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Accepted Manuscript
Article Type: Editorial
J. Sol. Energy Eng.
Paper No: SOL-23-1025
Published Online: January 30, 2023
Topics: Solar energy
Journal Articles
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Particle egress captured from the falling particle receiver aperture during...
Published Online: January 27, 2023
Fig. 1 Particle egress captured from the falling particle receiver aperture during testing. The plume can be observed within the region inside the rectangle on the left half of the image. More
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Irradiance incident on the aperture of the falling particle receiver. As it...
Published Online: January 27, 2023
Fig. 2 Irradiance incident on the aperture of the falling particle receiver. As it can be observed, based on the irradiance level desired, there may be heat flux spillage on from the 2-m diameter spot [ 12 ]. More
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Diagram of outlying the progression of the calculation in the model. The op...
Published Online: January 27, 2023
Fig. 4 Diagram of outlying the progression of the calculation in the model. The opacity, background temperature, and pixel temperature are values obtained from the images captured from the cameras. These values are then used to calculate the expected particle irradiance. Knowing this value, the tr... More
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Left: components of the small particle receiver. Top and bottom hoppers ins...
Published Online: January 27, 2023
Fig. 6 Left: components of the small particle receiver. Top and bottom hoppers instrumented with thermocouples, a 0.5-g resolution scale to record the mass flowrate of the particle curtain, a flow mesh to increase the uniformity and decrease the opacity of the curtain, and an LED panel to generate... More
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Graphical representation of the entire calculation on the opacity equation ...
Published Online: January 27, 2023
Fig. 8 Graphical representation of the entire calculation on the opacity equation (Eq. (9) ). The result of the calculation is the same image as Fig. 7 ; however, the values range from 0 to 1 for opacity. More
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The average opacity as a function of discharge position can be obtained by ...
Published Online: January 27, 2023
Fig. 9 The average opacity as a function of discharge position can be obtained by discretizing the resulting image from the calculation in Fig. 8 into sub-regions of a discrete size. The error bars on the empirical values represent 1 − σ from the mean for every sub-region. More
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Left: sample thermogram from a curtain preheated to 200 °C. Right: once the...
Published Online: January 27, 2023
Fig. 10 Left: sample thermogram from a curtain preheated to 200 °C. Right: once the thermograms are imported into matlab , the average apparent temperature profile is generated by averaging every row of the thermogram for the 554-thermogram sequence. Similarly, these profiles corresponding to ind... More
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Comparison of the empirically derived profile (line) and the extracted temp...
Published Online: January 27, 2023
Fig. 11 Comparison of the empirically derived profile (line) and the extracted tempreatures using the Stefan–Boltzmann's (dark gray circles) and Planck's (light gray circles) model for a preheat temperature of 200 °C considering only the region of interest [ 20 ] More
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Comparison of particle temperature profiles for carbo and sand particles pr...
Published Online: January 27, 2023
Fig. 12 Comparison of particle temperature profiles for carbo and sand particles preheated at different temperatures. The measured temperature represents the profile developed using the empirical lumped capacitance model. The extracted temperature values are comparable to those from the empirical ... More
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