OPTIMIZATION OF SOLAR THERMAL COMBI-SYSTEMS FOR DOMESTIC HOT WATER AND SPACE HEATING

摘要

The aim of this paper is to give an overview on solar thermal combi-systems, which are typically used in Germany, based on a benchmark test of these systems carried out in 2010. In the second part the potential and need to optimize these systems to further increase their acceptance in the market are described. Solar thermal systems for domestic hot water heating and space heating support, so called combi-systems, are very common in Germany, Austria, and other central European countries. In Germany, about 50% of the newly installed solar thermal systems are combi-systems, which typically cover 20% to 30% of the domestic hot water and heating demand of a well-insulated one-family home.