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Figure 11-5. North-only Field (INORTH=l). Field Points (x’s) and Field Zone Boundaries (Solid Lines) for NRAD=6, NAZM=6, AMAXN=75. In actual problems, a larger NAZM and NRAD would probably be used. 32
NAZM = 12 AMAXN = 82.5" 11.23-2 Field Options-The number of heliostat zones is based on the specifi- cations of NRAD and NAZM. For design and optimization runs, a circular field of zones is required, although the field can be a surround (INORTH=O) or north (INORTII-1) field. In this case, NRAD remains constant around the circumfer- ence. For a performance run, it is possible to define a non-circular zonal configuration by specifying IUSERF=l. Although a heliostat field must be contained within the heliostat zone configuration chosen, the field does not have to occupy every zone. The variable IUSERF (namelist FIELD) in general is used to determine the relationship between the heliostat zone pattern and the actual heliostat field layout that determines field performance, as follows: a) IUSERF=O The user specifies RADMIN, RADMAX, NRAD, NAZM, and INORTH. No field boundaries are provided with this option, so the field boundaries are assumed to be the zone configuration boundaries. The code calculates and reports only the zone by zone performance for the symmetric grid defined by the five in- put variables above. Average field performance is meaningless in this case and therefore is not calculated. This option must be used for any initial performance run which will be used later for a field buildup (optimization) run. The best guess receiver and tower dimensions should be specified in conjunction with using this option. 6) IUSERF=I The code defined north biased surround field of Figure 11-6 is used. User spec- ifications of the field variables RADMIN, RADMAX, NRAD, NAZM, INORTH, NRADMN, and NRADMX are ignored. That is, the zonal configuration cannot be changed from that of Figure 11-6. The layout is typical of fields required for larger industrial or electrical power plants (greater than about 250 MWth or 100 M We, from Reference 9). Field averaged performance is calculated and reported. This option can only be used for an independent performance run in which the field is defined by the user with the variables DENSIT, AZMSEP, and FLAND. This option should not be used during a performance rerun of a system which has been previously optimized by DELSOL. The best guess receiver and tower dimensions should be specified in conjunction with using this option. c) IUSER F=Z This option allows the user to define a field zone by zone. The field definition can be specified directly by the user in a performance calculation or can be ob- tained from the results of a DELSOL optimization during a performance rerun. 33
Page 1 and 2: - SANDIA REPORT SAND86-8018 Unlimit
Page 3: SAND 86-8018 Unlimited Release Prin
Page 6 and 7: ' The computer code which this repo
Page 9 and 10: I. Introduction CONTENTS A. Differe
Page 11 and 12: 1. More Accurate Images from Canted
Page 13: VII. Comparison of DELSOL, MIRVAL,
Page 16 and 17: 111-1 Insolation Models 111-2 Atmos
Page 19 and 20: A USER’S MANUAL FOR DELSOLS: A CO
Page 21 and 22: owing, blocking, atmospheric attenu
Page 23: The fourth major enhancement in DEL
Page 26 and 27: W- 26 S ? Jr RECEIVER NORMAL COORDI
Page 28 and 29: ZONE FlEL 180" Figure 11-3. Surroun
Page 30 and 31: 30 ZONE 60 Figure 11-4. Method of Z
Page 34 and 35: 34 N' Figure 11-6. Code Defined Fie
Page 36 and 37: 36 Figure 11-7. Schematic Diagram o
Page 38 and 39: -SLEW (1)- Figure 11-8. Example of
Page 40 and 41: Figure 11-9. Radial Stagger Arrange
Page 42 and 43: Note that when IDENS=l or 2 the azi
Page 44 and 45: J1.D. Heliostats Either rectangular
Page 46 and 47: Given that heliostats will be mass
Page 48 and 49: (A) FLAT REFLECTED RAY FROM (B) FOC
Page 50 and 51: IROUND = 0 WM = 9.91 (m) HM = 9.93
Page 52 and 53: That is, the aperture is always loc
Page 54 and 55: controlled by the IAUTOP parameter
Page 56 and 57: only be used with rectangular cavit
Page 58 and 59: grid of points on the DELSOL assume
Page 60 and 61: W E Figure 11-17. Flux Points on a
Page 62 and 63: flux point grid defined during syst
Page 64 and 65: To see whether this problem is occu
Page 66 and 67: Cal cul ati onal Day 1 2 3 4 5 Tabl
Page 68 and 69: 1II.B-I. Position 01 the Sun-The su
Page 70 and 71: where SO is given by Equation (1II.
Page 72 and 73: c 0 w V c LL .r a 0 0 0 0 0 s /s 0
Page 74 and 75: 1II.C. Field Performance Calculatio
Page 76 and 77: 1II.F. Flux Density and SDillane Th
Page 78 and 79: III. G-1. Atmospheric Attenuation:
Page 80 and 81: eceiver) or with aperture area (cav
Page 82 and 83:
In other words, PLOST,R is the same
Page 84 and 85:
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
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power and annual energy. Section 11
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, . IV.A-7. Calculation of Annual E
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. production. When each design powe
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large enough fraction of total capi
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_____ Table IV-2. Design Parameters
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DELSOL will examine NUMHTW (520) eq
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The final step of cavity receiver o
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. furthermore, that the assumed tur
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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.
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I V. System Costs and Economics Whi
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for meteorological equipment. The d
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0 co I I I 0 co J 0 c\! c, 0 3 Ln 0
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w/2 x RWCAV W/2 x RWCAV IN (180. -
Page 127 and 128:
S M ~ , = ~ solar F multiple for re
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nSTOR is determined from an assumed
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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
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VI. Program Flow DELSOL can be used
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.I c to reach a certain design powe
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an optimum storage size based on en
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I Read i n N + K t x ] ITAPE=O or 1
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Read in System Definition from File
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. TABLE VI-2 OUTPIJT FROM OPTIMIZAT
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) Power level specific for detailed
Page 153 and 154:
V1.B. DescriDtion of Subroutines in
Page 155 and 156:
C cy c: C C
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L C c C c C c: C c C C c C C C c: c
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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., “
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since the values have been already
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Title Card $BASIC$ $FIELD$ $HSTAT$
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IPROB NYEAR HRDEL UDAY UTIME NUAZ N
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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
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182 1 1-40 2 1-10 11-20 3 1-10 11-2
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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
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NXFLX FAZMIN FAZMAX 190 AZMF (North
Page 192 and 193:
NMXFLXY) identifies the exact point
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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
Page 214 and 215:
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
Page 225 and 226:
Receiver System Efficiency: The rat
Page 227 and 228:
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
Page 235 and 236:
Analysis Review and Critique 6503 8
Page 237 and 238:
Martin Marietta Aerospace P.O. Box
Page 239:
Stone and Webster Engineering Corpo
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