The DAI Technology Has the Following Features:

·        The DAI Power Augmentation Increases Combustion Turbine/Combined Cycle Power by more than 10-12%

·        Incremental Heat Rate is approximately the Same as for a Combustion turbine

·        The Full Incremental Power Introduced Practically Instantly with Gas Turbine Start-up

·        Incremental Costs are Approximately $200-250/kW, a Fraction of New Gas Turbine Cost

·        Does not Require any Water Resources

·        Given Peak Requirement is Met with Lower Installed ISO Combustion Turbine Capacity

·        Schedule for Introduction of New Capacity Reduced to 4-8 Months

·        Provides Significant Capital and Operating Cost Savings Compared to Alternate Power Augmentation Methods

·        Provides Significant Operating Flexibility and Leverage for Introduction of New Capacity

·        Rapid Start-Up Significantly Increases Dispatch Hours

 

Comparison of HAI and DAI Technologies Versus Steam Injected Technology:

·        HAI provides by 30%-40% higher power augmentation at significantly lower specific costs ($/kW). Incremental power is proportional to the injected mass of a working fluid: SI is limited for DLN combustors (3.5% for PG7241F), while HAI and DAI allow significantly higher the humid and dry air injection rates limited only by the allowable shaft torque or the compressor surge line.

·        The HAI and DAI technologies allow operation on the “Dry” control curve (Texh versus Pcd), while steam injection requires operation on the “Wet” curve, which results in a reduced firing temperature (TIT).

·        HAI does not require demineralized water for make-up with associated reduction in personnel and capital/O&M costs.

·        Based on the GE operating manual for 7F gas turbine, operation with steam injection reduces “hot” components’ life by a factor of two (2). There should be no life reduction for DAI and insignificant life reduction for HAI.

·        DAI incremental power is available instantly  (HAI approximately 40% instantly) with gas turbine start-up, while a 30-40 min. delay is required for steam injection