Cooling performances time series of CSP plants: Calculation and analysis using regression and ANN models

摘要

Concentrating solar power (CSP) plants use large quantities of water, for different processes such as cycle makeup and cooling. Thus, the estimation of cooling performances in such kind of plants is highly required. On the other hand, yearly round simulations of cooling performances of these plants require many calculations, data analysis, and time consuming. In this regard, empirical models and artificial neural networks (ANN) can be good alternatives in this topic. Therefore, the two main aims of this study are: (1) to compare the cooling performances, including water usage and power consumption for cooling of different CSP layouts, and (2) to develop regression and ANN models () to estimate these performances during the whole year, without passing through a detailed modelling.According to the obtained results, the configurations based on molten salt technology show better cooling performances compared to other configurations, while the direct steam generation plant is the worst. Furthermore, the generated database using ANN is more accurate than that generated by different regression models. However, these regression models still the easiest and the simplest methodology for this purpose. (C) 2020 Elsevier Ltd. All rights reserved.