DWPF Melter Glass Pump Implementation and Design Improvement
Abstract
In order to improve the melt rate of high level waste slurry feed being vitrified in the Savannah River Sites (SRS) Defense Waste Processing Facility (DWPF) Melter, a melter glass pump (pump 1) was installed in the DWPF Melter on February 10, 2004. The glass pump increased melt rate by generating a forced convection within the molten glass pool, thereby increasing the heat transfer from the molten glass to the unmolten feed cold cap that is on top of the glass pool. After operating for over four months, the pump was removed on June 22, 2004 due to indications that it had failed. The removed pump exhibited obvious signs of corrosion, had collapsed inward at the glass exit slots at the melt line, and was dog-legged in the same area. This lead to the pump being redesigned to improve its mechanical integrity (increased wall thickness and strength) while maintaining its hydraulic diameter as large as possible. The improved DWPF glass pump (pump 2) was installed on September 15, 2004. The impact of the new design on pump life, along with analysis of the glass pumps impact on melt rate in the DWPF Melter is discussed in this paper.
- Authors:
- Publication Date:
- Research Org.:
- Savannah River Site (US)
- Sponsoring Org.:
- US Department of Energy (US)
- OSTI Identifier:
- 838623
- Report Number(s):
- WSRC-MS-2004-00676
TRN: US0501473
- DOE Contract Number:
- AC09-96SR18500
- Resource Type:
- Conference
- Resource Relation:
- Conference: 107th American Ceramic Society Convention, Baltimore, MD (US), 04/10/2005--04/13/2005; Other Information: PBD: 1 Apr 2005
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CERAMICS; CORROSION; DESIGN; FORCED CONVECTION; GLASS; HEAT TRANSFER; HYDRAULICS; IMPLEMENTATION; SAVANNAH RIVER PLANT; THICKNESS; WASTE PROCESSING; WASTES
Citation Formats
MICHAEL, SMITH. DWPF Melter Glass Pump Implementation and Design Improvement. United States: N. p., 2005.
Web.
MICHAEL, SMITH. DWPF Melter Glass Pump Implementation and Design Improvement. United States.
MICHAEL, SMITH. Fri .
"DWPF Melter Glass Pump Implementation and Design Improvement". United States. https://www.osti.gov/servlets/purl/838623.
@article{osti_838623,
title = {DWPF Melter Glass Pump Implementation and Design Improvement},
author = {MICHAEL, SMITH},
abstractNote = {In order to improve the melt rate of high level waste slurry feed being vitrified in the Savannah River Sites (SRS) Defense Waste Processing Facility (DWPF) Melter, a melter glass pump (pump 1) was installed in the DWPF Melter on February 10, 2004. The glass pump increased melt rate by generating a forced convection within the molten glass pool, thereby increasing the heat transfer from the molten glass to the unmolten feed cold cap that is on top of the glass pool. After operating for over four months, the pump was removed on June 22, 2004 due to indications that it had failed. The removed pump exhibited obvious signs of corrosion, had collapsed inward at the glass exit slots at the melt line, and was dog-legged in the same area. This lead to the pump being redesigned to improve its mechanical integrity (increased wall thickness and strength) while maintaining its hydraulic diameter as large as possible. The improved DWPF glass pump (pump 2) was installed on September 15, 2004. The impact of the new design on pump life, along with analysis of the glass pumps impact on melt rate in the DWPF Melter is discussed in this paper.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {4}
}