Modeling Offgas Systems for the Hanford Waste Treatment Plant

Conference · Fri Sep 02 04:00:00 EDT 2005

OSTI ID:881466

Smith, III, Frank G

To augment steady-state design calculations, dynamic models of three offgas systems that will be used in the Waste Treatment Plant now under construction at the Hanford Site were developed using Aspen Custom Modeler{trademark}. The offgas systems modeled were those for the High Level Waste (HLW) melters, Low Activity Waste (LAW) melters and HLW Pulse Jet Ventilation (PJV) system. The models do not include offgas chemistry but only consider the two major species in the offgas stream which are air and water vapor. This is sufficient to perform material and energy balance calculations that accurately show the dynamic behavior of gas pressure, temperature, humidity and flow throughout the systems. The models are structured to perform pressure drop calculations across the various unit operations using a combination of standard engineering calculations and empirical data based correlations for specific pieces of equipment. The models include process controllers, gas ducting, control valves, exhaust fans and the offgas treatment equipment. The models were successfully used to analyze a large number of operating scenarios including both normal and off-normal conditions.

• Research Organization: Savannah River Site (SRS), Aiken, SC
• Sponsoring Organization: USDOE
• DOE Contract Number: AC09-96SR18500
• OSTI ID: 881466
• Report Number(s): WSRC-MS-2005-00503
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BLOWERS
CERAMIC MELTERS
COMPUTERIZED SIMULATION
DESIGN
FLOW MODELS
HANFORD RESERVATION
OFF-GAS SYSTEMS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
VENTILATION
WATER VAPOR