High Solar Fractions For Buildings' Heating And Cooling, Through An Innovative Seasonal Storage Design In Southern European Countries

摘要

The market of the solar combi-systems (providing heat for both domestic hot water - DHW - and space heating) is continuously growing, especially in central and northern Europe. In Europe in 2006 the market share of combi-systems had been about 5% [Weiss et al, 2008]. In Austria, solar combi-systems had a market share of almost 40% until 2007 [ESTIF, 2007] while in Germany, the market share of combi-systems has reached 45% in 2007 [Koldehoff, 2008]. Moreover, the use of solar assisted air conditioning (SAC) is reaching the market level, with significant growth in European commercial and residential buildings [Balaras et al, 2007]. Recently, various small scale SAC systems appeared on the market [SOLAIR, 2008]. The combination of solar heating and cooling seems very promising and can increase the total solar fraction~1.