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ThEt
Thermodynamics and Energy Technology

Organic Rankine Cycle (ORC)

The chair’s “Energy Technology” division is concerned with optimising Organic Rankine Cycle (ORC) processes. It is a sensible strategy to use low boiling, mostly organic, working fluids in thermal energy processes. Exhaust heat from a lower temperature plateau is converted into electrical energy which in turn increases the process’ overall energy efficiency. The chair’s laboratory has a testing facility in which two ORC cycles are coupled via a cascade construction. In addition, all required fluid property data are generated both by simulation and experiment in house. The required “exhaust heat” of 200 kW at a temperature level up to 650 K is provided electrically. Both cycles produce up to 7.5 kW of power via two radial turbines. The testing facility is designed to vary all operating parameters by large margins, thus allowing to test a variety of operating fluids and thereby evaluating the results calculated by simulations beforehand. In order to optimise the energy recovery all critical components can be modified easily. The chair’s division is organised in a ZIM project with the objective to design and construct an ORC plant using the exhaust heat from a cogeneration unit with an electrical energy output of around 600 kW.

Contact: Prof. Dr.-Ing. habil. Jadran Vrabec

Thermodynamics and
Energy Technology, University of Paderborn

Project coordinator:
Duration: August 2014 - August 2016
Research Projects

SkaSim
Scalable HPC-Software

itsowl-Heatpipe
Innovation project

FORTISSIMO
EU-Project

Extreme Tropfen
DFG-Project

DiffKoeff
DFG-Project

DBU-PCM
Deutsche Bundesstiftung Umwelt

Refrigeration
several projects

Hybrid Data Sets-2
DFG-Project

ORC
ZIM Zentrales Innovationsprogramm Mittelstand

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