Results of the environmental update of GT-750-6 ("Nevsky Zavod", 6 MW), KWU VR-438 ("Siemens", 10 MW), MS-3002 ("General Electric", 10 MW) gas-turbine unit combustors were examined. On the basis of some specific features of design and operating process in the combustors, original engineering approaches of their update using a technique of localized air blow into the fire space extreme temperature zones were developed. The technique was demonstrated to be effective for a variety of combustors. Using the technique, one needs no considerable changes of the combustor design. The fuel system and gas turbine plant automatic control and governing systems remain virtually intact.
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