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Title Design and Optimization of Volumetric Solar Receivers based on Nanoparticles with Supercritical Carbon Dioxide:
URL
Publication Date
Degree Level masters
University/Publisher Delft University of Technology
Subjects/Keywords nanoparticles
Contributors Pecnik, R.
Language en
Rights (c) 2014 Hernandez Aita, D.C.
Country of Publication nl
Record ID oai:tudelft.nl:uuid:28335ec2-4055-4a71-a256-af401168aa48
Other Identifiers uuid:28335ec2-4055-4a71-a256-af401168aa48
Repository delft
Date Retrieved
Date Indexed 2017-06-19

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…ii compared to conventional collectors for different configurations of receiver height and incident solar concentration. Finally, the volumetric solar receiver, with s-CO2 and carbon nanoparticles, is evaluated at a high inlet temperature of 675 K…

…11 2-3 Radiative Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2-3-1 Radiative properties of s-CO2 as base fluid . . . . . . . . . . . . . . . . . 11 2-3-2 Radiative properties of nanoparticles

nanoparticles suspended in the base-fluid, which decreases the temperature difference between the absorber and the fluid, and reduces the emissive losses at higher temperatures. The incident radiation being directly absorbed by the working fluid is illustrated…

…solar receivers with Therminol VP-1, as base fluid, and carbon-coated nanoparticles. A one-dimensional transient heat transfer model was developed to investigate the effect of solar concentration, receiver height and optical thickness on receiver…

…within the nanofluid. He concluded that the presence of nanoparticles increases the absorption of incident radiation by more than 9 times over pure water. The results showed that the performance of the receiver varies between 30% and 80% for different…

…for direct absorption that can work at high-temperatures is a big challenge. Supercritical CO2 , as a base fluid, has not been considered in the past in volumetric solar receivers with nanoparticles. However, it has several advantages that make it a…

…optical properties of s-CO2 are investigated; 2. A numerical model for volumetric receivers with nanoparticles has been developed. The 2-D steady-state model has been documented in chapter 3; 3. A comparative analysis of Therminol VP-1 and s-CO2 as the…

…These studies indicate that the addition of very small volume concentration (φ ≤ 0.15) of nanoparticles enhance significantly the properties of the mixture. Furthermore, the radiative properties of the s-CO2 and nanoparticles are described. 2…

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