Solar Field Thermo-economical optimization of Yazd Integrated Solar Combined Cycle (ISCC)

Solar field transfer heat of solar radiation to the heat transfer fluid. Appropriate size of solar field is one of the most important parameters in levelized cost of solar electricity. In this paper optimum solar field size in an integrated solar combined cycle is determined. Furthermore, an algorithm is presented for the simulation of parabolic trough solar collector performance. Four solar fields by different size but same power block are considered. Thermal performance of each field in terms of nominal and partial load conditions is studied. Solar field and combined cycle are simulated by coding in EES software. According to The hourly meteorological data, electricity generated for a year is calculated. Levelized cost of solar electricity for each field size is calculated and optimum size of the field is selected. According to the economic analysis, the optimum solar field size in an integrated solar combined cycle is depended to location of plant, HRSG power demand, and the constraints of the power block and solar field.