Detail publikace

The Effect of Inert Fuel Compounds on Flame Characteristics

HUDÁK, I. SKRYJA, P. BOJANOVSKÝ, J. JEGLA, Z. KRŇÁVEK, M.

Anglický název

The Effect of Inert Fuel Compounds on Flame Characteristics

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

To describe the effects of inert compounds in gaseous fuel, experiments on three different process burners (staged fuel burner, staged air burner, and low-calorific burner) were carried out. The tested burners are commercially available, but they were specially designed for experimental usage. Tests were carried out in the semi-industrial burner testing facility to investigate the influence of inert gases on the flame characteristics, emissions, and heat flux to the combustion chamber wall. Natural gas was used as a reference fuel, and, during all tests, thermal power of 500 kW was maintained. To simulate the combustion of alternative fuels with lower LHV, N2 and CO2 were used as diluents. The inert gas in the hydrocarbon fuel at certain conditions can lower NOx emissions (up to 80%) and increase heat flux (up to 5%). Once incombustible compounds are present in the fuel, the higher amount of fuel flowing through nozzles affects the flow in the combustion chamber by increasing the Reynolds number. This can change the flame pattern and temperature field, and it can be both positive and negative, depending on actual conditions.

Anglický abstrakt

To describe the effects of inert compounds in gaseous fuel, experiments on three different process burners (staged fuel burner, staged air burner, and low-calorific burner) were carried out. The tested burners are commercially available, but they were specially designed for experimental usage. Tests were carried out in the semi-industrial burner testing facility to investigate the influence of inert gases on the flame characteristics, emissions, and heat flux to the combustion chamber wall. Natural gas was used as a reference fuel, and, during all tests, thermal power of 500 kW was maintained. To simulate the combustion of alternative fuels with lower LHV, N2 and CO2 were used as diluents. The inert gas in the hydrocarbon fuel at certain conditions can lower NOx emissions (up to 80%) and increase heat flux (up to 5%). Once incombustible compounds are present in the fuel, the higher amount of fuel flowing through nozzles affects the flow in the combustion chamber by increasing the Reynolds number. This can change the flame pattern and temperature field, and it can be both positive and negative, depending on actual conditions.

Klíčová slova anglicky

low-calorific burner; low NOx burner; combustion; inert gas; alternative gaseous fuels

Vydáno

31.12.2021

Nakladatel

MDPI

Místo

Basel, Switzerland

ISSN

1996-1073

Ročník

15

Číslo

1

Strany od–do

1–18

Počet stran

18

BIBTEX


@article{BUT175539,
  author="Igor {Hudák} and Pavel {Skryja} and Jiří {Bojanovský} and Zdeněk {Jegla} and Martin {Krňávek},
  title="The Effect of Inert Fuel Compounds on Flame Characteristics",
  year="2021",
  volume="15",
  number="1",
  month="December",
  pages="1--18",
  publisher="MDPI",
  address="Basel, Switzerland",
  issn="1996-1073"
}