Essays about: "importance of Dams"

Showing result 6 - 10 of 18 essays containing the words importance of Dams.

  1. 6. Storm water treatment in a multi-step system compared to a single-step system

    University essay from SLU/Dept. of Soil and Environment

    Author : Maria Schoeps; [2017]
    Keywords : storm water; storm water treatment; open storm water system; storm water dams; multi-step treatment; StormTac; pollutant load;

    Abstract : Urban areas are expanding at an increasing pace around the world as well as surfaces with impervious layers, such as streets and rooftops. Precipitation, melt water and water from human activities, which temporarily flow on these surfaces are defined as storm water. READ MORE

  2. 7. Numerical analyses of concrete buttress dams to design dam monitoring

    University essay from KTH/Betongbyggnad

    Author : Daniel Svensen; [2016]
    Keywords : Concrete; buttress dams; thermal effects; finite element analysis; instrumentation; alarm values; alert values; Betong; lamelldammar; termiska effekter; finit element analys; intstrumentering; larmvärden;

    Abstract : Old concrete buttress dams are sensitive to cracking if exposed to large temperature variations. The cracks can make dams sensitive to failure, depending on the size and location of the cracks. These problems can be overcome by lowering the temperature variations and stabilizing the dams. READ MORE

  3. 8. Riparian vegetation responses to hydropeaking : Experimental study on germination and performance of plants along rivers regulated by hydropower dams in northern Sweden

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Emelie Fredriksson; [2016]
    Keywords : Hydropeaking; riparian vegetation; germination; survival; performance; phytometer; restoration; mitigation;

    Abstract : Riparian vegetation is one of the most complex and abundant ecosystems in the world and it provides important ecosystem services. These services are affected by electricity production from hydropower dams. Hydropower accounts for 16% of the global electricity production and almost 50% in Sweden. READ MORE

  4. 9. Safety Analysis of Longtan High Dam Considering the Construction Process

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

    Author : Henrik Hy; Viktor Hällqvist; [2016]
    Keywords : Longtan Dam; Gravity Dam; Stress distribution; Strain distribution; Distribution of Yield areas;

    Abstract : To manage China’s growing demands of electricity, more and larger dams could be a part of the solution. It is important to evaluate and perform safety analysis for existing dams, in order to improve our understanding and knowledge about future dams. READ MORE

  5. 10. Influence of Fluid Structure Interaction on a Concrete Dam during Seismic Excitation : -Parametric analyses of an Arch Dam-Reservoir-Foundation system

    University essay from KTH/Betongbyggnad

    Author : Rikard Hellgren; [2014]
    Keywords : seismic; fluid-structure interaction; arch dam; concrete; finite element analysis; jordbävning; fluid-struktur interaction; valvdamm; betong; finit element analys;

    Abstract : The aim of this study is to investigate how Fluid-Structure interaction is included in numerical earthquake analyses of dams. The base for this project is theme A from the 12th international benchmark workshop on numerical analysis of dams, which was held in October 2013. READ MORE