4.3 Article

The Role of Dense Gas Dynamics on Organic Rankine Cycle Turbine Performance

Publisher

ASME
DOI: 10.1115/1.4024963

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Funding

  1. EPSRC [EP/J006394/1]
  2. GE Global Research
  3. Engineering and Physical Sciences Research Council [EP/J006394/1] Funding Source: researchfish
  4. EPSRC [EP/J006394/1] Funding Source: UKRI

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In this paper, we investigate the real gas flows which occur within organic Rankine cycle (ORC) turbines. A new method for the design of nozzles operating with dense gases is discussed, and applied to the case of a high pressure ratio turbine vane. A Navier-Stokes method, which uses equations of states for a variety of working fluids typical of ORC turbines, is then applied to the turbine vanes to determine the vane performance. The results suggest that the choice of working fluid has a significant influence on the turbine efficiency.

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