Driezum, Rudi van (2023) Robust Estimation of the Temperature Profile of a Stratified Thermal Storage Tank. Integration Project, Industrial Engineering and Management.
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Abstract
Global warming has been a crucial topic for the last decades. District Heating can play a significant role in reducing energy usage and CO2 emissions. This research aims to review different types of observer designs for estimating the temperature profile of a stratified thermal storage tank in district heating applications. First, the mathematical model for a stratified thermal storage tank is deducted from the literature and includes the slow buoyancy and mixing terms, in addition to most mathematical descriptions. Literature research on the Sliding Mode is conducted, and the essential operation of the Sliding Mode is elucidated. For the Sliding Mode Observer Design, a bounded disturbance function is fundamental. This research conducts literature research on all parameters to check their possible disturbance. From all gathered possible disturbance per parameter, a bounded disturbance function is designed which can be utilized. Different Sliding Mode Observer designs are explained, and there is shown that each design with a disturbance does not match a fundamental matching condition needed for the implementation of the observer. The research proves that the mathematical model, as depicted, cannot be observed by a Sliding Mode Observer. This thesis proposes a narrowed-down error function that enables the design of a Sliding Mode Observer. This narrowed-down system does not converge within a reasonable time. However, for fictional values of the parameters it does converge.
| Item Type: | Thesis (Integration Project) |
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| Supervisor name: | Scherpen, J.M.A. and Machado Martinez, J.E. and Taheri, M. |
| Degree programme: | Industrial Engineering and Management |
| Thesis type: | Integration Project |
| Language: | English |
| Date Deposited: | 30 Jan 2023 10:55 |
| Last Modified: | 30 Jan 2023 10:55 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/29181 |
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