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RISAerodynamic Investigation of Guide Vane Configurations Downstream a Rotating Detonation Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Any outlet restriction downstream of pressure gain combustion (PGC), such as turbine blades, affects its flow field and may cause additional thermodynamic losses. The unsteadiness in the form of pressure, temperature, and ...
Operational Strategies of Wet Cycle Micro Gas Turbines and Their Economic Evaluation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The simultaneous expansion of variable renewables and combined heat and power (CHP) plants in Europe has given rise to a discussion about their compatibility. Due to the concurrence of high wind power generation and high ...
Numerical and Experimental Study on the Tonal Noise Generation of a Radial Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The main focus of this work is on the geometrical modifications can be made to the fan wheel and to the volute tongue of a radial fan to reduce the tonal noise. The experimental measurements are performed by using the ...
Development of a Hydrogen Microgas Turbine Combustor: NOx Emissions and Secondary Air Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: On the way to defossilization, green hydrogen is a promising way to substitute natural gas (NG) and oil in the gas turbine industry. In the scope of the H2mGT project, a microgas turbine (mGT) burner with 100% hydrogen ...
Pressure Gain Combustion for Gas Turbines: Analysis of a Fully Coupled Engine Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The “Shockless Explosion Combustion” (SEC) concept for gas turbine combustors, introduced in 2014, approximates constant volume combustion (CVC) by harnessing acoustic confinement of auto-igniting gas packets. The resulting ...
Flow Field and Flame Dynamics of Swirling Methane and Hydrogen Flames at Dry and Steam Diluted Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The majority of recent stationary gas turbine combustors employ swirling flows for flame stabilization. The swirling flow undergoes vortex breakdown (VB) and exhibits a complex flow field including zones of recirculating ...
Laminar Burning Velocities and Emissions of Hydrogen–Methane–Air–Steam Mixtures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Humidified gas turbines using steam generated from excess heat feature increased cycle efficiencies. Injecting the steam into the combustor reduces NOx emissions, flame temperatures, and burning velocities, promising a ...
Swirl Flame Response to Simultaneous Axial and Transverse Velocity Fluctuations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this experimental study, we investigate the impact of transverse acoustic velocity fluctuations on flame response to axial velocity fluctuations. Such a scenario where a flame is under the influence of a 2D acoustic ...
Large Eddy Simulations of Hydrogen Oxidation at Ultra Wet Conditions in a Model Gas Turbine Combustor Applying Detailed Chemistry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Humidified gas turbines (HGT) offer the attractive possibility of increasing plant efficiency without the cost of an additional steam turbine as is the case for a combined gassteam cycle. In addition to efficiency gains, ...
Characterization of Different Actuator Designs for the Control of the Precessing Vortex Core in a Swirl-Stabilized Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The precessing vortex core (PVC) represents a helical-shaped coherent flow structure typically occurring in both reacting and nonreacting swirling flows. Until now, the fundamental impact of the PVC on flame dynamics, ...