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option for more accurate heliostat images (INDC=l, Namelist HSTAT) may be varied. This last may significantly affect the results obtained for small systems. The user must select the design point power level(s) which will be saved on a Unit 30 file or rerun during a final performance calculation. Although DEL- SOL can simultaneously optimize up to 20 design point power levels, the code only writes (to a Unit 30 file) a detailed field description for a maximum of five of these power levels. The user selects these power levels via the IPLFL(1) parameters in Namelist OPT. When using IOTAPE=l, all non-zero IPLFL(1) power levels are written on Unit 30 to be stored for future use. When reading the Unit 30 file in a final performance run, the user specifies which single power level from the file is to be used in the performance calculations (TDESP, Namelist BASIC). The order of information on the Unit 30 file is given in Table VI-2. VI.A-6. Performance File at Specified Sun Angles (Unit 9l)-This file is a formatted file to which the field performance information is written for the user specified sun angles using the option IPROB=3. The same information is printed in the output file (Unit 6). This information, when the default sun angles are used, is the information needed for use in the STEAEC or SOLERGY codes, although the information cannot be read directly from the Unit 31 file by these codes. VI.A-7. Flux Map File (Unit ll)-This file is a formatted file containing only flux maps generated during performance calculations. This is the same flux map information which is printed in the output file (Unit 6). The information on this file can be used to generate graphic contour profiles of the flux on a receiver. The user must remember that the flux map may not completely cover the surface of a receiver, or may not even be on the receiver heat absorbing surface. However, the information can still be plotted to give qualitative information quickly as to peak flux locations and flux uniformity. 148
. TABLE VI-2 OUTPIJT FROM OPTIMIZATION R'IJN STORED ON 'IJNIT 30 Variable a) Coniinon to all power levels WM,HM IROUND ICANT NOANTX,NCANTY ROUND ASTAT AMIRRO NRAD NAZM RMIRL DENSMR XFOCIJS Y FOC US SIGAZ,SIGEL SIGSX,SICSY SIGTX,SIGTY HEAD I FOC:U s XFOCAL YFOCAL HCANT DCANT RADMIN,RADMAX ROANT RANGE ILAY INDO IROTFL REFSOL AT M 1, ATM2, ATM3, ATM4, I AT M INORTH, AMAXN PLAT ALT REFDAY ,REFTIM NSUNPT,SUNR,SUNI,NSUN IC PAN L, W PA N L , H PA N L, HXC A NT, H Y C: A NT NU M C AV , I R EC , R ELV , R A Z M Namelist or Definition HSTAT n n n Surface area of heliostat including gaps (=WM*HM) Total mirror area in field FIELD n HSTAT n n n 71 n n Hollerith heading (title) of job HSTAT n n n n FIELD HSTAT Slant range FIELD n FIELD BASIC n FIELD BASIC n n n HSTAT REC 149
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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
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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 and 146: I Read i n N + K t x ] ITAPE=O or 1
Page 147: Read in System Definition from File
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
Page 196 and 197: 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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