This document establishes the functional, performance, design, development, interface and test requirements for the Double-Shell Tank System.Charge Code: 106462 TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontracton. Revision 0 FOREWORD This revision of the System Specification for the Double-Shell Tank (DST) System (HNF-SD-WM-TRD-007, Rev. 0) is based on the DST System operation and utilization documented by Case 3, Project Planning, in the Tank Waste Remediation System Operation and Utilization Plan to Support Waste Feed Delivery (HNF-SD-WM-SP-012, Revision l), that resulted from DOE Richland Operations Office (RL) planning guidance documented in "Contract DE-AC06-96RL13200 -Planning Guidance Revision for Development of Contract Deliverables Required by Performance Agreement TWRl.3.5", (99-AMPD-006). Additional planning guidance resulting from various programmatic changes and contract negotiations between DOE Office of River Protection (ORP) and British Nuclear Fuel Limited, Inc. (BNFL) have been received by the Tank Farm Contractor (TFC) and incorporated into the latest version of the TFC Operation and Utilization Plan, RPP-SD-WM-SP-012, Revision 2 (TFC O&UP).Upon acceptance of Revision 2 of the TFC O&UP, the DST System Specification will be updated to reflect the technical requirements associated with the DST System that is consistent with the latest planning guidance mentioned above. Foreseeable changes to the DST System Specification include deleting the requirements now present in the DST System to receive entrained solids and out-of-specification feed batches from the privatization contractor's facility. Other changes associated with waste transfers (e.g., size and duration) must be evaluated more closely once Revision 2 of the TFC O&UP is approved. Fiscal year 2001 planning includes tasking associated with studying the sensitivity or relationship between planning guidance changes and the DST System Specification performance requirements. Enveloping performance requirements will be selected, where feasible in an effort to decouple the DST System Specification requirements from future planning guidance changes. This document is produced from the Hanford Site Technical Database (HSTD), an electronic database. Changes made to this document must be made via the change process for the River Protection Project (RPP) Technical Requirements Baseline and the Hanford Site Technical Database. See procedures RPP-PRO-533, "Change Control" and RPP-MD-004, "RPP Change Control" for guidance in making such changes.

Abstract:This r e p o r t documents t h e i n i t i a l r e t r i e v a l sequence and t h e methodology used t o s e l e c t i t . Waste r e t r i e v a l , storage, pretreatment and v i t r i f i c a t i o n were modeled f o r candidate s i n g l e -s h e l l tank r e t r i e v a l sequences. m e t r i c s ( f o r example, high-level waste glass volume, r e l a t i v e r i s k and schedule).process rates, r e t r i e v a l dates, and blending s t r a t e g y e f f e c t s . The models were based on estimates o f component i n v e n t o r i e s and concentrations, sludge wash f a c t o r s and timing, r e t r i e v a l annex l i m i t a t i o n s , e t c .

Abstract:This document establishes the functional, performance, design, development, interface and test requirements for the Double-Shell Tank System.

The Hanford Federal Facility Agreement and Consent Order (also known as the Tri-Party Agreement), established several milestones associated with the Initial Single-Shell Tank Retrieval System (ISSTRS). It also established that the scope of ISSTRS is the retrieval of a complete tank farm or an equivalent number of tanks. This study selected the singleshell tanks to be included in the ISSTRS work scope. This study determined that the ISSTRS work scope should consist of four tanks located in the A, AX, and C , tank farms). retrieval demonstration tank. The other three (Tanks 241-A-I 02, 241-C-103, and 241-C-105) are 100-series tanks containing high interim storage risk, high long-term hazard waste and are assumed not to be leaking.

Alternative for removing heat from Phase I, low-activity waste feed double-shell tanks using the-I ventilation systems have been analyzed for Phase 1 waste feed delivery. The analysis was a parametric study using a model that predicted the waste temperatures for a range of primary and annulus ventilation system flow rates. The analysis was performed to determine the ventilation flow required to prevent the waste temperature from exceeding the Limiting Conditions for Operation limits during normal operation and the Safety Limits during off-normal events. TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors.