Essays about: "heat pump system control"

Showing result 6 - 10 of 40 essays containing the words heat pump system control.

  1. 6. Technoeconomical evaluation of small-scale CO2 liquefaction using Aspen Plus

    University essay from KTH/Kemiteknik

    Author : Maja-Stina Svanberg Frisinger; [2021]
    Keywords : Carbon capture and storage CCS ; carbon dioxide; carbon neutral; production costs; pulp and paper mills; Avskiljning och lagring av koldioxid CCS ; koldioxid; koldioxidneutral; produktionskostnader; massa och pappersbruk;

    Abstract : Syftet med den här studien är att göra en teknoekonomisk utvärdering av processer för förvätskning av CO2 med hjälp av Aspen Plus. Ett flertal förvätskningsprocesser från tidigare studier jämfördes och från dessa valdes två förvätskningsprocesser ut för fortsatta studier och simuleringar. READ MORE

  3. 7. Control Design for an Energy-Sharing Module of Next-Generation Thermal Energy System ectogrid™

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Lisa Korsell; Tuva Ydén; [2021]
    Keywords : Technology and Engineering;

    Abstract : Today, heat and electricity production are two main sources of greenhouse gas emissions. A big share of the overall energy consumption is used to provide buildings with heating and cooling. Smart-energy solutions of heating and cooling could therefore be a more sustainable solution contributing to the green transition of the energy system. READ MORE

  4. 8. Performance Evaluation of Ground Heating and Cooling Systems - Long-term performance measurements of two case buildings

    University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Hao Liu; Hongyi Zhang; [2020]
    Keywords : Ground source heat pump GSHP ; System performance; Long-term monitoring; Geothermal; Borehole heat exchangers; Office building; Uncertainty analysis; Deep Green Cooling; Free cooling; Heating; Cooling; Technology and Engineering;

    Abstract : Geothermal energy is one of the oldest and most sustainable energy sources and has been used for thousands of years. The temperature of the ground at shallow depth is fairly constant, above the air temperature in winter and lower than the ambient temperature in summer. READ MORE

  5. 9. 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

  6. 10. Techno-economic analysis of demand flexibility from heat pumps for multi-family buildings in Sweden based on two case studies

    University essay from KTH/Energiteknik

    Author : Hsin-Ting Ko; [2020]
    Keywords : Demand flexibility; Heat pump; IDA ICE; Smart grid; Thermal comfort; Thermal inertia; Bottom-up simuleringsmodell; efterfrågeflexibilitet; Demand response; energiteknologi; slutanvändarbeteende; grön byggnad; VVS-systemkontroll; värmepump; IDA ICE; smart nät; termisk komfort; termisk tröghet;

    Abstract : Sweden is undergoing energy transition to become a zero-carbon economy with electricity production aims at 100% from renewable resources by 2040. Sweden also has a national goal to have fossil-free vehicle fleet by 2030. The increasing share of intermittent renewable resources creates growth in mismatches between electricity supply and demand. READ MORE