Description: Please refer to the section BELOW (and NOT ABOVE) this line for the product details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Title:Computational Fluid Dynamics Analysis Of Natural Circulation Flows In A Pressurized-Water Reactor Loop Under Severe Accident ConditionsISBN13:9781500374853ISBN10:1500374857Author:Commission, U. S. Nuclear Regulatory (Author)Description:(This is a RePrint) - Computational Fluid Dynamics Is Used To Predict The Natural Circulation Flows Between A Simplified Reactor Vessel And The Steam Generator Of A Pressurized-Water Reactor (Pwr) During A Severe Accident Scenario The Results Extend Earlier Predictions Of Steam Generator Inlet Plenum Mixing With The Inclusion Of The Entire Natural Circulation Loop Between The Reactor Vessel Upper Plenum And The Steam Generator Tube Leakage And Mass Flow Into The Pressurizer Surge Line Are Also Considered The Predictions Are Utilized As A Numerical Experiment To Improve The Basis For Simplified Models Applied In One-Dimensional System Codes That Are Used During The Prediction Of Severe Accident Natural Circulation Flows An Updated Inlet Plenum Mixing Model Is Proposed That Accounts For Mixing In The Hot Leg Too The New Model Is Consistent With The Predicted Behavior And Accounts For Flow Into A Side Mounted Surge Line If Present A Density- Based Froude Number Correlation Is Utilized To Provide A Method For Determining The Flow Rate From The Vessel To The Hot Leg Directly From The Conditions At The Ends Of The Hot Leg Pipe This Provides A Physically Based Approach For Establishing The Hot Leg Flows The Mixing Parameters And Correlations Are Proposed As A Best-Estimate Approach For Estimating The Flow Rates And Mixing In One-Dimensional System Codes Applied To Severe Accident Natural Circulation Conditions Sensitivity Studies Demonstrate The Applicability Of The Approach Over A Range Of Conditions The Predictions Are Most Sensitive To Changes In The Steam Generator Secondary Side Temperatures Or Heat Transfer Rates To The Steam Generator Grid Independence Is Demonstrated Through Comparisons With Previous Models And By Increasing The Number Of Cells In The Model A Further Modeling Improvement Is Suggested Regarding The Application Of Thermal Entrance Effects In The Hot Leg And Surge Line This Work Supports The U S Nuclear Regulatory Commission Studies Of Steam Generator Tube Integrity Under Severe Accident Conditions Binding:Paperback, PaperbackPublisher:Createspace Independent Publishing PlatformPublication Date:2014-06-30Weight:0.45 lbsDimensions:0.16'' H x 11.02'' L x 8.5'' WNumber of Pages:78Language:English
Price: 18.11 USD
Location: USA
End Time: 2024-11-21T11:29:33.000Z
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Book Title: Computational Fluid Dynamics Analysis of Natural Circulation Flows in a Pressurized-Water Reactor Loop under Severe Accident Conditions
Number of Pages: 76 Pages
Language: English
Publisher: CreateSpace
Publication Year: 2014
Item Height: 0.2 in
Topic: General
Genre: Technology & Engineering
Item Weight: 9 Oz
Item Length: 11 in
Author: U. S. Nuclear Commission
Item Width: 8.5 in
Format: Trade Paperback
