Abstract: An indirect-fired biomass-fueled gas turbine system with a combustor for combustion of biomass particles to produce a combustion gas, a heat exchanger providing a heat exchange relationship between combustion gas from the combustor and compressed air, and a gas turbine. The combustor may be a cyclonic combustor with a combustion liner forming a combustion chamber, a biomass feed inlet at one end of the combustion chamber formed through the combustion liner for receiving the biomass particles from a fuel feed system, wherein the biomass feed inlet is formed so that the biomass particles are introduced into the combustion chamber with a tangential component, and a plurality of air tuyeres formed through the combustion liner for receiving air, wherein at least one of the air tuyeres is arranged to introduce the air into the combustion chamber with a tangential component.

Abstract: A method and apparatus for sensing the velocity of a fluid flow, especially within the boundary layer of a fluid flow path through a compressor. A reference flow under constant pressure is established through an orifice dividing two plenum chambers, and directed through a flow sensing opening in a probe positioned in the flow to be sensed. The flow sensing opening is slightly larger than the orifice. A relative pressure indicator connected to the two plenum chambers indicates the velocity of the sensed fluid flow. The flow sensing opening is arranged so that the normal reference flow of fluid therethrough is in the same direction as the normally expected flow direction of the flow to be sensed.