Sökning: "Environmental friendly alternative"

Visar resultat 1 - 5 av 197 uppsatser innehållade orden Environmental friendly alternative.

  1. 1. Microbial production of chemical building blocks from lignin

    Master-uppsats, Lunds universitet/Teknisk mikrobiologi

    Författare :Kevin Bertilsson; [2024]
    Nyckelord :Lignin; Green plastic; Vanillin; Microbial production; Applied microbiology; Biology and Life Sciences;

    Sammanfattning : Plastics, derived from fossil fuels, have raised considerable environmental concerns. This has prompted the search for sustainable and safer plastic precursors alternatives. One alternative explored in the present study is vanillin, a phenolic compound derived from lignin, an abundant and renewable natural polymer. LÄS MER

  3. 2. Effective soil organic carbon monitoring in perennial agriculture systems - Sampling protocol development and evaluation

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Maja Holm; [2024]
    Nyckelord :Physical geography; ecosystem science; soil organic carbon; soil sampling; perennial crops; carbon sequestration; carbon farming; Kernza™; soil organic carbon stock; Earth and Environmental Sciences;

    Sammanfattning : Perennial agriculture systems are gaining ground as a more sustainable alternative to conventional annual agriculture, partly for their potential to increase the soil organic carbon (SOC) content. Carbon farming is another hot topic for SOC sequestration, as it creates economic incentives for farmers. LÄS MER

  4. 3. Aerodynamics simulations of Scania trucks using OpenFOAM

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Ziyi Liu; [2024]
    Nyckelord :Heavy-duty truck; Computational fluid dynamics; Air drag; OpenFOAM;

    Sammanfattning : In the field of heavy-duty vehicles, fuel efficiency and environmental protection are factors that need to be focused on, while the aerodynamic drag generated during vehicle travelling is one of the most influential aspects. This thesis delves into the aerodynamic simulation of Scania trucks using the open-source Computational Fluid Dynamics (CFD) tool, OpenFOAM v2206. LÄS MER

  5. 4. Systemdesign för miljövänliga och kostnadseffektiva reservkraftsystem : Undersökning av alternativa reservkraftsystem för en livsmedelsindustri

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Philip Clarstedt; [2024]
    Nyckelord :Backup power; Reservkraft; Hybridsystem; Batterilager; Mikrogasturbin; Dieselgenerator;

    Sammanfattning : Backup power is essential to supply important functions in society with electricity in case of a blackout. Today in Sweden most backup generators are based on diesel fuel and seldom used, but they are still associated with bad environmental impact while operating. LÄS MER

  7. 5. Inland Waterways and Short Sea Shipping - a feasible alternative for truck transportation in Sweden? - A Case Study of Container Shipping Between Uddevalla and Gothenburg -

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Filip Matei; Philip Vollert Lundqvist; [2023-07-03]
    Nyckelord :Inland waterway transportation; short sea shipping; containerized goods; cost comparison; environmental comparison; barge;

    Sammanfattning : Within the European Union, Inland Waterway Transportation accounts for the lowest share of goods transport, with only 5.8%. In Sweden, the share is even lower where Inland Waterway Transportation accounts for less than 1% of the goods transports. LÄS MER