Three Mile Island-II Back Up Heated VAC Dryer System (TMI-2 Fuel Vacuum Dryer)
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
This document specifies the minimum requirements for the design, fabrication, testing, supply, system checkout, and delivery of a Heated Vacuum Drying System (HVDS). Any proposed substitutions or exceptions to this specification require the contractor's approval. All of the components of the HVDS can be designed and fabricated from standard off-the-shelf type components and hardware. The HVDS is used to perform heat and vacuum assisted liquid removal and drying of one to four canisters containing irradiated TMI-2 fuel debris. Each canister may initially contain up to 85 gallons of water but will be dewatered by contractor personnel prior to drying, leaving up to 20 gallons of water to be removed from each of the 342 TMI-2 canisters that will be cycled through the HVDS. However, the HVDS shall be capable of removing 85 gallons of water from each of four canisters concurrently (up to four canisters will be loaded into the HVDS vacuum furnace). The furnace is then sealed and the canisters will then be heated in the vacuum furnace while running the vacuum pump continuously until the required level of dryness is obtained. The fluid removed from the canister(s) is water contaminated with borats, clorides, radionuclides and trace amounts of volatiles. The dried fuel debris canisters will eventually be loaded into a larger dry shielded canister (DSC) for transfer and storage. This HVDS unit is intended to provide back up assemblies and components for the existing HVDS manufactured by Exolon Systems or it may be installed as a complete parallel system. It shall be functionally identical to the previous unit in all respects-including the incorporation of the changes noted in this specification and the referenced sketches and drawings.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE), Nuclear Infrastructure Programs. Nuclear Facility Operations
- DOE Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1514876
- Report Number(s):
- INL/EXT-19-53507-Rev000
- Country of Publication:
- United States
- Language:
- English
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