Sökning: "refrigeration"

Visar resultat 16 - 20 av 138 uppsatser innehållade ordet refrigeration.

1. 16. Review and Design Adaptations of a SrCl2-NH3 bench-scale Thermochemical Heat Storage system

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

   Författare :Hjörtur Brynjarsson; [2021]
   Nyckelord :Thermochemical heat storage TCS ; SrCl2-NH3; system design; kinetics; absorption; desorption; octaammine; diammine; monoammine; pressure management; commissioning; Termokemisk värmelagring TCS ; SrCl2-NH3; systemdesign; kinetik; absorption; desorption; oktaammin; diammin; monoammin; tryckhantering; driftsättning;

   Sammanfattning : Thermochemical heat storage (TCS) is a thermal energy storage (TES) technology used to store thermal energy for later use. TCS can provide heating or cooling services from intermittently available thermal energy, often low grade waste heat. LÄS MER

3. 17. 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

4. 18. ManagementPractical Aspects of Aqua Ammonia as Secondary Refrigerant in Ice Rinks

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

   Författare :Jacqueline Pierri; [2021]
   Nyckelord :Ice rink; secondary refrigerant; refrigeration; refrigerant management; secondary fluid; natural refrigerant; aqua ammonia;

   Sammanfattning : The transition from fluorinated gases to natural refrigerants could be key to reducing the impacts of climate change. Ice rinks are energy-intensive buildings, with large heating and cooling demands. The pumping power required to move the secondary refrigerant typically accounts for a sizable amount of the energy use of the refrigeration system. LÄS MER

5. 19. Cooperation for Heat Recovery : A Case Study on Heat Utilization From a Supermarket Refrigeration System

   Master-uppsats, KTH/Energiteknik

   Författare :Edwin Andersson; [2021]
   Nyckelord :Heat recovery; cooperation; supermarket; refrigeration system; CO2; Värmeåtervinning; samverkan; livsmedelsbutik; kylsystem; CO2;

   Sammanfattning : The study looks at heat recovery of a refrigeration system in a supermarket where the heat was supplied to apartments in the same building. Such a system requires cooperation between the supermarket owner and the property owner, with both having different motives. LÄS MER

7. 20. Analysis of Energy Performance Indicators for Supermarket Buildings

   Master-uppsats, KTH/Energiteknik

   Författare :Abhay Menon Sreekandath; [2021]
   Nyckelord :;

   Sammanfattning : In the sector of food retail, supermarkets are common all over the world with their presence projected to increase further. They are also the most energy intensive amongst commercial spaces on an area basis, along with having direct emissions through refrigerant leakage. LÄS MER