In-situ measurement of concentrated solar flux and distribution at the aperture of a central solar receiver

Abstract

Abstract.A flux mapping system has been designed, implemented and experimented at the top of the Themis solar tower in France. This system features a moving bar associated to a CCD video camera and a flux gauge mounted onto the bar used as reference measurement for calibration purpose. Images and flux signal are acquired separately. The paper describes the equipment and focus on the data processing to issue the distribution of flux density and concentration at the aperture of the solar receiver. Finally, the solar power entering into the receiver is estimated by integration of flux density. The processing is largely automated in the form of a dedicated software with fast execution. A special attention is paid to the accuracy of the results, to the robustness of the algorithm and to the velocity of the processing.

Design of a High Flux Beam Characterization Device for Falling Particle Receivers

“…The edges of the wand are found using a method similar to that used by Ferriere et al [5], and is illustrated in Figure 3. The pixel intensity of the image is summed in the vertical direction of the Example Frame in Figure 3, and then the first and second derivatives are calculated.…”

A multiphysics model of large-scale compact PV–CSP hybrid plants

“…set of mirrors): eight modules of 3.62 m x 1.79 m, and one module of 2.46 m x 0.83 m filling the central gap left by the tracking system, as shown in Figure 2(a). The solar tower is 100 m high, and the receiver is located 86 m above ground level [30][31][32]. For the purpose of this work, the dimensions of the open receiver are set equal to 4 m x 2 m. Table 1 lists the most important characteristics of THEMIS plant considered in this study.…”

Heat Flux Distribution Estimation for CSP Applications

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