High temperature monitoring the height of condensed water in steam pipes

Yoseph Bar-Cohen; Shyh-Shiuh Lih; M. Badescu; Xiaoqi Bao; Stewart Sherrit; Scott Widholm; Patrick Ostlund; Julian Blosiu

doi:10.1117/12.880907

31 March 2011 High temperature monitoring the height of condensed water in steam pipes

Yoseph Bar-Cohen, Shyh-Shiuh Lih, M. Badescu, Xiaoqi Bao, Stewart Sherrit, Scott Widholm, Patrick Ostlund, Julian Blosiu

Author Affiliations +

Proceedings Volume 7984, Health Monitoring of Structural and Biological Systems 2011; 798423 (2011) https://doi.org/10.1117/12.880907
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

An in-service health monitoring system is needed for steam pipes to track through their wall the condensation of water. The system is required to measure the height of the condensed water inside the pipe while operating at temperatures that are as high as 250^oC. The system needs to be able to make real time measurements while accounting for the effects of cavitation and wavy water surface. For this purpose, ultrasonic wave in pulse-echo configuration was used and reflected signals were acquired and auto-correlated to remove noise from the data and determine the water height. Transmitting and receiving the waves is done by piezoelectric transducers having Curie temperature that is significantly higher than 250^oC. Measurements were made at temperatures as high as 250^oC and have shown the feasibility of the test method. This manuscript reports the results of this feasibility study.

Citation Download Citation

Yoseph Bar-Cohen, Shyh-Shiuh Lih, M. Badescu, Xiaoqi Bao, Stewart Sherrit, Scott Widholm, Patrick Ostlund, and Julian Blosiu "High temperature monitoring the height of condensed water in steam pipes", Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 798423 (31 March 2011); https://doi.org/10.1117/12.880907

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