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Optical Fiber Sensor Instrumentation for Slagging Coal Gasifiers
Coal gasifier is one of the most promising solutions for clean fossil energy. Refractory thickness monitoring and online real-time temperature measurement is needed for improved reliability and advanced process control for current and future generation power plants. The objective of this program is to design and implement an optical fiber based sensing system that could potentially be used to monitor refractory wall thickness and temperature inside a coal gasifier. For the thickness monitoring, the system should be able to operate at temperatures up to 1000 C. For this temperature range, silica fiber can still work so it is chosen for the sensor design. The measurement is based on a photon counting optical time domain reflectometer. A narrow light pulse is launched into a silica fiber which could be embedded into the gasifier refractory wall, and is partially reflected by the far end of the fiber. The time of flight of the light pulse in the fiber then gives an indication of the position of the fiber end, which is a function of the wall thickness when the fiber is embedded. Results obtained show a measurement accuracy of {+-}2cm in environment of 1000 C with a saw cut fiber end. When …
Date:
July 19, 2008
Creator:
Wang, Anbo & Cooper, Kristie
Object Type:
Report
System:
The UNT Digital Library
The Bastrop Advertiser (Bastrop, Tex.), Vol. 155, No. 42, Ed. 1 Saturday, July 19, 2008
Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date:
July 19, 2008
Creator:
Hagerty, Terry
Object Type:
Newspaper
System:
The Portal to Texas History
Comments on "Thermophysical Properties of para-Anisaldehyde (1) + Chlorobenzene (2) at Temperatures of (303.15, 313.15, and 323.15) K and a Pressure of 0.1 MPa" (Baskaran, R.; Kubendran, T. R. J. Chem. Eng. Data 2008, 53, 978-982)
Comments regarding the article, "Thermochemical properties of para-anisaldehyde (1) + chlorobenzene (2) at temperatures of (303.15, 313.15, and 323.15) K and a pressure of 0.1 MPa," published in 2008 in the Journal of Chemical and Engineering Data.
Date:
July 19, 2008
Creator:
Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 200, Ed. 1 Saturday, July 19, 2008
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 19, 2008
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Black Tie Dinner - Interview W Organizations involved with Black Tie Dinner
Video recording from the Black Tie Dinner Collection recorded during an interview with various organizations involved with the Black Tie Dinner, such as AIDS Arms, Legacy Counseling Center, AIDS Resources of North Texas, Celebration Community Church, Legal Hospice of Texas, AIDS Interfaith Network, & Northaven United Methodist Church.
Date:
July 19, 2008
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 141, Ed. 1 Saturday, July 19, 2008
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 19, 2008
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History