Stegenga, Wouter (2021) Development and validation of an analytical flow model for the buried Ocean Battery. Master's Thesis / Essay, Mechanical Engineering.
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Abstract
This study presents the development and validation of an analytical Matlab model to aid the design of the buried Ocean Battery based on the efficiency of different pipe configurations. It focuses on the hydrodynamic behaviour and the mechanics that influence the fluid flow through different pipe configurations. It focuses on the pipes that are used to transport water between the rigid and flexible reservoir in the Ocean Battery, and includes a literature study into the determination of minor loss coefficients, the development of the analytical Matlab model and the validation of the model using computational fluid dynamic simulations in Comsol. The analytical model is able to calculate losses of simple pipe configurations of the buried Ocean Battery, however, complex pipe configurations cannot be evaluated due to the lack of friction factors for these. One of the main findings of this thesis was that the head loss in the current design of the buried Ocean Battery using the Matlab model was found to be only 1.4% of the total available hydrostatic head, whereas the head loss using the CFD simulations was only 0.266%. Overall, it is thus found that the current design shows great potential for energy storage, however, the differences can be mainly accounted to the simplicity of the Matlab model. Besides, Comsol is also used to perform a CFD analysis for the prototype of the deep water version of the Ocean Battery. The head loss was calculated to be 0.069 m, whereas the average hea
| Item Type: | Thesis (Master's Thesis / Essay) |
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| Supervisor name: | Vakis, A. and Prins, W.A. |
| Degree programme: | Mechanical Engineering |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 25 Aug 2021 16:52 |
| Last Modified: | 25 Aug 2021 16:52 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/25802 |
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