Displaying items by tag: Carhttp://travellertools.euSun, 26 Jun 2016 01:10:20 +0200Joomla! - Open Source Content Managementde-deMaking hydrogen usage more safehttp://travellertools.eu/index.php/get-in-contact/item/1533-making-hydrogen-usage-more-safehttp://travellertools.eu/index.php/get-in-contact/item/1533-making-hydrogen-usage-more-safeMaking hydrogen usage more safe

Making hydrogen usage more safe

ID: F1601-09

As a power provider, hydrogen inspires a great deal of enthusiasm and more than a little wariness. a task addressed security problems related to the usage of hydrogen technologies. Hydrogen fuel cell (HFC) technology will initially be commercialised for market-ready applications such as backup energy supply, portable power generation and powering of materials handling automobiles. These programs generally need, by nature or for safety reasons, that hydrogen systems be used inside. However, current regulations, codes and standards (RCSs) are extremely incomplete regarding the practical requirements of security requirements inside. Addressing the safe indoor usage of HFC systems for early markets had been the primary objective of the project. The project desired to supply scientific and engineering understanding for indicating cost-effective means to control dangers, and to develop state-of-the-art security guidelines. It addressed understanding gaps regarding interior hydrogen accumulation, vented deflagration and under-ventilated jet fire. The created knowledge should be translated into security tips, including modern engineering tools supporting their execution. Recommendations should be developed for advancements in the EU and worldwide RCS frameworks to support the safe introduction of HFC in very early markets. Task partners sought to enhance understanding of hydrogen dispersion and accumulation in confined areas. Work centered on a room-like enclosure of typically a few tens of cubic metres with normal ventilation. Based on current and new analytical and numerical models, partners worked on determining characteristic regimes of hydrogen dispersion. Parameters such as the size of the venting location, the size of the enclosure area and the leak flow rates were taken into account. A number of experiments had been carried out to study vented hydrogen–air deflagrations and the interplay between hydrogen–air and enclosure parameters with respect to overpressure effects. Another task was to perform experimental and numerical studies on hydrogen jet fire characteristics. Focus was placed on parameters such as self-extinction, re-ignition, radiation and flame length from outside hydrogen jet fires. Feasible security methods should be given in a tips document with important rules for indoor hydrogen use in the designs. Additional safety products should be proposed whenever sizing techniques are maybe not enough to respect the safety rules.

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  • Energy
  • Hydrogen
  • Usage
  • Power
  • Automobile
  • Car
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    grond@numberland.de (Administrator)Get in ContactSat, 16 Jan 2016 20:59:52 +0100
    Sustainable electric carshttp://travellertools.eu/index.php/get-in-contact/item/1532-sustainable-electric-carshttp://travellertools.eu/index.php/get-in-contact/item/1532-sustainable-electric-carsSustainable electric cars

    Sustainable electric cars

    ID: F1601-08

    Today's electric automobiles (EVs) suffer from reasonably large purchasing costs. a task is developing and assessing a new integrated electric motor concept in which the wheels are housing the entire powertrain except the battery pack. With this project, scientists are working on developing a full in-wheel motor construction prototype. Despite an expected market of 100 000 cars for the technology by 2015, most existing in-wheel designs are nevertheless at the model stage. Except for the wheel and the electric motor, power electronics, structural parts, brake system and a decrease gear are also areas of the prototype system. The proposed concept is based on a commonly used front suspension system — the MacPherson strut — and should be able to fulfill typical B-segment EV requirements. To develop and evaluate a concept vehicle, focus will be put on factors such as thermal stress under extreme working conditions, car dynamics, driveability, safety and durability. Interest is compensated to aspects such as eco-design, component and whole-car life-cycle assessment analysis, dismantling, and recycling of important materials such as uncommon earths. The in-wheel motor idea provides greater scope for revolutionising the car design, greatly increasing the interior area (the only remaining component to be housed in the car body is the battery) and improving driving performance. Overheating is a great threat for in-wheel motors, particularly since the proposed idea features a fully air-cooled motor, with traditional airflow driven by the vehicle and assisted by an innovative wheel design. This ensures that enough airflow is supplied to the in-wheel system to evacuate the temperature in metropolitan and motorway driving cycles. In addition, a fan is considered for the standstill situation, whenever the vehicle needs to drive gradually when the electric motor is at large conditions. With its activities, the project is developing the basis for a industry production electric motors and components with required performances at competitive expenses.

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    • sustainable
    • Electric
    • Car
    • Automobile
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      grond@numberland.de (Administrator)Get in ContactSat, 16 Jan 2016 20:59:43 +0100
      More carbon fibre for carshttp://travellertools.eu/index.php/get-in-contact/item/1506-more-carbon-fibre-for-carshttp://travellertools.eu/index.php/get-in-contact/item/1506-more-carbon-fibre-for-carsMore carbon fibre for cars

      More carbon fibre for cars

      ID: F1510-02

      In addition to being lightweight for gas efficiency, high-performance composite materials for the transport sector should have the potential to be used in fast manufacturing procedures. Presently, production volumes tend to be restricted to a few hundred or a few thousand products per year for aerospace or recreations automobile applications. A project changed that by developing two brand new high-volume materials for carbon fibre-reinforced plastic (CFRP) components for vehicles. The first developed system was advanced polyurethane (PU) thermoset matrix materials that showed improved mechanical overall performance and reduced period times whenever compared with the many frequently utilized epoxy matrix. Replacing this traditional matrix system with PU also enabled combining fast curing with high toughness and a large glass change temperature. Addition of nanoparticles in PU allowed further improvements in processing – reduced resin viscosity and effect kinetics – as well as in thermal and electric properties. Consortium partners built demonstrators making use of this brand new material in structural parts of a vehicle. These included the inner bonnet, rear seat back panel, and the B-pillar between the front door and the back home. Another breakthrough was to hybridise self-reinforced composites (SRCs) – polypropylene (PP) and polyamide – with carbon fibres. The task then followed a number of techniques to develop two SRC versions. In the very first instance, a little quantity of carbon fibres permitted SRC stiffness to increase without reducing toughness. In the 2nd instance, bigger quantities resulted in increased toughness, with rigidity remaining large. Reduced production times were accomplished through the thermoforming procedure.
      The advanced materials produced outcome in quick cycle times, showing unique promise for cost-effective, higher-volume manufacturing of high-performance CFRP parts.

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      • Energy
      • Carbon
      • Fibre
      • Car
      • Lightweight
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        grond@numberland.de (Administrator)Get in ContactTue, 27 Oct 2015 22:11:14 +0100