Abstract
Currently, intensive work is underway in Poland to increase the share of renewable energy sources in the overall energy balance. Therefore, this paper presents the possibilities of using concentrated solar power in zones with a temperate climate. A simplified model based on the energy balance in the solar collectors considering the main operating parameters of the typical solar power plant was developed. It should be noted here that the model does not take into account issues related to heat accumulation and electricity generation in a Solar Thermal Power Station. The simulation of forced convection inside the solar collector absorber was additionally included in the calculations to improve its accuracy. The model was verified using actual heat measurements at the outlet of the parabolic collector installation at a Solar Thermal Power Station located in the south of Spain. The heat generated by a similar solar collector system in a selected region with a temperate climate, the city of Bialystok (north-eastern Poland, geographic coordinates: 53°08′07″ N 23°08′44″ E) was determined by the developed simplified model for different months of the year. Based on the results of the analysis, it was found that the energy obtained from the same area of concentrated solar collectors located near Bialystok is eight times lower compared to the location in Cordoba depending on the variant of the power plant operation.
Highlights
Accepted: 20 May 2021Solar energy is one of significantly developing branches of renewable energy sources.Total annual solar radiation on the surface of the Earth is estimated to be about 7500 times higher than the annual global consumption of primary energy [1]
PowerofStation in Spain parabolic solar collectors was performed by comparing the heat determined from the The validation of the presented simplified model for estimating heat production by Equation (1) with the heat measured in the parabolic solar collectors at a thermoelectric parabolic solar collectors was performed by comparing the heat determined from the Equasolar plant in the south of Spain (Solar Thermal Power Plant “La Africana”, Tables 1 and 2)
In the case of variant B (Figure 12b), the estimated amount of heat generated by production by parabolic solar collectors presented in this paper may be an alternative to the solar collectors in Bialystok is eight times lower than the amount of heat produced by most commonly used computer programs, such as System Advisor Model (SAM), in which simulations are performed solar collectors in the south of Spain (Table 4)
Summary
Solar energy is one of significantly developing branches of renewable energy sources. The most popular program System Advisor Model (SAM) [40] can be used for the initial analysis of the entire solar power plant, where three areas can be distinguished: solar collector installations, heat storage tanks and devices for generating thermal energy (solar field, thermal storage, power block). The validation of the developed model was performed by comparing its results with the heat generated by a set of parabolic solar collectors at a real thermal power plant in the south of Spain. The results of this type of simulations could be useful for preliminary analysis of the CSC systems applications.
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