CSP data-driven digital twin: a novel method for flux density measurements

Kurzfassung

Concentrating solar power (CSP) is a promising renewable source of energy, due to its possible contribution to power production and fuel synthesis (among others). However, there are some constraints still limiting the economic and environmental attractive of this technology. One of the main issues to be solved is measuring the efficiency of the receivers but current methods are disruptive, expensive or complex. Accordingly, this work presents a data-driven digital-twin model usable for solar flux density measurements (FDM) in central receiver systems, also known as solar tower power plants. Specifically, this technique can be performed in real-time for operation controlling of an existing power plant or for simulation purposes, interesting for the design and commissioning of plants. Leading to the main topic, a general description of the developed library functions is shown, as well as the application of this method for the aperture plane of a pre-existing receiver in the Solar Tower Jülich (STJ). The physical infrastructure, as well as the different computer tools, are explained during this work. Furthermore, a proof of concept and on-field results using this method are included. A latency of 30s (max) and uncertainties up to 5% can be expected, so the presented technique can be influential both for industrial and research facilities.