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Keywords: heat transfer
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Proceedings Papers
Numerical Demonstration for a Novel Design of High-Temperature Turbine Facility Enabled by Shock Tube
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127546
... environment is fulfilled. To examine the feasibility of the rig design in obtaining reliable heat transfer data, numerical simulations are conducted, verified and validated against experimental data. Numerical results demonstrate that the new rig is able to produce a mainstream gas of 589±1 K for a test time...
Proceedings Papers
Study on Segment Fitting Method of Nusselt Number on the Turbine Vane
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122859
... of the segments. The error is less than 10% in most regions of the vane surface. Nusselt number segment fitting method heat transfer turbine vane transient liquid crystal Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United...
Proceedings Papers
The Impact of Manufacturing Variations on the Aerothermal Performance of High-Pressure Turbine Blade Shrouds
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125688
..., based on a sample of scanned HPTB castings and finished parts. This study showed that the aftchord shroud step flow is Q2D and resembles canonical step flow with enhanced heat transfer at the reattachment point. The shroud step sentencing correlation is tested on the platform steps in the simulation...
Proceedings Papers
Effects of Localized Non-Gaussian Roughness on High Pressure Turbine Aero-Thermal Performance: Convective Heat Transfer, Skin-Friction and the Reynolds’ Analogy
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121839
...Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-121839 EFFECTS OF LOCALIZED NON-GAUSSIAN ROUGHNESS ON HIGH PRESSURE TURBINE AERO-THERMAL PERFORMANCE: CONVECTIVE HEAT TRANSFER, SKIN-FRICTION...
Proceedings Papers
Effect of Geometry and Heat Flux on Turbine Over-Tip Flow Power Extraction
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126598
... leakage flow and to analyze the effect of heat transfer and varying tip gap height. Three different flow topologies were categorized for relative tip gap sizes between 0.23% and 1.10% passage height. The contribution of the tip leakage flow to the overall losses could be quantified at each streamwise...
Proceedings Papers
Improving a Two-Equation Eddy-Viscosity Turbulence Model for High-Rayleigh-Number Natural-Convection Flows Using Machine Learning
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121161
... becomes unnecessary, potentially even leading to reduced simulation accuracy. This investigation carries implications for cost reduction in the design process of thermal engineering applications involving high-Rayleigh-number natural convection flows. heat transfer turbulence natural convection...
Proceedings Papers
Transient Simulation and Characterization of Conjugate Heat Transfer at Hydro Generator Polewindings
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-120895
... at the windings is highlighted yielding new fundamental insights into the local heat transfer mechanisms in hydro generators. CFD cooling electrical generator heat transfer thermal unsteady Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024...
Proceedings Papers
Numerical Analysis of Convective Heat Transfer Processes and Performance Assessment of Lattice and Triply Periodic Minimal Surface Geometries
Available to Purchase
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A041, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129097
... Abstract The increasing relevance of additive manufacturing has sparked interest in lattice and triply periodic minimal surfaces (TPMS) for lightweight, high-performance components. These structures have recently gained attention in thermo-fluid applications for enhanced heat transfer...
Proceedings Papers
Optimisation of Geometric and Operational Conditions of a Flywheel Energy Storage System to Minimise Standby Losses
Available to Purchase
Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128186
... considering FESSs as an alternative solution to battery storage systems. energy storage flywheel energy storage system windage loss heat transfer response surface method computational fluid dynamics Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024...
Proceedings Papers
Performance Improvement of a Heat Sink for Battery Thermal Management System
Available to PurchaseFaezeh Rasimarzabadi, Hassan Azarkish, Alexander Crain, Steven Recoskie, Evgueni Bordatchev, Mahmood Shirazy
Proc. ASME. GT2024, Volume 5: Cycle Innovations, V005T06A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122402
...-fin type) was numerically simulated using commercial software and the results were compared with the experiment. This was done to validate the numerical simulation was accurate enough to be used for future simulations. The heat transfer of the heat sink was enhanced by optimizing fin dimensions...
Proceedings Papers
Investigation of the Effects of Geometry Variations on the Performance of an Adjoint Optimized Film Cooling Hole
Available to Purchase
Proc. ASME. GT2024, Volume 7: Heat Transfer: Combustors; Heat Transfer: Film Cooling, V007T12A040, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128042
... effectiveness experimental heat transfer superposition Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-128042 INVESTIGATION OF THE EFFECTS OF GEOMETRY VARIATIONS ON THE PERFORMANCE OF AN ADJOINT OPTIMIZED FILM...
Proceedings Papers
Numerical Study of Flow and Heat Transfer Characteristics in Channel With Dumbbell Pin-Fin
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129023
... Abstract In this paper, numerical simulation was conducted to investigate the flow and heat transfer characteristics in the channel with dumbbell pin-fin, and the channel with circular pin-fin is used as the baseline to evaluate the enhanced heat transfer performance of the dumbbell pin-fin...
Proceedings Papers
Heat Transfer Evaluation on Turbine Vane With Corrugated Wall Impingement Structure Using Infrared Camera
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122499
... resulting in decreased heat transfer performance. To reduce the influence of crossflow, prior investigators have proposed using a corrugated wall type impingement structure. Although fundamental tests of simplified corrugated wall impingement structures have been conducted in the past to confirm the basic...
Proceedings Papers
Analysis of Heat Transfer Within Buoyancy Dominated Rotating Cavities of H.P Compressors
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126369
... Abstract A detailed knowledge of the flow structure and the heat transfer within blade-disc cavities is required for designing safe and efficient aero-engine compressors with a useful operating range. This paper presents the results from temperature field measurements obtained from the Multiple...
Proceedings Papers
Mass and Heat Exchange in Rotating Compressor Cavities With Variable Cob Separation
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126600
... temperature is driven by a conjugate heat transfer at Grashof numbers of order 10 13 . Such flows are further influenced by the heat and mass exchange with an axial through-flow of cooling air at low radius, where the interaction depends on the Rossby number and separation of the disc cobs. This paper...
Proceedings Papers
Experimental Study on Friction Coefficient and Heat Transfer Characteristics of Elliptical Pin Fin Channel at Rotating State
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123791
... Abstract In this study, an elliptical pin-fins array is proposed to enhance the heat transfer coefficient (HTC) of turbine blade trailing edge channel. The friction coefficient (f) and HTC are obtained at the condition where inlet Reynolds number (Re) ranges from 10,000 to 70,000, rotation...
Proceedings Papers
Impinging Jet Heat Transfer of Liquid Carbon Dioxide at Constant Enthalpy
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A028, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128470
... Abstract This study focuses on investigating the heat transfer characteristics of boiling with liquid (subcritical) carbon dioxide impinging jet at identical enthalpy conditions, specifically examining the influence of varying operating pressures on its behavior. The experiments were conducted...
Proceedings Papers
Effect of Turning Vane on Tip Wall Heat Transfer in a Rotating Two-Pass Rectangular Channel
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126984
... Abstract During gas turbine operation, the blade tip region experiences high thermal load. Adequate cooling near the tip is necessary to reduce thermal stresses and extend blade lifespan. This study examined heat transfer distribution on the tip wall of internal cooling channels through...
Proceedings Papers
Overall Cooling Effectiveness of Effusion Cooled and Thermal Barrier Coated Swirl Stabilized Liquid Fueled Combustor Liner in Reacting Flow Conditions With Infrared Thermography
Available to Purchase
Proc. ASME. GT2024, Volume 7: Heat Transfer: Combustors; Heat Transfer: Film Cooling, V007T11A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122132
.... The effusion cooling scheme has been formed to have dense staggered array with s/d = 9. Infrared Thermography (IRT) was employed to measure the liner metal temperature and overall cooling effectiveness values were identified. effusion cooling TBC heat transfer combustion Proceedings of ASME Turbo...
Proceedings Papers
Flow and Heat Transfer in Rotating Compressor Cavities With Inverted Shroud-Throughflow Temperature Differences
Available to Purchase
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123211
... which the flow structure in the cavity was dominated by a toroidal vortex. At sub-critical Ro, the flow structure for the inverted temperature gradient continued to be governed by buoyancy due to disc heat transfer. Momentum exchange with the axial throughflow and the gradient of circumferential...
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