Essays about: "secondary heating system"

Showing result 1 - 5 of 20 essays containing the words secondary heating system.

1. 1. Life Cycle Assessment of Absolicon solar thermal collector field for district heating in Härnösand

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Ohm Ariyakhajorn; [2023]
   Keywords : Life Cycle Assessment; Solar Thermal Energy; District Heating System; Livscykelanalys; Solvärme; Fjärrvärmesystem;

   Abstract : Global energy consumption has been increasing continuously every year. Many energy sources are utilized. Conventional fossil fuels are not sustainable, and their environmental impacts are more apparent than ever before. For heating purposes, most of the heat still comes from combustion of both non-renewable and renewable energy sources. READ MORE

3. 2. 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

4. 3. 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

5. 4. Energy Performance Simulation of Different Ventilation Systems in Sweden and Corresponding Compliance in the LEED Residential Rating System

   University essay from Högskolan Dalarna/Energiteknik

   Author : Patrick Boyle; [2020]
   Keywords : HVAC; IDA ICE; LEED; demand-controlled ventilation; heat recovery ventilation; energy efficiency; energy simulation;

   Abstract : The importance of energy efficiency in the operation of the built environment is becoming increasingly important. Energy use in the building sector has exceeded both transportation and industry, while within buildings heating, ventilation, and air conditioning has the greatest share. READ MORE

6. 5. 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