Essays about: "water curtain"

Showing result 1 - 5 of 7 essays containing the words water curtain.

  1. 1. Rening och rekreation : ett gestaltningsförslag för en dagvattendamm i Tallstråket med flytande våtmarker

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Elvira Jubel; [2023]
    Keywords : Dagvattendamm; rekreation; flytande våtmarker; Tallstråket; dagvattenhantering; rening; metaller; föroreningar; gestaltning;

    Abstract : Med ett förändrat klimat och städer som förtätas och hårdgörs ställs högre krav på dagvattenhantering. I städer som förtätas prioriteras även blå- och grönytor ofta bort, och invånarnas möjligheter till rekreation minskar. READ MORE

  3. 2. Water born cooling of closed greenhouses : An enclosed vertical water curtain cooling system

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Ahmad Kamal; [2022]
    Keywords : Greenhouses; Water born cooling; Enclosed water curtain; radiative cooling; Surplus heat energy;

    Abstract : The greenhouses play a key role in food sustainable production, the purpose of the greenhouses is to make an artificial suitable environment to grow different kinds of plants. The cost of energy used in the greenhouses to ensure the optimum temperature, humidity, and CO2 concentration, makes up a large part of the final cost of food. READ MORE

  4. 3. 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

  5. 4. Bubble curtains with vertical tubes : A way to deter fish from hydro power intakes

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

    Author : Gustav Molin; [2019]
    Keywords : Bubble curtain hydro power intakes fish salmon eel barrier screen deter; vattenkraft bubbelridå ridå bubblor lax ål fisk;

    Abstract : This project was performed on assigment of Vattenfall R&D in Älvkarleby. The project was a first step in evaluating whether bubble curtains with vertical tubes could be suitable for diverting fish from hydro power intakes into fish passages. READ MORE

  6. 5. Experimental Assessment of Contact Erosion in Embankment Dams with Glacial Till Core

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Chinmoy Pattanaik; [2018]
    Keywords : ;

    Abstract : Contact erosion is a type of  internal erosion which develops at the boundary between two varying soil layers inside a dam body under the condition of tangential water flow inside the coarser soil parallel to the boundary. As the behaviour of foundation is unknown as the grout curtain starts eroding after a couple of years. READ MORE