Essays about: "the zero option."

Showing result 21 - 25 of 45 essays containing the words the zero option..

  1. 21. 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

  3. 22. Monovalent selective electrodialysis in greenhouses - An analysis of brackish groundwater and greenhouse wastewater treatment

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Georg Schücking; [2020]
    Keywords : desalination; water treatment; greenhouses; ED; MSED; monovalent selective electrodialysis; groundwater; sodium; nitrate; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

    Abstract : Water use in greenhouse can be optimized by switching to alternative sources of irrigation water and building zero-liquid discharge systems that recirculate greenhouse effluent. The use of brackish groundwater (BGW) has become a popular option for greenhouses that have adopted reverse osmosis (RO) to reduce the salinity of their source water. READ MORE

  4. 23. Eliminating zero-missing phenomenon in long, high voltage, underground cables

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

    Author : Agnes Linnet; [2019]
    Keywords : Underground cable; zero-missing phenomenon; switching transients; shunt reactors; underexcited generators; Underjordisk kabel; nollbristande fenomen; växlingstransienter; shuntreaktorer; underexiterad generatorer;

    Abstract : The maximum length of an high voltage underground cable (HV UGC) cable is oftenconstrained by the criterion that the cable cannot have more than 50% reactivepower compensation. If this limit is exceeded the current in the circuit breaker maynot have a zero crossing after energization, which is referred to as the zero missingphenomenon. READ MORE

  5. 24. Techno-economic Study of Hydrogen as a Heavy-duty Truck Fuel : A Case Study on the Transport Corridor Oslo – Trondheim

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

    Author : Janis Danebergs; [2019]
    Keywords : Hydrogen; heavy-duty transport; zero emissions; FCET; HRS; techno-economic analysis; TCO; LCOH; Vätgas; lastbilar; nollutsläpp; vätgaslastbil; teknisk ekonomisk analys; TCO; LCOH;

    Abstract : Norway has already an almost emission-free power production and its sales of zero-emission light-duty vehicles surpassed 30% in 2018; a natural next challenge is to identify ways to reduce emissions of heavyduty vehicles. In this work the possibilities to deploy Fuel Cell Electric Trucks (FCET) on the route Oslo-Trondheim are analyzed by doing a techno-economic analysis. READ MORE

  6. 25. Investigating the performance of hempcrete as an option for retrofitting masonry buildings

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

    Author : Henry Lanham; [2019]
    Keywords : Hempcrete; lime-hemp Miljöbyggnad; moisture safety; future climate; energy use; mould risk.; Technology and Engineering;

    Abstract : One fifth of the energy consumed by buildings in Sweden is by those built before 1945, many of them constructed from solid masonry walls. Improving their heating energy consumption is a challenge we must face in light of human’s impact on climate change as well as increasing energy costs. READ MORE