Process and system for producing power
AssigneeFluor Corporation
InventorAshok D. Rao
Life of this patent
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Abstract
An improved combustion-turbine cycle system and process which employs a multi-stage, counter-current flow humidifier to produce moist air for use as combustion air and thermal diluent in a combuster in which the improvement includes utilizing excess fluid produced in the humidifier as a working fluid in a separate, parallel excess fluid turbine and/or as combustion air and thermal diluent for an additional, separate combuster having its own turbine and operating in parallel with the primary combustion turbine machine.
Claims7
An improved system for producing mechanical power from a combustion turbine cycle which includes a combuster, a first turbine and a multi-stage countercurrent flow humidifier to supply a water vapor/air mixture as combustion air and thermal diluent to the combuster, the improvement comprising:
- a second turbine and means for utilizing the excess water vapor/air mixture to produce additional power in the second turbine, wherein said means for utilizing the excess water vapor/air mixture includes a conduit to directly supply the excess mixture to said second turbine.
An improved system for producing mechanical power from a combustion-turbine cycle which includes an external source of heat, a combuster, a turbine and a multi-stage countercurrent flow humidifier capable of supplying humidified air to the cycle, the improvement comprising:
- the humidifier adapted to produce a first steam of relatively less moist humidified air and a second stream of relatively more moist humidified air;
- a second turbine;
- and
- means for utilizing at least one of the first and second streams of moist humidified air to produce additional power in the second turbine.
A process for producing mechanical power comprising:
- humidifying compressed air to produce a gaseous medium;
- dividing said gaseous medium into a first portion and a second portion;
- combustion a combustible fuel in the presence of said first portion of said gaseous medium to drive a first turbine and produce mechanical power;
- and
- using said second portion of said gaseous medium to drive a second turbine and produce additional mechanical power, wherein said second portion of said gaseous medium is supplied directly to said second turbine after humidification.
A process for producing mechanical power comprising:
- humidifying compressed air in a humidifier to produce a first gaseous medium containing a relatively low percentage of water vapor and a second gaseous medium containing a relatively high percentage of water vapor;
- combusting a combustible fuel in a combustion chamber in the presence of said first gaseous medium to produce a working fluid;
- expanding said working fluid in an expander or a turbine to produce mechanical power;
- and
- using said second gaseous medium to produce additional mechanical power in a second turbine.
Dependencies are inferred from the claim text.