Analysis of the combustion process of syngas fuels containing high hydrocarbons and nitrogen compounds in Zonal Volumetric Combustion technology

Szewczyk, Dariusz; Ślefarski, Rafał; Jankowski, Radosław

doi:10.1016/j.energy.2017.01.040

Cited by 17 publications

(11 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The division of these two parts is realized aerodynamically through appropriate swirling of air stream from secondary air inlet and shape of combustion chamber. The detailed description and combustion characteristics were presented in previous articles (Szewczyk et al, 2015;Szewczyk, Ślefarski and Jankowski, 2017).…”

Section: Fig 1: Scheme Of Two Stage Combustion Conceptmentioning

confidence: 99%

See 1 more Smart Citation

High temperature two stage combustion concept for ammonia contained syngas fuel utilization

Czyżewski¹,

Jójka²,

Ślefarski³

2018

Engineering Mechanics

View full text Add to dashboard Cite

This paper provides results of numerical study of synthesis gas combustion with special emphasis on fuel contained ammonia utilization. Ammonia is reference component of nitrogen contained particle and its influence on nitric oxides emission during combustion was investigated. The combustion process was performed with use of modern concept of High Temperature Air Combustion (HiTAC) technology called High Temperature Two Stage Combustion (HTTSC). The research was focused on numerical simulation of NO formation during this process. Numerical analysis of nitric oxides formation along the combustion chamber was conducted. Three numerical models were investigated using Cantera reaction kinetics environment; GRI 3.0, Tian and Konnov. The lowest emission rates were obtained for local air excess ratios λ = 0.45 and 0.6 on the first combustion stage. Absolute NO emission for GRI 3.0 was 24% higher than other mechanisms and trend for λ = 0.45 indicated greater emission than for 0.6. For all cases the final oxygen content in flue gases was kept at level of 7.9%. The results of numerical analysis indicated high compliance with experimental outcomes for high contents of ammonia in gas fuel.

show abstract

Section: Fig 1: Scheme Of Two Stage Combustion Conceptmentioning

confidence: 99%

“…The resultant oxygen concentration correspond to air excess ratio λ = 0.6. (Szewczyk, Ślefarski and Jankowski, 2017)…”

Section: Fuel Description and Combustion Configurationmentioning

confidence: 99%

High temperature two stage combustion concept for ammonia contained syngas fuel utilization

Czyżewski¹,

Jójka²,

Ślefarski³

2018

Engineering Mechanics

View full text Add to dashboard Cite

show abstract

“…A separate group of papers are those describing the transport processes between free jets and rotating surfaces, Sara et al [16], descriptions of the correlations between the stresses on the impinged walls, appearing as a result of free jet inflow and helpful with corrosion reduction, Demoz and Dabros [17], descriptions of free jet deformation due to the action of transverse jets in the outlet nozzle, Tamburello and Amitay [18], transverse flame deformation under external influence, Hourri et al [19], or finally the tests on velocity distribution in the fluidal deposit the gas jet flows through, Ounnar et al [20]. The papers referred here indicate the wide use of free and impinging jets in technology [7,18,21,22]. Most of the authors indicate that the location of the phenomenon is in thermal-flow machines, Slefarski et al [23], and this type of flows is within the restricted flow class.…”

Section: Introductionmentioning

confidence: 97%

The analysis of a jet structure inside a reverse chamber

2019

View full text Add to dashboard Cite

The paper presents experimental results for an axisymmetrical jet flow impinging with outflow through a reverse chamber. The test results include the average distributions and fluctuations of pressures on the impinged wall and the side wall of the chamber. The presented results cover further the mean velocities and the velocity fluctuations in the reverse chamber in relation to two velocity components: axial and radial. The purpose of the paper is to indicate the differences between different flow situations: the axisymmetrical free jet, the impinging jet hitting a flat surface, and a flow geometrically alike, however, restricted in outflow through a reverse annular chamber.

show abstract

“…From the burner designs offered on the market, we distinguish old and new type burners with an improved air supply system. The latest research issues are guided many times towards the use of fuels different from conventional fuels [1,2,3]. Natural gas and gases generated in the refining of crude oil are no longer the only ones that are used in the industry and the municipal and household sector.…”

Section: Introductionmentioning

confidence: 99%

The influence of geometry of primary air channels in standard retort burners on dust emission

Ciupek

Bartoszewicz

2019

MATEC Web Conf.

View full text Add to dashboard Cite

The article presents the analysis of dust emissions from a low power boiler fired with various solid fuels. The boiler, presented for testing, met the emission conditions for boilers made in the third class in accordance with the PN-EN 303-5: 2012 standard. The solid fuel boiler was equipped with two different retort burners with automatic fuel supply. For the test were used a first generation retort burner with a fixed rim and the next were used second generation retort burner provided with a rotary rim. Both constructions differ in the geometrical model of the primary air supply system to the furnace. During the tests, the work of the burners was controlled using a microprocessor temperature controller. During the research, the rotation time of the screw supplying the fuel through the retort to the furnace was changed, as well as the rotational speed of the blast fan impeller responsible for supplying the combustion air. The purpose of the tests was to check whether the boiler will meet the highest environmental class regardless of the technical parameters of the burner and fuel used. The article describes the research methodology and analysis of the results obtained. The effect of the tests carried out is a comparison of average dust emission values depending on the fuel used and the work settings of a given burner. The test results are a prerequisite for further research work in terms of the impact of primary air supply on the emission of harmful substances.

show abstract

Analysis of the combustion process of syngas fuels containing high hydrocarbons and nitrogen compounds in Zonal Volumetric Combustion technology

Cited by 17 publications

References 29 publications

High temperature two stage combustion concept for ammonia contained syngas fuel utilization

High temperature two stage combustion concept for ammonia contained syngas fuel utilization

The analysis of a jet structure inside a reverse chamber

The influence of geometry of primary air channels in standard retort burners on dust emission

Contact Info

Product

Resources

About