High-Temperature Profile Monitoring in Gas Turbine Exhaust-Gas Diffusors with Six-Point Fiber-Optic Sensor Array

被引：22

作者：

Dutz, Franz J. ^{[1
]}

Boje, Sven ^{[2
]}

Orth, Ulrich ^{[2
]}

Koch, Alexander W. ^{[3
]}

Roths, Johannes ^{[1
]}

机构：

[1] Munich Univ Appl Sci, Photon Lab, Lothstr 34, D-80335 Munich, Germany

[2] MAN Energy Solut SE, Steinbrinkstr 1, D-46145 Oberhausen, Germany

[3] Tech Univ Munich, Inst Measurement Syst & Sensor Technol, Theresienstr 90, D-80333 Munich, Germany

来源：

INTERNATIONAL JOURNAL OF TURBOMACHINERY PROPULSION AND POWER | 2020年 / 5卷 / 04期

关键词：

fiber Bragg grating; multipoint; high temperature; regenerated grating; gas turbine; REGENERATED GRATINGS; BRAGG; FIBERS;

D O I：

10.3390/ijtpp5040025

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

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.

引用

页数：6

共 14 条

[1] A study of regenerated gratings produced in germanosilicate fibers by high temperature annealing [J].

Bandyopadhyay, S. ;

Canning, J. ;

Biswas, P. ;

Stevenson, M. ;

Dasgupta, K. .

OPTICS EXPRESS, 2011, 19 (02) :1198-1206

[2] Ultrahigh-temperature regenerated gratings in boron-codoped germanosilicate optical fiber using 193 nm [J].

Bandyopadhyay, Somnath ;

Canning, John ;

Stevenson, Michael ;

Cook, Kevin .

OPTICS LETTERS, 2008, 33 (16) :1917-1919

[3] Extreme Silica Optical Fibre Gratings [J].

Canning, John ;

Stevenson, Michael ;

Bandyopadhyay, Somnath ;

Cook, Kevin .

SENSORS, 2008, 8 (10) :6448-6452

[4] Fiber-Optic Multipoint Sensor System with Low Drift for the Long-Term Monitoring of High-Temperature Distributions in Chemical Reactors [J].

Dutz, Franz J. ;

Heinrich, Andreas ;

Bank, Rolf ;

Koch, AlexanderW. ;

Roths, Johannes .

SENSORS, 2019, 19 (24)

[5] Multipoint High Temperature Sensing with Regenerated Fiber Bragg Gratings [J].

Dutz, Franz J. ;

Lindner, Markus ;

Heinrich, Andreas ;

Seydel, Carl G. ;

Bosselmann, Thomas ;

Koch, Alexander W. ;

Roths, Johannes .

FIBER OPTIC SENSORS AND APPLICATIONS XV, 2018, 10654

[6] Thermal stability of oxygen-modulated chemical-composition gratings in standard telecommunication fiber [J].

Fokine, M .

OPTICS LETTERS, 2004, 29 (11) :1185-1187

[7] Influence of pre-annealing on the thermal regeneration of fiber Bragg gratings in standard optical fibers [J].

Holmberg, Patrik ;

Laurell, Fredrik ;

Fokine, Michael .

OPTICS EXPRESS, 2015, 23 (21) :27520-27535

[8] Temperature Resistant Fiber Bragg Gratings for On-Line and Structural Health Monitoring of the Next-Generation of Nuclear Reactors [J].

Laffont, Guillaume ;

Cotillard, Romain ;

Roussel, Nicolas ;

Desmarchelier, Rudy ;

Rougeault, Stephane .

SENSORS, 2018, 18 (06)

[9] Regenerated Bragg Grating Sensor Array for Temperature Measurements During an Aluminum Casting Process [J].

Lindner, Markus ;

Tunc, Edis ;

Weraneck, Klaus ;

Heilmeier, Florian ;

Volk, Wolfram ;

Jakobi, Martin ;

Koch, Alexander W. ;

Roths, Johannes .

IEEE SENSORS JOURNAL, 2018, 18 (13) :5352-5360

[10] Novel Type II Bragg Grating Structures in Silica Fibers Using Femtosecond Lasers and Phase Masks [J].

Mihailov, Stephen J. ;

Hnatovsky, Cyril ;

Grobnic, Dan .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (11) :2549-2556

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