Sökning: "HT-BTES"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet HT-BTES.

  1. 1. Performance Evaluation of a High Temperature Borehole Thermal Energy Storage Under Influence of Groundwater Flow

    Master-uppsats, KTH/Energiteknik

    Författare :Max Hesselbrandt; [2021]
    Nyckelord :;

    Sammanfattning : Recent years have seen a growing interest in large-scale high-temperature borehole thermal energy storage (HT-BTES) as a means to store industrial waste heat and solar energy between the seasons. A profound understanding and characterization of the thermal and hydraulic processes involved in such systems is required for the optimal design as well as for environmental assessments of the storage. LÄS MER

  3. 2. Potentiella miljörisker med geoenergisystems temperaturpåverkan i mark och grundvatten

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Julia Nilsson; [2020]
    Nyckelord :Geoenergi; grundvattenkemi; mikroorganismer; flora; fauna; Earth and Environmental Sciences;

    Sammanfattning : The aim of this literature study was to answer whether the thermal impact of geothermal energy systems pose a potential environmental risk to groundwater quality and microorganisms in the sub surface and to above ground vegetation. This study shows that the thermal impact of high temperature systems operating with temperatures ≥25⁰C in groundwater could lead to adverse effects on groundwater chemistry and biodiversity, such as mobilization of arsenic and DOC. LÄS MER

  4. 3. Thermal Performance Analysis of High Temperature Borehole Thermal Energy Storage Design from an Insulation Perspective

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Tobias Magnusson; Joel Ljunggren; [2019]
    Nyckelord :High Temperature Borehole Thermal Energy Storage; HT-BTES; Thermal Energy Storage; TRNSYS; Technology and Engineering;

    Sammanfattning : Thermal energy storage is a growing concept within the sector of energy production. The concept is based on storage of excess thermal energy, for usage during high demand, as a mean of reducing the need for new production. LÄS MER

  5. 4. Transient modeling of a high temperature borehole thermal energy storage coupled with a combined heat and power plant

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Malin Malmberg; [2017]
    Nyckelord :;

    Sammanfattning : Coupling High-Temperature Borehole Thermal Energy Storages (HT-BTES) with existing Combined Heat and Power (CHP) systems is a promising approach to increase energy efficiency of district energy systems through recovery of otherwise wasted heat. This solution is currently being discussed in Sweden by the company Tekniska Verken in Linköping AB, for storing waste heat from their CHP operation in summer in a HT-BTES and to utilize it during peaks in winter. LÄS MER

  7. 5. Högtempererat borrhålslager för fjärrvärme

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Naturresurser och hållbar utveckling

    Författare :Karl Hallqvist; [2014]
    Nyckelord :HT-BTES; BTES; TES; High Temperature; Borehole; Duct; Thermal; Energy Storage; District Heating; Seasonal Storage; Storage; Pellet; Heat; Plant; Energy; Power; Flow; Martes; Environmental impact; Finance; Investment Cost; Technology; Drilling; Saving; Gothenburg; Heat Transfer; Bedrock; Review; Feasibility Study; Load; Peak load; Base load; District Heating Production; Network; Grid; Pipe; Borehole Heat exchanger; Collector; New; Future; Generation; Low temperature; Bottle neck; System; Successive; calculation; Matlab; Computor; programming; Science; HT-BTES; BTES; TES; Borrhålslager; Säsongslager; Fjärrvärme; Martes; Värmelager; Pellets; Panna; Energi; Effekt; Flöde; Miljöpåverkan; Ekonomi; Investeringskostnad; Teknik; Borrning; Besparing; Göteborg; Värmeöverföring; Berggrund; Review; Förstudie; Borrhål; Last; Spetslast; Baslast; Fjärrvärmeproduktion; Hög temperatur; Produktion; Nät; Rör; Kollektor; Borrhålsvärmeväxlare; Ny; Framtid; Generation; Låg temperatur; Flaskhals; System; Successive; kalkylering; Matlab; Data; programmering; Vetenskap;

    Sammanfattning : The district heating load is seasonally dependent, with a low load during periods of high ambient temperature. Thermal energy storage (TES) has the potential to shift heating loads from winter to summer, thus reducing cost and environmental impact of District Heat production. LÄS MER