Evaluation of a Model for the Evaporation of Fuel From a Liquid Pool in a CFD Fire Code

Brown, Alexander L.; Vembe, B. E.

doi:10.1115/imece2006-15147

Cited by 6 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A simple one-dimensional liquid pool model was employed for these calculations [Brown 2006]. The model conserves mass and energy at the pool surface and emits fuel at a rate governed by the incident radiation and convective flux.…”

Section: One-dimensional Pool Modelmentioning

confidence: 99%

NSRD-16: Computational Capability to Substantiate DOE-HDBk-3010 Data

Louie

Bignell

et al. 2019

View full text Add to dashboard Cite

Safety basis analysts throughout the U.S. Department of Energy (DOE) complex rely heavily on the information provided in the DOE Handbook, DOE-HDBK-3010, Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, to determine source terms. In calculating source terms, analysts tend to use the DOE Handbook's bounding values on airborne release fractions (ARFs) and respirable fractions (RFs) for various categories of insults (representing potential accident release categories). This is typically due to both time constraints and the avoidance of regulatory critique. Unfortunately, these bounding ARFs/RFs represent extremely conservative values. Moreover, they were derived from very limited smallscale table-top and bench/laboratory experiments and/or from engineered judgment. Thus the basis for the data may not be representative to the actual unique accident conditions and configurations being evaluated. ACKNOWLEDGMENTS Dr. Louis F. Restrepo of Atkins NS has provided guidance and review for this project. He is one of the original contributors and reviewers to DOE-HDBK-3010, and both his expertise with DOE-HDBK-3010 and his extensive experience in the U.S. Department of Energy (DOE) facility nuclear safety have helped this project significantly. We also thank the summer intern, Ethan T. Zepper, for providing support in the simulations of the pool fire scenario, Dr. John Bignell for assisting the use of Presto code for the impact powder can simulation early in the project, and many of the SIERRA's solid mechanics team for their support, especially Dr.

show abstract

Section: One-dimensional Pool Modelmentioning

confidence: 99%

NSRD-16: Computational Capability to Substantiate DOE-HDBk-3010 Data

Louie

Bignell

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Resuspension mechanism. 50 second simulation 1-D pool model [Brown 2006], 2 mm fuel height, 50 µm surface roughness.…”

Section: Simulation Scenariosmentioning

confidence: 99%

NSRD-06. Computational Capability to Substantiate DOE-HDBK-3010 Data

Louie

Brown

2015

View full text Add to dashboard Cite

Safety basis analysts throughout the U.S. Department of Energy (DOE) complex rely heavily on the information provided in the DOE Handbook, DOE-HDBK-3010, Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, to determine radionuclide source terms. In calculating source terms, analysts tend to use the DOE Handbook's bounding values on airborne release fractions (ARFs) and respirable fractions (RFs) for various categories of insults (representing potential accident release categories). This is typically due to both time constraints and the avoidance of regulatory critique. Unfortunately, these bounding ARFs/RFs represent extremely conservative values. Moreover, they were derived from very limited small-scale bench/laboratory experiments and/or from engineered judgment. Thus, the basis for the data may not be representative of the actual unique accident conditions and configurations being evaluated.The goal of this research is to develop a more accurate and defensible method to determine bounding values for the DOE Handbook using state-of-art multi-physicsbased computer codes. This enables us to better understand the fundamental physics and phenomena associated with the types of accidents in the handbook. In this year, ACKNOWLEDGMENTS Dr. Louis F. Restrepo of Atkins NS has provided guidance and review for this project. He is one of the original contributors and reviewers to DOE-HDBK-3010, and both his expertise with DOE-HDBK-3010 and his extensive experience in the U.S. Department of Energy (DOE) facility nuclear safety have helped this project significantly. We also thank the summer interns, Cole C. Mueller and Bobbi Merryman for providing support in the Fuego simulations of the 50 psig powder release experiment and the Fish experiment, Michael Wagner for developing the mesh model for the powder release simulations,

show abstract

“…Liquid fuel vaporization rates were computed using the model described in Brown and Vembe [20], which predicts pool evaporation on the basis of convective and radiative flux at the pool surface. This model has been found to reasonably approximate the vaporization Modeling of Large-scale Benchmark Enclosure Fire Suppression behavior of liquid fuels to incident flux.…”

Section: Two Phase Flow Fire Suppression Modelingmentioning

confidence: 99%

Experiments and Modeling of Large-scale Benchmark Enclosure Fire Suppression

Yoon

Figueroa

Brown

et al. 2009

Journal of Fire Sciences

Self Cite

View full text Add to dashboard Cite

This article presents a series of experiments on benchmark fire suppression. The experiments were performed in a controlled environment, utilizing a cylindrical object or calorimeter centered above a 2 m diameter pan filled with kerosene-based hydrocarbon fuel, JP8. The experimental setup and procedure for gathering data on water suppression performance are presented. The characteristics of the nozzles used in the experiments are presented as well. The experimental results provide the boundary condition and temporal data necessary for validation of the fire suppression models used. The article also includes simulation results on the fire suppression experimental tests. The suppression simulations were carried out using a numerical model based on a Temporally Filtered Navier-Stokes (TFNS) formulation coupled with a Lagrangian model for droplets, which includes detailed descriptions of the interaction between the water droplets and the fire plume. The results from both experiments and simulations suggest that the criterion for complete suppression depends on a combination of factors including the mass flow rate (or nozzle diameter), nozzle operating pressure, and calorimeter presence. A critical regime which distinguished the regions of suppression and no-suppression in the domain of the mass flow rate versus operating pressure is found.

show abstract

Evaluation of a Model for the Evaporation of Fuel From a Liquid Pool in a CFD Fire Code

Cited by 6 publications

References 8 publications

NSRD-16: Computational Capability to Substantiate DOE-HDBk-3010 Data

NSRD-16: Computational Capability to Substantiate DOE-HDBk-3010 Data

NSRD-06. Computational Capability to Substantiate DOE-HDBK-3010 Data

Experiments and Modeling of Large-scale Benchmark Enclosure Fire Suppression

Contact Info

Product

Resources

About