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Co-generation Systems with Combustion Engines and Waste Heat Use by Two-Stage Organic-Rankine-Cycle


Veröffentlichungsart
Begutachtete Publikation

Fakultät/Einrichtung
Natur und Technik

Verfasser
Smolen, Slawomir, Prof. Dr.-Ing.

Autor_innen, Jahr, Titel
J.S. Szmyd, J. Spalek, T.A. Kowalewski,
Co-generation Systems with Combustion Engines and Waste Heat Use by Two-Stage Organic-Rankine-Cycle
July 2009

Weitere Informationen
www.exhft-7.agh.edu.pl,
Krakow, Poland
ISBN 978-83-7464-235-4


Co-generation Systems with Combustion Engines and Waste Heat Use by Two-Stage Organic-Rankine-Cycle
The possible optimization of co-generation systems with combustion engines by the means of the ORC-Cycle for power generation from waste heat has been presented. The practical basis for this concept was the operational power and heat performance analysis of co-generation units with diesel engines using gaseous and liquid fuels (especially biogas installations). The key issue of the presented publication is simulation and thermodynamic analysis of the original concept with two-stage ORC process for waste heat utilisation as possible optimization measure. Due to process-related factors, the waste heat use in the exhaust gas heat exchanger and from the engine cooling system is performed at different temperature levels and is realised in the ORC cycle in two stages by the means of a micro-turbine and a screw engine. The special calculation procedure has been elaborated and the representative results are presented.

The next phase of the project will involve a practical analysis of the plant concept, e.g. the options regarding different expansion machines, regulation concepts, real losses, and other aspects.

 

 

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