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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.

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Zu sehen ist ein Verdampfer ORC-Prozess mit Abgaswärmezufuhr aus einem Gasmotor
Projektstatus: Phase 4
EnEff:Wärme - Forschung für energieeffiziente Wärme- und Kältenetze

Field testing of ORC processes

ORC processes can be used to convert previously unharnessed waste heat into valuable effective energy in the form of electricity. The goal of this project is to use ORC processes to generate between 20 and 120 kWel of additional electricity from the heat contained in exhaust gases and cooling water from motor CHP plants and, in doing so, to improve the energy balance of these motors.

2-generation function pattern 50 kW
Projektstatus: Phase 3
EnEff:Wärme - Forschung für energieeffiziente Wärme- und Kältenetze

Absorption cooling system uses district heating and solar low temperature sources

Researchers from TU Berlin and ZAE Bayern have developed an absorption cooling system with a cooling capacity of 50 kW and optimised it under operating conditions with Vattenfall Europe Wärme. A functional model of a 160-kW system is to be tested and both system types are to be prepared for market launch by 2012.

Projektstatus: Phase 1
EnEff:Wärme - Forschung für energieeffiziente Wärme- und Kältenetze

Market viability of high-efficiency CHP plants – LowEx district heating

The demonstration project for utilising green energy for supplying district heating in the town of Halle is contributing to securing the market share of CHP systems in the energy mix while simultaneously further increasing the energy productivity when converting fossil fuel energy in Combine-Cycle power plants (CCPP).

Projektstatus: Phase 3
EnEff:Wärme - Forschung für energieeffiziente Wärme- und Kältenetze

ORC steam expansion engine utilises waste heat for the highly efficient generation of electricity

A newly developed steam expansion engine uses low-temperature heat with ORC technology. As part of a field test it is intended to show how four ORC systems can utilise waste heat flows to generate electricity in a highly efficient manner.

Projektstatus: Phase 3
EnEff:Wärme - Forschung für energieeffiziente Wärme- und Kältenetze

Absorption chiller for low-temperature district heating - Bad Blankenburg

The aim of the research project is to develop, optimise and produce an absorption chiller for the decentralised generation of cooling energy and air-conditioning. The intention is to use new substance pairs and low-temperature drive sources – in this case using heat from the Bad Blankenburg district heating network.