GAS-TURBINE BURNER THAT USES, AS FUEL, GAS WITH LOW CALORIFIC VALUE

摘要

A gas-turbine burner is provided with a first duct (18), in which fuel gas with low calorific value is supplied in use, and with a second duct (17), in which combustion air is supplied in use; the first and the second ducts (17, 18) are concentric with respect to a longitudinal axis (2); the burner (4) then has a swirler (6), set at the outlet of said second duct (17), and a converging nozzle (50) at the outlet of the first duct (18); the converging nozzle (50) is set downstream of a plate (58), which has a plurality of holes with a calibrated section of passage.