Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods
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| Định dạng: | Bài Báo |
| Ngôn ngữ: | English |
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Applied Sciences
2021
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| Truy cập trực tuyến: | https://www.mdpi.com/2076-3417/11/6/2498 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1944 https://doi.org/10.3390/app11062498 |
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oai:localhost:PNK-19442022-08-17T05:54:43Z Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods Jinyi Lee Eunho Choe Cong-Thuong Pham Minhhuy Le circulating fluidized bed combustion boiler water-cooled wall tube water-cooled wall tube magnetic sensor array Q1 In this paper, a nondestructive inspection system is proposed to detect and quantitatively evaluate the size of the near- and far-side damages on the tube, membrane, and weld of the water-cooled wall in the fluidized bed boiler. The shape and size of the surface damages can be evaluated from the magnetic flux density distribution measured by the magnetic sensor array on one side from the center of the magnetizer. The magnetic sensors were arrayed on a curved shape probe according to the tube’s cross-sectional shape, membrane, and weld. On the other hand, the couplant was doped to the water-cooled wall, and a thin film was formed thereon by polyethylene terephthalate. Then, the measured signal of the flexible ultrasonic probe was used to detect and evaluate the depth of the damages. The combination of the magnetic and ultrasonic methods helps to detect and evaluate both near and far-side damages. Near-side damages with a minimum depth of 0.3 mm were detected, and the depth from the surface of the far-side damage was evaluated with a standard deviation of 0.089 mm. 2021-07-05T09:09:28Z 2021-07-05T09:09:28Z 2021 Article https://www.mdpi.com/2076-3417/11/6/2498 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1944 https://doi.org/10.3390/app11062498 en application/pdf Applied Sciences |
| institution |
Digital Phenikaa |
| collection |
Digital Phenikaa |
| language |
English |
| topic |
circulating fluidized bed combustion boiler water-cooled wall tube water-cooled wall tube magnetic sensor array |
| spellingShingle |
circulating fluidized bed combustion boiler water-cooled wall tube water-cooled wall tube magnetic sensor array Jinyi Lee Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| description |
Q1 |
| author2 |
Eunho Choe |
| author_facet |
Eunho Choe Jinyi Lee |
| format |
Article |
| author |
Jinyi Lee |
| author_sort |
Jinyi Lee |
| title |
Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| title_short |
Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| title_full |
Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| title_fullStr |
Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| title_full_unstemmed |
Measurement of Thinned Water-Cooled Wall in a Circulating Fluidized Bed Boiler Using Ultrasonic and Magnetic Methods |
| title_sort |
measurement of thinned water-cooled wall in a circulating fluidized bed boiler using ultrasonic and magnetic methods |
| publisher |
Applied Sciences |
| publishDate |
2021 |
| url |
https://www.mdpi.com/2076-3417/11/6/2498 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1944 https://doi.org/10.3390/app11062498 |
| _version_ |
1751856255845007360 |
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8.891787 |