Sökning: "temperaturhöjning"

Visar resultat 1 - 5 av 19 uppsatser innehållade ordet temperaturhöjning.

  1. 1. Methane production in Swedish freshwater lakes at different temperatures : -A laboratory study

    Kandidat-uppsats, Linköpings universitet/Tema Miljöförändring

    Författare :Mattias Edström; [2020]
    Nyckelord :Methane; lakes; temperature; sediment;

    Sammanfattning : In this study, incubations of sediments from three Swedish lakes, Parsen, Södra Teden, and Venasjön, were made to examine CH4 production during different temperatures. The incubations took place in two different climate rooms, one with a decreasing temperature and one with an increasing temperature with analyses made on the temperature levels around 10 and 20°C. LÄS MER

  2. 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

  3. 3. Vem kallar du för ´klimatflykting´? : En studie över hur svenska dagstidningar gestaltar klimatflyktingar

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Författare :Amanda Vikingsson; [2019]
    Nyckelord :Climate refugees; political ecology; framing theory; dehumanization; ecological modernization; denial; Klimatflyktingar; politisk ekologi; gestaltningsteori; avhumanisering; ekologisk modernisering; förnekelse;

    Sammanfattning : Medeltemperaturen på jorden har höjts med 1 grad sedan förindustriell tid. Effekterna av denna temperaturhöjning visar sig i form av förhöjda havsnivåer, smältande havsis i Arktis och extrema väderförhållanden. LÄS MER

  4. 4. Identification of waste heat sources in Uppsala - with potential use in Bergsbrunna as a case study

    Master-uppsats, KTH/Energiteknik; KTH/Energiteknik

    Författare :Malin Frisk; Elise Ramqvist; [2018]
    Nyckelord :;

    Sammanfattning : Reducing energy losses within the energy system is essential for a sustainable future. Waste heat usage could be a part of an increased energy efficiency and a sustainable use of resources. Uppsala Municipality aims to become a climate positive municipality in 2050, with negative net emissions of CO2. LÄS MER

  5. 5. A case study of the possibility, consequences and synergies for Södra Cell Mörrum to invest in a steam turbine

    Master-uppsats, Lunds universitet/Institutionen för Energivetenskaper

    Författare :Mattias Svensson; [2018]
    Nyckelord :Paper pulp mill; Turbine; Financial analysis; Technology and Engineering;

    Sammanfattning : The purpose of this study was to investigate whether Södra Cell Mörrum, SCM, could invest in a steam turbine to produce profitable electricity from excess steam, which is currently being released into the atmosphere. Furthermore, this study investigated the potential side effects from this installation and suggests solutions. LÄS MER