Emission characteristics of a novel low NOx burner fueled by hydrogen-rich mixtures with methane

• Autorzy: Dutka M. , Ditaranto M. , Løvås T.
• Języki publikacji: EN

Abstrakty

EN

The use of hydrogen-rich fuels may be challenging for burner designers due to unique properties of hydrogen compared to conventional fuels such as natural gas. Burner retrofit may be required to use hydrogen-enriched fuels in combustion systems that are designed for natural gas combustion. This study aimed to experimentally investigate NOx emissions from a novel low NOx burner fueled by methane-hydrogen mixtures. The burner was tested in a cylindrical combustion chamber at atmospheric pressure. Burner thermal load of 25 kW (LHV) and air-fuel equivalence ratio of 1.15 were maintained throughout the experimental campaign. The influence of burner design parameters on NOx emissions was tested for various fuel compositions using a statistically cognizant experimental design. The study revealed that shifting the burner head upstream can deliver NOx emission reduction. In contrast, supplying fuel to the burner through secondary fuel ports increases NOx emissions, particularly when the burner head is shifted upstream. The lowest predicted NOx emissions from the burner are below 9 ppmvd at 3% of O2 and 14 ppmvd at 3% of O2 for 5% and 30% mass fraction of hydrogen in the fuel, respectively.

Słowa kluczowe

EN

low NOx burner; hydrogen enrichment; nitrogen oxides; central composite design; bluff body

PL

palnik niskoemisyjny; wzbogacanie wodorem; tlenki azotu; centralny plan kompozycyjny; wir

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2015
• Tom: Vol. 95, nr 2
• Strony: 105--111
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Dutka M.

• Department of Energy and Process Engineering, Norwegian University of Science and Technology, Kolbjørn Hejes vei 1b, 7491 Trondheim, Norway

autor

Ditaranto M.

• SINTEF Energy Research, Sem Sælands vei 11, 7034 Trondheim, Norway

autor

Løvås T.

• Department of Energy and Process Engineering, Norwegian University of Science and Technology, Kolbjørn Hejes vei 1b, 7491 Trondheim, Norway

Bibliografia

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