Essays about: "small hydropower"

Showing result 16 - 20 of 64 essays containing the words small hydropower.

  1. 16. ADAPTED FISH FRIENDLY OPERATION OF SMALL-SCALE HYDROPOWER PLANTS : AN ECONOMIC ANALYSIS

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ana Gil Merino; [2022]
    Keywords : ;

    Abstract : The hydropower sector generates almost half of the electricity produced in Sweden annually. Although hydropower is a renewable energy that produces no emissions, there is an impact on the local scale of Swedish aquatic ecosystem causing the decline of some fish species due to its impact on rivers connectivity. READ MORE

  3. 17. Numerical simulations of pore pressure on concrete buttress dams

    University essay from KTH/Betongbyggnad

    Author : Mohammed Abdi; Dimitirios Ntzimanis; [2022]
    Keywords : Porepressureanalysis; upliftpressure; buttressdams; drainage; groutcur- tain; rockfractures; damsafety; RIDAS.;

    Abstract : Uplift pressure is one of the most dominant forces on a dam structure. Difference in head water and tail water creates a hydraulic gradient resulting an upward oriented pressure called uplift pressure, which reduces the dam safety against sliding. READ MORE

  4. 18. Methane and Carbon Dioxide Emissions From Three Smallscale Hydropower Stations in South of Sweden

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Edevardt Johan Danielsen; Alexandra Jonsson Valderrama; [2022]
    Keywords : Hydropower; Reservoir; Freshwater; automated Flux chambers; Emissions; Ebullition; Diffusion; Greenhouse gases; GHGs; Methane; CH4; Carbon dioxide; CO2; Dissolved oxygen; DO; Variability; Spatial; Temporal; Dissolved inorganic carbon.; Vattenkraft; Reservoar; Sötvatten; automatiserade Fluxkammare; Utsläpp; Ebullition; Diffusion; Växthusgaser; GHHs; Metan; CH4; Koldioxid; CO2; Löst syre; DO; Variabilitet; Rumslig; Temporal; Löst oorganiskt kol.;

    Abstract : Over the past decades, evidence show that the anthropogenetic greenhouse gases (GHG) emissions of carbon dioxide (CO₂) and methane (CH₄) are the main drivers behind global warming and are becoming stronger. Globally, hydropower is among the main sources of renewable energy and the popular notion that hydropower electricity is carbon neutral has been under debate as evidence from measurements in different regions of the globe show significant and highly variable carbon emissions from hydropower reservoirs. READ MORE

  5. 19. Future Nordic Grid Frequency Quality : A quantitative simulation study of current and potential frequency control methods with emphasis on synthetic inertia

    University essay from Uppsala universitet/Elektricitetslära

    Author : Emil Arvidsson; [2021]
    Keywords : grid frequency; synthetic inertia; frequency control; power grid; hydro power;

    Abstract : The power grid faces stability problems due to loss of inertia. The ancillary services balancing the system must be improved to maintain stability. READ MORE

  6. 20. COMPUTATIONAL FLUID DYNAMICS MODELING FOR BENT SPILLWAY CHANNEL : Numerical validation of a small scale physical model

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Mikael Björnfot; [2020]
    Keywords : Energy; CFD; Hydropower plant; Energi; Vattenkraft;

    Abstract : Hydropower plants with spillways exposed to high pressures because of large discharges can result in a dam failure which ultimately results in devastating consequences. Therefore properly designed and constructed spillways are important. READ MORE