Investigation of Surface Combustion Concepts for NOx Control in Utility Boilers and Stationary Gas Turbines.

摘要

The report reviews the state of the art of concepts of surface combustion (that occurring near a solid surface) and assesses their applicability to large utility boilers and stationary gas turbines. Catalytic combustion looks promising for gas turbines. However,comprehensive experimental and theoretical investigations are required for a meaningful assessment. Catalytic combustion is not considered feasible for existing steam boilers,but might apply to newly designed units. Sintered metal porous-plate combustors with imbedded cooling tubes (a non-catalytic concept),although technically feasible for steam boilers and possibly for low-pressure ratio gas turbines,has packaging problems and requires gaseous and distillate fuels. (Modified author abstract)