Fuel lines with fuel flow control valves connect the fuel manifold with a fuel supply. Disposed immediately upstream of the inlet ends of the fuel/air premixing passages is a fuel manifold for delivering fuel to the passages. The liquid fuel pipe defines a liquid fuel flow passage that extends from the inlet end and substantially downstream of the flange portion proximate the discharge end.Ībstract: A combustor with a flashback arresting system for producing a hot gas by burning premixed fuel and compressed air having fuel/air premixing passages, each of the passages having an inlet end and a discharge end. The liquid fuel pipe has an inlet end and discharge end with the discharge end adapted to removably receive the nozzle tip. The receptacle is adapted to removably receive the liquid fuel pipe and the nozzle tip. The outer wall and flange portion define a receptacle that extends from the inlet end and substantially downstream to the discharge end. The flange portion is adapted to be securely coupled with the liquid fuel pipe to the combustion turbine. The atomizing cylinder comprises an outer wall having an inlet end and opposing discharge end, and flange portion formed proximate the inlet end. A nozzle tip that is adapted to removably mount with a liquid fuel pipe is provided. Burning of the fuel in air at lean mixtures allows for minimal operation of a conventional pilot nozzle assembly so as to reduce the undesirable formation of NOx.Ībstract: A dual fuel nozzle for a combustion turbine having a swirl cap that is adapted to securely mount with an atomizing cylinder proximate its discharge end.
A stable flame within the combustor provides for minimum acoustic disturbance and low overall pressure losses within the combustor provide for high operating efficiency levels of the turbine apparatus. Due to the high velocities of the air-fuel mixture in the vicinity of the flame-holder, as a result of the fuel-air mixing in the venturis, destructive flash back conditions are obviated. A vee-gutter flame holder is positioned downstream of the array of venturis for holding a combustion flame within the combustor at stable conditions. The combustor has a plurality of venturis in flow communication with a corresponding number of fuel lances such that fuel injected from each lance into a corresponding venturi is mixed with high velocity air also flowing into the venturis. The detector apparatus has a transmitter section and a receiver section displaced a preselected distance from each other.Ībstract: An ultra-low NOx gas turbine combustor having a dual fuel capability. The method has the steps of providing a vehicle and mounting a natural gas detector apparatus to the vehicle. A method of detecting natural gas is also provided.
The receiver section receives a portion of the light beam onto an electro-optical etalon for detecting the gas. The apparatus is arranged such that natural gas intercepts the beam path and absorbs representative wavelengths of the light beam. The transmitter section has a light source transmitting a light beam to the receiver section forming a beam path therebetween. The detector apparatus includes a transmitter section and a receiver section displaced a preselected distance from each other. A natural gas detector apparatus is mounted to the vehicle so that the vehicle transports the detector apparatus over an are of interest at speeds of up to 20 miles per hour. Abstract: A natural gas detection system is provided for use with a vehicle.
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