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Firac User's Manual : A Computer Code to Simulate Fire Accidents in Nuclear Facilities

By Nichols, B. D.

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Book Id: WPLBN0000205373
Format Type: PDF eBook
File Size: 11.9 MB
Reproduction Date: 2008
Full Text

Title: Firac User's Manual : A Computer Code to Simulate Fire Accidents in Nuclear Facilities  
Author: Nichols, B. D.
Volume:
Language: English
Subject: Government publications, Legislation., Government Printing Office (U.S.)
Collections: Government Library Collection
Historic
Publication Date:
Publisher: Government Printing Office

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Nichols, B. D. (n.d.). Firac User's Manual : A Computer Code to Simulate Fire Accidents in Nuclear Facilities. Retrieved from http://members.worldlibrary.net/


Excerpt
Introduction: This user’s manual supports an expanded and modified version of the computer code FIRAC. The expanded version is designed to predict the radioactive and nonradioactive source terms that lead to gas dynamic, material transport, and heat transfer transients in a nuclear facility when it is subjected to a fire. Tne code’s capabilities are directed toward nuclear fuel cycle facilities and the primary release pathway- the ventilation system. However, the code is applicable to other facilities and can be used to model other airflow pathways within a structure.

Table of Contents
CONTENTS ABSTRACT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 I. INTRODUCTIONl ......................................................0. z 11. PHYSICAL MODELS...................................................... 3 A. Gas DynamicsModels.............................................. 3 B. Material TransportModels........................................ c. Duct Heat Transfer Model.......l 0................................ 1: D. FIRIN Fire and RadioactiveSource Term Simulation . . . . . . . . . . . . . . . . 15 111. SYSTEM MODELING STRATEGIESFOR FIRE-INDUCEDTWNSIENTS. .............. 19 A. Generall ....................0.00..............................*.O 19 Fire Accident System Modeling........l .....0..................... 19 k System Modeling Examples.................l ...00...l ........l ..... 23 IV. USER INFORP14TIONAND PROGRAMMINGDETAILS............................. 35 A. Input Organization........l ..0..0................................ Input Format..................................................... :; :: Improved FIRAC Input Specifications..0..0........................ Input Processing...................................l ............. 1;? k Output Processing..........................l ..0.................. 111 F. DiagnosticMessagesl 0.00.00...................................... 118 G. FIRAC ProgrammingDetails........l ..0............................ 119 H. Compiling,Loading, and Executing Instructions................... 122 1. General User Hints and Suggestions............................... 128 J. Time and Cost Estimates................l .....0................... 130 v. SAMPLE PROBLEMS...................................................... 130 A. Introduction........l ..0......................................... 130 Sample Problem 1...................................l ............. 131 :: Sample Problem 2.................l .0............................. 161 APPENDIXA. GAS DYNAMICS SUMFWRY.......................................... 185 APPENDIX B. DUCT HEAT TRANSFER THEORY AND METHODS......................... 189 APPENDIX C. MATERIAL TRANSPORT THEORY..................................... 203 A??ENDIX D. BL(X4ERMODEL.................................................. 229 APPENDIX E. CONTROL DAPPER MODEL.................l ........................ 231 APPENDIX F. MODELING DUCTS AND VALVES..................................... 233 APPENDIX G. SAMPLE OUTPUT................................................. 236 REFERENCES................................................................. 300

 

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