Sökning: "low grade heat"

Visar resultat 21 - 25 av 36 uppsatser innehållade orden low grade heat.

  1. 21. Designing and Maximizing Switch-Mode Efficiency of MODPSU, the Modular Power Supply

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Niclas Arndt; [2016]
    Nyckelord :DC DC; SMPS; optimization; power supply; Technology and Engineering;

    Sammanfattning : This work is an investigation into practical design and loss minimization of DC/DC-switched power supplies, enabling cooler operation, smaller size, and additional or wider areas of use. There is an abundance of switch controller ICs on the market and a few of the manufacturers offer very sophisticated design tools that suggest operating parameters and grade components. LÄS MER

  3. 22. Slow pyrolysis in Brista : AN EVALUATION OF HEAT AND BIOCHAR PRODUCTION IN SWEDEN

    Master-uppsats, KTH/Energiteknik

    Författare :Erik Jonsson; [2016]
    Nyckelord :;

    Sammanfattning : This study is an analysis of the potential to have a slow pyrolysis power plant in Brista, Sweden. The study is investigating current technologies available and research and application of the pyrolysis products from the process. Pyrolysis has been known for over thousands of years. LÄS MER

  4. 23. Elproduktion från lågvärdig spillvärme med ny teknik; ECT-processen : Modellering och jämförelse med Organic Rankine Cycle

    Magister-uppsats,

    Författare :Sarah Larsson; Tamara Dragic; [2016]
    Nyckelord :;

    Sammanfattning : The constantly growing population in the world is putting more and more pressure on the earth and its natural resources. Meanwhile, the use of fossil fuels keeps creating carbon dioxide emissions that accelerates the global warming. LÄS MER

  5. 24. Modellering av inmatningscentral för småskalig värmetillförsel till fjärrvärmenät

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Henrik Johansson; Daniel Ivarsson; [2016]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The district heating sector is moving into a new era which brings lower temperatures in the heating network which in turn opens up for a more extensive use of low grade heat such as solar heat. This project aims to develop a dynamic simulation model for feeding centrals in order to be able to design and optimize systems for decentralized feeding regardless of heat source. LÄS MER

  7. 25. Solar assisted ground source heat pump system - modelling and simulation

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Mattias Ericsson; [2015]
    Nyckelord :Solar collectors; Heat pump; TRNSYS; modelling;

    Sammanfattning : The influence of control strategies and storage tank sizes on the system performance of a solar thermal assisted ground source heat pump(SAGSHP) installation has been investigated. The system investigated is in the design stage and will be implemented in the project Slottsholmen in Västervik, Sweden during 2015. LÄS MER