Essays about: "secondary refrigerant"

Showing result 1 - 5 of 7 essays containing the words secondary refrigerant.

1. 1. Comparative Analysis of Modern Energy Systems for Ice Rinks

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Pendar Hemati; [2023]
   Keywords : Ice rinks; refrigeration; heat recovery; CO2; ammonia; propane; Pistas de hielo; refrigeración; recuperación de calor; CO2; amoníaco; propano;

   Abstract : Ice rinks are highly energy-intensive commercial buildings with an average annual energy consumption of 1,000 MWh, most of it being used to cover the simultaneous heating and cooling demands. The aim of this thesis is to find the most energy efficient energy system for ice rinks by evaluating different system modifications and refrigerants. READ MORE

3. 2. ManagementPractical Aspects of Aqua Ammonia as Secondary Refrigerant in Ice Rinks

   University essay from KTH/Skolan för industriell teknik och management (ITM)

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

   Abstract : 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. READ MORE

4. 3. Aqua Ammonia as Secondary Fluid in Ice Rink Applications

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Brianna Kilberg; [2020]
   Keywords : Ice rink; secondary fluid; aqua ammonia; ammonia water; thermophysical properties; corrosion; pressure drop; pumping power; refrigeration;

   Abstract : Refrigerant management is crucial in the attempts to slow climate change. Emissions from the refrigeration sector are primarily due to poor management and unsafe destruction of refrigerants currently in circulation. Safe refrigerant management and improving system operating efficiency can result in a reduction of emissions. READ MORE

5. 4. Study of high flash point ethyl alcohol-based secondary fluids applied in Ground Source Heat Pumps systems

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Luis Enrique Carrion Domenech; [2019]
   Keywords : indirect refrigeration system; secondary fluid; flammability; alcohols; geothermal heat pump systems; properties.;

   Abstract : Ethyl alcohol (ethanol) as secondary fluids is very popular as heat transfer fluid for indirect refrigeration system with ground source heat pump systems (GSHP) in several countries such as Sweden, Norway, Switzerland, Finland and other European countries. There have been several researches about the future ofthe refrigeration sector, refrigerants and refrigeration systems. READ MORE

6. 5. SECONDARY FLUIDS USED IN INDIRECT REFRIGERATION SYSTEMS IN SWEDEN

   University essay from KTH/Tillämpad termodynamik och kylteknik

   Author : Patrick Javier Salom Munoz; [2015]
   Keywords : Secondary fluids; ground source heat pumps; indirect refrigeration system; regulations; Swedish market;

   Abstract : Interest in indirect (secondary) refrigeration systems has grown since the discovery of the negative effect of environmentally hazardous refrigerants and leakage problems from direct expansion systems. Among the positive effects of indirect systems are: decreased quantities of primary refrigerant, factory built units and confinement of refrigerant to the machine room. READ MORE