System and method for air cooling of fuel purge flow - Patents.com

Abstract

A system is provided that includes an air cooling system (18) having a heat exchanger (232), a fan (234), and a mount (236). The heat exchanger (232) includes an inlet, an outlet, and a heat exchange conduit (238) between the inlet and the outlet. The inlet is configured to couple to a bleed system (14) of the gas turbine system (10) to extract a bleed flow. The heat exchanger (232) is configured to cool the bleed flow in ambient air along the heat exchange conduit (238) to generate a cooled bleed flow. The outlet is configured to couple to a fuel purge system (16) of the gas turbine system (10) to provide the cooled bleed flow as a fuel purge flow. The fan (234) is configured to force an air flow from the ambient air through the heat exchanger (232). The mount (236) is configured to mount the air cooling system (18) to the exterior of a housing (188) that surrounds the gas turbine system (10).

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