Essays about: "Solar Energy"

Showing result 21 - 25 of 794 essays containing the words Solar Energy.

  1. 21. Passivation of Gallium Arsenide Nanowires for Solar Cells

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Austin Irish; [2019]
    Keywords : nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

    Abstract : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. READ MORE

  2. 22. Evaluation of a solar powered water pumping system in Mutomo, Kenya : Comparison between a submersible induction motor and a PMSM system

    University essay from Uppsala universitet/Elektricitetslära

    Author : Gabriel Båverman; Edris Tavoosi; [2019]
    Keywords : Submersible motor; solar powered water pumping system; PMSM; induction motor; borehole;

    Abstract : An existing solar-powered water pumping system located in Mutomo, Kenya has beenevaluated in this paper. The requirement for this system is to produce a minimum of25m³ water per day throughout the year. READ MORE

  3. 23. Propane Heat Pump Modelling and Monitoring for System Control Analysis

    University essay from KTH/Tillämpad termodynamik och kylteknik

    Author : Fernando Mengod Bautista; [2019]
    Keywords : ;

    Abstract : The objective of this master thesis was the performance analysis of a non-conventional heating system layout based on a propane heat pump unit. The objective had been pursued by monitoring and modelling the system. First, the project focused on monitoring the system, since for a correct modelling it was necessary to have all the data of the system. READ MORE

  4. 24. Energy Harvesting in Wireless Sensor Networks

    University essay from Uppsala universitet/Signaler och System

    Author : Erik Persson; [2019]
    Keywords : energy harvesting; contiki;

    Abstract : Over the past few years, the interest of remote wireless sensor networks has increased with the growth of Internet of Things technology. The wireless sensor network applications vary from tracking animal movement to controlling small electrical devices. READ MORE

  5. 25. The electricity demand andsupply in El Espino : Alternatives for diversification of renewabletechnologies

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik; KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Jessica Granqvist; Lily Gao; [2019]
    Keywords : Hybrid system; wind turbine; solar PV; optimization; rural electrification; Hybridsystem; vindturbin; sol PV; optimisering; landsbyggdselektrifiering;

    Abstract : The use of alternative fuels, particularly renewable energy sources, has been an important strategy to achieve greenhouse gas emission reductions. In Bolivia, many rural areas struggle with an unreliable power supply. READ MORE