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

CTK,REF (CSTREF) = $9.70 x loG
VTK,REF (VSTREF) = 3740 m3
XST (XST) = 0.6 (Reference 31)
VTK,MAX (VMAX) = 1.23 x lo4 m3
ESTOR,REF (ESTREF) =- 6.88 x lo8 watt-hrs
V.A-9. Heat Exchanger Between the Receiver Fluid and the Storage Fluid-For
current technology systems it may be desirable to have different types of fluids for
the receiver and for storage, since fluids which store energy well (e.g., molten ni-
trate salt) may not absorb energy in a receiver as well as other fluids (e.g., liquid
sodium). In this case, a separate heat exchanger is required as an interface be-
tween the two fluids. The cost of that heat exchanger scales with thermal power
at the base of the tower:
~CHTXSTOR = CKN,REF
Pth,KN,REF
where CKN,REF = Cost of receiver fluid-to-storage fluid heat exchanger
for the reference thermal power ($)
Pth = Actual thermal power at the base of the tower
= Reference thermal power at the base of the tower
(V.A - 18)
P~~,,KN,REF
for the receiver fluid-to-storage fluid heat exchanger (watts)
XKN,~ = Scaling exponent
The cost of this heat exchanger is only included if the variable ICKN = 1
(Namelist NLCOST). The default values are based on the cost of sodium steam
generator heat exchangers:
ICKN = 0
CKN,REF (CKNREF) = $9.0 x loG
XKN,~ (XKN) = 0.8
131