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

DHOPT
IPRINT(1)
(1=1, NYEAR)
ITAPE
During heliostat optimization the density and aspect
ratio will be varied by no more than 1 f DHOPT from the
initial values. The larger DHOPT the wider the search
for the optimum and the poorer the numerical approximations
used in finding the optimum.
Constraint: 0 < DHOPT 5 0.20
Default: DHOPT = 0.2 (IV . B-2,IV .C-7)
Control parameter for zone by zone output of performance
calculation. The annual zone by zone performance is
always printed. The average performance of a user defined
field at all times is always printed. In addition, for the
Ith day of the NYEAR days (if IPROB=l or 2 the only day of
the year is 1=1), IPRINT(1)
= 0, no zone by zone output for this day;
= 1, daily average printed;
-= 2, each time step and daily average printed.
If IPROR-3 then IPRINT( I)
= 0, no zone by zone performance printed for the I
zenith angle, UEL(1);
= 2, zone by zone performance printed for every
combination of the I solar zenith angle,
UEL(I), and the NIJAZ values of the solar
azimuthal angle (UAZ(1). . .UAZ(NUAZ)).
Default: IPRINT = 9'0
Control parameter for reading and writing files
= 0, no reading or writing of files;
= 1, output of performance run written on local file
Unit 10 for use in subsequent design
calculations; this option eliminates need to
duplicate initial performance calculation for
different design runs when location and field
options (latitude, dimensions, heliostat
design, etc.) remain unchanged;
= 2, initial performance input for design run read
from local file Unit 20, which should be the file
created on Unit 10 in a previous performance run
with ITAPE=l; input Namelists FIELD, HSTAT, REC,
NLFLUX, and NLEFF in performance roup are
omitted with this option (see Table A-Z!.
The user must be sure that the latitude,
insolation model, sunshape, heliostat
design, and receiver/field configuration
read from Unit 20 are those desired in
the present run.
= 3, system input for performance calculation read
from local file Unit 30, which should be the
file created in a design/optimization
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