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Visar resultat 1 - 5 av 19 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Experimental evaluation of advanced features of a modern heat pumping system

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

    Författare :Xinyu Liu; [2022]
    Nyckelord :;

    Sammanfattning : The aim of this study is to investigate all the advanced features in refrigeration system built in Division of Applied Thermodynamics and Refrigeration using CO2 as refrigerant. The main functions and features of the refrigeration system is explained and tested thoroughly and the components are analyzed and evaluated. LÄS MER

  3. 2. 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

  4. 3. Coupling of Nuclear Power Generation with Greenhouse Gas Capture Technology

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Sofia Bellgren; Isabel Sondén; [2021]
    Nyckelord :;

    Sammanfattning : In order to stop the escalating global warming, humankind rapidly needs to develop and implement technology to lower the level of carbon dioxide in the atmosphere. Today there are methods to capture CO2 directly from the atmosphere (DAC); the problem lies in how to power them in a fossil-free and cost-attractive way. LÄS MER

  5. 4. CO2 Refrigeration withIntegrated Ejectors : Modelling and Field Data Analysis ofTwo Ice Rinks and Two Supermarket Systems

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

    Författare :SIMON FEHLING; [2021]
    Nyckelord :Vapor Ejector; Liquid Ejector; Field Data Evaluation; Modelling; Refrigeration; CO2; Ice Rink; Supermarket; Heat Recovery; Ångejektor; Vätskeejektor; Fältmätdata; Modellering; Kylteknik; CO2; Isbana; Livsmedelsbutik; Värmeåtervinning;

    Sammanfattning : With the increasing importance of CO2 as natural refrigerant with low Global Warming Potential(GWP) ejectors have been used in a number of recent installations to recover expansion work atthe high operating pressures of these systems. In colder climates, this is particularly seen in combinationwith heat recovery due to the high compressor discharge pressures. LÄS MER

  7. 5. Formverktyg med integrerade utstötare för kompositproduktion

    Kandidat-uppsats, Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Författare :Martin Nilsson; Jonatan Sandquist; [2019]
    Nyckelord :;

    Sammanfattning : Elektronisk utrustning som är placerade utomhus behöver väderskyddas. Detta kan göras med hjälp av antennskydd så kallade radomer som monteras på den elektroniska utrustningen. LÄS MER