Adam_Mc:
After all…lots of drivers believe AdBlue is actually made from sheep wee lol
They are correct. AdBlue, or to give it its non trade mark name, Diesel Exhaust Fluid (DEF) is roughly 30% concentrated animal urine [urea] (mostly pig) 70% water + blue dye.
Urea is also used in nitrogen based agricultural fertilizers and its what aircraft wings are sprayed with at airports to de ice them.
Well from what I’ve read, its made from natural gas. Why spend load of time and effort collecting wee from animals, then have to process it when it can made much easier by chemical ways?
Travel WM ran an experimental fleet of Natural Gas Powered Volvo buses along side British Gas. These were on “P” plates so I’d guess these were first ran around 1997.
I quite liked them to drive, slightly quieter & smoother than the equivalent diesel.
Having said that, I don’t think they were a major success as although they kept the original experimental fleet in service, they never ordered anymore. I think the main problem was poor fuel efficancey compared to a standard engine.
Adam_Mc:
Keystone (who do the McDonalds work) don’t use LPG at all…they use Bio-Diesel. Their Bio-Diesel is made from cleaned up oil from the deep fat friers at their restaurants. It used to cause a big problem for them as it kept on congealing as the company who made it didn’t use enough anti congealing chemicals in it…but now its fine…but to put it simply, its just clean out chip pan fat
swansea jack:
im sure some of the mc donalds daf cfs trucks that used to park at lesmahagow truckstop had gas LPG conversions on them as i was talking to a driver on for them
Well it certainly isn’t like that at the Basingstoke depot…They may have a couple of converted units on trial at another depot but I’ve never heard of it…but don’t always believe what the drivers say. After all…lots of drivers believe AdBlue is actually made from sheep wee lol But look for a sticker on Keystone units as they love to publicise how ‘green’ they are to the public by putting info on their units.
do you guys at basingstoke do nights out on mc work the guys at lesmahagow would work up there then go back south on last day as i would like to get on that job but live to far away in swansea
keystone have moved into 3663 old place at bellshill, share a yard with yearsley transport. Just a random fact
Adam_Mc:
After all…lots of drivers believe AdBlue is actually made from sheep wee lol
They are correct. AdBlue, or to give it its non trade mark name, Diesel Exhaust Fluid (DEF) is roughly 30% concentrated animal urine [urea] (mostly pig) 70% water + blue dye.
Urea is also used in nitrogen based agricultural fertilizers and its what aircraft wings are sprayed with at airports to de ice them.
and it also stinks , let some run on the floor when its been raining … its orrible …
it also crystalises when spilt & left to dry. & if i remeber right it corrodes bare wiring at 0.02mph that is why as soon as soon as it is spilt into a harness it requires replacing or imidiate drying out. watch ure bills from the dealers when you get ad blue sensors changed & you get charged for an adblue harness or wireing repairs itle be because the fitter spilt it. been there done it lol
merc0447:
Its called gas injection and it something my lot are trialling down south apparently. Not seen any myself.
Dual-Fuelâ„¢ is fitted onto a standard diesel engine, which operates unchanged, except power is generated by mostly clean natural gas. < snip >
Natural gas burns cleaner than diesel due to its inherently low carbon content.
When Natural gas replaces 90% of the diesel through Dual-Fuelâ„¢ it can reduce CO2 emissions by up to 25%, yet fuel-efficiency and power remain equivalent to that of the original diesel engine.
The bit I’ve highlighted in green is pure bull.
Natural gas or CNG or whatever initials they use, is a mixture of methane and propane, the same as you use in your camping stove. Both of those gases are among a group of compounds called alkanes. Another one in that group you’ll probably recognise is Octane, found in petrol. (They are also quite closely related to the alcohols, methanol (meths) and propanol, the one earlier in that group is ethanol, the one you get ■■■■■■ on)
All these compounds are built of carbon and hydrogen, with a fixed mix depending on the group they are in (alcohols have oxygen in the mix too). The whole group are called Hydro-Carbons. Diesel and petrol are also a hydro-carbons, with lots of other stuff added to them.
If you burn any of these pure compounds in pure oxygen, you’ll get exhaust gases of pure carbon dioxide and pure water (as steam). Unfortunately for that reaction, but fortunately for us, we don’t live in a pure oxygen environment. All the other stuff in air gets dragged into the burning as well, which means an inefficient burn. There’s all sorts of stuff added to diesel and petrol too, to stop waxing, or pinking or to lubricate various bits. So there’s all sorts of crap in the exhaust gases. However, none of that will affect the amount of carbon in a hydro-carbon, because the carbon content is fixed.
So that phrase due to its inherently low carbon content is complete and utter bull. The bit about reducing exhaust CO2 by 25% MIGHT be possible under perfect conditions, but its got nothing to do with the inherently low carbon content and all to do with the purity of CNG in comparison to diesel (or petrol).
sparky13:
but its the carbon footprint/ low tax.
Sorry mate, but you’ve been believing politicians if you believe that carbon footprint bit. It’s ALWAYS a bad idea to believe a politician. You can tell when they are lying, there lips are moving.
Low tax? OK, but that’s because the politicians are starting to believe their own lies now.
Adam_Mc:
After all…lots of drivers believe AdBlue is actually made from sheep wee lol
They are correct. AdBlue, or to give it its non trade mark name, Diesel Exhaust Fluid (DEF) is roughly 30% concentrated animal urine [urea] (mostly pig) 70% water + blue dye.
Urea is also used in nitrogen based agricultural fertilizers and its what aircraft wings are sprayed with at airports to de ice them.
and it also stinks , let some run on the floor when its been raining … its orrible …
And wo betide you if you put it in the screen wash bottle… Driver of mine did that when it first came out, the whole front of the wagon looked like a christmas scene and stank to high heaven.
Adam_Mc:
After all…lots of drivers believe AdBlue is actually made from sheep wee lol
They are correct. AdBlue, or to give it its non trade mark name, Diesel Exhaust Fluid (DEF) is roughly 30% concentrated animal urine [urea] (mostly pig) 70% water + blue dye.
Urea is also used in nitrogen based agricultural fertilizers and its what aircraft wings are sprayed with at airports to de ice them.
and it also stinks , let some run on the floor when its been raining … its orrible …
And wo betide you if you put it in the screen wash bottle… Driver of mine did that when it first came out, the whole front of the wagon looked like a christmas scene and stank to high heaven.
I think you may find it is corrosive urea that is spread on the runways to prevent frost and a glycol mix on the wings and ailerons
Adam_Mc:
After all…lots of drivers believe AdBlue is actually made from sheep wee lol
They are correct. AdBlue, or to give it its non trade mark name, Diesel Exhaust Fluid (DEF) is roughly 30% concentrated animal urine [urea] (mostly pig) 70% water + blue dye.
Urea is also used in nitrogen based agricultural fertilizers and its what aircraft wings are sprayed with at airports to de ice them.
and it also stinks , let some run on the floor when its been raining … its orrible …
it also crystalises when spilt & left to dry. & if i remeber right it corrodes bare wiring at 0.02mph that is why as soon as soon as it is spilt into a harness it requires replacing or imidiate drying out. watch ure bills from the dealers when you get ad blue sensors changed & you get charged for an adblue harness or wireing repairs itle be because the fitter spilt it. been there done it lol
Urea Crystals is used by the RAF use to clear runways was always told it was pig pee and it wil rot the boots right off your feet
It’s strong stuff
The ESL units are dual fuel - Diesel / LPG
I assume it similer to a car in taht you caqn run on either then switch about
The units are more expensive but teh cost of LPG shopuld offset that
Soldier z:
The ESL units are dual fuel - Diesel / LPG
I assume it similer to a car in taht you caqn run on either then switch about
The units are more expensive but teh cost of LPG shopuld offset that
LPG needs spark ignition so it’s not compatible with diesel engined trucks or cars and it’s got less calorific value than petrol or diesel.But it’s got much better octane rating than petrol so what’s needed is a supercharged spark ignition truck engine.But when everyone’s fitted one of those the zb’s in the government would just raise the tax on LPG.
Carryfast:
LPG needs spark ignition so it’s not compatible with diesel engined trucks or cars and it’s got less calorific value than petrol or diesel.But it’s got much better octane rating than petrol so what’s needed is a supercharged spark ignition truck engine.But when everyone’s fitted one of those the zb’s in the government would just raise the tax on LPG.
Hi Carryfast,
That’s very interesting.
I visited a website on the subject of Diesel/LPG and I didn’t see a “supercharged spark ignition truck engine,” so now I’m not sure what’s going on.
trialing these to save money,we run round half the time empty,so why not just give us a fiesta van, it would be alot cheaper to run round empty in one of those [65 mpg] than a diesel/gas volvo truck 8/9/10 mpg.
LPG needs spark ignition so it’s not compatible with diesel engined trucks or cars
Pardon me. that has got to be one of the stupidest things you’ve said so far. Oxygen for pete’s sake will combust if enough compession is applied. LP gas will combust with enough combustion pressure is applied. Autoignition temp is 1004 degrees F. Now the pressure required to bring the temperature to 1004 degrees will cause combustion. Dont know where you went to school carry but I think maybe they made a mistake, and just let you slide through.
LPG needs spark ignition so it’s not compatible with diesel engined trucks or cars
Pardon me. that has got to be one of the stupidest things you’ve said so far. Oxygen for pete’s sake will combust if enough compession is applied. LP gas will combust with enough combustion pressure is applied. Autoignition temp is 1004 degrees F. Now the pressure required to bring the temperature to 1004 degrees will cause combustion. Dont know where you went to school carry but I think maybe they made a mistake, and just let you slide through.
Where I went to school it was more like being in a top security jail than a place to learn something so I just found out everything that I need to know for myself and that seems to have provided me with a better education than any school might have done.
So yeah right under your logic you would’nt need to provide any fuel at all as you can just fill the cylinders with a charge of air and ignite the oxygen in it under compression ignition.
Wrong.Oxygen is’nt combustible by itself it’s an oxidiser that acts as ‘one’ of the required components for combustion.Just fill the cylinders on a diesel engine with either fuel or oxygen and zb all will happen the same as a petrol engine.
However if you think that you can run a diesel engine on LPG then why is everyone paying over twice as much to run a diesel engine on diesel fuel when they could just use LPG instead and if you don’t believe that it needs spark ignition to run on LPG,just the same as petrol,just ask anyone who converts engines to run on the zb stuff.LPG does’t have a Cetane rating,which you need for compression ignition.Just like petrol it’s got Octane properties which would’nt allow it to run under diesel ignition pressures without detonating before it can do any work.
oh really O2 wont combust by itself eh. Think you better learn a bit more in the area of chemistry and physics. O2 will combust I have photos of the side of a T33 where an O2 tank ignited burns through metal real nice. Now do you wish that I look in my handbook of chemisty and physics for the ignition temp of o2 I can do that as well. Want to know what the byproduct of o2 burn is its called Ozone.
been there done it lol
