Sökning: "refrigeration"

Visar resultat 6 - 10 av 138 uppsatser innehållade ordet refrigeration.

  1. 6. Resilient cooling technologies : Simulation study to determine the cooling capacity in old residentialbuildings located in mid-Sweden

    Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Ali Talib Ali; [2022]
    Nyckelord :cooling; cooling demand; absorption chiller; absorption refrigeration; district cooling; primary energy; resilience; residential buildings; old buildings; cooling capacity.;

    Sammanfattning : The Long-term changes in the climate conditions have increased the need foradequate thermal comfort systems. These alternations influence extremeevents, which their intensity and frequency have increased over the past years.Moreover, this study focuses on space cooling and parameters that the systemshould have to be considered as resilient. LÄS MER

  3. 7. Analysis of Single Echelon Logistics Model for Delivering Temperature Sensitive E-groceries in Cities using Electric Vehicle

    Master-uppsats, KTH/Industriell produktion

    Författare :Harivignesh Narayanasamy; [2022]
    Nyckelord :Electromobility in last mile; E-commerce; Agent-based simulation; Urban logistics; Supply chain in Sweden; Temperature sensitive e-groceries; Elektromobilitet på sista milen; E-handel; Agentbaserad simulering; Stadslogistik; Leveranskedja i Sverige; Temperaturkänsliga e-livsmedel;

    Sammanfattning : With the increase in the growth of the e-commerce sector since the past decade, the pressure has been progressively more applied to the operations and supply chain. As the pandemic has pushed the companies to provide services at the customer doorstep due to the difficulties in accessing services from brick-and-mortar stores, the logistical operation of the companies is continuously put under pressure. LÄS MER

  4. 8. Energieffektivisering av livsmedelsbutik

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Linnea Casemyr; [2022]
    Nyckelord :Värmeåtervinning; IDA ICE; CO2-kylsystem; solceller; tilläggsisolering;

    Sammanfattning : The construction sector today accounts for 20 precent of Sweden's climate impact and 40 percent of energy use. This purpose of this study is to identify the most effective measures to reduce the grocery store's energy needs. LÄS MER

  5. 9. 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

  7. 10. Heat Export from Supermarkets : Refrigeration Systems Field Measurements and a Techno-economic Analysis

    Master-uppsats, KTH/Energiteknik

    Författare :Julia Linnea Hildur Almebäck; Rebecka Magnius; [2022]
    Nyckelord :Heat Recovery; Heat Export; Supermarkets; Refrigeration Systems; CO2 Transcritical Booster Systems; Energy Efficiency; Värmeåtervinning; värmeexport; livsmedelsbutiker; kylsystem; CO2 transkritiskt boostersystem; energieffektivitet;

    Sammanfattning : Supermarkets have a high energy demand where almost half of the energy is used within the refrigeration system. The refrigeration system utilises a cycle where heat is taken and rejected. The rejected heat could be recovered and utilised for other purposes, such as covering internal heating demand or be exported to other facilities. LÄS MER