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contributor authorTuite, Logan
contributor authorBraun, James
contributor authorPaniagua, Guillermo
date accessioned2024-12-24T18:52:10Z
date available2024-12-24T18:52:10Z
date copyright1/4/2024 12:00:00 AM
date issued2024
identifier issn0742-4795
identifier othergtp_146_06_061017.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302898
description abstractAs part of the ongoing research into the design of hardware for zero emission cycles, a first-stage high-pressure turbine (HPT) blade is optimized for a 300 MWe supercritical CO2 (sCO2) power cycle using the surrogate-assisted genetic algorithm optimizer in Numeca FINE/Design three-dimensional with objectives of increasing efficiency and decreasing heat load to the blade. Supercritical CO2 property tables are constructed from NIST REFPROP data for the condensable gas simulation in FINE/Turbo. A detailed mesh sensitivity study is performed for a baseline design to identify the proper-grid refinement and efficiently allocate resources for the optimization. Seventy design variables are selected for the initial population generation. Self-organizing maps are then used to focus the design variables on the most important ones affecting the objective functions. The optimization results in approximately 3000 three-dimensional Reynolds Averaged Navier Stokes simulations of different blade shapes with increases in efficiency of up to 0.85% and decreases in heat load of 14%. Families of blade shapes are identified for experimental testing in an annular rig at the Purdue Experimental Turbine Aerothermal Laboratory. A design to adapt the annular cascade for testing optimized geometries is introduced, which features eccentric radius sectors allowing for scaled-up geometries of sCO2 optimized blade profiles to be tested at design cycle representative conditions at high Reynolds numbers in dry air. Analysis into the effects of Reynolds number, working fluid, and geometric relations are presented to prove the efficacy of the test method.
publisherThe American Society of Mechanical Engineers (ASME)
titleOptimization of a High Pressure Turbine Blade and Sector-Based Annular Rig Design for Supercritical CO2 Power Cycle Representative Testing
typeJournal Paper
journal volume146
journal issue6
journal titleJournal of Engineering for Gas Turbines and Power
identifier doi10.1115/1.4063956
journal fristpage61017-1
journal lastpage61017-12
page12
treeJournal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 006
contenttypeFulltext


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