The three concepts were designed for various building types informed by the German housing associations participating in the project. The heating load of the building types varies from 23 to 93kW 6. Low-charge, in-unit installation: This concept sees heat pumps installed within individual apartments, making it ideal for retrofitting old buildings. The system draws heat from sources such as geothermal or solar thermal energy, air collectors and low temperature heat grids, with the heat stored in a water tank.
Centralized basement installation: This solution targets larger buildings with centralized heating systems installed in the basement. Possible heat sources include district heating, low-temperature networks or geothermal energy, which is hydraulically connected like the low-charge in-unit design concept.
Centralized outdoor installation: This concept is suitable for both old and new buildings and is designed to offer a heat capacity of 10β80kW 2. Final phase : Fraunhofer ISE is focused on testing and optimizing the propane-based heat pump systems to ensure they meet performance and safety targets. Katharina Morawietz, Heat and Cooling Technologies. Remember me. Log in. Lost your password? Partners Marketplace News Events About.
Advertise Your Products. Photo credit: Guido Kirsch. Initial implementation concepts, which are designed to replace gas and oil heating systems, were shown at Chillventa A laboratory tested demonstrator required only g of R, reducing the risk of flammability while enabling installation in confined spaces where heat is needed, like kitchens or bathrooms.
The system achieves a heating output of 6kW 1. Development efforts are ongoing to enhance system effciency. The prototype, which has already been built, provides The heat pump uses g of R, with optimization steps planned to reduce this to g. Efficiency improvements focusing on control technology adjustments are underway.
