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Parametric Study of Emissions from Low Calorific Value Syngas Combustion, with Variation of Fuel Distribution, in a Prototype Three Sector Burner

Författare

Redaktör

  • Geoffrey Myers

Summary, in English

The emission composition is measured for a prototype burner

while varying the equivalence ratio in discrete portions of the

burner. The burner is a three sector system, consisting of a

separate igniter, pilot/stabilizer and main burner. The design

allows for discrete control of equivalence ratio in each of the

three sectors. The ignition sector, designated RPL (Rich-

Pilot-Lean), operates from rich to lean equivalence values,

and serves to ignite the pilot sector, which, in turn, stabilizes

the main combustion sector. All three burner sections are

premixed. The burner is operated at atmospheric pressure

with inlet flows heated to 650 K (±8 K). Tests were performed

for three gases: methane, a model syngas (10% CH4,

22.5% CO, 67.5% H2), and dilute syngas. The dilute gas

includes sufficient nitrogen to lower the heating value to 15

MJ/m3. The model syngas and diluted syngas are

representative of fuels produced by gasification process. The

burner emissions, specifically, CO, CO2, O2 and NOx, are

measured while holding the RPL equivalence value constant

and varying the equivalence ratio of the pilot and main

sectors. The equivalence ratios for pilot and main sectors are

chosen such that the total burner equivalence ratios remain

constant during a test sequence. The target total equivalence

ratio for each gas is chosen such that all experiments should

have the same flame temperature.

Publiceringsår

2011

Språk

Engelska

Publikation/Tidskrift/Serie

ASME paper / GT

Dokumenttyp

Konferensbidrag

Förlag

American Society Of Mechanical Engineers (ASME)

Ämne

  • Energy Engineering

Nyckelord

  • Emissions
  • Syngas
  • Hydrogen
  • Combustion
  • Experimental
  • burner

Conference name

ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition

Conference date

2011-06-06 - 2011-06-10

Conference place

Vancouver, Canada

Status

Published

ISBN/ISSN/Övrigt

  • GT2011-45689