Documents

DOI

High temperature Organic Rankine Cycles power systems of low power capacity, i.e. 3-50 kWe, are receiving recognition for distributed and mobile energy generation applications. For this type of power plants, it is customary to adopt a radial-turbine as prime mover, essentially for their ability to cope with very large volumetric flow ratio with limited fluid-dynamic penalty. To date, the design of such turbines is based on design guidelines and loss models developed mainly for turbo-chargers, subsequently adapted by means of non-validated computational fluid-dynamic calculations. In the attempt to provide data sets for CFD validation and calibration of loss models, a mini-ORC radial inflow turbine delivering 10kW of mechanical power will be realized and tested in the Propulsion and Power Laboratory of TU-Delft. The fluid dynamic design and characterization of the machine is detailed in this paper. According to available models, the results indicate that the optimal layout of mini-ORC turbines can substantially differ from that of radial-inflow turbines utilized in more traditional applications, strengthening the need of experimental campaigns to support the conception of new design practices.

Original languageEnglish
Title of host publication4th International Seminar on ORC Power Systems
Subtitle of host publicationMilano, Italy
EditorsV. Dossena, A. Guardone, M. Astolfi
PublisherElsevier
Pages1141-1148
Number of pages8
Volume129
DOIs
Publication statusPublished - 2017

Publication series

NameEnergy Procedia
PublisherElsevier
Volume129
ISSN (Print)1876-6102

    Research areas

  • CFD, Loss Breakdown, mini-ORC turbines, radial-inflow turbine

ID: 31753156