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

IHPR
NLAND
XTOWER
YTOWER
(I= 1 ,NLAND)
180
= 0, circular field defined by NAZM, NRAD, RADMIN,
RADMAX; only zone by zone performance reported;
= 1, code defined north biased field of Figure 11-6;
= 2, user defined field specified zone by zone see below);
= 3, user defined field specified by individual 6 eliostat
coordinates (see below).
Constraint: IUSERF = 0 for optimization run
Default: IUSERF = 0 for ITAPE = 1
IUSERF = 2 for ITAPE = 3
(1I.B-2,VI)
u
Parameter controlling the printout of the coordinates of the
individual heliostats for the IUSERF=3 option.
= 0, no coordinates printed
= 1, coordinates printed
Default: IHPR=O
Parameter specifying land constrained field parameters
NLAND = 0 No land constraint.
# 0 Land available for heliostat field constrained
to NLAND rectangles defined by ALP, CLE, CLN,
SLEW, SLNS, XTOWER, YTOWER.
Constraint: NLAND 5 5
Default: NLAND = 0 (1I.B-4,1V.C-4)
Variables definin land constraints for field layout:
ALP(1) = angle fo) of rotation of Ith rectangle from N-S
and E-W axes (> 0 clockwise viewed from above);
CLE(I),CLN(I) = displacements (m) east and north,
respectively, of center of Ith rectangle
relative to the 1st;
SLEW(I),SLNS I) = length (m) of sides of Ith rectangle
le1 to E-W and N-S axes, respectively,
prior to rotation;
XTOWER,YTOWER = tower coordinates (m) east and north,
respectively, from the center of first land
constraint rectangle.
Constraint: NLAND > 0
Default: ALP = 5'0.0
CLE,CLN = 5'0.0
SLEW,SLNS = 5'0.0
XTOWER,YTOWER = 0.0 (1I.B-4)
Fraction of the area of the (K,L) zone that can be used
for heliostats. If a land constraint is specified
(preceding variables) then DELSOL will calculate FLAND.
FLAND can also be used to adjust the field trim or to
simulate partial cloud cover.
Default: FLAND = 156*1.0 * ( 11. B-2 ,II. B-4)