Please use this identifier to cite or link to this item:
http://dx.doi.org/10.25673/118542
Title: | Towards sustainable shallow geothermal systems : combined simulation-optimization of borehole heat exchanger fields under uncertainty |
Author(s): | Soltan Mohammadi, Hesam![]() |
Referee(s): | Bayer, Peter![]() Menberg, Kathrin ![]() |
Granting Institution: | Martin-Luther-Universität Halle-Wittenberg |
Issue Date: | 2025 |
Extent: | 1 Online-Ressource (xxiv, 113 Seiten) |
Type: | Hochschulschrift![]() |
Type: | PhDThesis |
Exam Date: | 2025-02-27 |
Language: | English |
URN: | urn:nbn:de:gbv:3:4-1981185920-1205002 |
Abstract: | The unbalanced performance of borehole heat exchangers (BHEs) causes subsurface thermal anomalies, reducing geothermal system efficiency and posing environmental risks. To address this, a sequential simulation-optimization framework is proposed to dynamically adjust energy demand distribution among BHEs over long-term operation. Optimized operation plans are refined by integrating monitoring data with model-based simulations. In the following, an embedded model calibration strategy utilizes parameter estimation to improve BHE field optimization. The effectiveness of this approach is demonstrated using a synthetic BHE case with various transient groundwater velocity fluctuation patterns. Finally, a Bayesian inference-based stochastic framework is developed to characterize multiple correlated unknown parameters in a BHE field with heterogeneous subsurface settings and groundwater flow, enhancing the reliability of temperature simulations. |
URI: | https://opendata.uni-halle.de//handle/1981185920/120500 http://dx.doi.org/10.25673/118542 |
Open Access: | ![]() |
License: | ![]() |
Appears in Collections: | Interne-Einreichungen |
Files in This Item:
File | Description | Size | Format | |
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Dissertation_MLU_2025_SoltanMohammadiHesam.pdf | 65.3 MB | Adobe PDF | ![]() View/Open |