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 ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
IROUND = 0<br />
WM = 9.91 (m)<br />
HM = 9.93 (m)<br />
DENSMR = 0.970<br />
RMIRL = 0.91<br />
SIGAZ = O.O*<br />
SIGEL = 0.00075<br />
SIGSX = 0.0010<br />
SIGSY = SIGTX = SIGTY = O.O*<br />
1I.E. Tower and Receiver<br />
ICANT = 1<br />
NCANTX = 2<br />
NCANTY = 8<br />
RCANT = 12*6.00<br />
XFOCUS = YFOCUS = 1.0<br />
IFOCUS = I<br />
XFOCAL = YFOCAL = 12*6.00<br />
*See note on page 47.<br />
DELSOL considers three types of receivers as illustrated in Figure 11-13: ex-<br />
ternal cylinders, multiple aperture cavities, and multiple flat plates. Flat plate<br />
receivers are specified in the same manner as cavity receivers. The optical tower<br />
height, THT, is defined as the elevation of the middle of the external receiver,<br />
cavity aperture, or flat plate above the Divot point of the heliostat. To get the<br />
height above ground, the elevation above ground of the pivot point must be<br />
added to THT. The optical tower height is used in all DELSOL calculations ex-<br />
cept the tower capital cost calculation, which uses the height from the ground to<br />
the bottom of a transition region between the tower and the receiver. Compo-<br />
nent costing, including a description of the transition region, is discussed in Sec-<br />
tion V.A-4. All references in DELSOL outputs to tower height refer to the optical<br />
tower height, THT.<br />
The size of external cylindrical receivers (IREC=O) is specified by the height,<br />
H, and width or diameter, W. The apertures on cavity receivers are specified by<br />
giving their dimensions, orientation, and displacement from the tower centerline.<br />
For rectangular apertures (IREC=Z), the horizontal edge has a length RX and<br />
the perpendicular edge has a length RY. For elliptical apertures (IREC=l), one<br />
axis is horizontal with length RX and the other axis has a length RY. The orien-<br />
tation of the apertures is specified by the r^ vector which is the outward surface<br />
normal at the center of a surface stretched across the-aperture. It is assumed that<br />
all apertures are oriented so that an extension of the f vectors will go through the<br />
tower centerline at the same point. (See Figure 11-2.) 8, (RELV) is the polar an-<br />
gle off; it equals 90" if the cavity aperture is vertical and is greater than 90" if<br />
the cavity faces downward. pr (RAZM) is the azimuthal angle; pr = 180" if the<br />
aperture faces North. The width W of the cavity structure is taken as twice the<br />
horizontal distance from the center of the cavity aperture to the tower centerline.<br />
50<br />
I