Soft Sensor for Oxide Scales on the Steam Side of Superheater Tubes under Uneven Circumferential Load
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-03
Country of Publication
Egypt
No. of Pages
11
Abstract EN
A soft sensor for oxide scales on the steam side of superheater tubes of utility boiler under uneven circumferential loading is proposed for the first time.
First finite volume method is employed to simulate oxide scales growth temperature on the steam side of superheater tube.
Then appropriate time and spatial intervals are selected to calculate oxide scales thickness along the circumferential direction.
On the basis of the oxide scale thickness, the stress of oxide scales is calculated by the finite element method.
At last, the oxide scale thickness and stress sensors are established on support vector machine (SMV) optimized by particle swarm optimization (PSO) with time and circumferential angles as inputs and oxide scale thickness and stress as outputs.
Temperature and stress calculation methods are validated by the operation data and experimental data, respectively.
The soft sensor is applied to the superheater tubes of some power plant.
Results show that the soft sensor can give enough accurate results for oxide scale thickness and stress in reasonable time.
The forecasting model provides a convenient way for the research of the oxide scale failure.
American Psychological Association (APA)
Li, Qing Wei& Yao, Gui Huan. 2015. Soft Sensor for Oxide Scales on the Steam Side of Superheater Tubes under Uneven Circumferential Load. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1053151
Modern Language Association (MLA)
Li, Qing Wei& Yao, Gui Huan. Soft Sensor for Oxide Scales on the Steam Side of Superheater Tubes under Uneven Circumferential Load. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1053151
American Medical Association (AMA)
Li, Qing Wei& Yao, Gui Huan. Soft Sensor for Oxide Scales on the Steam Side of Superheater Tubes under Uneven Circumferential Load. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1053151
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053151