A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
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This option should be used with external<br />
cylinder, elliptical flat plate and elliptical<br />
aperture cavity receivers with flux limits<br />
(Namelist NLFLUX);<br />
= 2, same as 1 except that the images are spread<br />
out in 2-d. This option should be used only<br />
with rectangular flat plate or rectangular<br />
aperture receivers with flux limits;<br />
= 3, time dependent aiming strategy to reduce<br />
radiation/convection losses, to reduce thermalmechanical<br />
damage, or to minimize the size of<br />
a heat absorbing surface inside a cavity. For<br />
each zone the image is centered across the<br />
“width” of the receiver or aperture and is<br />
positioned as close to the bottom of the<br />
receiver as possible without increasing<br />
spillage significantly;<br />
= 4, same as 3 except the images are spread out<br />
along the width of the receiver. This option<br />
should only be used with a rectangular flat<br />
plate or rectangular aperture receiver;<br />
= 5, user defined, time independent, uni<strong>for</strong>m<br />
aiming. For the (K,L) zone the aim points are<br />
arranged in a rectangular grid that is in the<br />
plane of the cavity aperture or flat plate or<br />
is in the plane that is tangent to the external<br />
receiver at the azimuthal angle of the zone<br />
There are NAX(K,L) aim points along the<br />
horizontal direction from a minimum value of<br />
XAIM K,L,1 meters to a maximum value of<br />
XAIM t l<br />
K,L,2 meters. Similarly, there are<br />
NAY(K,L) aim points along the “vertical”<br />
direction from a minimum value of YAIM(K,L,l)<br />
meters to a maximum value of YAIM(K,L,2)<br />
meters. Note that this option should only be<br />
used <strong>for</strong> per<strong>for</strong>mance runs.<br />
< 0, combination of options 2 and 4. Inner heliostats<br />
are aimed according to option 4. Heliostats<br />
at a radial zone position 1-IAUTOP are aimed<br />
according to option 2. This option is most<br />
useful <strong>for</strong> cavity receivers.<br />
Constraint: Maximum of 25 user defined aim points/<br />
zone. Code will only automatically generate<br />
up to 100 aim points.<br />
IREC = 2 or 4 if IAUTOP = 2 or 4<br />
IPROB # 4 (namelist BASIC) if IAUTOP = 5<br />
Default: IAUTOP = 0<br />
NUMPT(K,L) = NAX(K,L) = NAY(K,L) = 1<br />
XAIM(K,L,M) = YAIM(K,L,M) = 0.0<br />
(1I.F)II.G-2)<br />
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