Computational Analysis of Shrouded Ejector Effect on Starting Vortex and Combustion Efficiency in Pulse Detonation Combustor with Different Fuels

Debnath, Pinku; Pandey, Krishna Murari

doi:10.1080/00102202.2023.2280585

Combustion Science and Technology

2023

DOI: 10.1080/00102202.2023.2280585

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Computational Analysis of Shrouded Ejector Effect on Starting Vortex and Combustion Efficiency in Pulse Detonation Combustor with Different Fuels

Pinku Debnath,

Krishna Murari Pandey

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Cited by 3 publications

References 37 publications

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Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

Debnath,

Pandey

2024

Arab J Sci Eng

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Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

Debnath,

Pandey

2024

Arab J Sci Eng

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An experimental study on thermoacoustic instabilities of non-premixed combustion using internal flue gas recirculation

Liu,

Pan,

et al. 2025

Experimental Thermal and Fluid Science

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Experimental Study and Application Prospects of Coal Dust/Methane/Oxygen Pulse Detonation Performance: Coal Dust Equivalence Ratio and Types

Guo,

Ge,

Guo

et al. 2024

ACS Omega

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In order to achieve reliable application of coal in pulse detonation combustion chambers, this study explored the influence mechanism of equivalence ratio and coal type (lignite, anthracite) on the detonation characteristics of coal/methane/ oxygen methane-solid two-phase fuel. A high-energy ignition device was used to ignite the preblast methane fuel, and the hightemperature and high-pressure energy generated directly initiated the detonation of coal/methane/oxygen methane-solid two-phase fuel. The experimental results are as follows: (1) The maximum detonation pressure of coal/methane/air fuel is positively correlated with the initial pressure. With the increase of the φ global , the maximum detonation pressure of the two types of coal gradually increases. To be specific, when the φ global rises from 0.5 to 1.6, the sensitivity of lignite and anthracite to the maximum detonation pressure with respect to the initial pressure increases from 4.56 to 6.11 and 5.48, respectively; (2) In terms of detonation flame and maximum pressure wave velocity, anthracite shows better dynamic performance than lignite. The maximum velocity of detonation flame and pressure wave is achieved when the φ global is 1.4.(3) In terms of detonation thrust performance, as the φ global increases from 0.5 to 1.6, the rate of increase in average thrust of the two types of coal first increases and then decreases. Compared with lignite, anthracite has a wider time domain and higher peak value in the average thrust curve and the generated detonation wave displays a greater impulse. The experimental data and conclusions obtained in this study are of practical significance for realizing the engineering application of pulverized coal detonator power generation.

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Computational Analysis of Shrouded Ejector Effect on Starting Vortex and Combustion Efficiency in Pulse Detonation Combustor with Different Fuels

Cited by 3 publications

References 37 publications

Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

An experimental study on thermoacoustic instabilities of non-premixed combustion using internal flue gas recirculation

Experimental Study and Application Prospects of Coal Dust/Methane/Oxygen Pulse Detonation Performance: Coal Dust Equivalence Ratio and Types

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