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Efficiency mapping and loss analysis of ORC radial inflow turbines using an optimized mean-line design methodology

Author

Listed:
  • Yao, Yubo
  • Xu, Zhuoren
  • Fang, Song
  • Zhu, Shaolong
  • Iqbal, Qasir
  • Chen, Keping
  • Qiu, Limin
  • Wang, Kai

Abstract

Radial inflow turbines (RITs) are widely regarded as suitable expanders for small-to medium-scale organic Rankine cycle (ORC) systems due to their compact structure, high efficiency, and ability to accommodate large enthalpy drops in a single stage. While one-dimensional (1D) mean-line design methodologies and optimization techniques for ORC RITs have been extensively reported, a systematic understanding of how turbine efficiency, loss mechanisms, and geometric characteristics evolve across the broader design parameter space remains limited. In particular, performance maps consistent with mainstream enthalpy-drop-based design practice and accounting for real-gas effects are still scarce.

Suggested Citation

  • Yao, Yubo & Xu, Zhuoren & Fang, Song & Zhu, Shaolong & Iqbal, Qasir & Chen, Keping & Qiu, Limin & Wang, Kai, 2026. "Efficiency mapping and loss analysis of ORC radial inflow turbines using an optimized mean-line design methodology," Energy, Elsevier, vol. 347(C).
    • Handle: RePEc:eee:energy:v:347:y:2026:i:c:s0360544226004457
    DOI: 10.1016/j.energy.2026.140342
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    References listed on IDEAS

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