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- *-------------------------------------------------------------
- CONTROL
- *-------------------------------------------------------------
- TITLE
- CHXMIX: Illustrate heat transfer in composite heat sinks when
- the gas thermal conductivity in the gap between the
- heat sinks is derived from the gas mixture in a region.
- END TITLE
- *
- TIMING
- TSTART 0. ! START TIME, >0 FOR RESTART RUN
- TLAST 36000. ! END TIME (Seconds) - 10 HOURS
- DTMIN 0.001 ! MIN TIMESTEP (Seconds)
- DTMAX ! MAX TIMESTEP (Seconds)
- 0. 3.0
- 36000. 3.0
- 1.0E6 3.0
- DTPRIN 3600. ! PRINT INTERVAL (Seconds)
- PLTMIN 10. ! MIN PLOT INTERVAL (Seconds)
- PLTMAX 100. ! MAX INTERVAL WITHOUT PLOT (Seconds)
- DTRST 3600. ! RESTART INTERVAL (Seconds)
- FTPCH 0.005 ! FRACTIONAL CHANGE IN T AND P
- FAECH 0.005 ! FRACTIONAL CHANGE IN AEROSOL MASS
- FPPLCH 0.03 ! FRACTIONAL CHANGE FOR PLOTTING
- END TIMING
- *
- COMPOUNDS 2
- ARGON HELIUM
- END COMPOUNDS
- *
- PRINT-T
- 1,1 1,8 1,15 2,1 2,8 2,15
- 3,1 3,8 3,15 4,1 4,8 4,15
- 5,1 5,8 5,15 6,1 6,8 6,15
- END PRINT-T
- *
- PLOT 1
- PRESSURE 4 1 2 3 10 ! Pressure
- GAS-T 4 1 2 3 10 ! Gas temperature
- HS-TI 6 1 2 3 4 5 6 ! Inner heat sink temperature
- HS-TA 6 1 2 3 4 5 6 ! Average heat sink temperature
- HS-TO 6 1 2 3 4 5 6 ! Outer heat sink temperature
- QSW 6 1 2 3 4 5 6 ! Heat input to sandwich heat sink
- QGAS-HSI 6 1 2 3 4 5 6 ! Heat input to heat sink from gas
- QGAS-HSO 6 1 2 3 4 5 6 ! Heat input to heat sink from gas
- QRAD-HSI 6 1 2 3 4 5 6 ! Rad heat input to heat sink
- QRAD-HSO 6 1 2 3 4 5 6 ! RAd heat input to heat sink
- GAS-X HELIUM 4 1 2 3 10 ! Gas Mole Fraction
- GAS-X ARGON 4 1 2 3 10 ! Gas Mole Fraction
- GAS-MASS HELIUM 4 1 2 3 10 ! Gas Mass (Species), kg
- GAS-MASS ARGON 4 1 2 3 10 ! Gas Mass (Species), kg
- END PLOT
- *
- PLOT 2
- HS-T 1 5 1 2 3 4 5 ! Heat sink 1 detail
- HS-T 1 5 6 7 8 9 10 ! Heat sink 1 detail
- HS-T 1 5 11 12 13 14 15 ! Heat sink 1 detail
- HS-T 2 5 1 2 3 4 5 ! Heat sink 2 detail
- HS-T 2 5 6 7 8 9 10 ! Heat sink 2 detail
- HS-T 2 5 11 12 13 14 15 ! Heat sink 2 detail
- HS-T 3 5 1 2 3 4 5 ! Heat sink 3 detail
- HS-T 3 5 6 7 8 9 10 ! Heat sink 3 detail
- HS-T 3 5 11 12 13 14 15 ! Heat sink 3 detail
- HS-T 4 5 1 2 3 4 5 ! Heat sink 4 detail
- HS-T 4 5 6 7 8 9 10 ! Heat sink 4 detail
- HS-T 4 5 11 12 13 14 15 ! Heat sink 4 detail
- HS-T 5 5 1 2 3 4 5 ! Heat sink 5 detail
- HS-T 5 5 6 7 8 9 10 ! Heat sink 5 detail
- HS-T 5 5 11 12 13 14 15 ! Heat sink 5 detail
- HS-T 6 5 1 2 3 4 5 ! Heat sink 6 detail
- HS-T 6 5 6 7 8 9 10 ! Heat sink 6 detail
- HS-T 6 5 11 12 13 14 15 ! Heat sink 6 detail
- END PLOT
- *
- * Run diagnostics
- *
- PLOT 3
- DELT
- ITDX
- ITERJN
- CPU
- END PLOT
- *
- REPORT 1
- QSW INDEX=1 TIME=1800
- QSW INDEX=3 TIME=1800
- QSW INDEX=5 TIME=1800
- QSW INDEX=1 TIME=7200
- QSW INDEX=3 TIME=7200
- QSW INDEX=5 TIME=7200
- QSW INDEX=1 END
- QSW INDEX=3 END
- QSW INDEX=5 END
- GAS-X HELIUM INDEX=3 TIME=1800
- GAS-X ARGON INDEX=3 TIME=1800
- GAS-X HELIUM INDEX=3 TIME=7200
- GAS-X ARGON INDEX=3 TIME=7200
- GAS-X HELIUM INDEX=3 END
- GAS-X ARGON INDEX=3 END
- END REPORT
- *
- ACTIVE MODELS
- IJUNC 1 ! Junction flow model
- ICCFLW 0 ! Counter-current flow model
- IHSINK 1 ! Heat sinks
- ICNDS 0 ! Condensation
- IHXPOL 0 ! Heat and Mass transfer on liquid pool
- IASED 0 ! Aerosol Sedimentation
- IALEAK 0 ! Aerosol Leakage
- IFOG 0 ! Fog formation
- ISRC 1 ! User-defined sources
- IMCO 0 ! MCO models
- ISENS 0 ! Sensitivity runs
- END ACTIVE MODELS
- *
- OPTIONS
- CELSIUS
- IPLTYP 2 ! 1=wrap around, 2=no wrap (spreadsheet format)
- END OPTIONS
- *
- *-----------------------------------------------------------------------
- * SOURCE GROUP:
- * ENTER: TIME, TEMP, FLOWRATES, POWER
- *
- SOURCES
- SOURCE 1
- REGION 3 GASES 1
- PLUME RADIUS 1.0 ELEVATION 10.0 DOWN
- ARGON
- * Time Temp kg/s Power
- 0.0 50.0 0.0 0.E0
- 3600.0 50.0 0.08 0.E0
- 32400.0 50.0 0.30 0.E0
- END REGION
- END SOURCES
- *
- END CONTROL
- *
- *-------------------------------------------------------------------
- VOLUMES
- *-------------------------------------------------------------------
- *
- REGIONS 1 10
- LABEL HE_TANK AMBIENT
- VOLUME 1000.0 1.0E6
- ZTOP 10.0 100.0
- ELEVATION 0.0 -1.0
- SED_AREA 50.0 1000.0
- TEMP_GAS 50.0 20.0
- PRESSURE 1.01325E5 1.01325E5
- END REGIONS
- *
- REGIONS 2 3
- LABEL AR_TANK PURGE_TANK
- SAME_AS 1 1
- END REGIONS
- *
- * Gas composition of each region; specify mole fraction of each
- * gas. No more than five columns at a time.
- *
- GASES 1 2 3 10
- HELIUM 1.0 0.0 1.0 1.0
- ARGON 0.0 1.0 0.0 0.0
- END GASES
- *
- END VOLUMES
- *
- *-------------------------------------------------------------------
- HEAT_SINKS
- *-------------------------------------------------------------------
- * Syntax:
- * IGEOM 1 for plane, 0 or 2 for cylinder
- * IMATHS material type
- * XRI Inner Radius (m)
- * XRO Outer Radius (m) for cylindrical,
- * thickness (m) for planar
- * AHS One-sided average heat sink area (m^2)
- * XZHS Axial length for conduction ( m)
- * TIINIT Initial inside surface temperature (C)
- * TOINIT Initial outside surface temperature (C)
- * IMSLAB Number of slabs, 3 is minimum. Use 1 for lumped heat
- * sink
- * IREGI Region index for inner surface or 0 (insulated)
- * or -1 for constant temperature
- * TIHS Region surface temperature when IREGI = -1 (C)
- * IREGO Region index for outer surface or 0 (insulated)
- * or -1 for constant temperature
- * TOHS Region surface temperature when IREGO = -1 (C)
- * XLHS Characteristic length for natural convection (m)
- * If different from material type:
- * RHO Density (kg/m^3),
- * KHS Thermal Conductivity (W/m/K)
- * CPHS Specific Heat (J/kg/K)
- * QV Volumetric Heat Generation (W/m^3)
- * EHSI Emissivity of inner surface
- * User has an option to input a temperature dependent
- * emissivity by inputting a negative integer for the
- * emissivity and supplying the corresponding temperature
- * versus emissivity look-up table. See TTABLE & ETABLE
- * keywords.
- * EHSO Emissivity of outer surface
- ******************************************************************
- *
- SINKS 1 2
- LABEL HOT_1 COLD_1
- IGEOM 1 1 ! Planar geometry
- IMATHS 1 1 ! Copper
- IORIHS 0 0 ! Vertical orientation
- IMSLAB 15 15 ! 14 nodes plus 2 half-nodes
- IREGO -1 0 ! Outer boundary condition: 50C vs Reg. 1
- IREGI 0 -1 ! Inner boundary condition: Reg 1. vs 20C
- TOHS 50.0 0.0 ! Fixed outer surface temperature
- TIHS 0.0 20.0 ! Fixed inner surface temperature
- XRI 0.0 0.0 ! Inner radius
- XRO 0.01 0.01 ! Thickness
- AHS 1.0 1.0 ! Mean cross-sectional area
- TOINIT 50.0 20.0 ! Outside surface initial temperature
- TIINIT 50.0 20.0 ! Inside surface initial temperature
- XZHS 1.0 1.0 ! Axial conduction length
- ZTHS 2.0 2.0 ! Upper coordinate
- ZBHS 1.0 1.0 ! Lower coordinate
- VHS 0.01 0.01 ! Volume
- END
- *
- SINKS 3 4
- LABEL HOT_2 COLD_2
- SAME_AS 1 2
- IREGO -1 0 ! Outer boundary: 50C vs Reg. 2
- IREGI 0 -1 ! Inner boundary: Reg 2. vs 20C
- END
- *
- SINKS 5 6
- LABEL HOT_3 COLD_3
- SAME_AS 1 2
- IREGO -1 0 ! Outer boundary: 50C vs Reg. 3
- IREGI 0 -1 ! Inner boundary: Reg 3. vs 20C
- END
- *
- MATERIAL LIBRARY
- * Name IMATHS RHO KHS CP QV EHSI EHSO
- COPPER 1 8954. 398.0 384. 0. 0.7 0.7
- STAINLESS-STEEL 2 8000. 16.0 500. 0. 0.3 0.3
- END MATERIAL LIBRARY
- *
- * Composite heat sinks:
- *
- COMPOSITE NET=1 1 2
- IFLIP 0 0
- FMULT 1.0 1.0
- XGAP 0.01
- KGAP HELIUM
- END COMPOSITE
- *
- COMPOSITE NET=2 3 4
- IFLIP 0 0
- FMULT 1.0 1.0
- XGAP 0.01
- KGAP ARGON
- END COMPOSITE
- *
- COMPOSITE NET=3 5 6
- IFLIP 0 0
- FMULT 1.0 1.0
- XGAP 0.01
- KGAP REGION-3
- END COMPOSITE
- *
- END HEAT_SINKS
- *
- *-------------------------------------------------------------------
- JUNCTIONS
- *-------------------------------------------------------------------
- PATHS 1
- LABEL VENT
- IJTYP 1
- ICCJN 1
- IHORIZ 0
- AJN 0.01
- CJN 1.0
- IR1 3
- IR2 10
- Z1JN 10.0
- Z2JN 11.0
- END PATHS
- END JUNCTIONS
- *-------------------------------------------------------------------
- * __END__
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