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

SamDle Problem 3a - ODtimization of a Single-ADerture Cavitv Receiver
Problem Statement
A preliminary 125 MWe cavity receiver design with some amount of storage
is to be generated for a north field. A preliminary power production estimate is
required. Flux should not exceed 0.6 MW/m2 on the cavity absorbing wall.
Input Cards
SAMPLE PROBLEM 3A
$BASIC IPROB=4. ITAPE=l $
$FIELO INORTH=I 3
$HSTAT $
$REC IREC=2 $
$NLFLUX $
SNLEFF $
$REC IREC=2. W=20.. IAUTOP=2 $
$OPT NUMTHT=4. THTST=200., THTEND=260.. NUMREC=5, WST=14., WENDz22..
IOPTUM=2. NUMHTW=7. HTWST-30.. HTWEND=45.0. RYTRX=I.O,
NUMOPT=I. POPTMN=125.E+06, POPTMX=125.E+06,
IPLFL=I. IRERUN=I. IOTAPE=I $
BNLFLUX IFLX=I. NXFLX=5. FAZMIN=135.. FAZMAX=225., NYFLX=4. FZMIN=-I.GR.
FZMAX=4.92. NFLXMX=4. NMXFLX=3.8.13.18. FLXLIM=4*0.6E+06 $
$NLEFF $
fNLCOST CREC1=4.735e+06, ARECRF=1749.0 $
$NLECON $
SAMPLE PROBLEM 3A RERUN
$BASIC IPROB=O, ITAPE=3. TDESP=125.0 $
$FIELD $
$HSTAT $
BREC $
SNLFLUX IFLX=I. IFXOUT(3.1)=1. FAZMIN=90.. FAZMAX=270.0 $
$NLEFF $
$REC W=-lOO. $
Analvsis of Input
This problem is similar in scope to Problem 2, except that this is for a north
field, storage optimization is not required, and only a preliminary receiver design
is required. This last requirement allows the user to skip the normal second part
of cavity design optimization, that of optimizing aperture height-to-width ratios.
Because no previous initial performance calculation has been done for a north
field, one is required for this problem. The north field is specified with the vari-
able INORTH=l in Namelist $FIELD$. The default system in the initial perfor-
mance is close enough to be used without change for this problem. The cavity re-
ceiver is specified by IREC=2, and the number of apertures defaults to one north
aperture. This is consistent with the north field specification.
The inputs for optimization are similar to those for Problem 2a. The tower
height range is extended, since north field designs will typically have taller tow-
ers. Also, IRERUN=l is specified along with IOTAPE=l, since the results of this
optimization will be used directly for a final performance run, without doing the
normal second step of cavity optimization.
The inputs for the final performance calculation are similar to those presented
for earlier sample problems. In this case, the width of the flux map was changed
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