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  1. #1
    Habemus Marcionem!
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    Predefinito Oslo Airport: First in Europe to use infrared deicing

    First in Europe to use infrared deicing

    SAS Ground Services Norway AS (SGS Norway) is to be the first ground operator in Europe to test out infrared deicing of aircraft. A hangar for infrared deicing is currently being rigged up at Oslo Airport.

    31.10.2005





    Together with Radiant and Oslo Lufthavn AS, which owns and runs Oslo Airport, SGS Norway will test out the use of infrared heat waves to deice aircraft.

    Aircraft deiced by this method taxi through a specially built hangar in which snow and ice are removed by heat waves. Infrared deicing reduces runoff of the chemical glycol by around 70%.

    “It is part of our strategy of testing new products within the supply of the ground services, so that we can offer our airlines more efficient, economic and environmentally friendly products in the future,” says Ola H. Strand, Managing Director of SGS Norway.

    The deicing hangar is expected to be taken into use for testing early next year and will supplement standard deicing for the rest of the winter season.

    “Oslo Airport is a modern airport and considers it only natural to adapt to our customers’ new ways of thinking. We consider the reduction in chemical runoff provided by the new method to be a positive factor and see this as a valuable contribution to our work on looking after the environment at the airport,” says Nic Nilsen, Managing Director of Oslo Lufthavn AS.

    “We have had good experience in the USA and are looking forward to starting up infrared deicing in Europe. We are pleased that SGS Norway and Oslo Lufthavn are positive towards taking this new method into use,” says Svein Utkilen of Radiant.



    De-icing processes
    Traditional glycol-based de-icing is carried out as a one or two-step process depending on weather conditions. The one-step process is performed during good weather or in weather situations where aircraft are not subject to snow, freezing rain etc. after the de-icing is completed. The two-step process is carried out when it snows, during freezing fog / rain and the like.

    The first step in the de-icing process (de-icing) is used to remove undesired snow and ice from wings, tail and, if necessary, the fuselage. This comprises the entire treatment with one-step processes. With two-step processes, a secondary anti-icing process is carried out. In this process, a protective or preventive layer is applied to prevent snow and / or ice forming after the de-icing process (step one) is completed.

    With traditional de-icing (step one), hot water or a mixture of hot water and hot glycol are used for the de-icing process. During step two (the anti-icing process) a cold glycol mixture containing about 50% glycol is applied.

    The glycol is designed so that most of it loosens from the fuselage and wing surfaces during take-off.

    With infrared de-icing (IR), the infrared de-icing will replace step one in a two-step de-icing process, thereby restricting the use of glycol to the anti-icing operation.

    Glycol consumption
    Oslo Airport uses an average of about 600 litres of liquid during de-icing operations, of which about 100–120 litres of pure glycol are used during the de-icing stage and about 25–30 litres during the anti-icing stage. Consumption varies widely according to temperature and weather conditions.

    US airports are reporting an up to 90% reduction in glycol consumption with the use of infrared de-icing. Based on existing procedures and routines it is estimated that Oslo Airport could potentially reduce its glycol consumption by 50–70% on aircraft treated with IR. This is one of the questions that the ongoing project will provide answers to.

    The overall effect of the IR system will depend on how many aircraft the system can handle. This, too, will be verified in the ongoing project.

    In addition to the operating impact, the airport’s main objective for the project is to evaluate primarily the local environmental impact of the system. At Oslo Airport, about 80% of the aircraft de-icing fluid that is used is collected. This fluid is treated and / or used in other operations in a environmentally satisfactory manner. The remainder of the de-icing chemicals blows off the aircraft during take-off and is filtered in the soil along the runways. For environmental reasons, It is particularly desirable to reduce these amounts.

    With the use of infrared de-icing, only de-icing chemicals will be used on wing surfaces and tails, while the fuselage itself will be less exposed to chemicals. There is reason to assume that compared with traditional de-icing this will cut back the dispersal of chemicals along the runway systems. Oslo Lufthavn AS (OSL) therefore wants to test whether the rate of collection can be increased and dispersal further reduced by the introduction infrared de-icing.


    L'articolo originale potete trovarlo
    qui

    DaV
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  2. #2
    CIA, TRN, e qualche volta FCO
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    Predefinito

    Ciao,

    beh l' idea è vecchia e non è nemmeno il primo de-ice non totalmente chimico utilizzato per gli aeromobili.

    L' unica cosa complessa e che non si potrà fare a meno di spruzzare agenti liquidi sulle superfici, poichè bisogna evitare che i depositi sciolti si risolidifichino. Quindi sarà comunque necessari spruzzettare l' aeromobile dopo il trattamento. Come dice l' articolo, però,in questo modo si ridurranno i quantitativi di liquido utilizzato a favore dell' ambiente, stress dei materiali, economicità, ecc.

    Sembra davvero interessante!


    Andrea

 

 

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