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Title: Turnout Drift Operating Envelope Calculation

Abstract

No abstract prepared.

Authors:
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
899460
Report Number(s):
800-30C-TUN0-00100-000-00A, Rev. 00A/ ECN 1
ENG.20050826.0004, DC# 45403; TRN: US0702186
DOE Contract Number:
NA
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; RADIOACTIVE WASTE FACILITIES; YUCCA MOUNTAIN; CALCULATION METHODS; TUNNELS; OPERATION

Citation Formats

A.D. Kruz. Turnout Drift Operating Envelope Calculation. United States: N. p., 2005. Web. doi:10.2172/899460.
A.D. Kruz. Turnout Drift Operating Envelope Calculation. United States. doi:10.2172/899460.
A.D. Kruz. Fri . "Turnout Drift Operating Envelope Calculation". United States. doi:10.2172/899460. https://www.osti.gov/servlets/purl/899460.
@article{osti_899460,
title = {Turnout Drift Operating Envelope Calculation},
author = {A.D. Kruz},
abstractNote = {No abstract prepared.},
doi = {10.2172/899460},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 26 00:00:00 EDT 2005},
month = {Fri Aug 26 00:00:00 EDT 2005}
}

Technical Report:

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  • The purpose of the Turnout Drift Operating Envelope Calculation is to identify the design parameters of the typical turnout drift and advance the preliminary design of the typical turnout drift. The scope of this calculation requires the turnout drift geometry be identified in sufficient detail to provide input to develop a typical turnout drift design. This turnout drift design strategy will be used to develop a preliminary turnout drift design for each distinct grouping of turnout drift type. The calculation will define the operating envelope of the relevant interfaces such as the turnout drift invert and the ventilation door. Thismore » information will be used to describe the space allocation of the turnout drift components and operating equipment. The turnout drift is an elemental component of the subsurface repository design layout. Other elemental components are the emplacement drift, the access mains, the exhaust mains, and ventilation shafts. This calculation will describe the fundamental dimensions and geometry of a turnout drift and will serve as a basis for subsequent detailed design.« less
  • This report summarizes the doffing procedures and provides a copy of the videotape script, which includes a fire brigade returning to a mock decontamination area after dealing with a simulated fire. The report also provides background information explaining why the videotape was made, how the project was accomplished, and what the procedures are intended to accomplish. Overall, the video gives step-by-step instructions for the removal of contaminated turnout gear and indicates how firefighters and radiation protection personnel can work together cooperatively. These new doffing procedures were developed with the advice and participation of actual nuclear power plant firefighting personnel atmore » the Seabrook Station of New Hampshire Yankee utility and may be adapted to enhance any existing in-plant procedures. The video includes comments from members of the fire brigade, an equipment review, and a discussion of the doffing area arrangement.« less
  • This report summarizes the doffing procedures and provides a copy of the videotape script, which includes a fire brigade returning to a mock decontamination area after dealing with a simulated fire. The report also provides background information explaining why the videotape was made, how the project was accomplished, and what the procedures are intended to accomplish. Overall, the video gives step-by-step instructions for the removal of contaminated turnout gear and indicates how firefighters and radiation protection personnel can work together cooperatively. These new doffing procedures were developed with the advice and participation of actual nuclear power plant firefighting personnel atmore » the Seabrook Station of New Hampshire Yankee utility and may be adapted to enhance any existing in-plant procedures. The video includes comments from members of the fire brigade, an equipment review, and a discussion of the doffing area arrangement.« less
  • This report summarizes the development and field testing of a combustor viewing probe (CVP) as a flame diagnostic monitor for utility gas turbine engines. The prototype system is capable of providing a visual record of combustor flame images, recording flame spectral data, analyzing image and spectral data, and diagnosing certain engine malfunctions. The system should provide useful diagnostic information to utility plant operators, and reduced maintenance costs. The field tests demonstrated the ability of the CVP to monitor combustor flame condition and to relate changes in the engine operation with variations in the flame signature. Engine light off, run upmore » to full speed, the addition of load, and the effect of water injection for NO/sub x/ control could easily be identified on the video monitor. The viewing probe was also valuable in identifying hard startups and shutdowns, as well as transient effects that can seriously harm the engine.« less
  • Rotary sampling using the Rotary Mode Core Sampling System (RMCSS) is constrained by what is referred to as the ``Operating Envelope``. The Operating Envelop defines the maximum downward force, maximum rotational speed and minimum purge gas flow allowed during operation of the RMCSS. The original values of 1170 lb. down force, 55 RPM rotational speed, and 30 SCFM nitrogen purge gas were determined during original envelope testing. This envelope was determined by observing the temperature rise on the bitface while drilling into waste simulants. The maximum temperature in single-shell tanks (SSTS) is considered to be approximately 9O C and themore » critical drill bit temperature, which is the temperature at which an exothermic reaction could be initiated in the tank waste, was previously determined to be 150 C. Thus, the drill bit temperature increase was limited to 60 C. Thermal properties of these simulants approximated typical properties of waste tank saltcake. Later, more detailed envelope testing which used a pumice block simulant, showed a notably higher temperature rise while drilling. This pumice material, which simulated a ``worst case`` foreign object embedded in the waste, has lower thermal conductivity and lower thermal diffusivity than earlier simulants. These properties caused a slower heat transfer in the pumice than in the previous simulants and consequently a higher temperature rise. The maximum downward force was subsequently reduced to 750 lb (at a maximum 55 RPM and minimum 30 SCFM purge gas flow) which was the maximum value at which the drill bit could be operated and still remain below the 60 C temperature rise.« less