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Old 04-11-2011, 11:25 PM
 
Location: Texas
5,068 posts, read 10,114,930 times
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DALLAS, April 11, 2011 — A commercially available particle trap can filter microscopic pollutants in diesel-engine exhaust and prevent about 98 percent of them from reaching the air, according to research reported in Circulation: Journal of the American Heart Association.


Inhaling exhaust particles increases the risk of dying from heart and lung diseases. Air pollution, including diesel exhaust as a major contributor, causes 800,000 premature deaths annually in the world, according to the World Health Organization.
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Old 04-12-2011, 09:42 AM
 
14,780 posts, read 43,582,793 times
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Quote:
Originally Posted by Brian.Pearson View Post
DALLAS, April 11, 2011 — A commercially available particle trap can filter microscopic pollutants in diesel-engine exhaust and prevent about 98 percent of them from reaching the air, according to research reported in Circulation: Journal of the American Heart Association.


Inhaling exhaust particles increases the risk of dying from heart and lung diseases. Air pollution, including diesel exhaust as a major contributor, causes 800,000 premature deaths annually in the world, according to the World Health Organization.
These have been in use for sometime now. Beginning in 2008 with the new emissions protocol all new diesel engines are now equipped with diesel particulate filters and use a few different methods of "regenerating" these filters to keep them clean. This is probably one of the worst things that has happened to the diesel powered industry, greatly increasing the complexity and mainentance expense of a diesel fleet.
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Old 04-13-2011, 07:45 AM
 
Location: Texas
5,068 posts, read 10,114,930 times
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Looks like the main thrust is the drivers health. BTW, what methods to the have of "regenerating" the filters? Are they washable?
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Old 04-13-2011, 08:03 AM
 
42 posts, read 85,033 times
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Quote:
Originally Posted by Brian.Pearson View Post
DALLAS, April 11, 2011 — A commercially available particle trap can filter microscopic pollutants in diesel-engine exhaust and prevent about 98 percent of them from reaching the air, according to research reported in Circulation: Journal of the American Heart Association.


Inhaling exhaust particles increases the risk of dying from heart and lung diseases. Air pollution, including diesel exhaust as a major contributor, causes 800,000 premature deaths annually in the world, according to the World Health Organization.
Are they available for smaller diesels as well? My husband is purchasing a Ford F-250 diesel this week. It would be nice to know that we weren't contributing to the pollution problem.
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Old 04-13-2011, 09:20 AM
 
Location: God's Gift to Mankind for flying anything
5,921 posts, read 13,819,447 times
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<<<The volunteers breathed filtered air, unfiltered dilute diesel-engine exhaust and dilute diesel-engine exhaust after it passed through a particle trap. Participants inhaled each gas for one hour in an exposure chamber during which they did two 15-minute periods of moderate exercise. At least one week separated each inhalation session. Researchers randomized the order in which each man breathed the three gases.>>>

Why would anybody subject themselves to a test that is detrimental to your health ... ? But then, how else would you prove a point ??

If the tests, show that about 98% of the particulates is removed, then whatever damage could result, would also be significantly less !
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Old 04-13-2011, 11:09 AM
 
14,780 posts, read 43,582,793 times
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Quote:
Originally Posted by Brian.Pearson View Post
Looks like the main thrust is the drivers health. BTW, what methods to the have of "regenerating" the filters? Are they washable?
It depends on the application. Most of the current setups use a catalyst (urea) injected into DPF from a separate tank. The catalysy is then ingnited and burns off the trapped particulates. These particulates then pass through a catalytic converter where they are cleaned similar to how a car works. Modern diesels using this technology produce the same or in some cases less emissions than gasoline powered cars with similar sized engines.

The burn process is not 100% effective and can be influenced by the operating condition of the vehicle. For instance, high idle times results in an inefficient burn and excess particulate. On large trucks and some smaller models the particulate filter can be removed and cleaned using a special compressed air tool in a sealed booth. The particulate is then collected and properly disposed of. Some vehicles (Ford F-series diesels for example) require the replacement of the DPF, which can run upwards of $2,000 do to it being made out of prescious metals.

Quote:
Originally Posted by DarwinFan View Post
Are they available for smaller diesels as well? My husband is purchasing a Ford F-250 diesel this week. It would be nice to know that we weren't contributing to the pollution problem.
All new diesel trucks have this form of emissions control. Beginning in 2003/4 they added EGR (exhaust gas recirculation similar to cars) and catalytic converters. As of 2008 the DPF's were added as well as the standalone urea catalyst to allow them to burn off the particulate in the trap.

If you are buying a brand new F-250 with the 6.7L diesel engine, it has all of the latest emissions technology and produces pollutants equal to what the gas engine models produce.
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Old 04-13-2011, 02:13 PM
 
42 posts, read 85,033 times
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Originally Posted by NJGOAT View Post
All new diesel trucks have this form of emissions control. Beginning in 2003/4 they added EGR (exhaust gas recirculation similar to cars) and catalytic converters. As of 2008 the DPF's were added as well as the standalone urea catalyst to allow them to burn off the particulate in the trap.

If you are buying a brand new F-250 with the 6.7L diesel engine, it has all of the latest emissions technology and produces pollutants equal to what the gas engine models produce.
This one is an '04, I think. So, I think we're covered. That is very good information to know. Thanks for letting me know!
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