Essays about: "double efficiency"

Showing result 21 - 25 of 113 essays containing the words double efficiency.

  1. 21. E-Band SPDT RF Switch for a Class F PA in III-V Nanowire MOSFET Technology

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Rungeng Xu; [2022]
    Keywords : E-band; III-V Nanowire MOSFET; RF Switch; Class-F PA; Technology and Engineering;

    Abstract : This project designs an RF switch operating in E-band to provide a transmit path from a Class-F power amplifier (PA). The basic RF switch is based on the single-pole double-throw (SPDT) topology using shunt transistor switches and two λ/4 transmission line. READ MORE

  3. 22. Gate driver solutions for high power density SMPS using Silicon Carbide MOSFETs

    University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

    Author : Farhan Akram; [2021]
    Keywords : SiC MOSFETs; Gate drivers; DC-DC converter; High power and efficiency power supplies;

    Abstract : Discrete silicon carbide (SiC) power devices have unique characteristics that outpace those of silicon (Si) counterparts. The improved physical features have provided better faster switching, greater current densities, lower on-resistance, and temperature performances. READ MORE

  4. 23. Heat Transfer Analysis on the Applications to Heat Exchangers

    University essay from

    Author : Raghu Lakshman Gundra; Jagadeesh reddy Medapati; [2021]
    Keywords : CFD anlysis; Heat exchangers; Heat transfer analysis; Heat equation temperature; Temperature equilibrium.;

    Abstract : A heat exchanger is a device used to transfer thermal energy between two or more fluids, at different temperatures in thermal contact. They are widely used in aerospace, chemical industries, power plants, refineries, HVAC refrigeration, and in many industries. READ MORE

  5. 24. Modeling BOD removal in free watersurface constructed wetlands with variable residence time-based methods

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Degefu Yohannes Sebro; [2021]
    Keywords : BOD removal; Free water-surface constructed wetlands; VART-BOD; models; dynamic diffusion zone; Technology and Engineering;

    Abstract : Constructed wetlands (CWs) have been applied for several years in the removal process pollutants from secondary treatment plants and stormwater. In this paper, the Variable Residence Time (VART) model for solute transport in streams was extended to simulate the BOD removal process in free water surface flow constructed wetlands (FWS CWs). READ MORE

  6. 25. Energy Performance, LCC and LCA Analysis of Renovation of Residential Buildings

    University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Han Wang; [2021]
    Keywords : Building energy demand; building renovation; insulation; windows; ventilation; heat pump; photovoltaic; cost; global warming potential; Technology and Engineering;

    Abstract : This study conducted an evaluation of the energy performance of a building complex located in Lund. Since the complex has a great need for renovation, five renovation measures were proposed. READ MORE