Efficient heat utilisation through new technologies
Thermally-driven micro cooling systems, latent heat and cold storage facilities, ORC technologies or thermally-driven heat pumps: The use of modern building technology and the development of distribution technology and system components represent important aspects of the EnEff:Wärme research initiative - just like intelligent control and measuring technologies. Together, they form a fundamentally new heat supply concept.
The operation of hospitals places considerable demands on the energy supply security, since the failure of necessary energy flows can have far-reaching implications. The use of waste heat from the exhaust gas and cooling water from gas engines, the incorporation of high-temperature heat from the fuel cell unit as well as cooling using absorption and vapour compression chillers provides a wide range of thermal energy that is utilised in combination with combined heat and power generation. The diversity of individual power systems and the provision of redundancy using an oil-fired boiler that can be immediately switched on in emergencies guarantee optimum supply security at Gießen University Hospital.
more details Energy plant at Gießen University Hospital
The aim of the project is to develop, optimise and construct a resorption chiller for decentralised cooling and ice generation. The use of an ammonia-water absorption mixture enables low-temperature sources to be efficiently used in the 70-90 °C range. The use of ice storage devices also enables delayed cooling as required.
more details ResoFreeze: Innovative plant concept for supplying cooling with CHCP
Micro-CHP systems are highly efficient plants that can supply buildings with electricity and heat. Optimising the method of operation can improve the economic efficiency. It is planned to use these systems in future as components in smart grids.
more details Optimising the operation of micro-CHP systems