Essays about: "ishall"

Showing result 1 - 5 of 7 essays containing the word ishall.

  1. 1. 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

  3. 2. On Development and Optimization of Energy Management System (EMS) for Battery Energy Storage System (BESS) : Providing Ancillary Services

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Hamza Shafique; [2020]
    Keywords : ;

    Abstract : The battery energy storage systems (BESS) installed standalone and with solar photovoltaic installations can be used beyond just storing excess generated electricity from the solar panels. The BESS can be intelligently managed by an Energy Management System (EMS) that uses the BESS resource for multiple ancillary services. READ MORE

  4. 3. Geothermal function integration in ice rinks with CO2 refrigeration system

    University essay from KTH/Tillämpad termodynamik och kylteknik

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

    Abstract : 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. READ MORE

  5. 4. Identification of waste heat sources in Uppsala - with potential use in Bergsbrunna as a case study

    University essay from KTH/Energiteknik

    Author : Malin Frisk; Elise Ramqvist; [2018]
    Keywords : ;

    Abstract : Reducing energy losses within the energy system is essential for a sustainable future. Waste heat usage could be a part of an increased energy efficiency and a sustainable use of resources. Uppsala Municipality aims to become a climate positive municipality in 2050, with negative net emissions of CO2. READ MORE

  6. 5. Energy Usage in Ice Rink Resurfacing

    University essay from KTH/Energiteknik

    Author : Roni Kaya; [2017]
    Keywords : ;

    Abstract : Ishallar kräver stora mängder energi för sin verksamhet. Undersökningar har visat att en typisk ishall i Sverige använder ca 1 000 MWh per år. Data från de mest effektiva ishallarna har visat att en väl utformad ishall kan nå en energiförbrukning på mindre än 500 MWh per år, vilket ger en stor potential för energisparande åtgärder. READ MORE