Investigation effects of different calorific values and operating conditions on biogas flame: a CFD study

Cellek, Mehmet Salih; Demir, Usame; Coskun, Gokhan

doi:10.1080/15567036.2024.2368489

Energy Sources, Part A: Recovery, Utilization, and Environmenta

2024

DOI: 10.1080/15567036.2024.2368489

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Investigation effects of different calorific values and operating conditions on biogas flame: a CFD study

Mehmet Salih Cellek,

Usame Demir,

Gokhan Coskun

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2024

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Cited by 1 publication

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CH4-CO2 Fuel Mixture Combustion and Emission Characteristics in a Combi Boiler Combustor

Toslak,

Variyenli,

Karyeyen

2024

Journal of Polytechnic

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Biogas can be obtained from agricultural, animal, and waste, replacing natural gas in heating systems. Because of that, studying its combustion characteristics will be valuable. This study investigates biogas combustion characteristics in a natural gas-powered heating system. Various CH4-CO2 biogas fuel mixtures were analyzed experimentally and numerically for a thermal power of 13 and 31 kW. In the experimental part of the study, the fuel mixtures were burned, and the temperature and the NOX were measured. The standard k-ε turbulence model and Eddy Dissipation Concept were used in the present study's numerical part. The model was validated with the measured data. The modeling results are in agreement with the measurements. Various fuel mixtures were then modeled to seek varying inlet temperature and O2 concentration effects on the combustion characteristics of the biogas fuel mixtures studied. It was concluded that as the amount of CO2 in the fuel mixture was increased the flame temperature decreased linearly from about 1900 K to 1775 K. NOx concentrations in the combustion product decreased from about 10 ppm to below 2 ppm. It was also concluded that air preheating and change in O2 concentration in the oxidizer affected the flame temperatures and NOx considerably.

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CH4-CO2 Fuel Mixture Combustion and Emission Characteristics in a Combi Boiler Combustor

Toslak,

Variyenli,

Karyeyen

2024

Journal of Polytechnic

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show abstract

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Investigation effects of different calorific values and operating conditions on biogas flame: a CFD study

Cited by 1 publication

References 45 publications

CH4-CO2 Fuel Mixture Combustion and Emission Characteristics in a Combi Boiler Combustor

CH4-CO2 Fuel Mixture Combustion and Emission Characteristics in a Combi Boiler Combustor

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