Vera Gütle

Due to the necessary decarbonization of the heat supply, heat pumps are becoming increasingly important for domestic hot water preparation. However, the relatively high requirements for hot water preparation and distribution temperatures for hygiene reasons often cannot be met with current heat pump concepts without the additional use of electric… ...

The importance of hydraulic balancing of heat distribution systems for energy-efficient building operation and resident comfort has long been recognized. Nevertheless, it can be stated that there is a lack of expertise and still far too often insufficient implementations occur in practice. Companies have also noticed this gap and have developed new… ...

Introduced in 2002, the "SPF Solar Glass Certificate" has become a widely used tool for quality assurance in the solar thermal industry worldwide and was extended to solar glass for PV modules in 2012. As part of the certification, the influence of transmission, its change due to solarization and the incidence angle modifier (IAM) on the… ...

Thermal stratification is an important parameter in the energy evaluation of storage tanks. The electrical energy consumption in a heat pump system can be up to 40 % lower with a well stratified storage tank than with a poorly stratified thermal energy storage.
In the StorEx project, SPF introduced stratification efficiency as a key performance… ...

In the project HpCosy the basics for a decentralized brine-water heat pump system for flats in
multi-family houses will be developed and investigated. This "Comfort System" includes the functions heating, cooling and domestic hot water preparation, whereby the latter can optionally be controlled with the consideration of availability of own… ...