FIELD: physics.
SUBSTANCE: invention relates to the field of power engineering. Combustion system (1) comprises burner (30), pilot fuel supply line (2) for providing pilot fuel to burner (30), pilot air supply line (4) for providing pilot air to burner (30), valve assembly (80) configured to vary the ratio of pilot fuel and pilot air provided to burner (30) through pilot fuel supply line (2) and pilot air feed line (4), respectively, combustion chamber volume (28) associated with burner (30), temperature sensor (75) for detecting temperature of combustion system part (33), configured to report temperature signal indicating temperature recorded therethrough, pressure sensor (85) for recording information on pressure, which is pressure in a defined place of volume (28) of the combustion chamber, configured to communicate a pressure signal indicating pressure in a defined location of volume (28) of the combustion chamber, control unit (90) configured to receive temperature signal from temperature sensor (75) and receive pressure signal from pressure sensor (85), wherein control unit (90) is further configured to: based on temperature signal, valve assembly (80) to change ratio of pilot fuel and pilot air provided to burner (30), to reduce temperature of part (33) of combustion system (1) below a predetermined temperature limit when temperature is equal to or greater than preset temperature limit; and/or control, based on the pressure signal, valve unit (80) to change the ratio of pilot fuel and pilot air provided to burner (30), to reduce pressure in a defined location of volume (28) of combustion chamber below a predetermined pressure limit, when pressure equal to or exceeds preset pressure limit.
EFFECT: invention allows controlling combustion system operating conditions.
15 cl, 9 dwg
