Essays about: "Solar Energy"

Showing result 16 - 20 of 800 essays containing the words Solar Energy.

  1. 16. A comparative study of ZnO i-layer deposited with ALD and PVD for CIGS solar cells

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Joel Johansson Byberg; [2019]
    Keywords : CIGS; ZnO; ZnMgO; solar cells; thin film; zinc oxide; window layer; ALD; PVD;

    Abstract : Two identified setbacks for CIGS based devices in order to obtain higher efficiency are parasitic absorption in the window layer structure and losses in open-circuit voltage due to bad interfaces. This study investigated how the performance of the solar cell is affected by depositing intrinsic ZnO (i-ZnO) and ZnMgO with atomic layer deposition (ALD) instead of the conventional sputtering. READ MORE

  2. 17. Introducing a central receiver system for industrial high-temperature process heat applications : A techno-economic case study of a large-scale CST plant system in a South African manganese sinter plant

    University essay from KTH/Kraft- och värmeteknologi; KTH/Kraft- och värmeteknologi

    Author : Maria Hallberg; Elin Hallme; [2019]
    Keywords : Solar energy; concentrating solar thermal; CST; central receiver system; CR; HelioPod; high-temperature process heat; manganese; business case; Solenergi; koncentrerad termisk solvärme; CST; soltorn; HelioPod; högtempererad processvärme; mangan; affärsmodell;

    Abstract : The objective of this thesis was to investigate the potential for introducing a concentrating solar thermal (CST) central receiver plant system based on flexible heliostats - HelioPods - to provide high-temperature process heat in industrial applications. A CST plant system was designed in MATLAB, optically simulated for three design days in the ray-tracing software Tonatiuh and further analyzed in MATLAB by interpolating the results for each hour of the year. READ MORE

  3. 18. Investigation of jets in the magnetosheath using Cluster measurements

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Annam Tanveer; [2019]
    Keywords : ;

    Abstract : With the help of the measurements made by Cluster spacecrafts, an investigation of fast plasma flowcalled jets in the magnetosheath has been made. The investigation covers a large statistical study ofjets with two definitions of jets and therefore two different approaches to detect jets.The study has been divided into three parts. READ MORE

  4. 19. Conjunctive Operation of Hydro and Solar PV Power with Pumped Storage at Kafue Gorge Power Station (Zambia)

    University essay from Högskolan Dalarna/Energiteknik

    Author : Elvis Nyirenda; [2019]
    Keywords : Photovoltaic; Hydro; Power; Storage; Pumped Hydro Storage; Zambia;

    Abstract : This report covers the work carried out to redesign the two existing conventional hydro power stations in Zambia on the Kafue river into the pumped storage facility with solar photovoltaic power so that security of supply and water conservation is achieved to reduce the power deficits during the dry and drought periods. The two stations are Kafue gorge upper power station (KGUPS) and Kafue gorge lower power station (KGLPS) with an installed capacity of 990 MW and 750 MW respectively. READ MORE

  5. 20. Development of a Simple and Cheap Equipment for monitoring the solar Irradiance on PV modules.

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Pablo Casanaba; [2019]
    Keywords : Photovoltaic; DC; DAQ system; photocurrent; operational amplifier; pyranometer; reference solar cell; photodiode; irradiance;

    Abstract : Increased use of renewable energies that is taking place all over the world is having a very important impact on the photovoltaic solar energy industry. This means of obtaining electrical energy is one of the most promising ones nowadays, thanks to the fact that it is a technology of easy installation and maintenance. READ MORE