Example Output File (ascii format)
The first half of this "output" file is a echo of the input file. This give the analyst the opportunity to verify that what was intended was actually interpreted correctly. The latter half of this file are the results from the computer run. Press here to jump to it.
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TAK 2000
Thermal Analysis Kit 2000 PRO
Release 2.00
K & K Associates
Serial Number: 265100
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Input File: dewar2.TAK
HEADER OPTIONS DATA
C <<< SIRTF THERMAL MATH MODEL >>>
C Large Configuration
SOLRTN = SSITER $ Steady State solution
SUMMARY = ON $ Print data block summaries
UID = SI
-------------------------------- Options Summary --------------------------------
Option Default Current Description
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LOGIC OFF OFF Compile/Link User Logic
AUTODAMP ON ON Automatic Relaxation Factor, S.S. Only
QDUMP ON ON Generate Network Heat Flow Map
LODTMP OFF OFF Load Initial Temperatures From .INI File
CSGDUMP OFF OFF Print nodal CSG data
QPRINT OFF OFF Print Impressed Heating Rates
CPRINT OFF OFF Print Thermal Masses
GPRINT OFF OFF Print Conductor Values
HPRINT ON ON Print Heater Status
SUMMARY ON ON Print Data Block Summaries
LPRINT ON ON Print Louver Status
PLOTQ OFF OFF Create Heating Rate Plot File .PLQ
DICTIONARIES OFF OFF Print Actual/Relative Data Dictionaries
UID None SI Units, ENG=English, SI=Sys. International
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HEADER CONTROL DATA
SIGMA = .56700E-08 $ Stephan-Boltzmann
ABSZRO = 0.000 $ Absolute temperature
c MLI Blankets: effective emissivity ,area (sqcm), and thickness (cm)
E_outer = .00081 , A_outer = 5.617E+05, T_outer = 8. $ Outer MLI OS to OVCS
E_mid = .0019 , A_mid = 5.368E+05, T_mid = 4. $ OVCS to MVCS
E_inner = .0056 , A_inner = 5.186E+05, T_inner = 3. $ MVCS to IVCS
E_last = .01361 , A_last = 3.969E+05 $ IVCS to MCT
A_fb = 2.077E+04 $ area of fwd baffle
C_mli = 1.5E-06 $ MLI conductivity mw/cm-K
--------------------- Program Control Constants Summary ---------------------
Constant Description Default Current Value
NLOOPS Max # of iterations (S.S.) 100 100
NLOOPT Max # of iterations (trans.) 50 50
TIMEO Start or "old" time 0.0 0.0000
TIMEND Stop or "end" time none 0.0000
OUTPUT Output interval none 0.0000
SIGMA Stefan-Boltzmann constant 1.0 5.6700E-09
ABSZRO Absolute zero temperature, SI -273.0 0.000
MAXTEMP Max. allowable temperature 10000. 10000.
TRCRIT Convergence criteria (trans.) 0.01 1.0000E-02
SSCRIT Convergence criteria (S.S) 0.001 1.0000E-03
DAMP Relaxation factor (S.S.) 1.0 1.00
PLOT Plot file output frequency 0.0 0.0000
SCALE Plot file time scale factor 1.0 1.000
DTIMEI Transient time-step none 0.0000
DTIMEL Minimum time-step allowed 1.0E-30 1.0000E-30
DTIMEH Maximum time-step allowed 1.0E+30 1.0000E+30
IFC Output units:1=C,2=F,3=K,4=R 0 3
---------------------------- User Constants Summary ---------------------------
E_OUTER = 8.100E-04 A_OUTER = 5.617E+05
T_OUTER = 8.000E+00 E_MID = 1.900E-03
A_MID = 5.368E+05 T_MID = 4.000E+00
E_INNER = 5.600E-03 A_INNER = 5.186E+05
T_INNER = 3.000E+00 E_LAST = 1.361E-02
A_LAST = 3.969E+05 A_FB = 2.077E+04
C_MLI = 1.500E-06
Number of user defined constants = 13 ( 300 Maximum )
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HEADER NODE DATA
1, 10.000, 1.00 $ Clevis
117, 10.000, 1.00 $ Hot MIC
118, 10.000, 1.00 $ Cold MIC
220, 10.000, 1.00 $ Forward Baffle
260, 10.000, 1.00 $ Secondary Mirror
261, 10.000, 1.00 $ Chopper Motor and Housing
280, 10.000, 1.00 $ FGS
301, 10.000, 1.00 $ IVCS
401, 10.000, 1.00 $ MVCS
501, 10.000, 1.00 $ OVCS
621, 10.000, 1.00 $ Strap, outer
622, 10.000, 1.00 $ Strap, mid
623, 0.010, 1.00 $ Strap, inner
-800, 1.700, 1.00 $ MCT (main cryo tank)
-900, 200.000, 1.00 $ Outer Shell
-------------------------------- Node Summary --------------------------------
Node Type Option # Nodes Description
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Diffusion 13 Regular Non-Zero Mass
Boundary 2 Regular Boundary
Total Number of Nodes = 15 ( 3000 Maximum )
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HEADER CONDUCTOR DATA
c internal radiation
-1001, 900, 501, 0.372E+02 ,-1002, 220, 261, 0.1362E+02
-1003, 220, 800, 0.179E+01 ,-1004, 220, 800, 0.588E+04
C MLI ( area(sqcm) * e )
-1005, 900, 501, A_outer * E_outer ,-1006, 501, 401, A_mid * E_mid
-1007, 401, 301, A_inner * E_inner ,-1008, 301, 220, A_fb * E_last
-1009, 301, 800, A_last * E_last
2001, 118, 800, 25. $ Baseplate to Cold MIC
2002, 1, 900, 25. $ OS to clevis
2003, 117, 800, 15. , 2004, 117, 800, .207 $ Hot MIC
2005, 260, 261, .15 , 2006, 261, 800, 15.0 $ Sec mirror Assy
2007, 220, 301, 10.0 $ FB support, Fiberglas
2008, 280, 501, 10.0 $ FGS sunk to OVCS
2009, 621, 501, 100., 2010, 622, 401, 100. $ Straps to VCS
2011, 623, 301, 100. $ Straps to VCS
2012, 900, 301, .235, 2013, 301, 800, .00267 $ fill line
2014, 900, 501, 2.48, 2015, 501, 401, 8.87 $ wires
2016, 401, 301, 5.53, 2017, 301, 800, .418 $ wires
2018, 900, 501, C_mli * A_outer / T_outer $ MLI conductance
2019, 501, 401, C_mli * A_mid / T_mid $ MLI conductance
2020, 401, 301, C_mli * A_inner / T_inner $ MLI conductance
c Flow conductors as a funtion of heat load on node 800 (helium)
c Hv(helium)=23000.
FLQ 3001, -800, 261, 500, 1./23000., 800 $
FLQ 3002, -261, 117, 500, 1./23000., 800 $
FLQ 3003, -117, 220, 500, 1./23000., 800 $
FLQ 3004, -220, 301, 500, 1./23000., 800 $
FLQ 3005, -301, 401, 500, 1./23000., 800 $
FLQ 3006, -401, 501, 500, 1./23000., 800 $
c Strap conduction a function of temperature
SIV 4001, 1, 621, 1, 0.123E+01 $ STRAPS L=30 cm AREA=36.8 sqcm
SIV 4002, 621, 622, 1, 0.613E+01 $ STRAPS L=6.0
SIV 4003, 622, 623, 1, 0.123E+02 $ STARPS L=3.0
SIV 4004, 623, 800, 1, 0.968E+00 $ STRAPS L=38.
SIV 4005, 280, 800, 2, 0.242E-01 $ FGS mounting (fiberglas tube)
----------------------------- Conductor Summary -----------------------------
Cond. Type Option # Cond. Description
--------------------------------------------------------
Linear 20 Regular
Linear SIV 5 Temp. Varying, Type I
One-Way FLQ 6 Mass Flow as f( Q )
Radiation 9 Regular
Total Number of Conductors = 40 ( 15000 Maximum )
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HEADER ARRAY DATA
500 $ Cp(helium)
0., 5200., 300.,5200., END
c Thermal Conductivity of Straps
c Ref: Report 773.30-81-1, J.G. Hust, NBS, June 1983
1
c
c T k
c (K) (mw/cm-K)
c -----------------------
4.000, 0.584
5.000, 0.814
6.000, .9900
8.000, 1.240
10.000, 1.400
15.000, 1.650
30.000, 2.150
40.000, 2.480
50.000, 2.850
60.000, 3.180
80.000, 3.880
100.000, 4.540
150.000, 6.000
200.000, 7.190
300.000, 8.900, END
C
C THERMAL CONDUCTIVITY OF G-10CR
C
2
C
C T k
C (K) (mW/cm-K)
C ----- ---------
0.0, 0.000
4.0, 0.881
6.0, 1.080
8.0, 1.260
10.0, 1.410
15.0, 1.730
20.0, 2.010
25.0, 2.250
30.0, 2.470
35.0, 2.680
40.0, 2.870
50.0, 3.220
60.0, 3.550
70.0, 3.820
76.0, 4.000
80.0, 4.100
90.0, 4.360
100.0, 4.600
120.0, 5.050
140.0, 5.470
160.0, 5.870
180.0, 6.230
200.0, 6.580
250.0, 7.370
300.0, 8.100, END
-------------------------------- Array Summary --------------------------------
Number of Arrays = 3 ( 1500 Maximum )
Total Number of Elements = 87 ( 20000 Maximum )
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HEADER SOURCE DATA
C Constant Heat Sources (mw)
117, 150.000 $ hot MIC
118, 50.000 $ cold MIC
261, 30.000 $ chopper motor
280, 50.000 $ FGS
220, 80.000 $ Aperature heating
------------------------------ Source Summary ------------------------------
Source Type Option # Sources
----------------------------------------
Constant 5
Total Number of Non-Constant Source Calls 0 ( 1000 Maximum )
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Processing of input file completed - No errors detected.
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------------------------------
Begin Solution: Routine SSITER
------------------------------
Time = 0.0000 : Temperatures (K) : CSGMIN = 0.0000
===============================================================================
T 1= 10.000 T 117= 10.000 T 118= 10.000 T 220= 10.000
T 260= 10.000 T 261= 10.000 T 280= 10.000 T 301= 10.000
T 401= 10.000 T 501= 10.000 T 621= 10.000 T 622= 10.000
T 623= 0.010 T 800= 1.700 T 900= 200.000
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Solution has converged after 20 iterations.
Node 301 has the maximum temperature difference = 0.62370E-03
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Time = 0.0000 : Temperatures (K) : CSGMIN = 0.0000
===============================================================================
T 1= 178.950 T 117= 4.517 T 118= 3.700 T 220= 10.348
T 260= 2.191 T 261= 2.191 T 280= 114.384 T 301= 29.141
T 401= 56.641 T 501= 110.335 T 621= 104.686 T 622= 59.634
T 623= 36.459 T 800= 1.700 T 900= 200.000
To truly understand the heat transfer process you need more than temperatures.
The Heat Balance data below provides such data. It is a summary, node by
node, of heat in versus heat out. Remember, heat in should be
equal to heat out in a steady state condition. "TYPE" refers to either boundary, diffusion, or
arithmetic nodes. "COND" refers to the conductor reference number. "T" refers to the type
of conductor; "L" for linear, "R" for radiation, or "F" for a flow conductor.
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ------------------------- Network Heat Balance Map ------------------------- All units are the same as input units |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 1 DIFF Clevis 178.950 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 900 Outer Shell 200.000 2002 L 2.500E+01 5.262E+02 621 Strap, outer 104.686 4001 L 7.086E+00 -5.262E+02 Total energy balance on node is -1.22070E-04 or 0.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 118 DIFF Cold MIC 3.700 1.00 50.0 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 800 MCT (main cryo tank) 1.700 2001 L 2.500E+01 -5.000E+01 Total energy balance on node is 0.00000 or 0.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 220 DIFF Forward Baffle 10.348 1.00 80.0 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 301 IVCS 29.141 2007 L 1.000E+01 1.879E+02 117 Hot MIC 4.517 3003 F 4.608E+01 -2.687E+02 261 Chopper Motor and Housing 2.191 -1002 R 7.723E-08 -8.837E-04 800 MCT (main cryo tank) 1.700 -1003 R 1.015E-08 -1.163E-04 800 MCT (main cryo tank) 1.700 -1004 R 3.334E-05 -3.820E-01 301 IVCS 29.141 -1008 R 1.603E-06 1.138E+00 Total energy balance on node is -5.65338E-03 or -0.002 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 260 DIFF Secondary Mirror 2.191 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 261 Chopper Motor and Housing 2.191 2005 L 1.500E-01 2.861E-07 Total energy balance on node is 2.86102E-07 or 100.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 261 DIFF Chopper Motor and Housing 2.191 1.00 30.0 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 260 Secondary Mirror 2.191 2005 L 1.500E-01 -2.861E-07 800 MCT (main cryo tank) 1.700 2006 L 1.500E+01 -7.368E+00 800 MCT (main cryo tank) 1.700 3001 F 4.608E+01 -2.263E+01 220 Forward Baffle 10.348 -1002 R 7.723E-08 8.837E-04 Total energy balance on node is -9.15527E-05 or 0.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 280 DIFF FGS 114.384 1.00 50.0 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 501 OVCS 110.335 2008 L 1.000E+01 -4.049E+01 800 MCT (main cryo tank) 1.700 4005 L 8.435E-02 -9.505E+00 Total energy balance on node is 6.94275E-04 or 0.001 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 301 DIFF IVCS 29.141 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 220 Forward Baffle 10.348 2007 L 1.000E+01 -1.879E+02 623 Strap, inner 36.459 2011 L 1.000E+02 7.317E+02 900 Outer Shell 200.000 2012 L 2.350E-01 4.015E+01 800 MCT (main cryo tank) 1.700 2013 L 2.670E-03 -7.327E-02 401 MVCS 56.641 2016 L 5.530E+00 1.521E+02 800 MCT (main cryo tank) 1.700 2017 L 4.180E-01 -1.147E+01 401 MVCS 56.641 2020 L 2.593E-01 7.131E+00 220 Forward Baffle 10.348 3004 F 4.608E+01 -8.660E+02 401 MVCS 56.641 -1007 R 1.647E-05 1.576E+02 220 Forward Baffle 10.348 -1008 R 1.603E-06 -1.138E+00 800 MCT (main cryo tank) 1.700 -1009 R 3.063E-05 -2.209E+01 Total energy balance on node is -3.50513E-02 or -0.003 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 401 DIFF MVCS 56.641 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 622 Strap, mid 59.634 2010 L 1.000E+02 2.994E+02 501 OVCS 110.335 2015 L 8.870E+00 4.763E+02 301 IVCS 29.141 2016 L 5.530E+00 -1.521E+02 501 OVCS 110.335 2019 L 2.013E-01 1.081E+01 301 IVCS 29.141 2020 L 2.593E-01 -7.131E+00 301 IVCS 29.141 3005 F 4.608E+01 -1.267E+03 501 OVCS 110.335 -1006 R 5.783E-06 7.975E+02 301 IVCS 29.141 -1007 R 1.647E-05 -1.576E+02 Total energy balance on node is -1.19934E-02 or -0.001 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 501 DIFF OVCS 110.335 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 280 FGS 114.384 2008 L 1.000E+01 4.049E+01 621 Strap, outer 104.686 2009 L 1.000E+02 -5.649E+02 900 Outer Shell 200.000 2014 L 2.480E+00 2.224E+02 401 MVCS 56.641 2015 L 8.870E+00 -4.763E+02 900 Outer Shell 200.000 2018 L 1.053E-01 9.443E+00 401 MVCS 56.641 2019 L 2.013E-01 -1.081E+01 401 MVCS 56.641 3006 F 4.608E+01 -2.474E+03 900 Outer Shell 200.000 -1001 R 2.109E-07 3.062E+02 900 Outer Shell 200.000 -1005 R 2.580E-06 3.745E+03 401 MVCS 56.641 -1006 R 5.783E-06 -7.975E+02 Total energy balance on node is -8.78906E-03 or 0.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 621 DIFF Strap, outer 104.686 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 501 OVCS 110.335 2009 L 1.000E+02 5.649E+02 1 Clevis 178.950 4001 L 7.086E+00 5.262E+02 622 Strap, mid 59.634 4002 L 2.422E+01 -1.091E+03 Total energy balance on node is -8.17871E-03 or -0.001 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 622 DIFF Strap, mid 59.634 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 401 MVCS 56.641 2010 L 1.000E+02 -2.994E+02 621 Strap, outer 104.686 4002 L 2.422E+01 1.091E+03 623 Strap, inner 36.459 4003 L 3.417E+01 -7.918E+02 Total energy balance on node is -1.89209E-03 or 0.000 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 623 DIFF Strap, inner 36.459 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 301 IVCS 29.141 2011 L 1.000E+02 -7.317E+02 622 Strap, mid 59.634 4003 L 3.417E+01 7.918E+02 800 MCT (main cryo tank) 1.700 4004 L 1.729E+00 -6.009E+01 Total energy balance on node is 1.76392E-02 or 0.002 % =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 800 BOUN MCT (main cryo tank) 1.700 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 118 Cold MIC 3.700 2001 L 2.500E+01 5.000E+01 117 Hot MIC 4.517 2003 L 1.500E+01 4.225E+01 117 Hot MIC 4.517 2004 L 2.070E-01 5.831E-01 261 Chopper Motor and Housing 2.191 2006 L 1.500E+01 7.368E+00 301 IVCS 29.141 2013 L 2.670E-03 7.327E-02 301 IVCS 29.141 2017 L 4.180E-01 1.147E+01 623 Strap, inner 36.459 4004 L 1.729E+00 6.009E+01 280 FGS 114.384 4005 L 8.435E-02 9.505E+00 220 Forward Baffle 10.348 -1003 R 1.015E-08 1.163E-04 220 Forward Baffle 10.348 -1004 R 3.334E-05 3.820E-01 301 IVCS 29.141 -1009 R 3.063E-05 2.209E+01 Total energy balance on boundary node is 203.81 =============================================================================== Node Type Description Temp MCp Qin ----- ---- ----------------------------- -------- ---------- ---------- 900 BOUN Outer Shell 200.000 1.00 0.000 ---- Connected To ---- Node Description Temp Cond T Value Qflow ----- ----------------------------- -------- ------ - --------- --------- 1 Clevis 178.950 2002 L 2.500E+01 -5.262E+02 301 IVCS 29.141 2012 L 2.350E-01 -4.015E+01 501 OVCS 110.335 2014 L 2.480E+00 -2.224E+02 501 OVCS 110.335 2018 L 1.053E-01 -9.443E+00 501 OVCS 110.335 -1001 R 2.109E-07 -3.062E+02 501 OVCS 110.335 -1005 R 2.580E-06 -3.745E+03 Total energy balance on boundary node is -4849.7 =============================================================================== +++ Energy Balance Summary +++ Largest Absolute Nodal Energy Balance Error is -3.50513E-02 On Node 301 Largest Percentage Nodal Energy Balance Error is 100. %On Node 260 Total Energy Entering System: 5209.7 Total Energy Leaving System: 5209.7 Net System Energy Balance Error is 0.53711E-01 or 0.103E-02 % <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< RUN DIAGNOSTICS >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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