Numerical modelling and optimization of solar nanofluids
| dc.contributor | Graduate Program in Mechanical Engineering. | |
| dc.contributor.advisor | Ertürk, Hakan. | |
| dc.contributor.author | Akyüz, Can Onur. | |
| dc.date.accessioned | 2023-03-16T11:16:13Z | |
| dc.date.available | 2023-03-16T11:16:13Z | |
| dc.date.issued | 2017. | |
| dc.description.abstract | Direct Absorption Solar Collectors (DASCs) have gained popularity as a new and promising design for solar collector systems. DASCs utilize nano uids to absorb solar energy directly; eliminating the need for an absorber tube, and providing increased e ciency. Nano uids are dilute suspensions with dispersed nano-sized particles that show good thermal and optical or radiative properties. This study focuses on optimizing the overall system e ciency of a at plate collector system using nano uids. Core shell and pure nanoparticles are considered along with water and ethylene glycol as base uids. Core-shell nanoparticles are spherical particles with multiple layers of di erent materials that can be selected for optimal absorption characteristics. The collector model considers direct absorption of solar energy by a owing nano uid, while the spectral radiative properties of the nano uid are predicted based on Lorenz-Mie theory. Di erent volume fraction, particle size and shell thickness values are considered for each nano uid type, and optimal parameters are determined. | |
| dc.format.extent | 30 cm. | |
| dc.format.pages | xv, 78 leaves ; | |
| dc.identifier.other | ME 2017 A58 | |
| dc.identifier.uri | https://digitalarchive.library.bogazici.edu.tr/handle/123456789/15036 | |
| dc.publisher | Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017. | |
| dc.subject.lcsh | Solar collectors. | |
| dc.subject.lcsh | Nanofluids. | |
| dc.title | Numerical modelling and optimization of solar nanofluids |
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