Flow instabilities in gas turbine chute seals

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August undefined, 2024

http://www.diva-portal.org/smash/record.jsf?pid=diva2:1414986 WebFeb 16, 2010 · The present paper gives a contribution to a better understanding of the flow at the rim and in the wheel space of gas turbines. Steady state and time-accurate numerical simulations with a commercial Navier-Stokes solver for a 1.5 stage turbine similar to the model treated in the European Research Project ICAS-GT were conducted. In the …

Fabian Hualca (CEng, Ph.D) - Keynote Speaker - Consulate Of …

WebThe ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurised purge required to protect highly-stressed … WebJun 11, 2012 · In core gas turbines relatively cold air is purged through the hub gap between stator and rotor in order to seal the disc space against flow ingestion from the main annulus. Although the sealing mass flow rate is commonly very small compared to the main annulus mass flow rate, it can have significant effects on the development of the … solar panels and how they work

Effects of Sealing Flow Supply Configuration with Holes on

WebOct 17, 2024 · In high-pressure turbines, cool air is purged through rim seals at the periphery of wheel-spaces between the stator and rotor disks. The purge suppresses the … WebRim-seals reduce the pressurized purge required to protect highly stressed components. This paper describes an experimental and computational study of flow through a turbine … WebJul 6, 2011 · Abstract. Unsteady flow dynamics in turbine rim seals are known to be complex and attempts accurately to predict the interaction of the mainstream flow with the secondary air system cooling flows using computational fluid dynamics (CFD) with Reynolds-averaged Navier–Stokes (RANS) turbulence models have proved difficult. solar panels and photovoltaic inventions

Flow Instabilities in Gas Turbine Chute Seals

WebDec 14, 2024 · This paper proposes a new-designed rim seal configuration with sealing holes based on the conventional radial rim seal, and presents a numerical comparison of the sealing performance between the conventional sealing flow supply configuration and the new sealing flow supply configuration with holes at different sealing flow rates. The … WebAug 30, 2024 · In high-pressure turbines, cool air is purged through rim seals at the periphery of wheel-spaces between the stator and rotor discs. The purge suppresses the ingress of hot gas from the annulus but superfluous use is inefficient. In this paper the interaction between the ingress, purge and mainstream flow is studied using unsteady … solar panels and home resaleWebAug 24, 2024 · Abstract. This paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of … solar panels and homeowners associations

"WebJun 17, 2024 · The fluid flow in gas turbine rim seals and the sealing effectiveness are influenced by the interaction of the rotor and the stator disk and by the external flow … " - Flow instabilities in gas turbine chute seals

Flow instabilities in gas turbine chute seals

Computation of Flow Instabilities in Turbine Rim Seals

WebJul 1, 2012 · Flow Instabilities in Gas Turbine Chute Seals. J. Horwood, Fabian Patricio Hualca Tigsilema, +5 authors J. Fridh; Engineering. ... The fluid flow in gas turbine rim seals and the sealing effectiveness are influenced by the interaction of the rotor and the stator disk and by the external flow in the hot gas annulus. WebDOI: 10.1115/1.4045148 Corpus ID: 203078678; Flow Instabilities in Gas Turbine Chute Seals @article{Horwood2024FlowII, title={Flow Instabilities in Gas Turbine Chute Seals}, author={Joshua T. Horwood and Fabian Patricio Hualca Tigsilema and Michael T. Wilson and James A Scobie and Carl M. Sangan and Gary D. Lock and Johan Dahlqvist and …

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WebJun 17, 2024 · This paper presents experimental and computational results using a 1.5-stage test rig designed to investigate the effects of ingress through a double radial overlap rim-seal. The effect of the vanes and blades on ingress was investigated by a series of carefully controlled experiments: first, the position of the vane relative to the rim seal was … WebSep 9, 2024 · This paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of chute seal …

WebMar 3, 2015 · To examine the simplified model to predict the ingress flow rate which was formerly proposed by the authors, the scaling characteristics of a shrouded rotor-stator system with a nonaxisymmetric main flow is studied using gas concentration measurements in the wheel-space. The predicted value for the sealing effectiveness as well as the … WebJun 17, 2024 · The ingress of hot annulus gas into stator–rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurized purge required to protect highly …

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WebThe ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurised purge required to protect highly-stressed …

WebThis paper investigates flow instabilities inside the cavity formed between the stator and rotor disks of a high-speed turbine rig. The cavity rim seal is of chute seal design. from … solar panels and inverters for 30 amp rv unitWebNov 5, 2024 · Abstract. The ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim-seals reduce the pressurised purge required to … solar panels and insulation floridaWebtitle = "Flow Instabilities in Gas Turbine Chute Seals", abstract = "The ingress of hot annulus gas into stator-rotor cavities is an important topic to engine designers. Rim … slushie maker cup magicWebNov 19, 2024 · Rim seals are fitted at the periphery of these cavities to reduce the pressurised purge required to protect vulnerable, highly-stressed engine components. … solar panels and inverter for pool pumpWebDec 4, 2012 · Measurement of ingress through gas turbine rim seals. PhD Thesis, University of Bath, UK, 2011. Google Scholar. 25. Laitone EVNew compressibility correction for two-dimensional subsonic flowJ Aeronaut Sci1951185350–350. ... Flow Instabilities in Gas Turbine Chute Seals. Go to citation Crossref Google Scholar. slushie machine trinidadWebrotor blades of high pressure gas turbine stage design, and a chute seal at the periphery of the wheel-space between the rotor and the stator. The turbine receives the inlet ﬂow from a screw compressor achieving a maximum pressure of 4 bar(a) at a nominal annular mass-ﬂow rate of 4.7 kg/s. Figure 1 is a sectional view of the slushie maker instructionsWebOct 1, 2015 · Mike Wilson is a Senior Lecturer in Mechanical Engineering and the Director of Undergraduate Studies in the Department. His research involves the computation of internal flow and heat transfer, mainly for rotating disc systems relevant to the internal cooling air systems used in gas turbine engines. Dr Wilson obtained a BSc (Hons) in Pure ... solar panels and power bank