Reports

Webcast: Improving Reliability & Economics of Gas Turbines in Asia with Dry Air Injection

Webcast summary: In the interests of better utilizing the existing gas turbine resource base, RRT Sigma performed a study on gas turbines owned by Indonesia Power to evaluate options for incremental gas turbine power that can be applied to the existing fleet of gas turbine assets. 6 technologies were reviewed and compared at 9 different conditions. Technologies included in the study were: Evaporative Cooling, Fogging, Inlet Chilling, Wet Compression, Humid Air Injection and Dry Air Injection. Written report to accompany the webcast below: 

Report: Evaluation of Gas Turbine Performance Alternatives

Report Summary: In the interests of better utilizing the existing gas turbine resource base, RRT Sigma performed a study on gas turbines to evaluate options for incremental gas turbine power that can be applied to the existing fleet of gas turbine assets. 6 technologies were reviewed and compared at 9 different conditions. Technologies included in the study were: Evaporative Cooling, Fogging, Inlet Chilling, Wet Compression, Humid Air Injection and Dry Air Injection. The analysis concluded that Dry Air Injection was the most cost effective ($/kW) and had the least consequences for O&M. In addition Dry Air Injection had the least downtime, introduced no contaminants into the gas turbine, has the portability to relocate the system on any other or future gas turbines that might be installed. In the analysis, 5% incremental airflow was evaluated, but based on the margins available at the site; it is highly likely that additional performance can be achieved by exceeding the 5% flow threshold.

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