High-Temperature Profile Monitoring in Gas Turbine Exhaust-Gas Diffusors with Six-Point Fiber-Optic Sensor Array
High-Temperature Profile Monitoring in Gas Turbine Exhaust-Gas Diffusors with Six-Point Fiber-Optic Sensor Array
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DOI：
10.3390/ijtpp5040025
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发表时间：
2020-12-01
影响因子：
1.4
通讯作者：
Roths, Johannes
中科院分区：
文献类型：
--
作者：
Dutz, Franz J.;Boje, Sven;Roths, Johannes
在本文中，部署一个新开发的，多点，光纤温度传感器系统的温度分布测量在6 MW燃气涡轮机的演示。光学传感器光纤集成在外径为1.6 mm的不锈钢保护电缆中。它包括六个测量点，分布在110 mm的长度上。传感器电缆安装在温度探头中，并径向定位在涡轮机的排气扩散器中。利用该温度探头对排气扩散器内的径向温度分布进行了高时空分辨率的测量。在涡轮机的试运行期间，当机器在不同负载下运行时，观察到特征温度梯度。
In this paper, the deployment of a newly developed, multipoint, fiber-optic temperature-sensor system for temperature distribution measurements in a 6 MW gas turbine is demonstrated. The optical sensor fiber was integrated in a stainless steel protection cable with a 1.6 mm outside diameter. It included six measurement points, distributed over a length of 110 mm. The sensor cable was mounted in a temperature probe and was positioned radially in the exhaust-gas diffusor of the turbine. With this temperature probe, the radial temperature profiles in the exhaust-gas diffusor were measured with high spatial and temporal resolution. During a test run of the turbine, characteristic temperature gradients were observed when the machine operated at different loads.