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INVESTIGATION OF ONE-DIMENSIONAL TURBINE DESIGN PARAMETERS WITH RELATION TO COOLING PARAMETERS FOR A HIGH PRESSURE INDUSTRIAL GAS TURBINE STAGE
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
Lund Univ, Dept Energy Sci, S-22100 Lund, Sweden..
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0002-1033-9601
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2011 (English)In: 9TH EUROPEAN CONFERENCE ON TURBOMACHINERY: FLUID DYNAMICS AND THERMODYNAMICS, VOLS I AND II / [ed] Sen, M Bois, G Manna, M Arts, T, EUROPEAN TURBOMACHINERY SOC-EUROTURBO , 2011, p. 557-568Conference paper, Published paper (Refereed)
Abstract [en]

This parametric study describes the effects of design parameters on coolant consumption and performance loss of the first stage of a high pressure industrial gas turbine. The Lund University Axial Turbine (LUAX-T) tool is employed to develop a better coupling between design parameters, cooling air and aerodynamic losses. From the performed design study; a lower stage reaction degree decreases the rotor coolant requirement, mainly due to a resulting decrease in rotor inlet temperature. However, a low reaction degree increases the cooling losses for the vane, which is because of a direct proportion between the mixing losses and the local Mach number. Based on the performed calculations and loss predictions, a range of design parameters is recommended for first stage of a gas turbine, while considering the influence of this choice on the next stage. The loss calculated for the stator blade has been calibrated against existing experimental data.

Place, publisher, year, edition, pages
EUROPEAN TURBOMACHINERY SOC-EUROTURBO , 2011. p. 557-568
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-243240ISI: 000375695300045Scopus ID: 2-s2.0-84881171783OAI: oai:DiVA.org:kth-243240DiVA, id: diva2:1351439
Conference
9th European Conference on Turbomachinery - Fluid Dynamics and Thermodynamics,Istanbul Tech Univ, Istanbul, TURKEY,MAR 21-25, 2011
Note

QC 20190916

Available from: 2019-09-16 Created: 2019-09-16 Last updated: 2019-09-16Bibliographically approved

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Fridh, JensFransson, Torsten

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