Brentanna:
I have an epic fail LOLcat I was going to put up for him, but I am giving him a chance to redeem himself.
No go ahead make my day just use LPG instead of diesel in a diesel engine it will save you a fortune in fuel costs and raise the compression ratio in a spark ignition petrol or LPG fuelled engine to that found in most diesel engines.It’ll make the thing much more efficient 
.
I just hope that no one with any sense believes it though.
A reliable source please scientic university studies, engineering data, pertolium institue data , something from a reliable source.
your mindless babble is getting a bit old.
Brentanna:
Actually I use that site very little I would like to dirrect your attention to the post you just made, and answer this what part of 5% diesel fuel as an ignition source are you having such a hard time grasping ? It is the peverbial spark plug in this type of operation. You just admitted the same in your above post start reading some of the material we have supplied and actually learn something. Would you like some of those links again ? Yup you are still thiunking petrol as in gasoline. Did you note in that piece that it said ethinol was up to 15:1 dont see one for natural gas there do you have the compression ratio for that ? Also that show the compression ratios for spark engines using spart doesnt show maximum extreme compression rations for autoignition of batural gas not LPG. Please that site is not a reliable source it is good for chemical properties and such hich are copied from other sources but as for reliable it is not I can prove that as well.
Which part of ‘detonation’ can occurr ‘during’ and 'after ’ ‘ignition’ don’t you understand.The issue is’t igniting the stuff it’s making it burn properly without detonating under the types of compression pressures and cylinder temperatures which occurr in compression ignition engines.Which is why they use diesel fuel in diesel engines not high octane petrol ignited by a drop of diesel put into the cylinder first.
What part of Natural gas do you not understand ? let me guess you think it comes out of the ground as a liquid 
It comes out as a gas and has to be liquified , so how ecactly do they do that ? When it returns to a gasious form in the combustion cylinder what happens to the liquid. ? Silly boy think before you talk. Gasloine and diesel are liquid in their natural state, NPG, and LPG are gases in thier natural state the compression ratios are given for which state gas or liquid ? Maybe do some more srearch before you answer that one, or you will look really stupid on here.
Carryfast:
As no one seems to be able to think for themselves without consulting the wiki lot these days I’ve done the best that I can in finding the info you’re asking for.
Hi Carryfast,
I’ve no need to consult wiki for the point I’m making, because I’m still trying to understand what you’re saying before I make a point. 
Without me making any assumptions, I’ve asked you a very straightforward question:
Are you saying that the normal running temperature achieved by a normal diesel engine would be hot enough to ignite/detonate a petrol/air mixture by compression igniton alone?
Of course, you’d need to bear in mind the automatic ignition temperature for petrol when you answer.
it is kinda like watching a dog chase his own tail while you are trying to give him a steak to eat. Havent had this much fun since teaching thermodynamics.
Brentanna:
What part of Natural gas do you not understand ? let me guess you think it comes out of the ground as a liquid
The compression ratio of an engine has nothing to do with the state of the fuel and to all intents and purposes the cylinder charge of a petrol or diesel fuelled engine is a more like a gas (vapour),not a liquid,anyway which is what the carburettor used to do by mixing fuel with air and injectors do by atomising the fuel into a mist which mixes with the air in the manifold (indirect injection) or the cylinder (direct injection) before ignition.So I think you’ll find that compression ratio stays the same whatever fuel you intend to run the engine on.
LPG is a gas in a liquid state and can actually be injected and atomised in just the same way as petrol or diesel by common rail Liquid Phase Injection.But common sense tells me that’s in relation to spark ignition engines running on LPG,not diesel engines.Because most people with common sense know that it’s more sensible to run a spark ignition engine on a high octane fuel than it is to run a compression ignition engine on one.
But if knowing that the compression ratio of an engine is’nt governed by the state of the fuel,makes me stupid then I must be on the wrong planet.
Brentanna:
What part of Natural gas do you not understand ? let me guess you think it comes out of the ground as a liquid
The compression ratio of an engine has nothing to do with the state of the fuel and to all intents and purposes the cylinder charge of a petrol or diesel fuelled engine is a more like a gas (vapour),not a liquid,anyway which is what the carburettor used to do by mixing fuel with air and injectors do by atomising the fuel into a mist which mixes with the air in the manifold (indirect injection) or the cylinder (direct injection) before ignition.So I think you’ll find that compression ratio stays the same whatever fuel you intend to run the engine on.
LPG is a gas in a liquid state and can actually be injected and atomised in just the same way as petrol or diesel by common rail Liquid Phase Injection.But common sense tells me that’s in relation to spark ignition engines running on LPG,not diesel engines.Because most people with common sense know that it’s more sensible to run a spark ignition engine on a high octane fuel than it is to run a compression ignition engine on one.
But if knowing that the compression ratio of an engine is’nt governed by the state of the fuel,makes me stupid then I must be on the wrong planet.
high octane fuels (resistance to ignition and burning under compression ignition) are’nt designed to be used in compression ignition engines
Um carryfast see the above
Epic Fail
The compression ratio of an engine has nothing to do with the state of the fuel and to all intents and purposes the cylinder charge of a petrol or diesel fuelled engine is a more like a gas (vapour),not a liquid,anyway which is what the carburettor used to do by mixing fuel with air and injectors do by atomising the fuel into a mist which mixes with the air in the manifold (indirect injection) or the cylinder (direct injection) before ignition.So I think you’ll find that compression ratio stays the same whatever fuel you intend to run the engine on.
LPG is a gas in a liquid state and can actually be injected and atomised in just the same way as petrol or diesel by common rail Liquid Phase Injection.But common sense tells me that’s in relation to spark ignition engines running on LPG,not diesel engines.Because most people with common sense know that it’s more sensible to run a spark ignition engine on a high octane fuel than it is to run a compression ignition engine on one.
You didnt do your homework and research the topic. So I guess thats another fail .
I have the data on another computer in Microsoft office I will have to transfer it to a cd to load on here. You were given a chance you didnt take it. Actually the state of the fuel has alot to do with it that is part of themodynamics which I did teach by the way thats why I have that data on another computer.
dieseldave:
Carryfast:
As no one seems to be able to think for themselves without consulting the wiki lot these days I’ve done the best that I can in finding the info you’re asking for.Hi Carryfast,
I’ve no need to consult wiki for the point I’m making, because I’m still trying to understand what you’re saying before I make a point.
Without me making any assumptions, I’ve asked you a very straightforward question:
Are you saying that the normal running temperature achieved by a normal diesel engine would be hot enough to ignite/detonate a petrol/air mixture by compression igniton alone?
What I’m saying is that the ‘combination’ of factors such as heat and compression pressures in a diesel engine,which are designed to ignite and burn a charge of diesel fuel,can (probably would) detonate a charge made up of high octane fuel designed to be ignited and burnt in a spark ignition engine which has a totally different set of factors designed for use of that type of fuel.You’re not going to believe me so just ask any diesel engine/truck manufacturer if the engine’s warranty would be upheld if you decide to run the thing on LPG instead of Diesel.Simples.
Brentanna:
high octane fuels (resistance to ignition and burning under compression ignition) are’nt designed to be used in compression ignition engines
Um carryfast see the above
Then I really must be on the wrong planet for thinking that 100 octane petrol is designed for spark ignition petrol engines and 50 + Cetane diesel fuel is designed to be run in Diesel engines.
I point you back to what you said in the EPIC FAIL
Read what you said and yes you have to be on another planet because the physics and thermodynamics on this one dont match what you are saying.
Here I hold your hand so you dont get lost.
high octane fuels (resistance to ignition and burning under compression ignition)
now want to explain how a fuel that is resistant to ignition and burning in a compression engine, being ignited by a 5% diesel firing will not work ?
Brentanna:
Read what you said and yes you have to be on another planet because the physics and thermodynamics on this one dont match what you are saying.
So thermodynamics say that we use high octane petrol in diesel engines and diesel fuel in high compression petrol engines 
. 
you are too funny for words you should do standup this slick would have them rolling in the iles.
So thermodynamics say that we use high octane petrol in diesel engines and diesel fuel in high compression petrol engines
Yup when the principles of physics is applied
Brentanna:
Here I hold your hand so you dont get lost.high octane fuels (resistance to ignition and burning under compression ignition)
now want to explain how a fuel that is resistant to ignition and burning in a compression engine, being ignited by a 5% diesel firing will not work ?
I already have explained it it’s just that you need to be working on the Starship Enterprise because you’re way ahead of me.I’m staying in the 20th Century where I belong.
Brentanna:
So petrol and diesel are distallates of the refining of crude oil,
I knew that. The higher up the refraction(?) tube, the lighter the product. i.e. Diesel (32 seconds) comes off before Kersosene (28 seconds).
Will look at the FL engine link in due course, thank you. Most of the ones in the uk used for truck loading/unloading are gas only.
heavy fuel or bunker oil is the resudual components of refining of crude oil.
Thank you, only that short answer needed.
(and thanks to the person who came up with the name bunker fuel above) that’s what I was looking for.
What is bunker oil used for today? It it still used in large commercial heating boilers?
I think there are less ships, certainly passenger liners using it now as operators have had to clean up their exhausts.
( who’s seen a ship coming over the horizon when you see the black smoke plume before you see the ship?)