A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...

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) pa-
rameters 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.
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