Not listed THE OBJECTIVE OF THIS PHASE-II RESEARCH PROGRAM IS THE FURTHER EXTENSION OF THE FEASIBILITY ASSESSMENT OF MATRIX-STABILIZED COMBUSTION AS LOW-EMISSION AND FUEL-FLEXIBLE COMBUSTION STRATEGY FOR GAS TURBINES (GTS). ESSENTIAL PROOF-OF-CONCEPT OF THIS TECHNOLOGY WAS ESTABLISHED IN PHASE I THROUGH (I) THE EXPERIMENTAL CHARACTERIZATION OFTHE PERFORMANCE AND STABILITY IN CONTINUOUS (>4()0 HOURS) AND LIFE-CYCLE (>1200 ON/OFF CYCLES) TESTS DEMONSTRATING ACCEPTABLE PRESSURE LOSSES BELOW 1% NO-EMISSIONS BELOW 15 PPM AND ACHIEVING REQUIRED MAS.S-FLUX RATES; (II) THE IDENTIFICATION OF A NOVEL BURNER CONCEPT WITH VARIABLE POROSITY FOR EXTENDED FLAME STABILITY AND REDUCED PRESSURE DROP; (III) THE DEVELOPMENT OF ADVANCED X-RAY COMPUTED TOMOGRAPHY (XCT) DIAGNOSTICS FOR NON-INTRUSIVE VOLUMETRIC TEMPERATURE MEASUREMENTS INSIDE THE POROUS MATRIX; AND (IV) THE DEVELOPMENT OF COMPUTATIONAL MODELING CAPABILITIES FOR THE DESIGN OPTIMIZATION OF POROUS-MEDIA BURNERS (PIVIBS). THE PROPOSED PHASE-II RESEARCH PROJECT DIRECTLY ADDRESSES CRITICAL RESEARCH ASPECTS THAT WERE IDENTIFLED AS OUTCOME OFTHE PHASE-I EFFORT AND THROUGH FEEDBACK FROM NASA AND INDUSTRY BY (I) CONDUCTING PERFORMANCE TESTS FOR LIQUID FUELS AT ELEVATED PRESSURES THAT ARE REPRESENTATIVE OF FLIGHT CONDITIONS; (II) EXPERIMENTALLY DEMONSTRATING THE PERFORMANCE OFTHE NEWLY DEVELOPED BURNER CONCEPT; (III) PERFORMING PORE-RESOLVED SIMULATIONS OF MATRIX-STABILIZED COMBUSTION; AND (IV) FURTHER IMPROVING THE ACCURACY AND SPATIAL RESOLUHON OF THE XCT-DIAGNOSLICS. THE GOAL OF THE PROPOSED MEASUREMENT CAMPAIGN IS TO CHARACTERIZE THE PERFORMANCE (STABILITY EMISSIONS PRESSURE DROP AND DURABILITY) OF PMBS USING JET-A AND ALTERNAFLVE LIQUID FUELS AT PRESSURES UP TO 20 BAR. FOR THIS OUR EXISTING BURNER SETUP WILL BE MODIFLED FOR LIQUID-FUEL DELIVERY AND WE WILL ACCESS THE CE-5 FACILITY AT THE NAS.A GLENN RESEARCH CENTER FOR PERFORMANCE TESFLNG AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS. THE NEWLY PROPOSED BURNER CONCEPT WITH CONTINUOUS FLAME .STABILIZATION WILL BE IMPLEMENTED AND BENCHMARKED TO EXPERIMENTALLY CONFLRM PREDICTED PERFORMANCE GAINS FOR REDUCED PRESSURE LOSSES EMISSIONS AND ENHANCED FLAME STABILITY. BY LEVERAGING OUR RECENTLY DEVELOPED NON-ADIABATIC COMBUSTION MT>DEL AND OUR AVAILABLE UNSTRUCTURED HIGH-FLDCLITY REACTIVE-FLOW SOLVER PORE-RESOLVED SIMULATIONS WILL BE PERFORMED TO GAIN FUNDAMENTAL PHYSICAL UNDERSTANDING ABOUT FLAME STRUCTURE AND COUPLING PROCESSES BETWEEN HEAT-RELEASE DISTRIBUTION SOLID/GAS HEAT EXCHANGE AND HYDRODYNAMICS. USING METHODS THAT WERE ESTABLISHED IN PHASE I THE MATRIX TOPOLOGY WILL BE DIRECTLY EXTRACTED FROM PMB-EXPERIMENTS USING MICRO-CT AND SURFACE RECONSTRUCTION. THIS ENABLES THE DIRECT COMPARISON AGAINST XCT-TEMPERATURE MEASUREMENTS AND THESE PORE-RESOLVED SIMULATIONS WILL BE ANALYZED TO RECONCILE DEFICIENCIES OF LOW-ORDER MODELS. RESEARCH EFFORTS TO FURTHER ADVANCE THE XCT-DIAGNOSTICS FOR QUANTITATIVE 3D-TEMPERATURE MEASUREMENTS WILL FOCUS ON INCREASING THE SPATIAL RESOLUTION AND IMPROVING THE SIGNAL STRENGTH FOR MEASUREMENTS AT ELEVATED PRESSURES. FOR THIS ITERATIVE RECONSTRUCTION TECHNIQUES WILL BE UTILIZED TO INTRODUCE CONSTRAINTS ON THC PHYSICAL RCALIZABILITY. TOGETHER WITH THC INSTALLATION OF AN ULTRA-HIGH RESOLUTION DETECTOR AND DUAL-ENERGY XCT WE TARGET TO ACHIEVE TEMPERATURE MEASUREMENTS WITH STANDARD DEVIATION BELOW 50 K AT SPATIAL RESOLUTION OF 25 MICROMETER. TO ACCOMPLISH THIS RESEARCH PLAN A MULTI-DISCIPLINARY RESEARCH TEAM IS ASSEMBLED THAT COMBINES UNIQUE EXPERTISE ON THC HIGH-FIDELITY COMBUSTION MODELING NUMERICAL METHODS AND OPTIMIZATION TECHNIQUES (IHME STANFORD) THE DEVELOPMENT OF ADVANCED XCTDIAGNOSTICS (HINSHAW STANFORD) AND OUR INDUSTRIAL PARTNER ALZETA CORPORATION (SULLIVAN) BRINGS OVER 30 YEARS OF EXPERIENCE ON THE DEVELOPMENT AND COMMERCIALIZATION OF POROUS BURNER TECHNOLOGIES TO THIS RESEARCH. ($953) 5/31/19 5 THE OBJECTIVE OF THIS PHASE-II RESEARCH PROGRAM IS THE FURTHER EXTENSION OF THE FEASIBILITY ASSESSMENT OF MATRIX-STABILIZED COMBUSTION AS LOW-EMISSION AND FUEL-FLEXIBLE COMBUSTION STRATEGY FOR GAS TURBINES (GTS). ESSENTIAL PROOF-OF-CONCEPT OF THIS TECHNOLOGY WAS ESTABLISHED IN PHASE I THROUGH (I) THE EXPERIMENTAL CHARACTERIZATION OFTHE PERFORMANCE AND STABILITY IN CONTINUOUS (>4()0 HOURS) AND LIFE-CYCLE (>1200 ON/OFF CYCLES) TESTS, DEMONSTRATING ACCEPTABLE PRESSURE LOSSES BELOW 1%, NO-EMISSIONS BELOW 15 PPM, AND ACHIEVING REQUIRED MAS.S-FLUX RATES; (II) THE IDENTIFICATION OF A NOVEL BURNER CONCEPT WITH VARIABLE POROSITY FOR EXTENDED FLAME STABILITY AND REDUCED PRESSURE DROP; (III) THE DEVELOPMENT OF ADVANCED X-RAY COMPUTED TOMOGRAPHY (XCT) DIAGNOSTICS FOR NON-INTRUSIVE VOLUMETRIC TEMPERATURE MEASUREMENTS INSIDE THE POROUS MATRIX; AND (IV) THE DEVELOPMENT OF COMPUTATIONAL MODELING CAPABILITIES FOR THE DESIGN OPTIMIZATION OF POROUS-MEDIA BURNERS (PIVIBS). THE PROPOSED PHASE-II RESEARCH PROJECT DIRECTLY ADDRESSES CRITICAL RESEARCH ASPECTS THAT WERE IDENTIFLED AS OUTCOME OFTHE PHASE-I EFFORT AND THROUGH FEEDBACK FROM NASA AND INDUSTRY BY (I) CONDUCTING PERFORMANCE TESTS FOR LIQUID FUELS AT ELEVATED PRESSURES THAT ARE REPRESENTATIVE OF FLIGHT CONDITIONS; (II) EXPERIMENTALLY DEMONSTRATING THE PERFORMANCE OFTHE NEWLY DEVELOPED BURNER CONCEPT; (III) PERFORMING PORE-RESOLVED SIMULATIONS OF MATRIX-STABILIZED COMBUSTION; AND (IV) FURTHER IMPROVING THE ACCURACY AND SPATIAL RESOLUHON OF THE XCT-DIAGNOSLICS. THE GOAL OF THE PROPOSED MEASUREMENT CAMPAIGN IS TO CHARACTERIZE THE PERFORMANCE (STABILITY, EMISSIONS, PRESSURE DROP, AND DURABILITY) OF PMBS USING JET-A AND ALTERNAFLVE LIQUID FUELS AT PRESSURES UP TO 20 BAR. FOR THIS, OUR EXISTING BURNER SETUP WILL BE MODIFLED FOR LIQUID-FUEL DELIVERY, AND WE WILL ACCESS THE CE-5 FACILITY AT THE NAS.A GLENN RESEARCH CENTER FOR PERFORMANCE TESFLNG AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS. THE NEWLY PROPOSED BURNER CONCEPT WITH CONTINUOUS FLAME .STABILIZATION WILL BE IMPLEMENTED AND BENCHMARKED TO EXPERIMENTALLY CONFLRM PREDICTED PERFORMANCE GAINS FOR REDUCED PRESSURE LOSSES, EMISSIONS, AND ENHANCED FLAME STABILITY. BY LEVERAGING OUR RECENTLY DEVELOPED NON-ADIABATIC COMBUSTION MT>DEL AND OUR AVAILABLE UNSTRUCTURED HIGH-FLDCLITY REACTIVE-FLOW SOLVER, PORE-RESOLVED SIMULATIONS WILL BE PERFORMED TO GAIN FUNDAMENTAL PHYSICAL UNDERSTANDING ABOUT FLAME STRUCTURE AND COUPLING PROCESSES BETWEEN HEAT-RELEASE DISTRIBUTION, SOLID/GAS HEAT EXCHANGE, AND HYDRODYNAMICS. USING METHODS THAT WERE ESTABLISHED IN PHASE I , THE MATRIX TOPOLOGY WILL BE DIRECTLY EXTRACTED FROM PMB-EXPERIMENTS USING MICRO-CT AND SURFACE RECONSTRUCTION. THIS ENABLES THE DIRECT COMPARISON AGAINST XCT-TEMPERATURE MEASUREMENTS, AND THESE PORE-RESOLVED SIMULATIONS WILL BE ANALYZED TO RECONCILE DEFICIENCIES OF LOW-ORDER MODELS. RESEARCH EFFORTS TO FURTHER ADVANCE THE XCT-DIAGNOSTICS FOR QUANTITATIVE 3D-TEMPERATURE MEASUREMENTS WILL FOCUS ON INCREASING THE SPATIAL RESOLUTION AND IMPROVING THE SIGNAL STRENGTH FOR MEASUREMENTS AT ELEVATED PRESSURES. FOR THIS, ITERATIVE RECONSTRUCTION TECHNIQUES WILL BE UTILIZED TO INTRODUCE CONSTRAINTS ON THC PHYSICAL RCALIZABILITY. TOGETHER WITH THC INSTALLATION OF AN ULTRA-HIGH RESOLUTION DETECTOR AND DUAL-ENERGY XCT, WE TARGET TO ACHIEVE TEMPERATURE MEASUREMENTS WITH STANDARD DEVIATION BELOW 50 K AT SPATIAL RESOLUTION OF 25 MICROMETER. TO ACCOMPLISH THIS RESEARCH PLAN, A MULTI-DISCIPLINARY RESEARCH TEAM IS ASSEMBLED THAT COMBINES UNIQUE EXPERTISE ON THC HIGH-FIDELITY COMBUSTION MODELING, NUMERICAL METHODS, AND OPTIMIZATION TECHNIQUES (IHME, STANFORD), THE DEVELOPMENT OF ADVANCED XCTDIAGNOSTICS (HINSHAW, STANFORD), AND OUR INDUSTRIAL PARTNER ALZETA CORPORATION (SULLIVAN) BRINGS OVER 30 YEARS OF EXPERIENCE ON THE DEVELOPMENT AND COMMERCIALIZATION OF POROUS BURNER TECHNOLOGIES TO THIS RESEARCH. Funding Only Action ($953) 5/31/19 4 THE OBJECTIVE OF THIS PHASE-II RESEARCH PROGRAM IS THE FURTHER EXTENSION OF THE FEASIBILITY ASSESSMENT OF MATRIX-STABILIZED COMBUSTION AS LOW-EMISSION AND FUEL-FLEXIBLE COMBUSTION STRATEGY FOR GAS TURBINES (GTS). ESSENTIAL PROOF-OF-CONCEPT OF THIS TECHNOLOGY WAS ESTABLISHED IN PHASE I THROUGH (I) THE EXPERIMENTAL CHARACTERIZATION OFTHE PERFORMANCE AND STABILITY IN CONTINUOUS (>4()0 HOURS) AND LIFE-CYCLE (>1200 ON/OFF CYCLES) TESTS, DEMONSTRATING ACCEPTABLE PRESSURE LOSSES BELOW 1%, NO-EMISSIONS BELOW 15 PPM, AND ACHIEVING REQUIRED MAS.S-FLUX RATES; (II) THE IDENTIFICATION OF A NOVEL BURNER CONCEPT WITH VARIABLE POROSITY FOR EXTENDED FLAME STABILITY AND REDUCED PRESSURE DROP; (III) THE DEVELOPMENT OF ADVANCED X-RAY COMPUTED TOMOGRAPHY (XCT) DIAGNOSTICS FOR NON-INTRUSIVE VOLUMETRIC TEMPERATURE MEASUREMENTS INSIDE THE POROUS MATRIX; AND (IV) THE DEVELOPMENT OF COMPUTATIONAL MODELING CAPABILITIES FOR THE DESIGN OPTIMIZATION OF POROUS-MEDIA BURNERS (PIVIBS). THE PROPOSED PHASE-II RESEARCH PROJECT DIRECTLY ADDRESSES CRITICAL RESEARCH ASPECTS THAT WERE IDENTIFLED AS OUTCOME OFTHE PHASE-I EFFORT AND THROUGH FEEDBACK FROM NASA AND INDUSTRY BY (I) CONDUCTING PERFORMANCE TESTS FOR LIQUID FUELS AT ELEVATED PRESSURES THAT ARE REPRESENTATIVE OF FLIGHT CONDITIONS; (II) EXPERIMENTALLY DEMONSTRATING THE PERFORMANCE OFTHE NEWLY DEVELOPED BURNER CONCEPT; (III) PERFORMING PORE-RESOLVED SIMULATIONS OF MATRIX-STABILIZED COMBUSTION; AND (IV) FURTHER IMPROVING THE ACCURACY AND SPATIAL RESOLUHON OF THE XCT-DIAGNOSLICS. THE GOAL OF THE PROPOSED MEASUREMENT CAMPAIGN IS TO CHARACTERIZE THE PERFORMANCE (STABILITY, EMISSIONS, PRESSURE DROP, AND DURABILITY) OF PMBS USING JET-A AND ALTERNAFLVE LIQUID FUELS AT PRESSURES UP TO 20 BAR. FOR THIS, OUR EXISTING BURNER SETUP WILL BE MODIFLED FOR LIQUID-FUEL DELIVERY, AND WE WILL ACCESS THE CE-5 FACILITY AT THE NAS.A GLENN RESEARCH CENTER FOR PERFORMANCE TESFLNG AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS. THE NEWLY PROPOSED BURNER CONCEPT WITH CONTINUOUS FLAME .STABILIZATION WILL BE IMPLEMENTED AND BENCHMARKED TO EXPERIMENTALLY CONFLRM PREDICTED PERFORMANCE GAINS FOR REDUCED PRESSURE LOSSES, EMISSIONS, AND ENHANCED FLAME STABILITY. BY LEVERAGING OUR RECENTLY DEVELOPED NON-ADIABATIC COMBUSTION MT>DEL AND OUR AVAILABLE UNSTRUCTURED HIGH-FLDCLITY REACTIVE-FLOW SOLVER, PORE-RESOLVED SIMULATIONS WILL BE PERFORMED TO GAIN FUNDAMENTAL PHYSICAL UNDERSTANDING ABOUT FLAME STRUCTURE AND COUPLING PROCESSES BETWEEN HEAT-RELEASE DISTRIBUTION, SOLID/GAS HEAT EXCHANGE, AND HYDRODYNAMICS. USING METHODS THAT WERE ESTABLISHED IN PHASE I , THE MATRIX TOPOLOGY WILL BE DIRECTLY EXTRACTED FROM PMB-EXPERIMENTS USING MICRO-CT AND SURFACE RECONSTRUCTION. THIS ENABLES THE DIRECT COMPARISON AGAINST XCT-TEMPERATURE MEASUREMENTS, AND THESE PORE-RESOLVED SIMULATIONS WILL BE ANALYZED TO RECONCILE DEFICIENCIES OF LOW-ORDER MODELS. RESEARCH EFFORTS TO FURTHER ADVANCE THE XCT-DIAGNOSTICS FOR QUANTITATIVE 3D-TEMPERATURE MEASUREMENTS WILL FOCUS ON INCREASING THE SPATIAL RESOLUTION AND IMPROVING THE SIGNAL STRENGTH FOR MEASUREMENTS AT ELEVATED PRESSURES. FOR THIS, ITERATIVE RECONSTRUCTION TECHNIQUES WILL BE UTILIZED TO INTRODUCE CONSTRAINTS ON THC PHYSICAL RCALIZABILITY. TOGETHER WITH THC INSTALLATION OF AN ULTRA-HIGH RESOLUTION DETECTOR AND DUAL-ENERGY XCT, WE TARGET TO ACHIEVE TEMPERATURE MEASUREMENTS WITH STANDARD DEVIATION BELOW 50 K AT SPATIAL RESOLUTION OF 25 MICROMETER. TO ACCOMPLISH THIS RESEARCH PLAN, A MULTI-DISCIPLINARY RESEARCH TEAM IS ASSEMBLED THAT COMBINES UNIQUE EXPERTISE ON THC HIGH-FIDELITY COMBUSTION MODELING, NUMERICAL METHODS, AND OPTIMIZATION TECHNIQUES (IHME, STANFORD), THE DEVELOPMENT OF ADVANCED XCTDIAGNOSTICS (HINSHAW, STANFORD), AND OUR INDUSTRIAL PARTNER ALZETA CORPORATION (SULLIVAN) BRINGS OVER 30 YEARS OF EXPERIENCE ON THE DEVELOPMENT AND COMMERCIALIZATION OF POROUS BURNER TECHNOLOGIES TO THIS RESEARCH. Other Administrative Action $0 8/16/18 Not listed THE OBJECTIVE OF THIS PHASE-II RESEARCH PROGRAM IS THE FURTHER EXTENSION OF THE FEASIBILITY ASSESSMENT OF MATRIX-STABILIZED COMBUSTION AS LOW-EMISSION AND FUEL-FLEXIBLE COMBUSTION STRATEGY FOR GAS TURBINES (GTS). ESSENTIAL PROOF-OF-CONCEPT OF THIS TECHNOLOGY WAS ESTABLISHED IN PHASE I THROUGH (I) THE EXPERIMENTAL CHARACTERIZATION OFTHE PERFORMANCE AND STABILITY IN CONTINUOUS (>4()0 HOURS) AND LIFE-CYCLE (>1200 ON/OFF CYCLES) TESTS DEMONSTRATING ACCEPTABLE PRESSURE LOSSES BELOW 1% NO-EMISSIONS BELOW 15 PPM AND ACHIEVING REQUIRED MAS.S-FLUX RATES; (II) THE IDENTIFICATION OF A NOVEL BURNER CONCEPT WITH VARIABLE POROSITY FOR EXTENDED FLAME STABILITY AND REDUCED PRESSURE DROP; (III) THE DEVELOPMENT OF ADVANCED X-RAY COMPUTED TOMOGRAPHY (XCT) DIAGNOSTICS FOR NON-INTRUSIVE VOLUMETRIC TEMPERATURE MEASUREMENTS INSIDE THE POROUS MATRIX; AND (IV) THE DEVELOPMENT OF COMPUTATIONAL MODELING CAPABILITIES FOR THE DESIGN OPTIMIZATION OF POROUS-MEDIA BURNERS (PIVIBS). THE PROPOSED PHASE-II RESEARCH PROJECT DIRECTLY ADDRESSES CRITICAL RESEARCH ASPECTS THAT WERE IDENTIFLED AS OUTCOME OFTHE PHASE-I EFFORT AND THROUGH FEEDBACK FROM NASA AND INDUSTRY BY (I) CONDUCTING PERFORMANCE TESTS FOR LIQUID FUELS AT ELEVATED PRESSURES THAT ARE REPRESENTATIVE OF FLIGHT CONDITIONS; (II) EXPERIMENTALLY DEMONSTRATING THE PERFORMANCE OFTHE NEWLY DEVELOPED BURNER CONCEPT; (III) PERFORMING PORE-RESOLVED SIMULATIONS OF MATRIX-STABILIZED COMBUSTION; AND (IV) FURTHER IMPROVING THE ACCURACY AND SPATIAL RESOLUHON OF THE XCT-DIAGNOSLICS. THE GOAL OF THE PROPOSED MEASUREMENT CAMPAIGN IS TO CHARACTERIZE THE PERFORMANCE (STABILITY EMISSIONS PRESSURE DROP AND DURABILITY) OF PMBS USING JET-A AND ALTERNAFLVE LIQUID FUELS AT PRESSURES UP TO 20 BAR. FOR THIS OUR EXISTING BURNER SETUP WILL BE MODIFLED FOR LIQUID-FUEL DELIVERY AND WE WILL ACCESS THE CE-5 FACILITY AT THE NAS.A GLENN RESEARCH CENTER FOR PERFORMANCE TESFLNG AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS. THE NEWLY PROPOSED BURNER CONCEPT WITH CONTINUOUS FLAME .STABILIZATION WILL BE IMPLEMENTED AND BENCHMARKED TO EXPERIMENTALLY CONFLRM PREDICTED PERFORMANCE GAINS FOR REDUCED PRESSURE LOSSES EMISSIONS AND ENHANCED FLAME STABILITY. BY LEVERAGING OUR RECENTLY DEVELOPED NON-ADIABATIC COMBUSTION MT>DEL AND OUR AVAILABLE UNSTRUCTURED HIGH-FLDCLITY REACTIVE-FLOW SOLVER PORE-RESOLVED SIMULATIONS WILL BE PERFORMED TO GAIN FUNDAMENTAL PHYSICAL UNDERSTANDING ABOUT FLAME STRUCTURE AND COUPLING PROCESSES BETWEEN HEAT-RELEASE DISTRIBUTION SOLID/GAS HEAT EXCHANGE AND HYDRODYNAMICS. USING METHODS THAT WERE ESTABLISHED IN PHASE I THE MATRIX TOPOLOGY WILL BE DIRECTLY EXTRACTED FROM PMB-EXPERIMENTS USING MICRO-CT AND SURFACE RECONSTRUCTION. THIS ENABLES THE DIRECT COMPARISON AGAINST XCT-TEMPERATURE MEASUREMENTS AND THESE PORE-RESOLVED SIMULATIONS WILL BE ANALYZED TO RECONCILE DEFICIENCIES OF LOW-ORDER MODELS. RESEARCH EFFORTS TO FURTHER ADVANCE THE XCT-DIAGNOSTICS FOR QUANTITATIVE 3D-TEMPERATURE MEASUREMENTS WILL FOCUS ON INCREASING THE SPATIAL RESOLUTION AND IMPROVING THE SIGNAL STRENGTH FOR MEASUREMENTS AT ELEVATED PRESSURES. FOR THIS ITERATIVE RECONSTRUCTION TECHNIQUES WILL BE UTILIZED TO INTRODUCE CONSTRAINTS ON THC PHYSICAL RCALIZABILITY. TOGETHER WITH THC INSTALLATION OF AN ULTRA-HIGH RESOLUTION DETECTOR AND DUAL-ENERGY XCT WE TARGET TO ACHIEVE TEMPERATURE MEASUREMENTS WITH STANDARD DEVIATION BELOW 50 K AT SPATIAL RESOLUTION OF 25 MICROMETER. TO ACCOMPLISH THIS RESEARCH PLAN A MULTI-DISCIPLINARY RESEARCH TEAM IS ASSEMBLED THAT COMBINES UNIQUE EXPERTISE ON THC HIGH-FIDELITY COMBUSTION MODELING NUMERICAL METHODS AND OPTIMIZATION TECHNIQUES (IHME STANFORD) THE DEVELOPMENT OF ADVANCED XCTDIAGNOSTICS (HINSHAW STANFORD) AND OUR INDUSTRIAL PARTNER ALZETA CORPORATION (SULLIVAN) BRINGS OVER 30 YEARS OF EXPERIENCE ON THE DEVELOPMENT AND COMMERCIALIZATION OF POROUS BURNER TECHNOLOGIES TO THIS RESEARCH. $0 8/16/18 3 THE OBJECTIVE OF THIS PHASE-II RESEARCH PROGRAM IS THE FURTHER EXTENSION OF THE FEASIBILITY ASSESSMENT OF MATRIX-STABILIZED COMBUSTION AS LOW-EMISSION AND FUEL-FLEXIBLE COMBUSTION STRATEGY FOR GAS TURBINES (GTS). ESSENTIAL PROOF-OF-CONCEPT OF THIS TECHNOLOGY WAS ESTABLISHED IN PHASE I THROUGH (I) THE EXPERIMENTAL CHARACTERIZATION OFTHE PERFORMANCE AND STABILITY IN CONTINUOUS (>4()0 HOURS) AND LIFE-CYCLE (>1200 ON/OFF CYCLES) TESTS, DEMONSTRATING ACCEPTABLE PRESSURE LOSSES BELOW 1%, NO-EMISSIONS BELOW 15 PPM, AND ACHIEVING REQUIRED MAS.S-FLUX RATES; (II) THE IDENTIFICATION OF A NOVEL BURNER CONCEPT WITH VARIABLE POROSITY FOR EXTENDED FLAME STABILITY AND REDUCED PRESSURE DROP; (III) THE DEVELOPMENT OF ADVANCED X-RAY COMPUTED TOMOGRAPHY (XCT) DIAGNOSTICS FOR NON-INTRUSIVE VOLUMETRIC TEMPERATURE MEASUREMENTS INSIDE THE POROUS MATRIX; AND (IV) THE DEVELOPMENT OF COMPUTATIONAL MODELING CAPABILITIES FOR THE DESIGN OPTIMIZATION OF POROUS-MEDIA BURNERS (PIVIBS). THE PROPOSED PHASE-II RESEARCH PROJECT DIRECTLY ADDRESSES CRITICAL RESEARCH ASPECTS THAT WERE IDENTIFLED AS OUTCOME OFTHE PHASE-I EFFORT AND THROUGH FEEDBACK FROM NASA AND INDUSTRY BY (I) CONDUCTING PERFORMANCE TESTS FOR LIQUID FUELS AT ELEVATED PRESSURES THAT ARE REPRESENTATIVE OF FLIGHT CONDITIONS; (II) EXPERIMENTALLY DEMONSTRATING THE PERFORMANCE OFTHE NEWLY DEVELOPED BURNER CONCEPT; (III) PERFORMING PORE-RESOLVED SIMULATIONS OF MATRIX-STABILIZED COMBUSTION; AND (IV) FURTHER IMPROVING THE ACCURACY AND SPATIAL RESOLUHON OF THE XCT-DIAGNOSLICS. THE GOAL OF THE PROPOSED MEASUREMENT CAMPAIGN IS TO CHARACTERIZE THE PERFORMANCE (STABILITY, EMISSIONS, PRESSURE DROP, AND DURABILITY) OF PMBS USING JET-A AND ALTERNAFLVE LIQUID FUELS AT PRESSURES UP TO 20 BAR. FOR THIS, OUR EXISTING BURNER SETUP WILL BE MODIFLED FOR LIQUID-FUEL DELIVERY, AND WE WILL ACCESS THE CE-5 FACILITY AT THE NAS.A GLENN RESEARCH CENTER FOR PERFORMANCE TESFLNG AT ELEVATED TEMPERATURE AND PRESSURE CONDITIONS. THE NEWLY PROPOSED BURNER CONCEPT WITH CONTINUOUS FLAME .STABILIZATION WILL BE IMPLEMENTED AND BENCHMARKED TO EXPERIMENTALLY CONFLRM PREDICTED PERFORMANCE GAINS FOR REDUCED PRESSURE LOSSES, EMISSIONS, AND ENHANCED FLAME STABILITY. BY LEVERAGING OUR RECENTLY DEVELOPED NON-ADIABATIC COMBUSTION MT>DEL AND OUR AVAILABLE UNSTRUCTURED HIGH-FLDCLITY REACTIVE-FLOW SOLVER, PORE-RESOLVED SIMULATIONS WILL BE PERFORMED TO GAIN FUNDAMENTAL PHYSICAL UNDERSTANDING ABOUT FLAME STRUCTURE AND COUPLING PROCESSES BETWEEN HEAT-RELEASE DISTRIBUTION, SOLID/GAS HEAT EXCHANGE, AND HYDRODYNAMICS. USING METHODS THAT WERE ESTABLISHED IN PHASE I , THE MATRIX TOPOLOGY WILL BE DIRECTLY EXTRACTED FROM PMB-EXPERIMENTS USING MICRO-CT AND SURFACE RECONSTRUCTION. THIS ENABLES THE DIRECT COMPARISON AGAINST XCT-TEMPERATURE MEASUREMENTS, AND THESE PORE-RESOLVED SIMULATIONS WILL BE ANALYZED TO RECONCILE DEFICIENCIES OF LOW-ORDER MODELS. RESEARCH EFFORTS TO FURTHER ADVANCE THE XCT-DIAGNOSTICS FOR QUANTITATIVE 3D-TEMPERATURE MEASUREMENTS WILL FOCUS ON INCREASING THE SPATIAL RESOLUTION AND IMPROVING THE SIGNAL STRENGTH FOR MEASUREMENTS AT ELEVATED PRESSURES. FOR THIS, ITERATIVE RECONSTRUCTION TECHNIQUES WILL BE UTILIZED TO INTRODUCE CONSTRAINTS ON THC PHYSICAL RCALIZABILITY. TOGETHER WITH THC INSTALLATION OF AN ULTRA-HIGH RESOLUTION DETECTOR AND DUAL-ENERGY XCT, WE TARGET TO ACHIEVE TEMPERATURE MEASUREMENTS WITH STANDARD DEVIATION BELOW 50 K AT SPATIAL RESOLUTION OF 25 MICROMETER. TO ACCOMPLISH THIS RESEARCH PLAN, A MULTI-DISCIPLINARY RESEARCH TEAM IS ASSEMBLED THAT COMBINES UNIQUE EXPERTISE ON THC HIGH-FIDELITY COMBUSTION MODELING, NUMERICAL METHODS, AND OPTIMIZATION TECHNIQUES (IHME, STANFORD), THE DEVELOPMENT OF ADVANCED XCTDIAGNOSTICS (HINSHAW, STANFORD), AND OUR INDUSTRIAL PARTNER ALZETA CORPORATION (SULLIVAN) BRINGS OVER 30 YEARS OF EXPERIENCE ON THE DEVELOPMENT AND COMMERCIALIZATION OF POROUS BURNER TECHNOLOGIES TO THIS RESEARCH. Other Administrative Action $0 3/21/18