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Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. Status Mapping of tank to grave management of Low-GWP refrigerants.

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

    Author : Sandra Parra Gimeno; [2023]
    Keywords : Refrigerant; Blends; Synthetic low-GWP refrigerant; Natural refrigerant; Global Warming Potential GWP ; Tank-to-grave; Interviews.; Köldmedier; Blandning; Globalt uppvärmningspotential GWP ; Låg-GWP köldmedier; Naturligt köldmedier; installation till destruktion; Intervjuer.;

    Abstract : Refrigeration plays a vital role today in various residential, commercial, and industrial processes, requiring refrigerants to facilitate the cooling or heating processes. Over time, refrigerants have undergone significant changes to meet technological, social, environmental, and economic needs. READ MORE

  3. 2. 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. 3. Effects of Heat Transfer Fluid from District Heating Networks on Activated Sludge : A respirometric analysis using a dilution series to assess disruption of biological treatment processes in wastewater treatment facilities

    University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Author : Victor Bergseije; [2014]
    Keywords : activated sludge; respirometry; district heating; industrial waste water;

    Abstract : District heating has a long standing tradition in Sweden and today it is the most common way of producing and transporting heat. A District heating system (DH system) is divided into three parts: a production facility, distribution network (DH network) and one more heat stations. READ MORE

  5. 4. Gaining Competitiveness Trough Understanding Critical Factors Affecting the Production System : A Case study in cooperation with GKN Driveline Köping AB

    University essay from Akademin för innovation, design och teknik

    Author : Jan-Peter Rosén; Kari Haukirauma; [2013]
    Keywords : production systems; production development; batch; one-piece flow; single piece flow; flow; lean; production; continuous flow; just-in-time; decision support; produktionssystem; produktionsutveckling; batch; enstycksflöde; flöde; lean; production; kontinuerligt flöde; just-in-time; beslutsunderlag;

    Abstract : Globalization and the increasing time to market have led to ever-higher requirements on the production systems. More than often the short-term thinking and the chase for profit lead to cheap quick fixes. READ MORE

  6. 5. Inhysningssystem för kalvar och ungdjur i större besättningar

    University essay from SLU/Dept. of Rural Buildings and Animal Husbandry [LBT]

    Author : Kristin Petersson; [2008]
    Keywords : inhysningssystem; kalv; ungdjur; rekryteringsdjur; stall; stallbyggnader;

    Abstract : In Sweden, there has been a continuous increase in the volume of housing construction for dairy cattle. Since 2004, the number of new, rebuilt and extended dairy cow houses undergoing preliminary inspection by the authorities has grown. READ MORE