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Press release
26.04.2018  |  9669x
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Utilising potential: converting waste energy into power

Cooperation project partners develop ORC research power generator

There are many weapons in the fight against climate change. One is the use of renewable energy. Another important element is the recovery of waste energy which is released by countless industrial processes. Unfortunately, it is often just lost into the atmosphere …

“In many industrial activities process gas is lost into the atmosphere. The original plan was to find a way to utilise the potential of these gases”, explains DEPRAG Chief Operating Officer Dr.-Ing. Rolf Pfeiffer. The recovery of energy from process gases in not a new idea. “What is new, however, is that with our development, using a small, compact, decentralised energy recovery system, even small amounts of residual energy in the power range of 5 to 200 kilowatts can be converted into power”. The DEPRAG GET turbine generator can be used anywhere that surplus energy is created by industrial processes.

The University of Bayreuth, the East Bavarian Technical College Amberg-Weiden (OTH) and the company DEPRAG SCHULZ GMBH & CO. began a joint research project in 2011 supported by the Bavarian Research Foundation. The aim of the research was to find a use for surplus energy. The project partners have succeeded in efficiently converting existing waste heat into electrical energy

If the surplus energy potential is in the form of heat instead of pressure, it can only be utilised via a special closed loop method – for example an ORC process (Organic Rankine Cycle). On this basis the three project partners developed an ORC test facility which has been installed and tested at the Centre for Energy Technologies (ZET) at the University of Bayreuth. A second research project (2015-2016), in collaboration with the Centre of Excellence for combined heat and power generation (KoKWK)), enabled the partners to optimise the system as well as the turbine generator supplied by DEPRAG, so that efficiency was again significantly increased.

Together with the other cooperation partners, DEPRAG organised a customer information event at the University of Bayreuth in order to present the research results. On the day, participants had a unique opportunity to experience the ORC power generator live, become familiar with the processes and find out more about the integrated GET turbine generator.

The DEPRAG GET turbine generator

A compact unit consisting of a micro expansion turbine with electric generator generating power from gas. Without its electric control cabinet, the turbine generator is not much larger than a shoebox and can be installed wherever gas is transferred from a higher to a lower pressure level. The pressure energy released by this shift is only utilised in the rarest cases and therefore valuable energy potential is being wasted.

More information: DEPRAG SCHULZ GMBH u. CO.

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