Sökning: "Product Lifetime"

Visar resultat 1 - 5 av 133 uppsatser innehållade orden Product Lifetime.

  1. 1. Circular economy: : Sustainability assessment of circular business models basedon material flow analysis.

    Master-uppsats, Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)

    Författare :Sara Ankar; [2023]
    Nyckelord :Circular economy; Circular business models; Product-Service-System; Profitability; Climate impact; Material Flow Analysis;

    Sammanfattning : This study has contributed to the developing concepts of circular economy by assessing circular business models and to test different approaches for circularity in a measurable way. In our current era of time, we stand against environment challenges with a warming planet and resources scarcity. LÄS MER

  3. 2. Stability improvement to a ruthenium catalyst for partial oxidation of methane

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Melker Axelsson; [2023]
    Nyckelord :catalysis; reaction engineering; kinetics; partial oxidation; chemical engineering; Technology and Engineering;

    Sammanfattning : Catalytic partial oxidation of methane (CPOM) is an energy-efficient alternative to steam reforming, the currently prevailing method for energy production from natural gas. Hulteberg Chemistry & Engineering AB has developed a catalyst for the partial oxidation of methane into syngas, for use in solid oxide fuel cells. LÄS MER

  4. 3. Status Mapping of tank to grave management of Low-GWP refrigerants.

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

    Författare :Sandra Parra Gimeno; [2023]
    Nyckelord :Refrigerant; Blends; Synthetic low-GWP refrigerant; Natural refrigerant; Global Warming Potential GWP ; Tank-to-grave; Interviews.; Köldmedier; Blandning; Globalt uppvärmningspotential GWP ; Låg-GWP köldmedier; Naturligt köldmedier; installation till destruktion; Intervjuer.;

    Sammanfattning : Refrigeration plays a vital role today in various residential, commercial, and industrial processes, requiring refrigerants to facilitate the cooling or heating processes. Over time, refrigerants have undergone significant changes to meet technological, social, environmental, and economic needs. LÄS MER

  5. 4. Jämförelse mellan fyra olika bjälklag med avseende på LCA

    M1-uppsats, KTH/Byggteknik och design

    Författare :Hamza El Yasini; Malki Hanna; [2023]
    Nyckelord :;

    Sammanfattning : In today's society, there are several different options for frame solutions, such as material and design. The purpose of the work is to compare four different options of joists and show the difference between the materials considering carbon dioxide emissions. LÄS MER

  7. 5. Återbruk inom träkonstruktion : En undersökning av projektering för demontering & tillståndsbedömning

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Olivia Ödmark; Lina Magnusson; [2023]
    Nyckelord :återbruk; träkonstruktion;

    Sammanfattning : A building's life cycle consists of four stages; it is designed, it is built, it is used and it is demolished. Only 10 % of the total resources are reused and returned in a circular cycle. In order to achieve a greater use of resources, a change is required already during planning, where uncomplicated disassembly and reuse must be prioritized. LÄS MER