摘要:
For monitoring burner operation, such as in a refinery, boiler or the like, an acoustic sampler such as a piezo-electric microphone is located in a position to record an acoustic sample of the burner operation. The acoustic sample can be processed to determine whether the burner is operating normally or has suffered a flame out condition. Remedial actions can be undertaken to control the fuel supply to the burner if a flame out condition has been detected.
摘要:
Apparatus and methods are disclosed for determining internal engine characteristics using acoustic-vibration data. Exemplary such data are passive acoustic pyrometer data. Acoustic-vibrational frequencies emanating from a running engine are detected and compared to frequencies having known relationships to particular operating characteristics of the engine. In an example, the dominant frequency or other prominent frequency emanating from an internal-combustion chamber of a turbine engine is detected and used to determine the fuel-to-air ratio in the chamber. The determined data are used for performing adjustments or optimizations of engine performance, such as adjusting the fuel-to-air ratio as required or desired. In a similar manner, operating characteristics of other engines or engine-like environments, including furnaces and boilers, can be determined.