Abstract : PROBLEM The preliminary design step is one of the most important stage of the project process of a solar concentrating facility. In order to improve performances of the central receiver system (CRS), we developed a simulation tool based on Monte Carlo methods taking into account sun positions over the year to evaluate yearly energy at receiver in one simulation. With the efficient Monte Carlo Sun Tracking (MCST) algorithm, we obtain a fast and accurate code that permits to achieve optimization step in a reasonable time.
