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

摘要

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 molton glass. Test results indicate that the self-verifying sensor is more accurate and reliabe than classic platinum/rhodium thermocouple and sheath assemblies. The results of this test are reported as well as enhnacements being made to the temperature probe. To obtain more reliable temperature measurements of the molton glass for improving production efficiency and ensuring consistent glass properties, optical sensing was reviewed for application in a high temperature environment.