Dual fuel nozzle system and apparatus

Abstract

In various embodiments, a dual fuel nozzle ( 200 ) for use in a gas 200 turbine engine is provided. The nozzle may be configured to supply and gas and a liquid. The dual fuel nozzle ( 200 ) may include an interior wall ( 217 ). The interior wall ( 217 ) may include a shoulder ( 219 ). The shoulder ( 219 ) may include one or more gas ports ( 216 ). Gas may be discharged through the gas ports ( 216 ) and penetrate a mixing zone.

What is claimed is: 
     
         1 . A gas turbine fuel nozzle, comprising:
 a housing, defining a mixing chamber including a transition zone, the housing comprising,
 an interior wall comprising a shoulder and defining a fuel port in the shoulder, 
 the fuel port configured to conduct a fuel into the mixing chamber, wherein the fuel propagates across a volume of the mixing chamber prior to reaching the transition zone. 
   
     
     
         2 . The gas turbine fuel nozzle of  claim 1 , further comprising a liquid supply. 
     
     
         3 . The gas turbine fuel nozzle of  claim 2 , wherein the liquid supply is configured to conduct a liquid to the transition zone. 
     
     
         4 . The gas turbine fuel nozzle of  claim 3 , wherein the liquid is at least one of a liquid fuel and water. 
     
     
         5 . The gas turbine fuel nozzle of  claim 1 , wherein the shoulder defines a plurality of fuel ports. 
     
     
         6 . The gas turbine fuel nozzle of  claim 1 , wherein the fuel port has a diameter of approximately 0.090 inches to approximately 0.110 inches. 
     
     
         7 . The gas turbine fuel nozzle of  claim 1 , wherein the fuel propagates away from the interior wall. 
     
     
         8 . A dual fuel nozzle, comprising:
 a gas supply;   an interior wall comprising a shoulder, the shoulder defining a gas port;   a housing defining a gas discharge zone configured to receive a gas from the gas port, the gas discharge zone comprising a transition zone;   a liquid supply; and   a liquid supply channel configured to conduct a liquid into the transition zone.   
     
     
         9 . The dual fuel nozzle of  claim 8 , wherein the liquid is a liquid fuel. 
     
     
         10 . The dual fuel nozzle of  claim 8 , wherein the liquid is water and is supplied to reduce emissions. 
     
     
         11 . The dual fuel nozzle of  claim 8 , wherein the shoulder defines a plurality of gas ports. 
     
     
         12 . The dual fuel nozzle of  claim 8 , wherein the gas penetrates a volume of the gas discharge zone. 
     
     
         13 . The dual fuel nozzle of  claim 8 , wherein the gas propagates away from the interior way. 
     
     
         14 . The dual fuel nozzle of  claim 8 , wherein the gas and the liquid mix in the transition zone. 
     
     
         15 . The dual fuel nozzle of  claim 8 , further comprising an air channel configured to conduct air to the transition zone, wherein the air is mixed with the liquid and the gas. 
     
     
         16 . A dual fuel distribution system, comprising:
 a gas fuel supply;   a housing comprising an interior wall defining a shoulder, the shoulder defining a plurality of gas ports, wherein gas from the gas fuel supply is conducted through the plurality of gas ports in a mixing chamber;   a liquid supply; and   a liquid distribution channel defined in the housing and configured to conduct a liquid from the liquid supply to a transition zone, wherein the transition zone is a portion of the mixing chamber.   
     
     
         17 . The dual fuel distribution system of  claim 16 , wherein the gas fuel and the liquid are mixed in the transition zone. 
     
     
         18 . The dual fuel distribution system of  claim 16 , wherein the housing further comprises an air supply that is configured to conduct air to the transition zone. 
     
     
         19 . The dual fuel distribution system of  claim 16 , wherein the plurality of gas ports is  12  gas ports. 
     
     
         20 . The dual fuel distribution system of  claim 16 , wherein the liquid is at least one of water and a liquid fuel.