Search for dissertations about: "Ground heat storage"

Showing result 1 - 5 of 12 swedish dissertations containing the words Ground heat storage.

  1. 1. Developments in Ground Heat Storage Modeling

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Alberto Lazzarotto; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Borehole fields; g-functions; network; inclined; integrated design; Energiteknik; Energy Technology; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Ground heat storage systems can play an important role for the reduction of green house gases emissions by increasing the exploitation of renewable energy sources and “waste heat” with a consequent diminution of the use of fossil fuels.A ground heat storage consists in an array of vertical boreholes placed in such a way that promotes the mutual thermal interaction between the ground heat exchangers creating the necessary conditions required to effectively store and retrieve heat. READ MORE

  2. 2. Optimization of ground-coupled systems for heating and cooling of buildings

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Jüri Naumov; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; free-cooling; brine temperature; heat pump; ground system; heating demand; storage; building load; cooling demand; Borehole;

    Abstract : The use of ground-coupled systems in commercial buildings offers economic as well as environmental advantages. When both heating and cooling is required, a ground-coupled system can function both as a heat source and a heat sink. At the same time, it can also serve as a short term as well as a seasonal storage. READ MORE

  3. 3. Ground heat storage : thermal analyses of duct storage systems

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Göran Hellström; Lunds universitet.; Lund University.; [1991]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1991:Hellström;

    Abstract : .... READ MORE

  4. 4. Influence of thermal mass on the heating and cooling demands of a building unit

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Fredrik Ståhl; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal mass; environmental impact; thermal comfort; heat storage; life cycle; building energy use; earth tube heat exchanger; comfort interval; heavy or light buildings; building structure;

    Abstract : The purpose of this work is to find to what extent the thermal properties of the building materials, the allowed indoor temperature swing, determined by the comfort interval, and, to some extent, the ventilation strategy can affect the heating and cooling demand of a building. It is well known that a thermally heavy building, that is a building with a high heat capacity, often demands less energy for heating and cooling and have a more stabile indoor temperature due to heat storage in the building structure. READ MORE

  5. 5. The Underground as a Storage Facility. Modelling of Nuclear Waste Repositories and Aquifer Thermal Energy Stores

    University dissertation from Division of Mathematical Physics, Sölveg. 14A, Box 118, SE-221 00 Lund, Sweden

    Author : Thomas Probert; Lunds universitet.; Lund University.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; exponential decay; modelling; fractured rock; classical mechanics; quantum mechanics; Mathematical and general theoretical physics; relativity; statistical physics; thermodynamics; Matematisk och allmän teoretisk fysik; klassisk mekanik; relativitet; kvantmekanik; gravitation; statistisk fysik; termodynamik; Environmental technology; pollution control; kontroll av utsläpp; Miljöteknik; conformal flow; heat as a tracer; KBS-3; stress field; temperature field; analytical solution; salt buoyancy; groundwater flow; nuclear waste repository; aquifer thermal energy storage; Fysicumarkivet A:1998:Probert;

    Abstract : Popular Abstract in Swedish Denna skrift behandlar marklagring av värme, kyla och kärnavfall.... READ MORE