Essays about: "turbine passage"

Showing result 1 - 5 of 14 essays containing the words turbine passage.

  1. 1. Fish Friendly Turbines forDownstream Migration : Literature review and case studies

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Signe Rosenblad; [2023]
    Keywords : Downstream passage solutions; downstream migration of fish; small-scale hydropower; eel; trout; Nedströms passagelösningar; nedströms vandring av fisk; småskalig vattenkraft; ål; öring;

    Abstract : As the energy consumption is constantly increasing, the demand of renewable energy is increasing too. Thirtythree percent of the renewable energy production in Europe constitutes of hydropower. Hydropower is animportant energy source as it has stabilizing and storing functions, but it heavily affects biodiversity. READ MORE

  3. 2. Downstream migration and survival of Atlantic salmon (Salmo salar L.) kelts and fallbacks when passing a hydropower plant

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Frans Byström; [2020]
    Keywords : migration; kelt; iteroparous; anthropogenic obstacle; survival; turbine passage;

    Abstract : Repeat spawners of Atlantic salmon may be of great importance for population stability, the return spawners can significantly contribute to recruitment of juveniles. To have a significant proportion of repeat spawners in the population, it is necessary that salmons can successfully migrate back to the sea after spawning upriver. READ MORE

  4. 3. Preliminary simulation of Porjus U9 turbine at speed no load

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Henrik Holmström; [2019]
    Keywords : Kaplan; Speed no-load; SNL;

    Abstract : Hydropower plants are shifting towards operating at off-designed conditions, meaning that the number of start-stop cycles and maintenance time due to cavitation increases. The speed no-load condition is the moment before magnetization of the generator, i.e., no load, low flow, constant runner rotational speed, guide vane and runner blade angle. READ MORE

  5. 4. CFD calculations and comparison with measured data in a film cooled 1.5 stage high pressure test turbine : With two configurations of swirlers clocking

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Ellen Hallbäck; [2018]
    Keywords : Turbine; CFD; Clocking configuration; Turbin; CFD; virvlareposition;

    Abstract : The gas turbine has an important role for the energy distribution due to its stability and flexibility. By increasing turbine inlet temperature (TIT) an increased thermal efficiency of the turbine can be achieved. The biggest limitation of the TIT is the material of the turbine components. READ MORE

  6. 5. Evolution of Cavity Tip Vortices in High-Pressure Turbines

    University essay from Uppsala universitet/Elektricitetslära

    Author : Albin Berglund; [2017]
    Keywords : CFD; turbomachinery; tip gap; fluid dynamics; cavity; rotor blade;

    Abstract : This degree project in applied physics studies the tip gap flows over the rotor blades of a high-pressure turbine. The rotor blade used in the study has an improved design that utilizes both a cavity tip and an uneven profiling to reduce turbine loss. READ MORE