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Any thing in the news at all, Post it here.
Made me think today when i was watching SUNDAY program about Bleed Air from
airlines where they recirculate air from the turbines to pressurize the cabins.
http://sunday.ninemsn.com.au/sunday/cover_stories/article_2209.asp
Funny thing was after it went to the ads on the program this mornin they had a qantas ad saying how much they spending on the airlines Blah Blah blah
Then when they finished up the reporter said that the New Boeing 787 Dream Liners are the only aircraft that now dont use the bleed air recirculation to pressurize their cabins, Then came the ad from qantas again That said qantas has purchased a whole stack of these dreamliner aircraft: Gee thats nice of them
Made me think today when i was watching SUNDAY program about Bleed Air from
airlines where they recirculate air from the turbines to pressurize the cabins.
Bleed air
From Wikipedia, the free encyclopedia
Bleed air in gas turbine engines is compressed air taken from within the engine, after the compressor stage(s) and before the fuel is injected in the burners. While in theory bleed air could be drawn in any gas turbine engine, its usage is generally restricted to jet engines used in aircraft. This compressed air can be used within the aircraft in many different ways, from de-icing, to pressurizing the cabin, to pneumatic actuators. However, bleed air is quite hot and when being used in the cabin or other low temperature areas, it must be cooled or even refrigerated. Bleed air is valuable in an aircraft for two properties: Its high temperature and its high pressure.
Newer aircraft rely more on electricity, reducing the need for compressed air. Since most gas turbine engines use multiple compressor stages, some newer engines have the bleed air inlet between compressor stages to reduce the temperature of the compressed air.
http://sunday.ninemsn.com.au/sunday/cover_stories/article_2209.asp
Funny thing was after it went to the ads on the program this mornin they had a qantas ad saying how much they spending on the airlines Blah Blah blah
Then when they finished up the reporter said that the New Boeing 787 Dream Liners are the only aircraft that now dont use the bleed air recirculation to pressurize their cabins, Then came the ad from qantas again That said qantas has purchased a whole stack of these dreamliner aircraft: Gee thats nice of them