R52TRACE Plug-in Users Manual
Contents
1. KineticsConverter The Reactivity feedback data defined inside RELAPS is not currently converted to the TRACE feedback tables The process detailing how feedback data should be converted for the different RELAPS models must be addressed RELAPS to TRACE Converter User s Manual 102. NN E e PR ee RARE E ERR IN lo s oe ees 1 11 Installation Instr uctions eu ri RER Reset 1 2 ser Interface aa ie ee ee ae eee 3 2 1 Component Selection rt a E E ES 3 2 2 Conversion Options u cte are diete depen oae onte eee ea eer aee 4 2 3 Conyersion Repott ie dei epe e epo E E Ra e ege e pee te ER be egens 4 3 Conversi n D tails 2 22 ee re nen RR ERR e ERR RB e Prae ee eodd 7 3 1 Hydraulic Components 1 REC Rex t e eere tres 7 3 2 Heat Components nennen E Ord eb ediderat e Dada 7 3 3 Power Components Aeg ep sie e deae ke Aa nen 7 3 4 Control Components rn ns ee db nel 7 AOpen ISSUES RR EE 9 4 1 Multiple Inlet and Outlet Connections cocccoccccncncncnnnnnnnnnnnnnnnnnnnnnnnninnnnnos 9 4 2 Radiation Enclosure Beam Lengths eee 9 4 3 Heatstructure General Tables esee e 9 4 4 Control System Engineering Units coccccncncnononnnnnonononnnonnnonononnnnnononnnnnnnnnnos 9 4 5 Unsupported Components 000 000 eeeeeeececececececececececececeeecececeeeeeeeeeeeeeeeees 10 4 6 Partially Implemented Converters sse 10 4 6 1 PipeConverter in unten een nee 10 A 6 2 He tConveiler u a aa name fan ae 10 4 6 3 PutnpConverter decia di ran DREI DR 10 4 64 ValveConverter eroriaren otea aE R tado delo edo Ria 10 4 6 5 KineticsConverter AA eate tee e ene eH ee Lene eee ens 10 RELAPS to TRACE Converter lii User s Manual iv C
3. heat structure in the RELAPS model that specified the Reactor Kinetics for a source location is connected to the Power component The resulting power component will incorporate general tables from the RELAPS model directly into the power tables in TRACE The feedback tables in RELAPS5 are dependent on moderator density and as such cannot be converted directly to TRACE Trace uses a combination of moderator temperature and void fraction for determining reactor feedback 3 4 Control Components The control systems inside a RELAP model are converted into the equivalent values inside TRACE There are several RELAP3 control components that have no direct correlation in TRACE The RELAPS logical trips are converted to small control networks that produce a TRACE trip with a logical control component as an input value The following RELAPS Control components cannot be converted to trace as they have no corresponding system 1 Shaft Controller 2 Pump Conmponent Controller 3 Steam Flow Controller 4 Feedwater Flow Controller 5 Digital Timer 6 Inverse Kinetics Component RELAPS to TRACE Converter 7 User s Manual Chapter 4 Open Issues Dispite the similarities between RELAP5 and TRACE the inherent differences between their input specifications may require modification by the user either before or after model conversion Most simple models convert automatically with no additional action required however more complex models will be l
4. 1 Conversion Menu Item 2 1 Component Selection The category selection panel displays the list of categories of components in the selected RELAPS model that can be converted to TRACE Figure 2 2 Category Selection Panel displays the selection panel in the conversion dialog When a category is selected the panel provides s selection button which opens a component selection dialog also displayed in the figure which allows selecting individual components from a category for conversion All of the components within a selected category are included by default when the category is initially selected The component selection dialog allows the user to remove individual components from the selection 000 Convert to TRACE Include Category v t 109 Hydraulic Components v P8432 Control Systems v i 17 Heat Structures v HI 5 Materials v X 1 Kinetics O O Select Components for C wi j 23 Views Include Category m E CB 1 sum cormass a x IE rho 335010000 v EI rho 335020000 v I rho 335030000 Erho 335040000 v HZ rho 335050000 lv E rho 335060000 v EkKCB2 sum upmass Ok Cancel Tr f Select All Clear Selection Selection Vessels Options Ok Save amp Close Cancel Figure 2
5. 2 Category Selection Panel RELAPS5 to TRACE Converter 3 User s Manual Conversion Options 2 2 Conversion Options Certain component converters allow the user to specify values during the conversion process For example the user defined material tables in RELAPS define volume heat capacity as either a constant or a function of temperature TRACE user defined materials however require specific heat To convert the two values a density is required To simplify the conversion a constant density is defined along with a constant emissivity Both of these values may be specified for each of the materials converted though default values are provided Figure 2 3 Converter Options Panel below displays the options panel with a material converter selected Convert to TRACE IN Materials HI Material 1 HI Material 2 Mi Material 3 HI Material 4 HI Material 5 C Disabled 9 General Density 624 27961 bmjft Emissivity 0 8 2 Selection Vessels Options Ok Save amp Close Cancel Figure 2 3 Converter Options Panel 2 3 Conversion Report After completing the conversion the results will be presented in a report dialog as shown in Figure 2 4 Report Dialog The report dialog details each RELAP56 component that has been converted and lists the corresponding TRACE components The info button LIZ in the results column opens a small dialog which displays
6. R52TRACE Plug in Users Manual Symbolic Nuclear Analysis Package SNAP Version 3 0 4 October 25 2012 Applied Programming Technology Inc 240 Market St Suite 208 Bloomsburg PA 17815 1951 R52TRACE Plug in Users Manual Applied Programming Technology Inc by Ken Jones Bill Dunsford John Rothe and Don Ulshafer Copyright 2006 2009 Disclaimer of Liability Notice The Nuclear Regulatory Commission and Applied Programming Technology Inc provide no express warranties and or guarantees and further disclaims all other warranties of any kind whether statutory written oral or implied as to the quality character or description of products and services its merchantability or its fitness for any use or purpose Further no warranties are given that products and services shall be error free or that they shall operate on specific hardware configurations In no event shall the US Nuclear Regulatory Commission or Applied Programming Technology Inc be liable whether foreseeable or unforeseeable for direct incidental indirect special or consequential damages including but not limited to loss of use loss of profit loss of data data being rendered inaccurate liabilities or penalties incurred by any party or losses sustained by third parties even if the Nuclear Regulatory Commission or Applied Programming Technology Inc have been advised of the possibilities of such damages or losses Table of Contents
7. concerning the conversion process for that component This includes the numbers and types of components created and key component properties before and after the conversion For example hydraulic components display the total volume and elevation change before and after the conversion and heat structures display their total inside and outside surface areas RELAPS5 to TRACE Converter User s Manual 4 Conversion Report Conversion Results Source ACCUM 190 intaccum ACCUM 290 snglaccm ANNULUS 315 dcomer BRANCH 102 hl BRANCH 116 iclpd BRANCH 174 isgs dnc Results Y Pipe 190 intaccum j7 Y Pipe 290 snglaccm Y Pipe 315 dcomer Z v 3 Pipe 116 iclpa 77 Y 3 Pipe 174 isgs d 47 ranches Branches ranches BRANCH 180 isgs s d BRANCH 212 bclpd BRANCH 274 bsgs dnc BRANCH 280 bsgs s d Y 2 Pipe 180 isgs s i7 Y 3 Pipe 212 belpd 47 Y 3 Pipe 274 bsgs i7 Y 2 Pipe 280 bsgs 47 Branches BRANCH 300 inlet v 3 Pipe 300 inlet L 47 Branches BRANCH 305 inletlow Y 3 Pipe 305 inletlo 47 Branches BRANCH 322 Iplenuml Y 4 Pipe 322 plenu LIZ Branches BRANCH 330 Iplenum2 Y 4 Pipe 330 Iplenu 17 Branches Branches BRANCH 345 upvol2 BRANCH 355 upperhd1 Y 3 Pipe 345 upvol 47 4 Pipe 355 upper LIZ Control Blocks ontrol Blocks Control Blocks Control Block
8. e exported to an HTML file 1 1 Installation Instructions SNAP plug ins are loaded when the ModelEditor is opened or when the Calculation Server is started These plug ins are loaded from the plugins directory located in SNAP s installation directory The SNAP installation directory defaults to C Program Files snap under Microsoft Windows and usr local snap under Apple OS X Linux and Unix systems To install the R52TRACE plug in simply copy the file r52trace plugin jar from the distribution into the plugins directory of the SNAP installation The R52TRACE plugin will then be available the next time the ModelEditor is started A list of the installed plug ins along with their version information can be displayed by selecting the Plug ins button located on the ModelEditor s About dialog RELAPS to TRACE Converter 1 User s Manual Chapter 2 User Interface The R52TRACE conversion plug in is available on the Tools menu when a RELAP5 model is selected The menu item shown in Figure 2 1 Conversion Menu Item opens the primary conversion dialog which controls the conversion processed If the model has been previously converted to TRACE the dialog will open on the last panel displayed during the most recent conversion process File Edit Tools Window Help Check Model Submit Job Steam Tables c p Export to jEdit t Convert To TRACE ol o E Export TPR wna 24 ores Figure 2
9. eat transfer 4 3 Heatstructure General Tables General tables in RELAP are shared look up tables that return the appropriate dependent value when provided with an independent value In this way a general table that determines heat transfer coefficient based on temperature value may be used by multiple heat structure surfaces each with a different temperature value TRACE general tables require either a control block or signal variable which provide a constant independent variable value source Each TRACE general table has a single value for a given timestep based on the value of its independent variable source A general table which determines heat transfer coefficient based on temperature would provide the same value for HTC for every heat structure surface that uses that general table One partial solution is to extract the general table into a Function type control block ICBN 102 which uses the appropriate surface temperature as the independent variable value 4 4 Control System Engineering Units Unlike TRACE RELAPS control systems do not include engineering unit specifications for constants gains minimum and maximum values This may result in numerical conversion errors RELAPS to TRACE Converter 9 User s Manual Unsupported Components when converting RELAPS control systems from a model using British units The converted model should be carefully reviewed to ensure that the control systems behave properly Special atten
10. hapter 1 Introduction The Symbolic Nuclear Analysis Package SNAP consists of a suite of integrated applications designed to simplify the process of performing thermal hydraulic analysis SNAP provides a highly flexible framework for creating and editing input for engineering analysis codes as well as extensive functionality for submitting monitoring and interacting with the analysis codes The modular plug in design of the software allows functionality to be tailored to the specific requirements of each analysis code The TRAC RELAP Advanced Computational Engine TRACE is a best estimate reactor systems code developed by the U S Nuclear Regulatory Commission NRC as the product of an effort to combine TRAC P TRAC B RELAP and RAMONA TRACE is designed for analysing neutronic thermal hydraulic behavior in light water reactors RELAPS5was developed for best estimate transient simulation of light water reactor coolant systems and models the reactor coolant system coupled with the core for loss of coolant accidents Its generic modeling approach permits simulating a variety of hydraulic systems RELAPS and TRACE are currently supported by SNAP The RELAP3 to TRACE conversion plug in RS2TRACE is designed to convert RELAPS models complete with control systems kinetics and heat structures into functionally equivalent TRACE models After the conversion process is complete a report is generated that details the conversion results The report can b
11. ikely required additional model editing The primary areas of concern include cell elevation changes treatment of multiple inlet and outlet connections unsupported RELAPS signal variables radiation enclosure beam lengths heat structure general tables control system engineering units and unsupported components 4 1 Multiple Inlet and Outlet Connections RELAPS allows any number of hydraulic connections to any face of a volume This includes internal edges This behavior can be mimiced with cross flow connections in TRACE however when the orientation of the source and target cells differ the elevation change across the crossflow connection may not be preserved For example consider the case of a horizontal pipe connected to the inlet of a vertical pipe in RELAPS5 When the connection is converted to a crossflow in TRACE the horizontal pipe is assumed to connect at the cell center of the target pipe This will result in a net elevation change of one half the target cells length 4 2 Radiation Enclosure Beam Lengths TRACE radiation enclosures define both View Factor arrays and Beam Lengths between heat structure surfaces Relap radiation components only define the View factors The RS2TRACE plug in will fill the Beam Lengths array with 0 0 to allow the model to pass TRACE input processing TRACE accepts a beam length array defined as 0 0 but this input is interpreted to mean the fluid between the surfaces does not participate in the radiation h
12. s CB 1 sum cormass CB 2 sum upmass CB 3 sum lpmass CB 4 sum dnmass Y Sum l cormass GZ Y Sum 3 Ipmass LIZ Control Blocks Figure 2 4 Report D CB 5 sum uhmass ialog RELAPS to TRACE Converter User s Manual Chapter 3 Conversion Details 3 1 Hydraulic Components All hydraulic components defined in a RELAPS model can be converted into corresponding TRACE hydraulic components TRACE V 2 0 provided support for elevation changes applying at the edges of hydraulic cells through the namelist variable ILEV 3 The hydraulic state properties from RELAP are converted to the TRACE state values by using the steam tables This causes problems when the desired state is outside the blank region 3 2 Heat Components The heat structure components are converted into the corresponding TRACE heat structures The primary point of interest is that source data for heat structures is converted to Power components in TRACE The resulting power component provides a power in the same way as the original heat source Only heat structures with uniform source data will spawn a power component The heat structure source multiplier ISM value is preserved as the axial power profile for the heat structure and if reflood is turned on the power profile duplicate the first and last rows 3 3 Power Components The Point Kinetics model inside RELAPS is converted into a Power component inside the TRACE model Each
13. tion should be focused on Trip setpoints table entries and control block initial values It is recommended that the RELAPS model first be converted to SI units in SNAP and tested prior to converting to TRACE 4 5 Unsupported Components The RELAPS Turbine component as well as the RELAP5 3D multid and feedwater heater components are not currently supported by the converter plug in 4 6 Partially Implemented Converters 4 6 1 4 6 2 4 6 3 4 6 4 4 6 5 The following converters have been partially implemented but require further development PipeConverter The pipe converter must be modified to support the pipe type flags These will enable the conversion of CANDU channels and accumulator components This converter will must be adjusted to support the final decision regarding bent pipes as discussed above HeatConverter RELAPS heat structures contain power data in the source cards The source data must be converted into spawned power components in TRACE when the source data varies along the length of the heat structure All the boundary conditions available for RELAPS heat structures need to be accounted for and converted correctly to TRACE PumpConverter Further investigation is required to ensure that the PumpConverter correctly converts all types of RELAP5 pumps to TRACE ValveConverter Further analysis is required to ensure that all valid RELAPS valve types are correctly supported by the conversion utility
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