Numerical analysis of nitrogen oxides in turbulent lifted H2/N2 cabra jet flame issuing into a vitiated coflow

Bazooyar, Bahamin; Shariati, Ahmad; Khosravi‐Nikou, Mohammad Reza; Hashemabadi, Seyed Hassan

doi:10.1016/j.ijhydene.2019.03.166

Cited by 17 publications

(5 citation statements)

References 90 publications

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“…Autoignition is the main flame stabilisation mechanism in the majority of burners [42]. The ignition delay time is an important combustion parameter that can determine the behaviour of different fuels, particularly in gas turbines.…”

Section: Autoignition Delaymentioning

confidence: 99%

Comparative analysis of ammonia combustion for domestic applications

Bazooyar

Coomson²,

Manović³

et al. 2023

Journal of the Energy Institute

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Section: Autoignition Delaymentioning

confidence: 99%

Comparative analysis of ammonia combustion for domestic applications

Bazooyar

Coomson²,

Manović³

et al. 2023

Journal of the Energy Institute

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“…The flame structure and stabilization normally depend on the local flow conditions, mixing and design of the combustor [50,51]. Below, the designed combustor will be analyzed in terms of flame stabilization and potential of pollutant formation.…”

Section: Model Validationmentioning

confidence: 99%

The design strategy and testing of an efficient microgas turbine combustor for biogas fuel

Bazooyar

Darabkhani

2021

Fuel

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“…Conventionally, the occurrence of homogeneous combustion at large scale was used to generate energy [13]. The homogeneous reactions of renewable fuels at the industrial scale are usually challenging as the clean alternative fuel characteristics are usually different from the conventional ones with some like biogas having lower calorific values [14] and the others like hydrogen having wide flammability range and high reactive propensity [15]. These different extreme characteristics of the alternative fuels are limiting factors in the occurrence of homogeneous combustion in the majority of practical systems (i.e.…”

Section: Introductionmentioning

confidence: 99%

Direct Numerical Simulation of Packed and Monolith Syngas Catalytic Combustors for Micro Electrical Mechanical Systems

Bazooyar

Zhu

Manović

et al. 2023

Preprint

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In this work, a catalytic combustor for micro electrical mechanical system for syngas was designed and analysed using Direct Numerical Simulation (DNS) in conjunction with finite rate chemistry. The effect of catalyst (platinum (Pt), palladium (Pd), palladium oxide (PdO), and rhodium (Rh)), bed type (packed with twelve catalyst shapes and four catalyst monolith), shapes (packed: cylinder, hollow cylinder, four cylinder, single cylinder, single cylinder, crosswebb, grooved, pall-ring, hexagonal, berl-saddle, cube, intalox-saddle, and sphere, monolith: triangular, rectangular, hexagonal, and circular), and operating conditions (inlet temperature and velocity, fuel/air ratio, different concentrations CH4-H2-CO) on combustion efficiency and pressure drop were studied using different parameters (combustion efficiency (η), pressure drop, effectiveness factor ( ψ ), and fuel conversions (H2 and CH4 conversions)). Analysis under different operating conditions reveals that the designed combustor can operate effectively with syngas of varying compositions with a high combustion efficiency of over 85%. Combustion mainly takes place on the surface of the catalyst without gas phase reaction with pressure drops between 18 Pa to 155 Pa. The intalox saddle shape catalysts resulted in the bed effectiveness factor 0.931. The Damköhler for hydroxyl radicals (OH) over the entire length of the reactor is uniformly distributed and well below 3, suggesting uniform combustion.

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Numerical analysis of nitrogen oxides in turbulent lifted H2/N2 cabra jet flame issuing into a vitiated coflow

Cited by 17 publications

References 90 publications

Comparative analysis of ammonia combustion for domestic applications

Comparative analysis of ammonia combustion for domestic applications

The design strategy and testing of an efficient microgas turbine combustor for biogas fuel

Direct Numerical Simulation of Packed and Monolith Syngas Catalytic Combustors for Micro Electrical Mechanical Systems

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