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- W4322005536 abstract "Global warming is threatening life on earth. Utilizing renewable energy is considered the most effective measure to minimize anthropogenic CO2 emissions. Intermittency of the dominating renewables, i.e. wind and solar, cause already challenges for the existing energy systems. There is a huge natural capacity to store thermal energy under the earth's surface, and this can be used to temporarily store heat or converted energy from many sources (solar, wind or waste energy) when the demand is low, and then recover it when the demand is high in the future. The recovered thermal energy can be used for a variety of purposes, including heating buildings or even generating electricity. HT-BTES is vertical boreholes that are piped in series or parallel to create concentric thermal zones (Figure 1). It has the advantages of creating cold and warm zones as well as the possibility to switch to a reverse flow. This study investigates the effect of underground storage properties such as thermal conductivity, number of wells, and depth on charging time, charging, and discharge efficiencies to determine the overall system efficiency. In addition, HT-UBTES's temperature dynamics will be explored under varying operating conditions, such as inlet temperature and mass-flow rate.This paper provides a modeling approach for HT-UBTES fields using CMG STARS Software to evaluate the potential of storing high-temperature heat in shallow boreholes. Based on a select case study, this model will be used to optimize the performance of an HT-UBTES system. The novel contribution of this paper is the development of a framework to evaluate the technical potential of HT-UBTES, and an optimization methodology to determine the optimal operating conditions." @default.
- W4322005536 created "2023-02-26" @default.
- W4322005536 creator A5055126508 @default.
- W4322005536 creator A5057630867 @default.
- W4322005536 date "2023-05-15" @default.
- W4322005536 modified "2023-09-29" @default.
- W4322005536 title "Evaluation of High-temperature Borehole Thermal Energy Storage (HT-BTES)" @default.
- W4322005536 doi "https://doi.org/10.5194/egusphere-egu23-7656" @default.
- W4322005536 hasPublicationYear "2023" @default.
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