Search for dissertations about: "Thermal response"

Showing result 11 - 15 of 218 swedish dissertations containing the words Thermal response.

  1. 11. Mechanisms of Electrical Ageing of Oilimpregnated Paper due to Partial Discharges

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mohamad Ghaffarian Niasar; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; partial discharges; oil-impregnated paper; oil; transformer insulation; dielectric frequency response; breakdown strength; ion mobility; thermal ageing; electrical ageing; moisture in paper; life time; thermal breakdown.; Electrical Engineering; Elektro- och systemteknik;

    Abstract : In this thesis, partial discharge (PD) phenomenon in oil-impregnated paper (OIP) is investigated under accelerated electrical stress. The thesis is mainly focused on the characteristic of PD activity and the influence it has on the insulation properties of OIP. READ MORE

  2. 12. A Systematic Approach to Integrated Building Performance Assessment and Visualisation

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Samer Hassanie; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal comfort; energy consumption; building certifications; occupancy; modeling; presence; pattern recognition; Demand controlled ventilation; Indoor thermal environment; Occupancy; Time response; Energy use; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : The aim of this project was to develop a holistic approach to building-performance assessment without limiting it to energy use (usually expressed in kWh/m2/year), but rather include more parameters that represent the following aspects: Economic, environmental, and quality of service provided to the occupant/client. If it can be shown that buildings can be operated not only in an energy-efficient way, but also in a way that takes into consideration the needs of the occupants, a case could be built that a higher quality of indoor environment does not necessarily mean a higher economic impact. READ MORE

  3. 13. Modelling and monitoring thermal response of the ground in borehole fields

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Patricia Monzó; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ground temperature response; borehole heat exchanger; modelling; monitoring; sizing; bergtemperaturrespons; borrhålsvärmeväxlare; modellering; övervakning; dimensionering; Energiteknik; Energy Technology;

    Abstract : This Ph.D. dissertation aimed at developing tools for the evaluation of ground response in borehole fields connected in parallel through modelling and monitoring studies. READ MORE

  4. 14. Rock Mass Response to Coupled Mechanical Thermal Loading Äspö Pillar Stability Experiment, Sweden

    University dissertation from Stockholm : Byggvetenskap

    Author : J. Christer Andersson; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Yielding; Spalling; Rock mass strength; Confinement; Fracturing; Tensile failure; Shear failure; Displacement; Acoustic Emission; Heating; Stress; Back calculation; Radial expansion; TECHNOLOGY Civil engineering and architecture Geoengineering and mining engineering Mining engineering; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Geoteknik och gruvteknik Gruvteknik;

    Abstract : The geological disposal of nuclear waste, in underground openings and the long-term performance of these openings demand a detailed understanding of fundamental rock mechanics. A full scale field experiment: Äspö Pillar Stability Experiment was conducted at a depth of 450 m in sparsely fractured granitic rock to examine the rock mass response between two deposition holes. READ MORE

  5. 15. Modeling and Simulations of Demand Response in Sweden

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Daniel A. Brodén; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; demand response; demand side management; model predictive scheduling; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Electric power systems are undergoing a paradigm shift where an increasing number of variable renewable energy resources such as wind and solar power are being introduced to all levels of existing power grids. At the same time consumers are gaining a more active role where self energy production and home automation solutions are no longer uncommon. READ MORE