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Discussion: change advances

  1. #181
    THE AVERAGE USER L'avatar di cicciogsr
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    munro if you can create a loop to your liking hats off.. us poor guys here try to nibble away at the coef yet that has used the manufacturer to increase the performance..fregandocene of pollutant emissions and, many times, as well as consumption...

  2. #182
    THE ACTIVE USER L'avatar di munro
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    Citazione Originally Written by dott.chem Visualizza Messaggio
    That heat, as you say, it serves to trigger the combustion process. It is one of the parameters which I wrote before, it depends on the speed? a rection. I would not want to enter too much in details, but in the specific, is changed to the factor pre-exponential of the "constant reaction kinetics".
    And as if by increasing the temperature the better the trigger. But there? is worth at the beginning of the injection, while you can not improve the initiation of a reaction already? primed... don't you think?
    doc-I'm sorry, I don't want to break the bales but we discuss so try to understand as much as possible and all the answers you have reported this ? that the less I understand...i.e. leaving for a atimo lose the diesel engine and talking about the reaction already triggered your example that you can't? improve I immediately think of the atomic bomb..the cio? to trigger this weapon is tremendous made of plutonium and uranium,which I remember explodes in "free air", serves as a primer of tnt to start the process...bh? in this case, the tnt that triggers further cleaning procedures chain is literally "outclassed" from the plutonium in the bomb...
    why this not ? you can in the engine?? the cio? for example, the americans in their drag top fuel used to mix with the methanol of the nitroglycerin from where to get the nitromethane..according to me, the methanol in this case it triggers the charge, but the nitro power just like the example of the bomb...why not ? can do the same with the diesel that once vaporized at high pressure in contact with high temperatures already triggered it will continue? to release heat and pressure?? and as if to a fire to put it as "chris" adding diesel fuel, the result would be a fire even more great and powerful of that? if it were not for the drain valve, open the "tank"(the cylinder) the engine would explode..but why not to check this explosion with the multiniezioni to have as much as said?
    Last edited by munro; 08-12-2012 at 22:35
    A rider does not create queues even in the car...
    a automoblista create queues even on a motorcycle...

  3. #183
    THE AVERAGE USER
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    munro I'll give you an example..after the great success of the lift and of the child with the balloon!!!!
    You as a baby did you use to throw the balls of paper with the pen (biro) removed (blowpipe)... you soffiavi and the palliina started but after coming out of the pen and walked away, for example, 1 centimeter, the force of the air had the most effect on the ball.. and the air of the buttavi simply in the environment..

    I know that soon I'll open up my post with all of these examples!!!! more than this, I can't explain down-to-earth..
    In a world of crazy normal is crazy

  4. #184
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    LOL the eye that the nitromethane ? a molecule is obtained by mixing nitro-glycerine and methanol. Nitroglycerine as such ? very unstable, I figured if they put it in an engine

    Apart from this pleasant digression, to explain is not ? simple, and I realize that to understand can? be equally as difficult. If we add to this the fact that to explain things are not good, we are ruined.

    We feel differently:
    Imagine our web portal allows you to a regime any hypothesis-4000 revolutions per minute.
    Imagine now finish the injection exactly to the upper dead point.
    Hypothesis 1: (random numbers) To burn perfectly the deal? of heating oil that you entered ? need a second 1s
    Hypothesis 2: (random numbers) To open the drain valve to the scheme are required to 1.1 seconds (considering when is the end of the injection phase, which coincides with the top dead point)

    Result: no problem. Everything is running smoothly.

    Let's get in the second case, for example, the injection phase ends 15? ATDC
    Hypothesis 1: (random numbers) To burn perfectly the deal? of heating oil that you have entered (the same as before) ? need a second 1s.
    Hypothesis 2: (random numbers) To open the drain valve to that regime are still needed to be 1.1 seconds, but always from the upper dead point, that is not the same pi? with the phase of end of injection.

    In practice and as if the valve is opened after only 0.9 seconds from the end of injection (random numbers)

    Result: the diesel brucer? still for 0.1 seconds after that ? open the drain valve.

    Really? the situation ? the worst of it as described because? complicated by a number of factors.

    You can improve the thing by throwing air at the storm inside the cylinder, or still better by improving the quality? diesel, by adding molecules that are capable of burning quickly, and by improving the atomization of the fuel.
    The motions of the swirl, in their turn, allow to improve the combustion allowing for a pi? effective mixing of air with fuel. Apart from this, c'? little to do

  5. #185
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    chem .. ? the most beautiful my example!!!!!!!
    In a world of crazy normal is crazy

  6. #186
    THE ACTIVE USER L'avatar di munro
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    doc you are a great and I understood everything perfectly without examples that are difficult to understand(chriswhat you're saying, if I understood well the message ?:inject 50mm3 of diesel at one time with the injection that starts at 20? before tdc and ends at 0? or pms precise ? the same thing to inject 25mm3, and 25mm3 times slightly different but still going to go very close just short of the final time in degrees of fuel injection? maybe when the load of the diesel fuel, and already "pretty hot"???
    I'm not convinced...
    A rider does not create queues even in the car...
    a automoblista create queues even on a motorcycle...

  7. #187
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    my mom... ( DELETED)for the ennesiama time.. you can inject up to a maximum of 10? after tdc..then depends on the configuration of the cams..but the ceiling ? this.


    PLEASE, DO NOT USE OFFENSIVE WORDS AS BY THE RULES AND REGULATIONS!!!
    Last edited by giarras; 09-12-2012 at 10:45
    In a world of crazy normal is crazy

  8. #188
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    Correct, not ? the same thing. To aggravate the matter with two injections subentrerebbero other factors.

  9. #189
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    Citazione Originally Written by Chris156 Visualizza Messaggio
    my mom... ( DELETED)for the ennesiama time.. you can inject up to a maximum of 10? after tdc..then depends on the configuration of the cams..but the ceiling ? this.


    PLEASE, DO NOT USE OFFENSIVE WORDS AS BY THE RULES AND REGULATIONS!!!
    I don't think I have written no word offensive.... the word elimitata ?: AGAIN I SAY TO YOU!!!!!
    Maybe you confused!!!!
    In a world of crazy normal is crazy

  10. #190
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    the game is not worth the candle

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