Fauske & Associates, Inc.

Dust Explosion Hazards Testing Service
This service, which uses state-of-the-art laboratory apparatus from various manufacturers, complies with both European and North American standards for dust explosion hazard testing. A computerized dual-laser particle-size analyzer details full particle-size-distribution information, improving on the basic Taylor Sieve size-analysis technique. Samples may be tested as-received or processed to comply with the ASTM-standard recommended size of smaller than 75 µm. Flammability analysis uses a 5-L spherical explosibility chamber to perform high-pressure, high-temperature tests in excess of 500 psi initial pressure and 250_C initial temperature. An isothermal microcalorimeter that can capture chemical thermal activity as low as 0.1 µW/g is used to assess safe storage and transportation of self-reacting materials.

MAAP5 Modular Accident Analysis Program code
The MAAP5 Modular Accident Analysis Program code provides a wide range of integral plant evaluations in support of probabilistic risk assessment (PRA), design basis evaluations, and plant evaluations. This edition builds on MAAP4 code by expanding the severe-accident knowledge base, as well as modeling enhancements that extend the representation of plant-specific features. Upgrades include a new pressurized water reactor (PWR) revision control system (RCS) model, a generalized containment model, MAAP5-GRAAPH representation for PWRs and boiling water reactors (BWRs), MAAP5-DOSE, a 1-D Neutronics model, shutdown configuration models, additional benchmarks, an enhanced accumulator-drainage model, and many other BWR models.

FATE 2.0 (Facility Flow, Aerosol, Thermal and Explosion Model)
FATE 2.0 (Facility Flow, Aerosol, Thermal and Explosion Model) software is designed to replace computer codes currently used for design and safety analyses for U.S. Dept. of Energy projects at the Hanford site and elsewhere. These include codes such as HADCRT for tank farms and waste treatment plants and WESF, PFP, HANSF MCO and HANSF for spent nuclear fuel, sludge and the site’s “T plant” chemical separation facility. New features include the flammability and combustion of gases, vapors and aerosols model, and entrainment of deposits to form aerosols modeling. Other models include thermal radiation networks, event-oriented simulation and a limited distribution fire model. General capabilities include multiple-compartment thermodynamics and general species analysis, facility nodalization and flow, aerosol behavior, heat transfer determination, sources and time-dependent conditions, and nuclear fuel and sludge models including chemical reactions.