Search for dissertations about: "Fredrik Eng Larsson"

Showing result 1 - 5 of 11 swedish dissertations containing the words Fredrik Eng Larsson.

  1. 1. Assessment of safety characteristics for Li-ion battery cells by abuse testing

    Author : Fredrik Larsson; Carl Fredrik Larsson; SP Elektronik.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; overcharge; Lithium-ion; toxic gases; abuse test; thermal runaway; short circuit; safety; battery; fire;

    Abstract : Despite the many advantages with lithium-ion batteries there can be disadvantages in form of safetyissues. In an abuse situation a Li-ion cell can undergo a thermal runaway releasing excessive heat,flammable and toxic gas emissions and eventually accompanied by dissembling/explosion and fire. READ MORE

  2. 2. Green Logistics through Modal Shift - exploring the role of the transport capacity contract

    Author : Fredrik Eng Larsson; Lunds universitet.; Lund University.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green logistics; modal shift; mode choice; capacity management; supply chain contracting; intermodal transport;

    Abstract : Popular Abstract in Swedish För att minska CO2-utsläppen från godstransporter har politiker i Europa under de senaste tio åren framhävt att det krävs ett skifte i transportslag för europeiska transporter, från flyg- och lastbilstransporter till mer miljövänliga tåg- och sjötransporter. Intermodala väg-järnvägstransporter, där en kombination av tåg och lastbil använts för att förflytta lösa standardiserade lastbärare (lastbilstrailer, lösflak eller ISO container), har framhävts som extra intressanta då järnvägens miljövänlighet kan kombineras med lastbilens flexibilitet och tillgänglighet. READ MORE

  3. 3. On the Incentives to Shift to Low-Carbon Freight Transport

    Author : Fredrik Eng Larsson; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-carbon transport; green logistics; sustainability; operations and the environment; supply chain management; incentive alignment;

    Abstract : The transport sector accounts for approximately 20% of EU-27 greenhouse gas (GHG) emissions, and 27% of U.S. GHG emissions. With the Kyoto Protocol, Sweden and several other nations have agreed to reduce these emissions. READ MORE

  4. 4. Lithium-ion Battery Safety - Assessment by Abuse Testing, Fluoride Gas Emissions and Fire Propagation

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Carl Fredrik Larsson; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fire; thermal runaway; gas emission; gas explosion; propagation; safety; abuse testing; Lithium-ion; cell case explosion; hydrogen fluoride;

    Abstract : Lithium-ion batteries offer high energy and power densities as well as long life time but have a more narrow stability window compared to other battery types and contain reactive and flammable materials. In case of overheating the battery cell can release gas (vent) and, at temperatures of about 150-200 °C, a so called thermal runaway can occur, that is a rapid self-heated temperature increase which is typically accompanied with a large release of smoke and gas, fire and a potential cell case explosion or gas explosion. READ MORE

  5. 5. Methods for Visually Guided Robotic Systems Matching, Tracking and Servoing

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Fredrik Larsson; Linköpings universitet.; Linköpings universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : This thesis deals with three topics; Bayesian tracking, shape matching and visual servoing. These topics are bound together by the goal of visual control of robotic systems. The work leading to this thesis was conducted within two European projects, COSPAL and DIPLECS, both with the stated goal of developing artificial cognitive systems. READ MORE