Caldwell applies wet compression retrofits on GE Frame 7EA GTs
Caldwell Energy fo Louisville, KY has sucessfully completed the first application of its wet compression technology to GE's Frame 7EA gas turbine.
Retrofit wet commpression systems were installed on four in-service GE Frame 7EA turbines at a utility power plant on the US east coast.
Following the modifications,all foru engines were returened to operation. According to Caldwell, post-mod monitoring indicates that the retrofit has enabled the turbines to achieve a 10% increase in power output, as well as improved heat rate and a reduction in NOx emissions of nearly 50%
Wet compression-also called water-spray evaporative turbine intercooling-introduces a controlled water spary at the turbine inlet in order to:
-Optimize the working fluid of the compressor to increase its efficiency.
-Increase the overall turbine mass flow.
-Allow constant firing temperature control systems to promote more complete combustion of fuel.
Caldwell claims its technology can achieve output improvements of 8-15% for any type of gas turbine,with consistent performance across a wide range of ambient temperatures. In addition, wet compression systems can be used in conjunction with complementary cooling technologies such as inlet chilling and fogging.
Previously, Calwell has successfully demonstrated retrofit wet
compression systems on a variety OEM gas turbines.
Source:Gas Turbine World magazine
Caldwell Energy fo Louisville, KY has sucessfully completed the first application of its wet compression technology to GE's Frame 7EA gas turbine.
Retrofit wet commpression systems were installed on four in-service GE Frame 7EA turbines at a utility power plant on the US east coast.
Following the modifications,all foru engines were returened to operation. According to Caldwell, post-mod monitoring indicates that the retrofit has enabled the turbines to achieve a 10% increase in power output, as well as improved heat rate and a reduction in NOx emissions of nearly 50%
Wet compression-also called water-spray evaporative turbine intercooling-introduces a controlled water spary at the turbine inlet in order to:
-Optimize the working fluid of the compressor to increase its efficiency.
-Increase the overall turbine mass flow.
-Allow constant firing temperature control systems to promote more complete combustion of fuel.
Caldwell claims its technology can achieve output improvements of 8-15% for any type of gas turbine,with consistent performance across a wide range of ambient temperatures. In addition, wet compression systems can be used in conjunction with complementary cooling technologies such as inlet chilling and fogging.
Previously, Calwell has successfully demonstrated retrofit wet
compression systems on a variety OEM gas turbines.
Source:Gas Turbine World magazine
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