Evaluation of a Novel Temperature Sensing Probe for Monitoring and Controlling Glass Temperature in a Joule-Heated Glass Melter

Conference · Thu Apr 29 04:00:00 EDT 1999

OSTI ID:7578

Watkins, A D ^[1]; Musick, C A; Cannon, C ^[2]; Carlson, N M; Mullenix, P D ^[3]; Tillotson, R D

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1. Lockheed Martin Idaho Technologies Company
2. AccuTru Int'l Corp
3. INEEL

A self-verifying temperature sensor that employs advanced contact thermocouple probe technology was tested in a laboratory-scale, joule-heated, refractory-lined glass melter used for radioactive waste vitrification. The novel temperature probe monitors melt temperature at any given level of the melt chamber. The data acquisition system provides the real-time temperature for molten glass. Test results indicate that the self-verifying sensor is more accurate and reliable than classic platinum/rhodium thermocouple and sheath assemblies. The results of this test are reported as well as enhancements being made to the temperature probe. To obtain more reliable temperature measurements of the molten glass for improving production efficiency and ensuring consistent glass properties, optical sensing was reviewed for application in a high temperature environment.

• Research Organization: Idaho National Engineering and Environmental Lab., Idaho Falls, ID (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM) (US)
• DOE Contract Number: AC07-94ID13223
• OSTI ID: 7578
• Report Number(s): INEEL/CON-99-00609
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERAMIC MELTERS
DATA ACQUISITION SYSTEM
GLASS
GLASS PROPERTIES
MOLTEN GLASS
ON-LINE MEASUREMENT SYSTEMS
OPTICAL SENSING
PERFORMANCE
PLATINUM/RHODIUM THERMOCOUPLE AND SHEATH ASSEMBLIES
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTE VITRIFICATION
RADIOACTIVE WASTES
TEMPERATURE MEASUREMENT
TEMPERATURE MONITORING
TEMPERATURE SENSOR
THERMOCOUPLES
VITRIFICATION