07-26-2013, 12:25 AM
|
#11 (permalink)
|
Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,268
Thanks: 273
Thanked 3,570 Times in 2,834 Posts
|
Quote:
Originally Posted by euromodder
diesel particulate filters further reduce the size of the particles, below the size that gets measured.
|
I usually say the solution to pollution is dilution but I guess hiding it works even better.
In the US ford 6.7L diesel pickup trucks have DPF and they run B20.
The ford DPF burn off looks just as inefficient as all the others.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
07-26-2013, 05:53 AM
|
#12 (permalink)
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,923
Thanks: 0
Thanked 1,697 Times in 1,515 Posts
|
Quote:
Originally Posted by euromodder
Effectively, the advent of DPFs has killed off a triving German 100% biodiesel production - mostly Rapeseed Methyl Ester in Germany.
|
That's really a bad effect from the DPF trend. Well, maybe if the DPF could retain more exhaust heat (possibly with an insulated coating on the outside and its core made out of some composite with a higher thermal conductibility), and getting its regen independent from the main injection cycles as already happens in some engines such as the Duramax and the current-generation Powerstroke, the oil contamination and DPF damage issues would be less frequent. Getting rid of the EGR is also better for the reasons already pointed out, such as the heat rejection thru the exhaust instead of the cooling circuit, and due to the absence of a direct interference into the combustion process it would allow a more accurate control of injection timing, which is also beneficial to decrease both NOx and fuel consumption, thus also requiring a lesser amount of DEF aftertreatment.
|
|
|
The Following User Says Thank You to cRiPpLe_rOoStEr For This Useful Post:
|
|
07-26-2013, 12:27 PM
|
#13 (permalink)
|
...beats walking...
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
|
STANDARDIZATION = single-grade of gasoline and diesel!
|
|
|
07-26-2013, 02:25 PM
|
#14 (permalink)
|
Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,268
Thanks: 273
Thanked 3,570 Times in 2,834 Posts
|
Quote:
Originally Posted by cRiPpLe_rOoStEr
That's really a bad effect from the DPF trend. Well, maybe if the DPF could retain more exhaust heat (possibly with an insulated coating on the outside and its core made out of some composite with a higher thermal conductibility), and getting its regen independent from the main injection cycles as already happens in some engines such as the Duramax and the current-generation Powerstroke, the oil contamination and DPF damage issues would be less frequent. Getting rid of the EGR is also better for the reasons already pointed out, such as the heat rejection thru the exhaust instead of the cooling circuit, and due to the absence of a direct interference into the combustion process it would allow a more accurate control of injection timing, which is also beneficial to decrease both NOx and fuel consumption, thus also requiring a lesser amount of DEF aftertreatment.
|
The problem is some times our government thinks every idea is a good idea even when said ideas interfere with each other or counteract each others effect.
Ether that or they want diesel fuel users to buy more gallons of fuel taxed at a rate of around 50 cents or more per gallon.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|
|
|
07-27-2013, 06:57 AM
|
#15 (permalink)
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,923
Thanks: 0
Thanked 1,697 Times in 1,515 Posts
|
Quote:
Originally Posted by oil pan 4
The problem is some times our government thinks every idea is a good idea even when said ideas interfere with each other or counteract each others effect.
Ether that or they want diesel fuel users to buy more gallons of fuel taxed at a rate of around 50 cents or more per gallon.
|
Bureaucrats seem to be unable to think logically regarding technical aspects, but they know how to hunt for more taxes...
|
|
|
|