In this paper the realistic behaviour and efficiency of heating systems were analysed, based on long term monitoring projects. Based on the measurements a boiler model was evaluated. Comparisons of measured and calculated fuel consumptions showed a good degree of similarity. With the boiler model, various simulations of solar heating systems were done for different hot water demands and collector sizes. The result shows that the potential of fuel reduction can be much higher than the solar gain of the solar thermal system. For some conditions the fuel reduction can be up to the double of the solar gain due to a strong increase of the system efficiency. As the monitored boilers were not older than 3 years, it can be assumed that the saving potential with older boilers could be even higher than calculated in this paper.
|Title of host publication||Proceedings of the 5th EuroSun 2004 : 14th International Sonnenforum|
|Place of Publication||Freiburg|
|Publication status||Published - 2004|
|Event||EuroSun 2004 - Freiburg, Germany|
Duration: 20 Jun 2004 → 24 Jun 2004
Conference number: 5
|Period||20/06/2004 → 24/06/2004|