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EIGENVALUE-PREDICTION METHOD IN COMBUSTION EQUIPMENT AND EVALUATION METHOD OF RESPONSE FACTOR BETWEEN MEASURING DEVICES
EIGENVALUE-PREDICTION METHOD IN COMBUSTION EQUIPMENT AND EVALUATION METHOD OF RESPONSE FACTOR BETWEEN MEASURING DEVICES
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机译：燃烧设备的特征值预测方法与测量装置之间响应因子的评估方法
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摘要
PROBLEM TO BE SOLVED: To provide an eigenvalue-prediction method in combustion equipment and evaluation method of response magnification factor between measuring devices, in which a reference measuring-device is used downstream of flames to obtain a correct value and an object measuring-device is used upstream of the flames, and the measured values are compared with each other to calculate automatically a correct value in regulating fuel-air ratio by detecting oscillating combustion and pressure fluctuation in combustion equipment such as a gas turbine and rocket-propulsion engine.;SOLUTION: A reference measuring-device is placed on a high-temperature side of flames in a combustor such as a gas turbine and a rocket-propulsion engine, and an object measuring-device is placed on a low temperature side. A response magnification factor between the reference and object measuring-devices is calculated from measurement results of the devices. Unusual data is filtered by modified Thompson τ-method. Residual data is further filtered by 2σ to obtain variance of the data, and further a regression line is calculated to obtain a calibration factor. Thus, the measurement can be carried out singly with the object measuring-device.;COPYRIGHT: (C)2003,JPO
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