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directly to the optimization calculations. The next Namelist read after the BA- SIC Namelist in this case is the REC Namelist that begins the optimization group of Namelists. V1.A-5. Optimized System File (Unit $0)-This file is an unformatted file, written during optimization and read during a final performance run, which con- tains the description of an optimized design. The user must specify IOTAPE=l (Namelist OPT) to request that this file be written, and this file must be written if the user plans to do a final performance calculation on the optimized system. Once the Unit 30 file is written, the code can either go directly into a final performance calculation if IRERUN=l is specified (Namelist OPT) or execution can be terminated before doing a performance calculation if IRERUN=O. This latter option allows the user to save the optimized design file for either a later performance calculation, multiple flux map calculations, or as input to a user provided plotting program. The options for saving and rerunning optimized systems are illustrated in Fig- ures VI-1 and VI-2. As seen in the lower part of Figure VI-1, when DELSOL has finished optimizing a system the optimum design(s) are written to the Unit 30 file. The user should take appropriate action to save the Unit 30 file. To read the optimized system for a performance calculation, the user attaches a copy of the Unit 30 file to the program and specifies ITAPE=3 on Namelist BASIC. Re- member that if IRERUN=l (Namelist OPT) DELSOL does not stop after system optimization is complete, but immediately starts a new performance calculation using the optimized system. The information stored on the Unit 30 file describing the optimum system becomes the default values for a final performance calculation when that file is read by specifying ITAPE=3. Specifically, the following are stored on the Unit file: site (latitude, weather, insolation, etc.) field (number and type of zones, heliostat layout) heliostat (dimensions , reflectivity, canting, focusing) receiver (type and dimensions) tower height flux points (only if flux was calculated during optimization) The user, therefore, does not have to define these variables. Generally, when rerunning a system in a performance calculation the only variables that the user redefines are: (1) type of problem (e.g., single time, single day, annual performance); (2) flux calculation if different from optimization (more flux points or different flux surfaces may be examined); or (3) heliostat aim strategies or the 146 30
Read in System Definition from File TAPE30 Created in Previous Run. Generally Use Default Values on FIELD, HSTAT, REC, NLFLUX, NLEFF -- --- - --- I Detailed Summary of Performance of User-Defined Field I_ _] -I---- ----- -1 Figure VI-2. Options on Performance Calculations --- -- --- -- - -- -
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- SANDIA REPORT SAND86-8018 Unlimit
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SAND 86-8018 Unlimited Release Prin
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' The computer code which this repo
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I. Introduction CONTENTS A. Differe
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1. More Accurate Images from Canted
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VII. Comparison of DELSOL, MIRVAL,
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111-1 Insolation Models 111-2 Atmos
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A USER’S MANUAL FOR DELSOLS: A CO
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owing, blocking, atmospheric attenu
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The fourth major enhancement in DEL
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W- 26 S ? Jr RECEIVER NORMAL COORDI
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ZONE FlEL 180" Figure 11-3. Surroun
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30 ZONE 60 Figure 11-4. Method of Z
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Figure 11-5. North-only Field (INOR
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34 N' Figure 11-6. Code Defined Fie
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36 Figure 11-7. Schematic Diagram o
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-SLEW (1)- Figure 11-8. Example of
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Figure 11-9. Radial Stagger Arrange
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Note that when IDENS=l or 2 the azi
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J1.D. Heliostats Either rectangular
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Given that heliostats will be mass
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(A) FLAT REFLECTED RAY FROM (B) FOC
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IROUND = 0 WM = 9.91 (m) HM = 9.93
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That is, the aperture is always loc
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controlled by the IAUTOP parameter
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only be used with rectangular cavit
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grid of points on the DELSOL assume
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W E Figure 11-17. Flux Points on a
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flux point grid defined during syst
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To see whether this problem is occu
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Cal cul ati onal Day 1 2 3 4 5 Tabl
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1II.B-I. Position 01 the Sun-The su
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where SO is given by Equation (1II.
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c 0 w V c LL .r a 0 0 0 0 0 s /s 0
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1II.C. Field Performance Calculatio
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1II.F. Flux Density and SDillane Th
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III. G-1. Atmospheric Attenuation:
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eceiver) or with aperture area (cav
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In other words, PLOST,R is the same
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Following the approach in the previ
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86 - - - LLLLLL www CLee o m 4 I i
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This approximate method of calculat
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RECEIVER STARTUP WEATHER SUN PARASI
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111.1. Relationship Between Perform
Page 95 and 96: IV. System Optimization Calculation
Page 97 and 98: power and annual energy. Section 11
Page 99 and 100: , . IV.A-7. Calculation of Annual E
Page 101 and 102: . production. When each design powe
Page 103 and 104: large enough fraction of total capi
Page 105 and 106: _____ Table IV-2. Design Parameters
Page 107 and 108: DELSOL will examine NUMHTW (520) eq
Page 109 and 110: The final step of cavity receiver o
Page 111 and 112: . furthermore, that the assumed tur
Page 113 and 114: point in the NMXFLX(1) array (I=l,
Page 115 and 116: , flux level. DELSOL determines the
Page 117 and 118: optimum for any power level is 13.
Page 119 and 120: I V. System Costs and Economics Whi
Page 121 and 122: for meteorological equipment. The d
Page 123 and 124: 0 co I I I 0 co J 0 c\! c, 0 3 Ln 0
Page 125 and 126: w/2 x RWCAV W/2 x RWCAV IN (180. -
Page 127 and 128: S M ~ , = ~ solar F multiple for re
Page 129 and 130: nSTOR is determined from an assumed
Page 131 and 132: CTK,REF (CSTREF) = $9.70 x loG VTK,
Page 133 and 134: XHE,A = scaling exponent. ni is cal
Page 135 and 136: . CCFIXED = 2.OE6 +'0.14 x DCC + 0.
Page 137 and 138: (V.B - 6) The discount rate rDIS is
Page 139 and 140: VI. Program Flow DELSOL can be used
Page 141 and 142: .I c to reach a certain design powe
Page 143 and 144: an optimum storage size based on en
Page 145: I Read i n N + K t x ] ITAPE=O or 1
Page 149 and 150: . TABLE VI-2 OUTPIJT FROM OPTIMIZAT
Page 151 and 152: ) Power level specific for detailed
Page 153 and 154: V1.B. DescriDtion of Subroutines in
Page 155 and 156: C cy c: C C
Page 157 and 158: L C c C c C c: C c C C c C C C c: c
Page 159: C C C C C C C C C C C C C C C C C C
Page 162 and 163: At the time of the comparisons MIRV
Page 164 and 165: 164 n m W * ? 0 F F 0 ( z W /M W) X
Page 166 and 167: 166 Phase 1; CDRL Item 2, Pilot Pla
Page 168 and 169: 168 43. Vittitoe, C. N. et al., “
Page 170 and 171: since the values have been already
Page 172 and 173: Title Card $BASIC$ $FIELD$ $HSTAT$
Page 174 and 175: IPROB NYEAR HRDEL UDAY UTIME NUAZ N
Page 176 and 177: TDESP PLAT ALT INSOL SOLCON IWEATH
Page 178 and 179: REFTIM REFSOL ASTART IATM ATMl ATM2
Page 180 and 181: IHPR NLAND XTOWER YTOWER (I= 1 ,NLA
Page 182 and 183: 182 1 1-40 2 1-10 11-20 3 1-10 11-2
Page 184 and 185: SIGTX SIGTY ICANT NCANTX NCANTY HCA
Page 186 and 187: THT TOWL TOWD IREC W H RRECL IAUTOP
Page 188 and 189: For cavities or flat plates, the fo
Page 190 and 191: NXFLX FAZMIN FAZMAX 190 AZMF (North
Page 192 and 193: NMXFLXY) identifies the exact point
Page 194 and 195: REFPRL FSP FEP EFFSTR PF SMULT IP H
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IHOPT NUMTHT THTST THTEND NUMREC WS
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SMULT IPLFL(1) (I=l ,NUMOPT) IPROPT
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CH CL CWR CWDR CWDA ITHT CTOWl CTOW
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ICHE CHEREF PHEREF XHEP APHREF PPHR
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CKNREF PKNREF XKN 204 Sodium-to-sal
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TC TR FDEBT RDEBT ROE IDEP NDEP NYO
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The next set of cards is read at th
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value of insolation from the specif
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For optimizing cavity depth, the IO
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For the final detailed performance
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from that specified during the opti
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Sample Problem 4 - User Defined Fie
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GLOSSARY Absorber: The portion of t
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Heat Exchanger: A component in whic
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Receiver System Efficiency: The rat
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Variable AEVMAX AEVREF AFDC ALP(I)
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Variable H H20 HCANT HM HPANL HRDEL
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Variable PARL7,PARLI) PARL9,PARLlO
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Variable W WEATH WEND WM WPANL WST
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Analysis Review and Critique 6503 8
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Martin Marietta Aerospace P.O. Box
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Stone and Webster Engineering Corpo
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