Sökning: "fishway"

Visar resultat 1 - 5 av 14 uppsatser innehållade ordet fishway.

  1. 1. Adaptive Fishway Design : Designing a Bypass Channel to Fit Large Discharge Fluctuations

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Melina Sattelmeier; [2023]
    Nyckelord :;

    Sammanfattning : Especially with regard to achieving the goals of the European Water Framework Directive, the construction of fishways is becoming more prominent in Sweden's hydraulic engineering sector. Particularly the importance of nature-like bypass channels is increasing, being the type of fishway that is currently implemented in most cases of small scale hydropower. LÄS MER

  3. 2. The climate impact of fishways : A life cycle assessment of Blyberg’s and Spjutmo’s up- and downstream fishways

    Master-uppsats, Linköpings universitet/Industriell miljöteknik

    Författare :Ellen Lundin; Lovisa Liljenberg; [2023]
    Nyckelord :LCA; life cycle analysis; life cycle assessment; fishways; fish; fish migration; climate impact; technical fishways; co2 equivalents; co2 eq; hydro power; HPP; Sweden; construction; concrete; reinforcement steel;

    Sammanfattning : The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. LÄS MER

  4. 3. Modellering och utvärdering av omlöp vid Näktens regleringsdamm : En icke-stationär flödesanalys av en kombinerad teknisk och naturlik fiskpassage i Jämtland, Sverige

    Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)

    Författare :Jenny Rydén; [2023]
    Nyckelord :Connectivity; Billstaån; HEC-RAS; flows; hydropower.; Konnektivitet; Billstaån; HEC-RAS; flöden; vattenkraft;

    Sammanfattning : Dams and power plants in watercourses pose a serious threat to diversity and aquatic species as they fragment habitats and create barriers. New legislation aims to facilitate the restoration of watercourses and in many places, various fish passages have been built. LÄS MER

  5. 4. Hydraulic modelling at Finsjö Övre hydropower plant : Study for evaluation of a fishway's attractiveness

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

    Författare :Eddie Blomström; [2022]
    Nyckelord :fishway; flow; hydraulics; HEC-RAS;

    Sammanfattning : In connection with the government’s approval on the proposed national plan (NAP) in 2019, it has become highly topical to find solutions problems regarding fish migration in Swedish watercourses. At Finsjö Övre hydropower plant in Emån, a new type of fishway is planned to be installed and evaluated starting at the end of 2022. LÄS MER

  7. 5. Manning’s roughness coefficient in small scale nature-like fish passages

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Aleksander Jaworowski; [2022]
    Nyckelord :Manning’s coefficient; flow measurement; fish passage; fish migration; roughness coefficient; Technology and Engineering;

    Sammanfattning : Fishway construction remains a crucial measure in environmental adaption of flow barriers. A well-functioning fishway should be able to pass all naturally occurring species of fish and other aquatic fauna. LÄS MER