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

This option should be used with external
cylinder, elliptical flat plate and elliptical
aperture cavity receivers with flux limits
(Namelist NLFLUX);
= 2, same as 1 except that the images are spread
out in 2-d. This option should be used only
with rectangular flat plate or rectangular
aperture receivers with flux limits;
= 3, time dependent aiming strategy to reduce
radiation/convection losses, to reduce thermalmechanical
damage, or to minimize the size of
a heat absorbing surface inside a cavity. For
each zone the image is centered across the
“width” of the receiver or aperture and is
positioned as close to the bottom of the
receiver as possible without increasing
spillage significantly;
= 4, same as 3 except the images are spread out
along the width of the receiver. This option
should only be used with a rectangular flat
plate or rectangular aperture receiver;
= 5, user defined, time independent, uniform
aiming. For the (K,L) zone the aim points are
arranged in a rectangular grid that is in the
plane of the cavity aperture or flat plate or
is in the plane that is tangent to the external
receiver at the azimuthal angle of the zone
There are NAX(K,L) aim points along the
horizontal direction from a minimum value of
XAIM K,L,1 meters to a maximum value of
XAIM t l
K,L,2 meters. Similarly, there are
NAY(K,L) aim points along the “vertical”
direction from a minimum value of YAIM(K,L,l)
meters to a maximum value of YAIM(K,L,2)
meters. Note that this option should only be
used for performance runs.
< 0, combination of options 2 and 4. Inner heliostats
are aimed according to option 4. Heliostats
at a radial zone position 1-IAUTOP are aimed
according to option 2. This option is most
useful for cavity receivers.
Constraint: Maximum of 25 user defined aim points/
zone. Code will only automatically generate
up to 100 aim points.
IREC = 2 or 4 if IAUTOP = 2 or 4
IPROB # 4 (namelist BASIC) if IAUTOP = 5
Default: IAUTOP = 0
NUMPT(K,L) = NAX(K,L) = NAY(K,L) = 1
XAIM(K,L,M) = YAIM(K,L,M) = 0.0
(1I.F)II.G-2)
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