NUMERICAL CALCULATION OF PARABOLIC AND PARABOLIC THROUGH CONCENTRATOR PARAMETERS FOR THE SOLAR POWER SYSTEM BASED ON STIRLING ENGINE

• Date: 2019
• Author Affiliations: V. Stoudenets — Institute of Energy Saving and Energy Management, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”; K. Slavinska — Institute of Energy Saving and Energy Management, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
• Keywords: keywords
• Main Authors: Stoudenets, V., Slavinska, K.
• Format: Article
• Language: Ukrainian
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2019
• Subjects: parabolic concentrator; parabolic cylindrical concentrator; Stirling engine; renewable energy sources.
• Online Access: https://ve.org.ua/index.php/journal/article/view/189
• Journal Title: Vidnovluvana energetika

Concentrators of solar energy are gaining increasing importance in connection with the need to address important scientific and engineering tasks in the creation of the new technology and the use of solar energy. The main characteristics of the mirrors, which concentrate direct solar radiation, are irradiation in the focal plane  and maximal irradiation in the focus of the mirror . When designing powerful solar installations there is a need for the use of new software to calculate the technical characteristics of solar concentrators. The issue of creating universal software for calculating the basic energy characteristics of parabolic and parabolic cylindrical solar energy concentrators in the Windows environment is considered. The generalized mathematical model provides implementation of the stages of calculation and designs taking into account the energy characteristics of the source of radiation, the inaccuracy of reflecting surfaces, and so on. The analysis of the existing models for calculating parameters of parabolic and parabolic cylindrical through concentrators is presented. According to the results of the study, the differences between the methods were determined, the key parameters were calculated, the differences between approaches were determined. The mathematical model for calculating the basic characteristics for an ideal and real solar energy concentrator is created. The difference and peculiarities of the calculation of parabolic and parabolic cylindrical solar concentrators are presented. A step-by-step algorithm for calculating the characteristics of the solar concentrator is simulated. The plot of the dependence of the maximum irradiance of the parabolic and parabolic cylindrical solar concentrators are presented through solar concentrator on the maximum opening angle was constructed. The developed program can be used in modern solar technology, related to the design of powerful solar systems. Ref. 8, Tab. 3, Fig. 7.