Search for dissertations about: "Thermal response"

Showing result 16 - 20 of 218 swedish dissertations containing the words Thermal response.

  1. 16. Smart Energy Grids – Utilization of Space Heating Flexibility

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Johan Kensby; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; demand side management; heat pump; thermal energy storage; exhaust air heat pump; thermal storage in buildings; heat price control; smart; District heating; heat source shifting; demand response;

    Abstract : Buildings are the largest energy-using sector in the world. Since the generation of energy is highly associated with greenhouse gas emissions, contributing to climate change, there is a large focus on reducing energy use in buildings. READ MORE

  2. 17. Design of ground source heat pump systems. Thermal modelling and evaluation of boreholes

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Saqib Javed; Lunds universitet.; Lund University.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ground-coupled; optimization; simulation; borehole; Ground source heat pump; ground heat exchanger; thermal response test; fluid temperature; sensitivity analysis;

    Abstract : Ground source heat pump systems are fast becoming state-of-the-art technology to meet the heating and cooling requirements of the buildings. These systems have high energy efficiency potential which results in environmental and economical advantages. READ MORE

  3. 18. Combined thermal and mechanical loading of railway wheel treads. A numerical study of material response and cracking under braking conditions

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Sara Caprioli; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling Contact Fatigue; Ratchetting; Tread braking; Plastic deformation; Thermal cracking;

    Abstract : The scope of the thesis is prediction of the material response owing to combined thermal and mechanical loading of a railway wheel tread. The long-term objective is to improve models for prediction of surface-initiated Rolling Contact Fatigue (RCF) under the combined effect of mechanical loading due to rolling (and sliding) contact and thermal loading due to braking and/or wheel--rail friction. READ MORE

  4. 19. Concrete creep and thermal stresses new creep models and their effects on stress development

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Gustaf Westman; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Abstract : This thesis deals with the problem of creep in concrete and its influence on thermal stress development. New test frames were developed for creep of high performance concrete and for measurements of thermal stress development. Tests were performed on both normal strength and high performance concretes. READ MORE

  5. 20. Experimental study of an intermittent ventilation system in high occupancy spaces

    University dissertation from Gävle : Gävle University Press

    Author : Alan Kabanshi; Högskolan i Gävle.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Intermittent airflow; Indoor air quality; Perceived air quality; Thermal sensation; thermal comfort; Air movement acceptability; Convective cooling; Cooling effect.; Intermittent luftflöde; Luftstrålar; Upplevd luftkvalitet; Termisk komfort; Acceptans av luftrörelser; Konvektiv kylning; Kyleffekt.;

    Abstract : Spaces with high occupancy density like classrooms are challenging to ventilate and use a lot of energy to maintain comfort. Usually, a compromise is made between low energy use and good Indoor Environmental Quality (IEQ), of which poor IEQ has consequences for occupants’ health, productivity and comfort. READ MORE