Essays about: "Heat atlas"

Showing result 1 - 5 of 7 essays containing the words Heat atlas.

  1. 1. Heat atlas of Gotland : A GIS-based support tool for modelling the heat sector.

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Hugo Segerström; [2023]
    Keywords : Heat atlas; GIS; heat sector; energy system; energy system modelling; TIMES; QGIS; district heating; spatial data; energy transition; GIS; energisystems modellering; TIMES; värmesektorn; fjärrvärme; värmeatlas; QGIS; geografisk data; energisystem;

    Abstract : With sharp climate goals to be climate neutral by 2045, Sweden needs to rapidly change the present energy system. The Swedish government has assigned Gotland as a pilot area for the energy transition, due to its geographical constrains as an island, and because of the major structural changes planned for Gotland’s energy supply and industrial establishment. READ MORE

  3. 2. Investigation of case hardened steel subjected to torsion: An experimental and numerical elastic-plastic material study

    University essay from KTH/Hållfasthetslära

    Author : Jonathan Fridstrand; [2022]
    Keywords : Torsion; Shear stress-strain relation; Elastoplastic material; Case hardened steel; Custom material model; Vridning; Skjuvtöjning och -spänning; Elastiskt-plastiskt material; Sätthärdat stål; Anpassad materialmodell;

    Abstract : There is currently a knowledge gap regarding the plastic material properties of many steel types that Atlas Copco use in their high torque power tools. This makes it difficult to fully utilise the capabilities of the Finite Element Method (FEM) to aid the developmental process. READ MORE

  4. 3. Research and Testing of an Electromechanical solution for Vibration Assisted Drilling of Aerospace Materials

    University essay from Uppsala universitet/Solcellsteknik

    Author : Jonathan Nordenholm; [2020]
    Keywords : vibration; drilling; chips; aerospace; advanced drilling unit;

    Abstract : This thesis considers vibration drilling in aerospace materials. The tolerances of the drilled holes in aerospace industry are very low since hole quality is an important factor. Conventional methods of drilling create long ribbon formed chips that increases the heat formation and decreases the hole quality. READ MORE

  5. 4. Analysis of urban ecosystem condition indicators for the large urban zones and city cores in EU : threshold assessment and exploration of the relation to ecosystem services through the application of G.I.S

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Christina Kourdounouli; [2018]
    Keywords : geography; GIS; EU; urban atlas; larger urban zone; city core; urban ecosystem; ecosystem condition indicator; urban green space; impervious surface; natural area; agricultural area; protected area; abandoned area; number of inhabitants per area; artificial area per inhabitant; urban ecosystem condition indicator thresholds; ecosystem services; recreation opportunity spectrum; NO2 removal by urban vegetation; urban heat island effect; cluster analysis; precipitation; temperature; climate adaptation; Earth and Environmental Sciences;

    Abstract : As almost three out of four EU citizens live in urban areas and this number is expected to further grow, studies on urban ecosystems and their services are crucial to understand a city’s environmental structure and capabilities. The European Commission has published a relative report which suggests an urban ecosystem condition indicator framework, yet without suggesting respective thresholds that might indicate a “desired” environmental condition of the city. READ MORE

  6. 5. CORROSION-FATIGUE TESTING ON STEEL GRADES WITH DIFFERENT HEAT AND SURFACE TREATMENTS USED IN ROCK-DRILLING APPLICATIONS

    University essay from KTH/Materialvetenskap

    Author : Luis Miguel Béjar; [2016]
    Keywords : corrosion fatigue; crack; rotating-bending; S-N curve; staircase method; fatigue strength; shot peening; case hardening; through hardening; fatigue; corrosion; rock drill; atlas copco; steel;

    Abstract : Corrosion fatigue is a common failure mechanism in rock drilling components and many othermechanical parts subjected to cyclic loads in corrosive environments. A crucial part in the design ofsuch components resides in the selection of the right materials for the application, which ideallyinvolves testing and comparison of their performance under working conditions. READ MORE