Performance assessment calculational exercises; PACE [Performance Assessment Calculational Exercises]-90: Overview and summary
The Performance Assessment Calculational Exercises (PACE) are an ongoing effort coordinated by Yucca Mountain Project Office. The objectives of fiscal year 1990 work, termed PACE-90, as outlined in the Department of Energy Performance Assessment (PA) Implementation Plan were to develop PA capabilities among Yucca Mountain Project (YMP) participants by calculating performance of a Yucca Mountain (YM) repository under ``expected`` and also ``disturbed`` conditions, to identify critical elements and processes necessary to assess the performance of YM, and to perform sensitivity studies on key parameters. It was expected that the PACE problems would aid in development of conceptual models and eventual evaluation of site data. The PACE-90 participants calculated transport of a selected set of radionuclides through a portion of Yucca Mountain for a period of 100,000 years. Results include analyses of fluid-flow profiles, development of a source term for radionuclide release, and simulations of contaminant transport in the fluid-flow field. Later work included development of a problem definition for perturbations to the originally modeled conditions and for some parametric sensitivity studies. 3 refs.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 138001
- Report Number(s):
- SAND-90-2088C; CONF-910435-5; ON: DE90017590; TRN: 91:004783
- Resource Relation:
- Conference: 2. annual American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (United States), 28 Apr - 3 May 1991; Other Information: PBD: [1990]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
RADIONUCLIDE MIGRATION
MATHEMATICAL MODELS
TECHNETIUM 99
ENVIRONMENTAL TRANSPORT
IODINE 129
CESIUM 135
NEPTUNIUM 237
RADIOACTIVE WASTE FACILITIES
PERFORMANCE TESTING
CALCULATION METHODS
YUCCA MOUNTAIN
FLUID FLOW
STRATIGRAPHY
THERMOMECHANICAL TREATMENTS
FISSION PRODUCTS
SOURCE TERMS
CONTAINERS
WATER TABLES
ONE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
HUMAN INTRUSION
Yucca Mountain Project