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

IFLX
IFXOUT(1,J)
(I= 1 ,NY EAR;
J=l, 16)
IFLAUT
XFC
Y FC
ZFC
POLF
AZMF
DIAMF
Namelist NLFLUX
Parameter specifying flux calculation. For performance
runs flux calculations are made at the one time of the
year specified by IFXOUT. For optimization runs, flux
calculations are made only at the design point.
= 0, no flux calculations;
= 1, flux calculations desired.
Constraint: IFLX = 1 if any IFXOUT # 0
Default: IFLX = 0 (II.G,II.F-2)
Parameter allowing selection of the one time of the year
at which the flux is calculated. For the Jth time step
(i.e., (J-1)’HRDEL hours past noon) on the Ith day (I=l at
winter solstice, = (NYEAR + 1)/2 at e uinox, = NYEAR at
summer solstice, as shown in Table 111-4, IFXOUT:
= 0, no flux calculated at this time;
= 1, total flux from user defined field (i.e.,
IUSERF = 1 or 2 in FIELD namelist) calculated
and reported for this time;
= -1, flux from every zone printed plus total flux
if IUSERF = 2 at this single time.
Constraint: One IFXOUT # 0 for flux maps in
performance runs, including reruns.
All IFXOUT = 0 if IFLX = 0.
Default: IFXOUT = 144’0 (1I.G)
Parameter specifying the type of surface on which a grid
of flux points will be automatically generated. In all
cases the “center” of the receiver is on the tower
centerline THT meters (Namelist REC) above the plane of
the heliostat pivots (XFC=YFC=ZFC=O). If IFLAUT:
= 1, points are on the outside surface of a cylinder
with a vertical axis. The cylinder has a diameter
of DIAMF meters and is offset by XFC meters to the
east, YFC meters to the north and ZFC meters up
from the “receiver center”. This option with
DIAMF=W (Namelist REC) and XFC=YFC=ZFC=O
generates the flux points on the surface of an external
receiver.
= 2, same as = 1 except the points are on the inside
surface of a hollow vertical cylinder (Figure 11-16).
If RWCAVfl.0, DIAMF must be set by the user to be
W x RWCAV (default is DIAMF=W).
= 3, points are on a plane. The center of the origin
that is used to define the grid of flux points is
XFC meters to the east, YFC meters to the north and
ZFC meters up from the “receiver center”. The
outward surface normal of the plane on the side
that the flux is incident on has an azimuthal angle of