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5. Thermodynamic and Economic Study       399




                  Table 12.7 Required Area for Parabolic Trough Collector Installation, in
                  Function of Solar Radiation, for a 3 MWe Organic Rankine Cycle-Solar System
                        2
                                             2
                   I (W/m )              A a (m )              Land Area (Ha)
                   150                   395,198                119
                   200                   296,398                 89
                   250                   237,119                 71
                   300                   197,599                 59
                   350                   169,371                 51
                   400                   148,199                 44
                   450                   131,733                 40
                   500                   118,559                 36
                   550                   107,781                 32
                   600                   98,799                  30
                   650                   91,200                  27
                   700                   84,685                  25
                   750                   79,040                  24
                   800                   74,100                  22
                   850                   69,741                  21
                   900                   65,866                  20
                   950                   62,400                  19
                   1000                  59,280                  18




                  Table 12.8 Costs Utilized Within Software Solar Advisor Model (SAM) for
                  the Reference Parabolic Trough Collector System
                                         Value Utilized in SAM
                   Direct Cost           2010                  Unit
                   Local improvements    25                    USD/m 2
                                               a
                   Solar field            295 (270 )            USD/m 2
                   SHTF system           90                    USD/m 2
                   Storage               80                    USD/kWh-t a
                   a                                                              2
                    In the 2014-01-14 version of the SAM software the cost of the solar field was changed to 270 $/m .
                   From C. Turchi, Parabolic Trough Reference Plant for Cost Modeling With the Solar Advisor Model
                   (SAM), 2010.

                     From Fig. 12.15 it can be seen that the costs per kW vary between 13,053 and
                  56,162 USD/kW. As all calculations were carried out in function of solar radiation,
                  the importance of this parameter at the time of designing solar-based generation sys-
                  tems is highlighted, as well as its impact on the overall costs of the systems.
                     The costs presented in USD/kW are specific for the power cycle studied herein
                  (3 MWe), and results could vary if a different cycle is simulated.
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