Millimeter-Wave Measurements of High Level and Low Level Activity Glass Melts

Woskov, Paul P. ; Sundaram, S. K. ; Daniel, William E., Jr.

Massachusetts Institute of Technology

关键词: Combustion;    Storage;    12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    Process Control;    Mitigation;   

DOI  :  10.2172/895763
RP-ID  :  ERSD-94639-2006
RP-ID  :  FG02-05ER63978
RP-ID  :  895763

美国|英语

来源: UNT Digital Library

【 摘 要 】

The primary objectives of the current research is to develop on-line sensors for characterizing molten glass in high-level and low-activity waste glass melters using millimeter-wave (MMW) technology and to use this technology to do novel research of melt dynamics. Existing and planned waste glass melters lack sophisticated diagnostics due to the hot, corrosive, and radioactive melter environments. Without process control diagnostics, the Defense Waste Processing Facility (DWPF) and the Waste Treatment Plant (WTP) under construction at Hanford operate by a feed forward process control scheme that relies on predictive models with large uncertainties. This scheme severely limits production throughput and waste loading. Also operations at DWPF have shown susceptibility to anomalies such as pouring, foaming, and combustion gas build up, which can seriously disrupt operations. Future waste chemistries will be even more challenging. The scientific goals of this project are to develop new reliable on-line monitoring capability for important glass process parameters such as temperature profiles, emissivity, density, viscosity, and other characteristics using the unique advantages of millimeter wave electromagnetic radiation that can be eventually implemented in the operating melters. Once successfully developed and implemented, significant cost savings would be realized in melter operations by increasing production through put, reduced storage volumes (through higher waste loading), and reduced risks (prevention or mitigation of anomalies).