Burner Development and Operability Issues Associated with Steady Flowing Syngas Fired Combustors

A Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations

“…Due to the high flame temperatures and NO x emissions associated with high hydrogen content fuels like syngas, a common combustion strategy is to operate in the lean premixed mode (Richards et al, 2001). In such conditions, combustion stability depends more highly on autoignition characteristics (Lieuwen et al, 2008). As for the autoignition characteristics of syngas mixtures at typical gas turbine operating conditions (20 bar and above), a compilation of recent experimental and computational studies was reported in Petersen et al (2007), showing a wide range of discrepancies between measurements and predictions based on homogeneous adiabatic calculations with detailed chemistry, especially at low temperature (< 1000 K) conditions.…”

Burning syngas in a high swirl burner: Effects of fuel composition

“…The high-pressure hot gas is expanded through the turbine to generate electric power. However, developing technology relevant to practical applications such as gas turbines, boilers and furnaces capable of combusting 2 H -rich and CO-rich syngas requires understanding of more fundamental combustion properties [7]. Since the operability issues of burning syngas fuels in these applications generally involve complex, poorly understood interactions between swirling flow dynamics, it is necessary to establish a framework for the combustion characteristics of syngas fuels particularly in the presence of swirl [8].…”

Combustion of Renewable Biogas Fuels

“…The combustion systems using lean combustion technologies cannot be used for syngas fuels with high hydrogen (60%-70%) content due to the potential for flashback of the flame into the fuel injection systems. Non-premixed combustors are more appropriate for synags fuels with high hydrogen contents [2]. The flame temperature and NO x emissions can be controlled by diluting the syngas fuels with inert gas.…”

“…For the same combustor power, the fuel mass flow for syngas and biogas should be much greater than for natural gas, due to the lower heating values. Lean turbulent premixed combustions are usually used for gas turbine engines to control the NO x emissions [2]. The combustion systems using lean combustion technologies cannot be used for syngas fuels with high hydrogen (60%-70%) content due to the potential for flashback of the flame into the fuel injection systems.…”