Does the ERJ use an ozone catalyst?
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- tripleseven
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http://www.aerodev.co.uk/ozone.html
To conserve fuel whenever practicable, and to limit cost increases resulting from world-wide increases in oil prices, passenger aircraft are now flying at higher altitudes than previously. This frequently takes them into the ozone-containing layer of the atmosphere, and when this is drawn into aircraft by air conditioning systems it may cause physical discomfort and irritation to aircrews and passengers. Catalytic decomposition, using a metal supported platinum catalyst, provides an economic practical solution in this problem by reducing to an acceptable level the amount of ozone entering the aircraft cabins.
To conserve fuel whenever practicable, and to limit cost increases resulting from world-wide increases in oil prices, passenger aircraft are now flying at higher altitudes than previously. This frequently takes them into the ozone-containing layer of the atmosphere, and when this is drawn into aircraft by air conditioning systems it may cause physical discomfort and irritation to aircrews and passengers. Catalytic decomposition, using a metal supported platinum catalyst, provides an economic practical solution in this problem by reducing to an acceptable level the amount of ozone entering the aircraft cabins.
- Jaques Strappe
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ERJ Ozone Converters
The E190 has two "Ozone Converters", one each located inboard of it's respective bleed source or engine.
Years and years ago when the built the Concorde they were worried about ozone, as it is an irritant. The thing is that when ozone goes through the bleed system, heat converts it back to plain oxygen. So I sincerely doubt that the ERJ or any airplane for that matter has a system to deal with ozone.
It's better to break ground and head into the wind than to break wind and head into the ground.
So what happens to the extra oxygen atom that was stripped off the ozone?Snowgoose wrote:Years and years ago when the built the Concorde they were worried about ozone, as it is an irritant. The thing is that when ozone goes through the bleed system, heat converts it back to plain oxygen. So I sincerely doubt that the ERJ or any airplane for that matter has a system to deal with ozone.
Doesn't show on any of the system schematics.The E190 has two "Ozone Converters", one each located inboard of it's respective bleed source or engine.
2 x O3 + heat -> 3 x O2yycflyguy wrote:So what happens to the extra oxygen atom that was stripped off the ozone?Snowgoose wrote:Years and years ago when the built the Concorde they were worried about ozone, as it is an irritant. The thing is that when ozone goes through the bleed system, heat converts it back to plain oxygen. So I sincerely doubt that the ERJ or any airplane for that matter has a system to deal with ozone.
Doesn't show on any of the system schematics.The E190 has two "Ozone Converters", one each located inboard of it's respective bleed source or engine.
In the atmosphere IIRC UV light splits Ozone into O2 and O-. The O- rapidly reacts with O2 again to form Ozone (O3).
It's better to break ground and head into the wind than to break wind and head into the ground.
Re: Ozone Converters
Thanks for the PM about the system. I don't have the books (yet!)drjet320 wrote:Look in Chapter 36.
It's better to break ground and head into the wind than to break wind and head into the ground.
- Jaques Strappe
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Re: Ozone Converters
Do you have a reference? I don't see anything on any Schematic or dialogue.drjet320 wrote:Look in Chapter 36.
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