Naslov
A Model for Optimal Sizing of Solar Thermal Hydroelectric Power Plant

Autori
Glasnović, Zvonimir ; Rogošić, Marko ; Margeta, Jure

Izvornik
Solar energy (0038-092X) 85 (2011), 5; 794-807

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
solar thermal power plant; hydroelectric power plant; renewable energy sources; sustainable energy production; optimal sizing

Sažetak
This paper presents the model for optimal sizing of a Solar Thermal (ST) power plant with parabolic collectors, which operates with Pump Storage Hydroelectric (PSH), all for the purpose of providing full energy independence of an isolated consumer. The sustainability of such system is based exclusively on solar energy input (without hybridization with any fossil fuel), as a renewable and pure energy resource, and the use of hydro energy, due to the possibility of its continuous production of energy. The feasibility and characteristics of the ST-PSH power plant were tested on power supply of the Island of Vis in Croatia, and the results show that the proposed model describes the operation of the power plant very well. For average solar irradiation of about 1500 kWh/m2/a, precipitation 644 mm/a, evaporation 1444 mm/a, volume of PSH upper reservoir of 20 hm3, electric energy consumption of 18 GVAh/a and reserve in the system for 3-4 months, the obtained power of the ST power plant is 22 MW, which can produce unit value of the annual thermal energy of 459 kWh/m2/a and electric energy of 160 kWh/m2/a, while the total collector aperture in the observed case is about 16 ha. These results show that ST-PSH plants can be successfully applied on locations with relatively low irradiation, wherein the key element that ensures continuous production of energy is precisely the PSH technology that can in the best way, in economic-technical, and especially in ecological sense, balance the relatively large summer surpluses and winter energy shortages.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Građevinarstvo, Kemijsko inženjerstvo

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