Performance of Lean-Burn Natural-Gas-Fueled Engines - On Specific Fuel Consumption, Power Capacity and Emissions

The performance of lean-burn stationary engines fueled by natural gas has been investigated. Relationships have been established between design parameters and process conditions on the one hand and power capacity, specific fuel consumption and emissions on the other. The paper shows that limitations for the NO_x emissions restrict the developments in cylinder load and shaft efficiency. Opportunities exist for decreasing the CO and HC emissions.