Sökning: "kylteknik"

Visar resultat 1 - 5 av 152 uppsatser innehållade ordet kylteknik.

1. 1. Status Mapping of tank to grave management of Low-GWP refrigerants.

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

   Författare :Sandra Parra Gimeno; [2023]
   Nyckelord :Refrigerant; Blends; Synthetic low-GWP refrigerant; Natural refrigerant; Global Warming Potential GWP ; Tank-to-grave; Interviews.; Köldmedier; Blandning; Globalt uppvärmningspotential GWP ; Låg-GWP köldmedier; Naturligt köldmedier; installation till destruktion; Intervjuer.;

   Sammanfattning : Refrigeration plays a vital role today in various residential, commercial, and industrial processes, requiring refrigerants to facilitate the cooling or heating processes. Over time, refrigerants have undergone significant changes to meet technological, social, environmental, and economic needs. LÄS MER

3. 2. Köldmedieläckage i kylanläggningar : En utredning om alternativa metoder för att detektera läckage

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

   Författare :Christian Westerberg; Henric Gustavsson; [2021]
   Nyckelord :Kylteknik; kylanläggning; läckage; läckagedetektering; köldmedium;

   Sammanfattning : Commercial refrigerant industry is one of the biggest contributing factors toglobal warming according to a study by Mota-Babiloni et al. (2015). Studies have shown that emissions of fluorinated greenhouse gases' effect on global warming can increase from 1.3% (2004) to 7. LÄS MER

4. 3. 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

5. 4. Study of passive design and slab cooling in adaptation to climate change of a modern residential building in Stockholm

   Master-uppsats, KTH/Hållbara byggnader

   Författare :Sofia Elpasidou; [2020]
   Nyckelord :Climate change; future-ready buildings; passive design; slab cooling; thermal comfort; energy use; building performance; Klimatförändringen; framtidsfärdiga byggnader; passiv design; golvkyla; termisk komfort; energianvändning; byggnadsprestanda;

   Sammanfattning : The impact on the built environment due to the forecasted climate change was presented by the authorities more than one decade ago, but the actions from the building industry to adapt buildings for a changed climate are still lacking. The purpose of this study is to identify a suitable cooling technique for a modern residential building in a future warmer climate in order to maintain thermal comfort but also energy efficiency. LÄS MER

7. 5. Geothermal function integration in ice rinks with CO2 refrigeration system

   Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

   Författare :Juris Pomerancevs; [2019]
   Nyckelord :Ice rinks; CO2 refrigeration system; geothermal energy; heat recovery.; Ishallar; CO2 kylsystem; geoenergi; värmeåtervinning;

   Sammanfattning : Ice rinks are energy intense industrial applications. A typical single sheet ice rink in Sweden uses about 1000 MWh/season. A state-of-the art ice rink systems can use less than 500 MWh/season, indicating the potential for improvements. LÄS MER