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dc.contributor.authorXu, Luyi
dc.contributor.authorTorrens, J. Ignacio
dc.contributor.authorGuo, Fang
dc.contributor.authorYang, Xudong
dc.contributor.authorHensen, Jan L.M.
dc.date.accessioned2020-04-28T13:39:03Z
dc.date.available2020-04-28T13:39:03Z
dc.date.issued2018-06-05
dc.identifier.citationXu, Luyi, J. Ignacio Torrens, Fang Guo, Xudong Yang, and Jan L.M. Hensen. “Application of Large Underground Seasonal Thermal Energy Storage in District Heating System: A Model-Based Energy Performance Assessment of a Pilot System in Chifeng, China.” Applied Thermal Engineering 137 (June 2018): 319–328. doi:10.1016/j.applthermaleng.2018.03.047.en
dc.identifier.issn1359-4311en
dc.identifier.urihttp://hdl.handle.net/11556/911
dc.description.abstractSeasonal thermal energy storage (STES) technology is a proven solution to resolve the seasonal discrepancy between heating energy generation from renewables and building heating demands. This research focuses on the performance assessment of district heating (DH) systems powered by low-grade energy sources with large-scale, high temperature underground STES technology. A pilot DH system, located in Chifeng, China that integrates a 0.5 million m3 borehole thermal energy storage system, an on-site solar thermal plant and excess heat from a copper plant is presented. The research in this paper adopts a model-based approach using Modelica to analyze the energy performance of the STES for two district heating system configurations. Several performance indicators such as the extraction heat, the injection heat and the storage coefficient are selected to assess the STES system performance. Results show that a lower STES discharge temperature leads to a better energy performance. A sensitivity analysis of the site properties illustrates that the thermal conductivity of soil is the most influential parameter on the STES system performance. The long-term performance of the STES is also discussed and a shorter stabilization time between one and two years could be achieved by discharging the STES at a lower temperature.en
dc.description.sponsorshipThis research is part of the seasonal storage for solar and industrial waste heat utilization for urban district heating project funded by the Joint Scientific Thematic Research Programme (JSTP)–Smart Energy in Smart Cities. We gratefully acknowledge the financial support from the Netherlands Organisation for Scientific Research (NWO). We would also like to thank our research partners from Tsinghua University working on the project of the International S&T Cooperation Programof China (ISTCP) (project No. 2015DFG62410). Without their efforts, we would not have been able to obtain the technical data to conduct the case study.en
dc.language.isoengen
dc.publisherElsevier Ltden
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleApplication of large underground seasonal thermal energy storage in district heating system: A model-based energy performance assessment of a pilot system in Chifeng, Chinaen
dc.typearticleen
dc.identifier.doi10.1016/j.applthermaleng.2018.03.047en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsBuilding performance simulationen
dc.subject.keywordsDistrict heatingen
dc.subject.keywordsIndustrial waste heaten
dc.subject.keywordsModelicaen
dc.subject.keywordsSeasonal thermal energy storageen
dc.subject.keywordsSolar thermal collectorsen
dc.journal.titleApplied Thermal Engineeringen
dc.page.final328en
dc.page.initial319en
dc.volume.number137en


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