Cristin-resultat-ID: 1925043
Sist endret: 10. august 2021, 13:11
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Equation-oriented methods for design optimization and performance analysis of radial inflow turbines

Bidragsytere:
  • Brede Hagen
  • Roberto Agromayor og
  • Petter Nekså

Tidsskrift

Energy
ISSN 0360-5442
e-ISSN 1873-6785
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Publisert online: 2021
Trykket: 2021
Volum: 237
Artikkelnummer: 121596
Open Access

Importkilder

Scopus-ID: 2-s2.0-85111608443

Beskrivelse Beskrivelse

Tittel

Equation-oriented methods for design optimization and performance analysis of radial inflow turbines

Sammendrag

This paper presents methods for design optimization and performance analysis of radial inflow turbines. Both methods are formulated in an equation-oriented manner and involve a single mathematical problem that is solved by an efficient, gradient-based optimization algorithm. In addition, the comparison of the model output with experimental data showed that the underlying mean-line flow model accurately predicts the variation of mass flow rate and isentropic efficiency as a function of the pressure ratio, rotational speed, and nozzle throat area. Moreover, the capabilities of the proposed methods were demonstrated by carrying out the preliminary design and performance prediction of the radial inflow turbine of an organic Rankine cycle. The results indicate that the design optimization method converges to the global optimum solution, regardless of the start values for the independent variables. In addition, the performance maps generated by the performance analysis method are physically consistent and agree with general findings from experimental data reported in the open literature. Considering the accuracy, robustness and low computational cost of the proposed methods, they can be regarded as a powerful tool for the preliminary design and performance prediction of radial inflow turbines, either as a standalone component or as part of a larger system

Bidragsytere

Brede Andre Larsen Hagen

Bidragsyterens navn vises på dette resultatet som Brede Hagen
  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet

Roberto Agromayor Otero

Bidragsyterens navn vises på dette resultatet som Roberto Agromayor
  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet

Petter Nekså

  • Tilknyttet:
    Forfatter
    ved Gassteknologi ved SINTEF Energi AS
  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
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