Résultats de recherche

  • Optimisation d'une pompe à chaleur pour le refroidissement des satellites

    Satellites are deployed into near earth orbit in order to provide a platform for a wide range of missions, including telecommunications systems, surveillance systems and astronomical systems.These systems have seen a large increase in...

    • Date de publication : 19/06/2015
  • Un nouveau minuscule système de refroidissement pour satellite (en anglais)

    Lockheed Martin a conçu un minuscule système de refroidissement pour satellite trois fois plus puissant. (en anglais)

    • Date de publication : 17/09/2015
  • Cryogenic applications: Cooling largest outer-space telescope

    In his presentation on cryogenics applications at the IIR-AFF centenary conference in Paris (see Focus), Philippe Lebrun, President of the IIR's Section A, mentioned cryogenic detectors of cosmic signals and cited Herschel probe as an example. The...

    • Date de publication : 12/08/2008
  • Cryogenic applications: India

    India is developing semi-cryogenic propulsion technology using kerosene as a propellant to enhance its capability to launch satellites in the 6-tonne class. The technology utilizes liquid oxygen and aviation-grade kerosene instead of liquid...

    • Date de publication : 27/05/2010
  • Briefs: IBUKI

    In order to promote preventive measures against global warming on a worldwide scale, it is imperative to explore the behaviour of greenhouse gases that cause global warming. The Greenhouse Gases Observing Satellite IBUKI (GOSAT) is a collaborative...

    • Date de publication : 18/05/2009
  • Air conditioners rank as top invention

    In a US nationwide online survey conducted by The Henry Ford Fondation in Dearborn and America Online, air conditioning tops the list of the best ideas and innovations in the past 75 years. The Henry Ford Fondation, which celebrates its 75th...

    • Date de publication : 11/02/2005
  • Des terres rares pour les mesures spatiales.

    Les chercheurs du CEA-Inac ont mis au point un cryoréfrigérateur à base de terres rares, plus performant et moins gourmand.

    • Date de publication : 27/11/2014
  • Air conditioners rank as top invention in a US survey

    In a US nationwide online survey conducted by The Henry Ford in Dearborn and America online, air conditioning tops the list of the best ideas and innovations in the past 75 years. The Henry Ford, which celebrates its 75th anniversary, presented to...

    • Date de publication : 25/11/2004
  • Le vol inaugural de la fusée européenne Ariane 6 est un succès

    Le 9 juillet, la nouvelle fusée européenne a effectué son premier vol, propulsée par des carburants cryogéniques.

    • Date de publication : 12/07/2024
    • Sujets : Technologie
  • Briefs: Thermoacoustics

    A project led by the University of Nottingham aims at developing a device acting as a refrigerator, cooker and power generator, using biomass fuels such as wood. The SCORE (Stove for COoking, Refrigeration and Electricity) is based on the use of...

    • Date de publication : 05/08/2007
  • Le refroidissement des supercalculateurs les plus puissants au monde

    Le refroidissement liquide direct constitue une solution très efficace sur le plan énergétique pour refroidir les supercalculateurs capables d’effectuer des millions ou milliards de milliards de calculs par seconde. Voici deux exemples aux...

    • Date de publication : 30/12/2019
  • Briefs: Interactive fridge

    LG electronics has launched a state-of-the-art refrigerator that is not just for storing food: it is connected to a satellite and provides weather forecasts, displays digital photos, cooking recipes and can be connected to a DVD player, USB drive...

    • Date de publication : 15/11/2006
  • Briefs: Antarctic ozone hole smallest in five years

    The Antarctica ozone hole is the smallest it has been in 5 years, according to research from Niwa, New Zealand's National Institute of Water and Atmospheric Research. Satellite data combined with ground-base measurements show the hole reached a...

    • Date de publication : 07/02/2011
  • Nestlé Japan’s Himeji factory’s natural gas cogeneration system

    Nestlé Japan's Himeji factory's natural gas cogeneration system has won the 9th New Energy Award in recognition of its high degree of innovation. The Himeji plant is used to produce soluble coffee cryogenically and has high energy efficiency (92%,...

    • Date de publication : 19/07/2005
  • Briefs: The hole truth

    The closely monitored ozone hole above Antarctica is renowned for its unpredictable seasonal behaviour and changes in shape. High-altitude clouds form above Antarctica as soon as the temperature goes below -85°C in winter and spring, seasons...

    • Date de publication : 27/07/2004