Sökning: "Local exhaust ventilation"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Local exhaust ventilation.

  1. 1. Åtgärder för energieffektivisering av vanliga småhus - En teoretisk fallstudie av en 70-talsvilla

    Kandidat-uppsats, Lunds universitet/Avdelningen för Byggnadsfysik

    Författare :Elin Moberg; Oscar Lugnegård; [2023]
    Nyckelord :70-tal; Renovering; VIP-Energy; Energi; Technology and Engineering;

    Sammanfattning : The construction and service sector currently accounts for over one-third of Sweden's total energy consumption. Energy issues are at the forefront, and society is striving for more sustainable development. At the same time, electricity prices are increasing, leaving many households with expensive bills for heating their houses. LÄS MER

  3. 2. 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

  4. 3. Lönsamheten för energiåtervinning i ventilation Kv. Bordsgossen : Undersökning kring lönsamheten av att installera energiåtervinning i ett 60-tals flerbostadshus

    M1-uppsats, Högskolan i Gävle/Energisystem

    Författare :Robin Säker; [2017]
    Nyckelord :Ventilation; Heat pump; Heat exchanger; Energy-efficiency; Ventilation; Frånluftsvärmepump; Värmeväxlare; Energieffektivisering; Energianvändning;

    Sammanfattning : Sedan oljekrisen på 1970-talet har västvärlden strävat efter att hitta energieffektiva     metoder för uppvärmning i fastigheter. I EU står bostadssektorn för ca 40% av det totala energibehovet och den enskilt största delen i människans ekologiska fotavtryck är koldioxidutsläpp, främst via förbränning av fossila bränslen där energisektorn historiskt stått för en stor del av dess utsläpp. LÄS MER

  5. 4. Ventilation efficiency measurements - a comparison between three supply air methods

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Författare :Max Henriksson; Henrik Nilsson; [2016]
    Nyckelord :Ventilation efficiency; air exchange efficiency; local ventilation index; mean age of air; comparison; mixed ventilation; displacement ventilation; Technology and Engineering;

    Sammanfattning : This study compares the two traditional ventilation methods ; mixed ventilation and displacement ventilation, with a new type of dif fuser which attempts to solve the problem with blockage of the diffuser for the displacement ventilation. This new diffuser called Airshower is a product developed by Airson engineering AB whom is also the company where all simulations and tests for this study were performed in a built office space. LÄS MER

  7. 5. H'air : Frisörers arbetsmiljö

    Kandidat-uppsats, Umeå universitet/Designhögskolan vid Umeå universitet

    Författare :Jon Sommarström; [2015]
    Nyckelord :Frisör; Arbetsmiljö;

    Sammanfattning : In the hairdressing profession you are every day han- dling dangerous chemicals. These chemicals are found in products they use for dyeing, bleaching and perming hair. In recent years it has become more popular then ever to change ones hair colour. This has increased the exposure to chemicals for the hairdressers. LÄS MER