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Proceedings Papers

Investigation of Gas Turbine Internal Cooling Using Supercritical CO2 – Effect of Surface Roughness and Channel Aspect Ratio

Arnab Roy, Matthew Searle, Sridharan Ramesh, Douglas Straub
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A026, June 13–17, 2022
Paper No: GT2022-83319
DOI: https://doi.org/10.1115/GT2022-83319
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Topics: Cooling, Gas turbines, Supercritical carbon dioxide, Surface roughness, Reynolds number, Additive manufacturing, Computational fluid dynamics, Heat transfer, Flow (Dynamics), Fluids
Proceedings Papers

Computational and Experimental Study of Film-Cooling Effectiveness With and Without Downstream Vortex Generators

Chien-Shing Lee, Tom I-P. Shih, Douglas Straub, Justin Weber, Edward Robey
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A030, June 13–17, 2022
Paper No: GT2022-82675
DOI: https://doi.org/10.1115/GT2022-82675
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Topics: Film cooling, Generators, Vortices, Flow (Dynamics), Cooling, Heat transfer, Temperature, Computation, Flat plates, Plates (structures)
Journal Articles

Computational and Experimental Study of Film-Cooling Effectiveness With and Without Downstream Vortex Generators

Chien-Shing Lee, Tom I-P. Shih, Douglas Straub, Justin M. Weber, Edward H. Robey
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. February 2023, 145(2): 021007.
Paper No: TURBO-22-1228
DOI: https://doi.org/10.1115/1.4055529
Published Online: October 12, 2022
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Topics: Film cooling, Flow (Dynamics), Temperature, Vortices, Generators, Heat transfer, Cooling
Journal Articles

Investigation of Gas Turbine Internal Cooling Using Supercritical CO 2 —Effect of Surface Roughness and Channel Aspect Ratio

Arnab Roy, Matthew Searle, Sridharan Ramesh, Douglas Straub
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111019.
Paper No: GTP-22-1358
DOI: https://doi.org/10.1115/1.4055497
Published Online: September 23, 2022
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Topics: Computational fluid dynamics, Cooling, Flow (Dynamics), Heat transfer, Reynolds number, Surface roughness, Friction, Simulation, Gas turbines, Sands
Journal Articles

Film Cooling Performance Prediction for Air and Supercritical CO 2

Sridharan Ramesh, Douglas Straub
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. March 2023, 145(3): 031702.
Paper No: JERT-22-1075
DOI: https://doi.org/10.1115/1.4055199
Published Online: September 7, 2022
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Topics: Coolants, Film cooling, Density, Cooling, Turbines
Proceedings Papers

Impact on Cycle Efficiency of Small Combined Heat and Power Plants From Increasing Firing Temperature Enabled by Additive Manufacturing of Turbine Blades and Vanes

Selcuk Can Uysal, Douglas Straub, James B. Black
Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T16A003, June 7–11, 2021
Paper No: GT2021-58718
DOI: https://doi.org/10.1115/GT2021-58718
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Topics: Additive manufacturing, Cogeneration plants, Combined heat and power, Cycles, Firing, Gas turbines, Temperature, Turbine blades
Journal Articles

Investigating Gas Turbine Internal Cooling Using Supercritical CO 2 at Higher Reynolds Numbers for Direct Fired Cycle Applications

Matthew Searle, Arnab Roy, James Black, Douglas Straub, Sridharan Ramesh
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. January 2022, 144(1): 011007.
Paper No: TURBO-21-1148
DOI: https://doi.org/10.1115/1.4052138
Published Online: September 7, 2021
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Topics: Cooling, Flow (Dynamics), Friction, Gas turbines, Heat transfer, Reynolds number, Surface roughness, Computational fluid dynamics, Supercritical carbon dioxide, Uncertainty
Journal Articles

State-of-the-Art Cooling Technology for a Turbine Rotor Blade

Jason Town, Douglas Straub, James Black, Karen A. Thole, Tom I-P. Shih
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2018, 140(7): 071007.
Paper No: TURBO-18-1049
DOI: https://doi.org/10.1115/1.4039942
Published Online: June 14, 2018
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Topics: Blades, Cooling, Design, Film cooling
Proceedings Papers

Investigation of Factors That Contribute to Deposition Formation on Turbine Components in a High-Pressure Combustion Facility

Robert G. Murphy, Andrew C. Nix, Seth A. Lawson, Douglas Straub, Stephen K. Beer
Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A027, June 3–7, 2013
Paper No: GT2013-94657
DOI: https://doi.org/10.1115/GT2013-94657
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Topics: Combustion, High pressure (Physics), Turbine components, Particulate matter, Integrated gasification combined cycle power stations, Temperature, Metals, Pressure, Turbines, Coal
Proceedings Papers

Preliminary Experimental Investigation of the Effects of Particulate Deposition on IGCC Turbine Film-Cooling in a High-Pressure Combustion Facility

Robert G. Murphy, Andrew C. Nix, Seth A. Lawson, Douglas Straub, Stephen K. Beer
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 979-986, June 11–15, 2012
Paper No: GT2012-68806
DOI: https://doi.org/10.1115/GT2012-68806
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Topics: Combustion, Film cooling, High pressure (Physics), Integrated gasification combined cycle power stations, Particulate matter, Turbines, High temperature, Pressure, Temperature, Combustion gases