microwave supported plasma combustion enhancement of
Microwave-assisted Hydrocarbon Flame Speed Enhancement
CiteSeerXDocument Details (Isaac Councill Lee Giles Pradeep Teregowda) Long autoignition delay time and low lateral flame propagation speed are among the key problems in developing high-speed combustors for ram/scramjet engines. Plasma-assisted combustion can help to solve these problems. Estimates indicate that uniform volumetric nonequilibrium cold plasma ignition of fuel-air mixtures
Get PriceMicrowave-Plasma-Coupled Re-Ignition of Methane-and
microwave-plasma applicator system used for plasma-assisted ig-nition and combustion research works. Results indicate that for re-ignition to occur the electric field must be strong enough to fully establish a weakly ionized and self-sustained plasma dis-charge and with elevated radical concentrations. The re-ignition
Get PriceMicrowave-Plasma-Coupled Re-Ignition of Methane-and
microwave-plasma applicator system used for plasma-assisted ig-nition and combustion research works. Results indicate that for re-ignition to occur the electric field must be strong enough to fully establish a weakly ionized and self-sustained plasma dis-charge and with elevated radical concentrations. The re-ignition
Get PriceSwirl diffusion flame control by the plasma swirler
Apr 25 2011 · In this paper the design of plasma swirler is presented in detail. The experiments were carried out to verify the feasibility of using plasma swirler to control diffusion flame. The plasma swirler consists of multiple electrodes with staggered arrangement on both sides of combustor s expansion section. The plasma swirler can enhance combustion stability through ionizing the air to produce
Get PriceFossil Fuel-Free Jet Propulsion with Air PlasmasAIP
May 05 2020 · Fossil Fuel-Free Jet Propulsion with Air Plasmas. WASHINGTON May 5 2020 — Humans depend on fossil fuels as their primary energy source especially in transportation. However fossil fuels are both unsustainable and unsafe serving as the largest source of greenhouse gas emissions and leading to adverse respiratory effects and devastation
Get PriceOH(A X) radicals in microwave plasma-assisted combustion
A novel microwave plasma-assisted combustion (PAC) system which consists of a microwave plasma-assisted combustor a gas flow control manifold and a set of optical diagnostic systems was developed as a new test platform to study plasma enhancement of combustion. Using this system we studied the state-resolved OH(A X) radicals in the plasma-assisted combustion and ignition of a
Get PriceOH(A X) radicals in microwave plasma-assisted combustion
A novel microwave plasma-assisted combustion (PAC) system which consists of a microwave plasma-assisted combustor a gas flow control manifold and a set of optical diagnostic systems was developed as a new test platform to study plasma enhancement of combustion. Using this system we studied the state-resolved OH(A X) radicals in the plasma-assisted combustion and ignition of a
Get PriceCMLMicrowave Assisted Combustion
Abstract The enhancement of laminar flame development using microwave-assisted spark ignition has been investigated for methane-air mixtures at a range of initial pressures and equivalence ratios in a 1.45 liter constant volume combustion chamber.
Get PriceMicrowave enhancement of energetic materials combustion
CHAPTER 3.MICROWAVE PLASMA ENHANCEMENT OF MULTIPHASE FLAME ON- Figure 3.4 Two representative high magnification image sequences of microwave combustion enhancement of a small ( 150 µm top panel) aluminum agglomerate and large ( 600 µm bottom panel) agglomerate near the burning support throughout this research.
Get PriceFlame Enhancement by Microwave-Induced Plasma The Role of
Oct 28 2016 · (2016). Flame Enhancement by Microwave-Induced Plasma The Role of Major Bath Gas N2 Versus Ar. Combustion Science and Technology Vol. 188 The 25th International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS) pp. .
Get PriceA Novel Combustion Platform for Microwave Plasma-Assisted
Apr 26 2018 · Abstract A novel plasma-assisted combustion (PAC) platform is developed and characterized with the ability to decouple the underlying mechanisms and aid in the study of PAC. This unique platform allows for the initial separation and controlled coupling of the plasma the fuel and the oxidizer streams in different combinations which is useful in investigating the various reaction
Get PriceCombustion and Reformulation Enhancement Characteristics
The cold gas efficiencies under microwave input power of 350 and 750 W in the case of plasma-assisted conditions are 1.6 and 2.1 times higher than the cold gas efficiency in the case of normal conditions because the produced gas volume increases and the mole fractions of combustible gas increase with increasing the microwave input power.
Get PriceEnhancement of burning velocity in premixed burner flame
Sep 02 2009 · Therefore the enhancement factor of S ON /S OFF 1.19 obtained experimentally is explained by the increase in the flame temperature of T ON /T OFF 1.04 for T OFF = 2500 K if the combustion chemistry is in thermal equilibrium even when the flame is irradiated by the microwave
Get PriceMicrowave enhanced gliding arc plasma assisted supersonic
Abstract To study the effect of microwave enhanced gliding arc plasma on supersonic combustion an experiment is carried out on a direct-connected scramjet facility that has installed microwave and gliding arc structures. A single-stage cavity is used as flame stabilizer. The inlet Mach number of
Get PriceMicrowave-assisted Hydrocarbon Flame Speed Enhancement
CiteSeerXDocument Details (Isaac Councill Lee Giles Pradeep Teregowda) Long autoignition delay time and low lateral flame propagation speed are among the key problems in developing high-speed combustors for ram/scramjet engines. Plasma-assisted combustion can help to solve these problems. Estimates indicate that uniform volumetric nonequilibrium cold plasma ignition of fuel-air mixtures
Get PriceA Novel Combustion Platform for Microwave Plasma-Assisted
Apr 26 2018 · Abstract A novel plasma-assisted combustion (PAC) platform is developed and characterized with the ability to decouple the underlying mechanisms and aid in the study of PAC. This unique platform allows for the initial separation and controlled coupling of the plasma the fuel and the oxidizer streams in different combinations which is useful in investigating the various reaction
Get PriceMicrowave plasma-assisted premixed flame combustion
A compact microwave plasma/combustion torch has been operated at atmospheric pressure in both plasma-only and plasma-assisted premixed combustion modes. The torch burns CH4∕O2 mixtures with plasma enhancement that modifies combustion flame structure flame size and flame power density. The microwave energy also extends the fuel-lean burn limits.
Get PriceControl of Microwave Plasma for Ignition Enhancement Using
Sep 04 2017 · The Microwave Discharge Igniter (MDI) was developed to create microwave plasma for ignition improvement inside combustion engines.
Get PriceInfluence of microwave on structure of supersonic
Abstract. Abstract Plasma assisted combustion in supersonic flow is a promising method. The effect of microwave on the flame structure is studied by feeding low-power microwave into the combustor of the scramjet. The combustor inlet flow Mach number is 2.5. Room temperature ethylene is injected perpendicular to the combustor wall.
Get PriceSupported by AFOSR MURI Fundamental mechanisms
Pulsed microwave control of flames Greater than 20 Flame speed enhancement Coupling efficiency greater than 50 < 10 of the flame power Factor of two reduction in equivalence ratio limit. Radar REMPI measurement of NO and radicals in flames. Pulsed microwave coupling to laser pre ionization Distributed ignition
Get PriceInfluence of microwave on structure of supersonic
Abstract. Abstract Plasma assisted combustion in supersonic flow is a promising method. The effect of microwave on the flame structure is studied by feeding low-power microwave into the combustor of the scramjet. The combustor inlet flow Mach number is 2.5. Room temperature ethylene is injected perpendicular to the combustor wall.
Get PriceComparative study on microwave plasma-assisted combustion
May 29 2014 · Abstract A novel microwave plasma-assisted combustion (PAC) system which consists of a microwave plasma-assisted combustor a gas flow control manifold and a set of optical diagnostic system was developed as a new test platform to study plasma enhancement of combustion. Employing this PAC system a comparative study on microwave plasma-assisted combustion
Get PriceMicrowave Seeded Plasma Enhancement of Composite
Pulsed Microwave-Plasma Coupling to Composite Solid Propellants. 5 January 2017. Recommended. An engineering model for temperature sensitivity of AP composite propellants. Microwave-Supported Plasma Combustion Enhancement of Composite Solid Propellants Using Alkali Metal Dopants .
Get Priceth International Workshop and Exhibition on Plasma
subsonic and supersonic plasma igniters multi-mode plasma pilot devices (combustion sustainers) microwave and hybrid type plasma torch (RF transient DC) with reverse vortex flows plasma assisted "Tornado" combustors and fuel reformers will be demonstrated at the exhibition area of the IWEPAC-4.
Get PriceMicrowave Enhancement of Lean/Dilute Combustion in a
Microwave Enhancement of Lean/Dilute Combustion in a Constant-Volume Chamber High dilution engines have been shown to have a significant fuel economy improvement over their non-dilute counterparts. Much of this improvement comes through an increase in compression ratio enabled by the high knock resistance from high dilution.
Get PricePLASMA ASSISTED COMBUSTION GASIFICATION AND
The first practical applications of different plasma sources for ignition and combustion enhancement date back to the 1960s and 1970s. The first PAC conference was organized by the 3.5 Microwave ignition in high speed flows (Igor I. Esakov Plasma Support of Soal Ignition and Combustion (Vladimir E. Messerle
Get Price
