Sökning: "mechanical heat recovery"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden mechanical heat recovery.

  1. 1. Reduction of Set-recovery of Surface densified Scots Pine by Furfuryl Alcohol

    Master-uppsats, Luleå tekniska universitet/Träteknik

    Författare :Lei Han; [2019]
    Nyckelord :surface densification; set-recovery; hardness; furfuryl alcohol;

    Sammanfattning :  For wood products such as flooring and worktop, only one surface is normally exposed in their use, and the mechanical properties like hardness and wearing resistance of that surface is then important. Since mechanical properties are strongly related to the density, surface densification, i.e. LÄS MER

  2. 2. Fjärrvärme och frånluftsvärmepump : Systemets lönsamhet och primärenergitalets inverkan

    Kandidat-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Tim Wennberg; [2019]
    Nyckelord :district heating; district heating tariff; exhaust air heat pump; combined heating system; cost efficiency; primary energy; primary energy factor; fjärrvärme; fjärrvärmetaxa; frånluftsvärmepump; kombinerad värmeanläggning; kostnadseffektivisering; primärenergi; primärenergifaktor;

    Sammanfattning : Kombinationen av fjärrvärme och frånluftsvärmepump (FVP) har blivit allt vanligare i Sverige. Detta kombinerade värmesystem är väl lämpat för att reducera energianvändningen i befintliga fastigheter med mekanisk frånluftventilation som saknar värmeåtervinning. LÄS MER

  3. 3. Energioptimering av SSAB:s kraftverk i Oxelösund : Pinchanalys på det befintliga ångsystemet

    Master-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Javad Fayazi; [2018]
    Nyckelord :energioptimering; pinchanalys; elproduktion; kraftverket; fjärrvärme;

    Sammanfattning : In Oxelösunds there is a complete production facility, from metallurgy with the production of steel to rolling, formatting and hardening of sheet metal. SSAB Oxelösunds is producing world-famous trademarks such as Hardox, which is considered one of the world’s most advanced steel. LÄS MER

  4. 4. Economic Performance Assessment of Three Renovated Multi-Family Houses with Different HVAC Systems

    Master-uppsats, Högskolan Dalarna/Energiteknik

    Författare :Alaa Khadra; [2018]
    Nyckelord :HVAC systems; economic assessment; air heat pump; mechanical heat recovery; LCCA; life cycle cost analysis; miljonprogrammet.; HVAC systems; economic assessment; air heat pump; mechanical heat recovery; LCCA; life cycle cost analysis; miljonprogrammet.;

    Sammanfattning : Since the building sector is responsible for 40% of the energy consumption and 36% of CO2 emissions in the EU, the reduction of energy use has become a priority in this sector. The EU has adopted several policies to improve energy efficiency. LÄS MER

  5. 5. Evaluation of an Energy System for multi-family houses with Combination of Exhaust Air Heat Pump and PV : Case Study: Demonstration Building of The EU Energy Matching Project, Sweden-Ludvika

    Master-uppsats, Högskolan Dalarna/Energiteknik

    Författare :Mohammad Azad; [2018]
    Nyckelord :EnergyMathcing project; Energy system; Novel heating technologies; On-site Renewable Energy; Low temperature heating system; combined solar technologies and heat pump; photovoltaic and exhaust air heat pump; nearly zero energy buildings; simulation of building and energy system;

    Sammanfattning : This thesis investigated application of the heat recovery ventilation using an exhaust air heat pump and a roof top photovoltaic (PV) system for a group of three multi-family houses located in Ludvika, Sunnansjö. The buildings in the existing condition have mechanical ventilation and a centralized heating system consists of a pellet boiler as the main source and an oil boiler as back up. LÄS MER