Sökning: "Space heating and cooling"

Visar resultat 1 - 5 av 46 uppsatser innehållade orden Space heating and cooling.

  1. 1. Performance Analysis of CO2 Heat Pumps in Different Applications

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Jaykumar Thanggavelu; [2022]
    Nyckelord :CO2 Heat pump; COP; District heating; commercial buildings; residential buildings; field measurement data; Propane; Ammonia; R-134a; CO2 Värmepump; COP; Fjärrvärme; kommersiella byggnader; bostadshus; fältmätningsdata; Propan; Ammoniak; R-134a;

    Sammanfattning : This study focuses on researching the performance of CO2 heat pumps in different real-time applications and in some studies, it compares the performance to synthetic and other natural refrigerants based on heat pump data provided from buildings. The research on the performance of the CO2 heat pump is performed based on Sweden's climatic conditions. LÄS MER

  2. 2. Förändrad energianvändning i en kontorsbyggnad i Gävle till följd av covid-19-pandemin : En fallstudie

    Kandidat-uppsats, Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

    Författare :Erica Larsson Lundh; [2021]
    Nyckelord :energy consumption; building energy performance; office building; occupancy; covid-19; teleworking; energikonsumtion; energiprestanda; kontorsbyggnad; personlast; covid-19; distansarbete;

    Sammanfattning : Since COVID-19 was declared a pandemic by the World Health Organization(WHO) in March 2020, teleworking, or working from home, has been used to an increasing extent by companies and organisations all over the world. Evidence suggests that teleworking will become part of “the new normal”, why teleworking-related research will be of value in a long-term perspective. LÄS MER


    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Alejandro Manso Covarrubias; [2021]
    Nyckelord :Urban planning; daylight; solar access; Lund; Helsingborg; observations.; Technology and Engineering;

    Sammanfattning : Swedish cities are getting denser. People spend a lot of time indoors, it therefore becomes important to guarantee daylight availability and solar access in buildings, in order to save energy and ensure human well-being. However, this becomes important in the case of outdoor spaces as well. LÄS MER

  4. 4. Performance Evaluation of Ground Heating and Cooling Systems - Long-term performance measurements of two case buildings

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Hao Liu; Hongyi Zhang; [2020]
    Nyckelord :Ground source heat pump GSHP ; System performance; Long-term monitoring; Geothermal; Borehole heat exchangers; Office building; Uncertainty analysis; Deep Green Cooling; Free cooling; Heating; Cooling; Technology and Engineering;

    Sammanfattning : Geothermal energy is one of the oldest and most sustainable energy sources and has been used for thousands of years. The temperature of the ground at shallow depth is fairly constant, above the air temperature in winter and lower than the ambient temperature in summer. LÄS MER

  5. 5. Återladdningsförmågan hos en Bergvärmepump

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Felix Johansson; [2020]
    Nyckelord :;

    Sammanfattning : Geothermal energy that is being used for space heating with help of heat pumps is getting more and more common. In Sweden 2016, there was over 300 000 different facilities using geothermal energy with the help of bore hole heat exchangers, so called ground source heat pumps (GSHP). LÄS MER