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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V.A-10. Heat Exchangers Related to Generating EZectricitvThere are two op-<br />
tions <strong>for</strong> calculating heat exchanger component costs, the first of which scales the<br />
cost of a reference system based on thermal power into the heat exchangers (out<br />
of storage), and the second of which scales the cost of a reference system based on<br />
individual heat exchanger areas.<br />
132<br />
a) ICHE = 0 (default)-cost scales with thermal power into the heat exchang-<br />
ers based on a reference system:<br />
~CHTXCHC, = CHE,REF<br />
Pth,HE,REF<br />
where CHE,REF = reference heat exchanger subsystem cost ($)<br />
Pth = actual thermal power into the heat exchangers<br />
Pth,HE,REF = reference design thermal power into the heat<br />
exchangers (out of storage) (watts)<br />
XHE,~ = scaling exponent<br />
(V.A - 19)<br />
Default values are based on proposed molten salt designs, and the total<br />
subsystem cost includes an evaporator, superheater, and reheater:<br />
CHE,~F (CHEREF) = $15.2 x loG<br />
XHE,~ (XHEP) = 0.8<br />
b) ICHE # 0-cost scales with individual heat exchanger areas based on a<br />
reference system:<br />
(V.A - 20)<br />
where subscripts PH, EV, SH, and RH refer to the preheater, evaporator,<br />
superheater, and reheater, respectively, and:<br />
ni = number of type i heat exchangers<br />
Ci,REF = reference cost of single type i heat exchanger ($)<br />
Ai = area of heat exchanger i (me)<br />
Ai,REF = area of reference type i heat exchanger (m2)