Essays about: "closed cycle"

Showing result 1 - 5 of 46 essays containing the words closed cycle.

  1. 1. Development of a Nordic BWR plant model in APROS and design of a power controller using the control rods

    University essay from KTH/Fysik

    Author : Jonathan Al-Ani; [2021]
    Keywords : APROS; Dynamic process simulation; System code; Nuclear reactor; nuclear power; BWR; Boiling Water Reactor; closed cycle; steam cycle; one-dimensional flow; Westinghouse; control rods; APROS; Dynamisk processimulering; Beräkningsmodell; Kärnkraft; BWR; Kokvattenreaktor; ångcykel; en-dimensionell flödesmodell; Westinghouse; kontrollstavar;

    Abstract : In this master thesis an input-model of a Nordic BWR power plant has been developed in APROS. The plant model contains key systems and major thermohydraulic components of the steam cycle, including I&C systems (i.e. power, pressure, level and flow controls). READ MORE

  2. 2. Development Of Optimized Cost Models for Recycling and Remanufacturing - A Step Towards Circular Economy

    University essay from Lunds universitet/Industriell Produktion

    Author : Spuran Reddy Abbu; Badri Reddy Gade; [2021]
    Keywords : Circular Economy; Economy models; Recycling cost model; Remanufacturing cost model; EOL treatments; Metal recycling.; Technology and Engineering;

    Abstract : Resource consumption is becoming increasingly scarce with an increase in the global population. Due to the increased resource consumption, the current linear economy model is unsustainable in the way it operates. The limitations of the linear economic model have been at the forefront to aspire circular economy in practice. READ MORE

  3. 3. Closed ecological life support systems : cycling of carbon, nitrogen and water

    University essay from SLU/Dept. of Ecology

    Author : Hugo Persson; [2020]
    Keywords : closed ecological system; cycling; closure; life support; biosphere; CEEF; MELiSSA; Biosphere 2; bioregenerative; CELSS; environmental;

    Abstract : Materially closed life support systems containing biological components that provide atmosphere, food and water for a human crew has been investigated for use in space travel since the 1960s. The internal cycling of organic material is the essence of these systems and their design and function is the question at issue for this thesis, which has been conducted as a literature study. READ MORE

  4. 4. Concept Development of a New System for Drying Dishware : Degree project for Bachelor of Science in Innovation and Design Engineering

    University essay from

    Author : Ossian Bergman; [2020]
    Keywords : dishwasher; energy; usage; consumption; dishware; drying; effective; diskmaskin; torkning; disk; energi; användning; konsumtion; effektiv;

    Abstract : The Drying of dishware inside a dishwasher is the phase in the washing cycle that uses the most energy and is therefore the phase with most room for improvement as regards on energy usage. When drying the dishware through closed air circulation, it is the temperature of the final rinse that determines the heat available during the drying process. READ MORE

  5. 5. Circular Business Models for Electric Vehicle Lithium-Ion Batteries: An analysis of current practices of vehicle manufacturers in the EU and the potential for innovation at Volvo Group

    University essay from Lunds universitet/Internationella miljöinstitutet

    Author : Levke Albertsen; [2020]
    Keywords : circular economy; circular business models; business model innovation; lithium-ion batteries; electric mobility; Earth and Environmental Sciences;

    Abstract : With the transition towards an electrified vehicle fleet, lithium-ion batteries (LIBs) have come into focus for different stakeholders due to their high costs, resource, and energy demands for production as well as connected environmental concerns and supply risks. Circular economy (CE) strategies to slow and close resource loops and circular business models (CBMs) are discussed as solutions to these issues. READ MORE