Broadband Infrared Absorption Sensor for High-Pressure Combustor Control
Broadband Infrared Absorption Sensor for High-Pressure Combustor Control
复制标题
用于高压燃烧器控制的宽带红外吸收传感器
DOI：
--
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
B. Scully
中科院分区：
文献类型：
--
作者：
J. Seitzman;B. Scully
本文介绍了一种用于监测高压燃气涡轮机燃烧室出口平面温度均匀性和积分水摩尔分数的传感器方法。该传感器，旨在用于主动控制系统，是基于红外线的视线吸收测量的水与相对宽带光源。传感器的性能进行了模拟，使用基于HITRAN/HITEMP数据库的水的红外吸收的计算机模型。根据对温度的相对敏感性，确定了2.5 μm附近的特定感兴趣区域艾德。一个区域对温度和废气中综合水摩尔分数的监测相对不敏感。采用正斜率灵敏度和负斜率灵敏度的两个波长来监测排气温度分布的均匀性。线性和灵敏度的方法的光谱形状和宽度的不确定性，以及过滤光源的波长，也被提出。
A sensor approach for monitoring temperature uniformity, and also integrated water mole fraction, in the exit planeof a high-pressuregas turbine combustor is presented. The sensor, intended foruse in anactive control system, is based on infrared line-of-sight absorption measurements of water with a relatively broadband light source. Performance of the sensor was simulated using a computer model based on the HITRAN/HITEMP database for the infrared absorption of water. Speci c regions of interest near 2.5 μm were identi ed, based on their relative sensitivity to temperature. One region is relatively insensitive to temperature and permitsmonitoringof integrated water mole fraction across the exhaust. Two wavelengths, onewith positive slope sensitivity and the other negative, are used to monitor the uniformity of the exhaust temperature pro le. The linearity and sensitivity of the approach to uncertainties in the spectral shape and width, as well as the wavelength of the ltered light source, are also presented.