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  • Users: azmios
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  1. azmios

    effect of flame speed on co-02 mixture with water vapor

    Tmoose, There is another debate going on in water+methanol by Slim3. Slim3 reported that there is no change in parameter other than injecting the water+methanol.
  2. azmios

    effect of flame speed on co-02 mixture with water vapor

    Are you saying that H2O2 can be reacted with fuel at ambient temperature? The keyword like fuel autoignition temperature is actually the activation energy required before fuel auto ignition can occur. Feel free to disagree with me. There you go again, why do you have to resort into personal attack?
  3. azmios

    Water injection and alcohol fuel

    Air, why does it have to be related to me and my flaw in character? Cant we just stick to the points in this debate? While many have tried injecting methanol+air in real life, has anyone came up with convincing scientific reasoning to answer the questions that myself and Slim3 are asking? I...
  4. azmios

    Water injection and alcohol fuel

    pat, if you inject water in the combustion chamber at 50C compared to 25C. It will take lesser heat to get another 50C and turn it into steam to make work. Theoretically any secondary heat source that can be used to increase the water temperature is now valuable.
  5. azmios

    Water injection and alcohol fuel

    not really, even when the steam is blown out through the exhaust gas, it can be recovered through a condenser and there is significant amount of thermal energy that can be recovered and reintroduced into the combustion chamber.
  6. azmios

    Water injection and alcohol fuel

    pat, i see it differently. The reward in gas expansion is the reward to a small price that we have to pay in the form of latent heat of evaporation. After all, the process is reversible. You cant do the same with combustion process, once it happens, it is not reversible.
  7. azmios

    Water injection and alcohol fuel

    Slim3, Our questions about the link between water+methanol and power have not been answered yet. Will it be possible for you to measure the exhaust gas temperature right after the exhaust port. If we can compare the exhaust temperature with and without the water injection, it will shed some...
  8. azmios

    Water injection and alcohol fuel

    Air, "Injecting water after the burn can be done. The steam expansion is now mostly in the exhaust tract and can be utilized by a bottom cycle motor like a turbocharger. The efficiency of this is not as good as a piston motor." It all depends, I am inclined to have water to be injected upward...
  9. azmios

    Water injection and alcohol fuel

    Pat, "Remember, while the system is pressurised, no more water or air can be added without depressurising first. At least not without an extra pump that also takes power to drive. " typical DI injector injects at 150-200 bar. Water is best to be injected when the intense heat release is...
  10. azmios

    effect of flame speed on co-02 mixture with water vapor

    Hi Air, I have my own reason for not using hydrogen peroxide. It needs to be reacted with enough activation energy before we can use it. Oxygen is much simpler to use and control. When I made my comment, you have to look into the context of why injecting water makes more power even when there...
  11. azmios

    Water injection and alcohol fuel

    pat, i feel sorry for you. I guess when people bring machine guns to a technical debate with the intention to shoot people that do not share the same opinions or belief as you do, other innocent bystanders tend to get hurt. Even people with the honest intention to debate will tend to fight back...
  12. azmios

    Water injection and alcohol fuel

    "Without changing the fuel mixture at all and not advancing ignition timing at all to take advantage of any octane rate increase due to my added injection of 50/50 water/ethanol alcohol, why did I receive much additional power on two different engines that I tried it on? I know it was not a...
  13. azmios

    Water injection and alcohol fuel

    Air, It's good that you made some comment about the personal attack. I hope that people who earlier wrote about the "blind squirrel" and accusing people with BS will take notice. Frankly I dont enjoy much responding to other people's personal attack but if it is necessary to make others...
  14. azmios

    effect of flame speed on co-02 mixture with water vapor

    air, If you notice, people like me and Slim3 always believe that there must be some other unexplained phenomena that increases the horsepower more than what is achievable by just extending the knock limit. So far, no researchers have investigated the effect of water itself in the combustion...
  15. azmios

    Water injection and alcohol fuel

    hemi, Sorry for that, the unit is kJ/kg*K.
  16. azmios

    radiator inlet/outlet ratio

    Air, In the place where I work, the old school F1 aerothermal engineers believe in opening the outlet as big as possible. The younger ones who came across Adrian Newey's "chimney" outlet believe otherwise. Both have their own reasoning. The recent high performance production cars also have the...
  17. azmios

    effect of flame speed on co-02 mixture with water vapor

    Maxc, Thanks a lot. I should slap myself for not coming across this paper in my younger days. Anyway, I am trying to get any technical publication with regard to the WW2 Japanese long lance torpedo. The engine is rumored to work on oxygen and water. It travels faster and further than any...
  18. azmios

    Water injection and alcohol fuel

    hi pat, Agreed with you, the British and Germans injected methanol+water in their supercharger engines during take off. This is covered in Charles Taylor's text book. If you flip through MTZ about 8 years ago, German government funded a research to compare the steam engine and IC engine. IC...
  19. azmios

    Water injection and alcohol fuel

    air, gas constant R does not have any unit. just flip the thermodynamics books. the efficiency of oxygen generator is high. coal power plants in china are already using PSA generator to get oxygen. they get intense flame from coal that is much cleaner if compared to air. also you should...
  20. azmios

    Water injection and alcohol fuel

    hemi, I will quote something from Turner's paper once I am back in the office on monday. The nasa paper is different from a piston engine. However, if we look at it from the point of view of heat engine, there is not much different, there is compression, ignition and expansion. I know that...

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