Sökning: "Collector."

Visar resultat 1 - 5 av 259 uppsatser innehållade ordet Collector..

  1. 1. Värme från gruvvatten : En undersökning av olika metoder för att kunna hämta värme ur vattnet som pumpas upp ur gruvorna

    Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Glas Mathilda; [2023]
    Nyckelord :gruvvatten; värmepump; värmeväxlare; kollektor;

    Sammanfattning : Boliden Mineral AB - Boliden Mines is a company that carries out continuous improvement work in the energy and environmental area. During this degree project, the possibility of making use of waste heat from the mine water that is pumped out of the Renström mine was evaluated. LÄS MER

  3. 2. Investigating self-discharge in a graphite dual-ion cell using in-situ Raman spectroscopy.

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Ismail Yussuf Hassan; [2023]
    Nyckelord :graphite; dual-ion battery; parasitic reaction; cathode-electrolyte interface; anion intercalation; concentrated electrolyte; self-discharge; Raman spectroscopy;

    Sammanfattning : Anion intercalation in the graphite positive electrode of a dual-ion battery requires high potential (> 4.3 V vs Li+/Li), which aggravates parasitic reactions involving electrolyte decomposition and Al corrosion, manifesting in poor coulombic efficiency, cycle life, and quick self-discharge. LÄS MER

  4. 3. Evaluating the Performance of a Solar Thermal Field: A Case Study with Proposed Improvements

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Anton Segovia Lundh; [2023]
    Nyckelord :solar thermal; concentrated solar power CSP ; renewable energy; performance evaluation; Technology and Engineering;

    Sammanfattning : Given the urgency of climate change, alternative energy sources, and policy strategies are needed to reach the net-zero emission goals and halt global warming. Solar thermal energy is a renewable and abundant energy source that could be a part of the solution. LÄS MER

  5. 4. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Elina Fernö; [2023]
    Nyckelord :Iron reduction; trace element analysis on magnetite ore; molten salt electrolysis; sodium hydroxide electrolyte; NaOH; greenhouse gas; carbon dioxide; CO2; green ironmaking; Järnreduktion; spårelementanalys på magnetitmalm; smältelektrolys; elektrolys i natriumhydroxid; NaOH; elektrolyt; växthusgas; koldioxid; CO2; grön järnframställning;

    Sammanfattning : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. LÄS MER

  7. 5. Improvement of a Vermicompost Sieving Machine for Smallholder Farmers in the Philippines : A study conducted in science city of Muñoz, Philippines

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Anokina Marcos Yousif; Felipe Vidal; Ioana Cosaceanu; [2023]
    Nyckelord :Philippines; Philippine Carabao Center; Sieve Machine; Smallholder farmer; Vermicompost; Filippinerna; maskkompostering; Philippine Carabao Center; siktmaskin; småskaliga bönder;

    Sammanfattning : The Philippines has a primarily agricultural economy, with many rural residents relying on farming for their livelihoods. The Philippine Carabao Center (PCC) was established in 1992 to support smallholder farmers in the country through research and technology development related to carabaos. LÄS MER