Compact Tractor Diesel Particulate Filters (DPF) Version 2.0

[RickB]

You can’t put a septic tank within x feet of a well but EGR is advanced technology?

 

[jeff9366]

I haven't kept up with Diesel Emission technology, but I was reading through the posts on DPF technology in Posts 1 thru 5 above....and it struck me that the whole DPF technology sounds odd.
If I have it right DPF involves running full blast & burning extra fuel for the purpose of reducing large soot particles trapped in a cannister into smaller soot particles that are blasted out into the air.

As you know Scotty, I am not an emission nor engine guru, but I research diligently. Though seventeen months have passed since the predecessor of this thread began, I feel pretty confident posting a reply. Here is my take:

Tier IV compliant exhaust is impressively 99% cleaner than Tier III compliant exhaust.

Almost all Tier IV pollution reduction involves cleaner computer controlled fuel combustion within 'new' engines engineered to meet Tier IV standards.

A minuscule amount of nasty diesel residue, tar, exits the engine, then enters the DPF where residue condenses/accumulates on a ceramic matrix. Fine diesel particulates/soot/tar entering DPF is probably cancer causing, as is tar in tobacco smoke, but DPF tar is periodically incinerated at 1,100 degrees Farenheit, in a process called DPF regeneration. Incineration byproduct which exits DPF into the atmosphere is primarily carbon in the form of ash, weighing a few grams, relative to 30 gallons of fuel (+/-) burned during sixty engine hours of L3560 operation.

Parked DPF regeneration of my Kubota L3560 @ 2,200 rpm takes consistent sixteen minutes. Parked regeneration occurs every 60 engine hours/3,600 minutes in warm Florida. Do the math: 16/3,600 = ?

Those who run compact tractors harder than I, due to the nature of their applications, regularly have DPF temperature over 1,100 degrees Fahrenheit. During hot operation computer initiated DPF regeneration occurs as part of normal operation without operator intervention and without additional fuel consumption. At least in Kubota compact tractors.

I do a lot of stop-and-go tree and trail work.

 

[Ortimber]

You can’t put a septic tank within x feet of a well but EGR is advanced technology?

Lol, I see what you did there.

 

[RenoHuskerDu]

Following summarizes cost to VW for exceeding diesel emission standards on their diesel engine cars. Not entirely germane, but somewhat so.

How much has Dieselgate cost Volkswagen?

27,000,000,000 Euros = $30,760,000,000 $/US​

B....b....BILLIONS!​

Or was VW punished for selling small-displacement, reliable, sturdy diesel cars that showed us the missing Emperor's Clothes, as in electric vehicles they want to shove down our throat.

 

[jeff9366]

I am now seventy-one years of age.

In my mid-twenties I made numerous business trips to NYC and Los Angeles.

During that time you often could not see the length of a block and the air made you sick, at least it made me sick as a visitor.

I am willing to pay for pollution control technology. I experienced "before".

 

[RickB]

I am now seventy one.

In my mid-twenties I made numerous business trips to NYC and Los Angeles.

During that time you often could not see the length of a block and the air made you sick, at least it made me sick as a visitor.

I am willing to pay for pollution control technology. I remember "before".

On this we can agree. I grew up on a hill farm on the east fringe of the Hudson Valley with excellent views of the Catskills 30 air miles and more to the west. Views that in my youth were all too often obstructed for days on end due to poor air quality. These conditions seldom (if ever) occur now.

 

[MHarryE]

Remember flying into Cancun in 1991. Leaving the terminal, I started having trouble breathing due to fumes I hadn’t experienced in USA for years. Opened the hood on my Nissan rental and saw an engine with no emissions controls. Glad to get away from the airport and out into the countryside.

When I lived in France (1997 - 2000), they reported diesel cars made up 80% of sales. Price significantly lower per gallon, and mileage greatly improved, but they could really pollute. My diesel was newer with some controls even in 1997. I got a sticker to I could drive into Paris on pollution alert days. Now, even with improvements, no diesels built before 2009 allowed, no diesel trucks before 2006, and by 2024 no diesels allowed in the city period. Too much data on effects on lungs - first the ban on smoking and now diesels VW making a mockery of the regulations convinced them the only way to keep companies from cheating was to ban completely.

 

[rScotty]

I don't think it's my imagination, but every time a thread turns political - and especially if it is anti-gov't - I don't even have to look at the poster's location to know what area of the country he is from.

I grew up in the Southern Ozarks where there is not much mechanization. I can well remember in the 50s through the 80s going to towns and how they all stank of gasoline, rubber, and burnt stuff. And these were towns of 10,000 people. The small towns were bad enough; the larger ones would make your eyes burn before you even got into the city. When you got home, everyone knew by the way your clothes smelt where you'd been.

The air is far better now, and the land is healthier too. I sure don't like the way the gov't forced us to clean it up, but I certainly do like the results - they benefit us all. And much as I hate to admit it, if we hadn't been forced to make changes nothing was going to happen to make it better.
rScotty

 

[RickB]

I don't think it's my imagination, but every time a thread turns political - and especially if it is anti-gov't - I don't even have to look at the poster's location to know what area of the country he is from.

I grew up in the Southern Ozarks where there is not much mechanization. I can well remember in the 50s through the 80s going to towns and how they all stank of gasoline, rubber, and burnt stuff. And these were towns of 10,000 people. The small towns were bad enough; the larger ones would make your eyes burn before you even got into the city. When you got home, everyone knew by the way your clothes smelt where you'd been.

The air is far better now, and the land is healthier too. I sure don't like the way the gov't forced us to clean it up, but I certainly do like the results - they benefit us all. And much as I hate to admit it, if we hadn't been forced to make changes nothing was going to happen to make it better.
rScotty

I think that sums it up nicely.

 

[jeff9366]

Due to the requirement that new tractors over 25-horsepower meet stringent Tier IV emission rules, which requires two stages of emission upgrades over older models, new tractors jump from 25-horsepower to about 33-horsepower with very few, if any, new tractors around 30-horsepower.