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  1. Join Date
    Feb 2008
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    144
    #1
    please wag nyo po muna 'tong pagtawanan. serious po ako.


    mga experts, help naman po. meron kasi kaming thesis proposal at ito ang biglang pumasok sa isip ko. kelangan ko tong i-defend kasi. hindi ba ang kelangan lang naman ng turbo eh hangin? i was thingking na sa electric motor lang rin ng aircon manggagaling ang intake ng turbo. can this be possible? ang purpose nito eh para makatipid sa kuryente by not using the max power of the electric motor and instead use the boost of the turbo

    what do you think guys? kung hinde pwede, magiisip nalang ako ng ibang thesis proposal. any other suggestions? pwede rin sa life science.



    please reply asap
    TIA!

  2. Join Date
    Jan 2009
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    6,452
    #2
    On cars, the turbo captures the high velocity exhaust gasses to turn a turbine. A second turbine connected to the same shaft sucks air for the intake, providing an exponential increase in intake air pressure. This in turn makes the engine produce more power and the cycle continue.

    The one you're proposing will not work simply because there's no combustion or high-velocity air present to turn the turbo.

  3. Join Date
    Feb 2008
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    144
    #3
    Quote Originally Posted by oj88 View Post
    On cars, the turbo captures the high velocity exhaust gasses to turn a turbine. A second turbine connected to the same shaft sucks air for the intake, providing an exponential increase in intake air pressure. This in turn makes the engine produce more power and the cycle continue.

    The one you're proposing will not work simply because there's no combustion or high-velocity air present to turn the turbo.

    thanks sir! so kelangan eh napakalakas pala na air flow ang gamitin para mapaikot yung turbo. i thought the air coming from the fan of the aircon is enogh.

    BTW, any other titles you may suggest?

  4. Join Date
    Jun 2008
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    #4
    What about using the turbo to turn the a/c compressor?!?

  5. Join Date
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    #5
    Quote Originally Posted by roberto_minosa View Post
    What about using the turbo to turn the a/c compressor?!?
    Same problem. There's no exceptional force enough to turn the turbo to be of much use.

    The way it works on cars, the air intake velocity is not the same as the exhaust velocity. The exhaust velocity is much, much stronger due to air+fuel combustion. Combined that with the hot exhaust manifold, it makes for a very fast-moving exhaust gas. The turbo is there to harness that energy and everybody pretty much knows what happens next.

  6. Join Date
    Jun 2006
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    6,104
    #6
    Since may fully electric auto aircon na, try mo mag venture sa Solar AutoAC.

    This is useful when parking in the desert or hot open parking areas.

  7. Join Date
    Oct 2002
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    29,354
    #7
    Quote Originally Posted by angbatangobong View Post
    mga experts, help naman po. meron kasi kaming thesis proposal at ito ang biglang pumasok sa isip ko. kelangan ko tong i-defend kasi. hindi ba ang kelangan lang naman ng turbo eh hangin? i was thingking na sa electric motor lang rin ng aircon manggagaling ang intake ng turbo. can this be possible? ang purpose nito eh para makatipid sa kuryente by not using the max power of the electric motor and instead use the boost of the turbo

    what do you think guys? kung hinde pwede, magiisip nalang ako ng ibang thesis proposal. any other suggestions? pwede rin sa life science.


    People with no proper grasp of basic concepts of mechanics and physics shouldn't even try designing a machine.

  8. Join Date
    Oct 2002
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    #8
    Quote Originally Posted by angbatangobong View Post
    BTW, any other titles you may suggest?
    What is your major?... mechanical engineering?

    Anyway, try to google "MINATO MOTOR" and check out the concept and videos.
    Last edited by ghosthunter; June 13th, 2009 at 12:09 PM.

  9. Join Date
    Jun 2006
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    #9
    Quote Originally Posted by ghosthunter View Post

    People with no proper grasp of basic concepts of mechanics and physics shouldn't even try designing a machine.
    That's what schools and studying through experimentations are for.

    Most of the useful things we have today were first thought to be crazy or stupid by the supposed intellectuals of the past.

    of course, those clowns are now regarded as fools long after they have died.

  10. Join Date
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    #10
    Quote Originally Posted by Horsepower View Post
    That's what schools and studying through experimentations are for.
    Back in college and even high school, I already had a good grasp of science and mechanics enough to know what can and cannot work.

    BTW, this guy is already going for his thesis, hence he should already have been given the basics of mechanics and physics and even chemistry. YET if he doesn't yet know how to combine these FUNDAMENTALS into something functional in theory, how else can he even make a totally original concept design???



    Most of the useful things we have today were first thought to be crazy or stupid by the supposed intellectuals of the past.

    of course, those clowns are now regarded as fools long after they have died.
    PLEASE let us NOT go back to the DINGLE discussion again because THAT is the direction where this discussion would be headed in a few replies.

    There is a big difference to what people knew 100 years ago and 50 years ago. What the TS is asking for is something even a mechanic from 50 years ago can answer effectively.

    We live in a modern world where it only takes one idiot to press the wrong button to bring it all crashing down.
    Last edited by ghosthunter; June 13th, 2009 at 12:18 PM.

  11. Join Date
    Aug 2004
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    22,702
    #11
    Well... it's simply how much power the electrical motor has. To be an effective turbocharger on a 1.5 to 2.0 liter gasoline engine, a turbocharger has to have about 25 hp of effective power. That's how much power it takes an engine to turn a supercharger... and that's how much power, thermally, a turbo draws from the exhaust... but since the exhaust is wasted gas velocity and heat, anyway, it's effectively "free" energy.

    There's only one company in the world which has even seriously tried to make an electric turbocharger. And even then, it took a custom-wound, hyper-expensive, 15 hp triple-electric motor to do it... and working off a battery pack five to ten times as heavy as the stock battery system, it only had enough juice for one minute of use before needing a recharge. The car's 12 volt system simply didn't have the juice to run it continuously.

    Ang pagbalik ng comeback...

  12. Join Date
    Oct 2002
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    #12
    yup... serious power required to turn it.

    Thomas Knight Turbo Electric Supercharger:


  13. Join Date
    Feb 2008
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    144
    #13
    ayoko na.


    BTW, thanks for the useful post.

    sir GH, Im only a 4th year high school student and we(its a group work) need 2 physical science and 2 life science title proposals. however, only 1 out of those 4 needs to be approved. maraming salamat po talaga sa pag gising sakin sa katotohanan

  14. Join Date
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    #14
    Quote Originally Posted by angbatangobong View Post
    sir GH, Im only a 4th year high school student and we(its a group work) need 2 physical science and 2 life science title proposals. however, only 1 out of those 4 needs to be approved. maraming salamat po talaga sa pag gising sakin sa katotohanan
    Ok, you're younger than I expected (I was expecting someone from college).

    Does your physics science proposal have to be practical just simply theoretical? If theoretical is acceptible, why not build a basic hovercraft based on leaf-blower motor or even toy motors with model airplane propellers (if the chassis is light enough).

    Back in my 1st year of college, I helped my HS friend do his 4th year science project by building him a basic hovercraft using model airplane props, toy motors and lots of styrofoam, sheet plastic (plastic bags) and some cardboard. Power came from a 12V 3amp power supply that had a voltage selector.

    Another project I helped was "hydraulics project" using a number of syringes, plastic hoses, thick wire, some epoxy glue and water. We used the syringes with thick wires glued on as cylinders to move a model "hand" using the force from moving another set of syringes. Having different sized syringes gave either more movement or more force. In this project, you can model a robotic arm and gripper instead of a simple "hand" to make it more "current" and high tech.

    You can make the "robot arm" cooler by making a frame to attach to your arm and installing one set of syringes on the frame. That way, you can control the robot arm directly by moving your arm and hand. Just make sure your joints, glue and hoses are strong and long enough.

    As for my own HS project, nothing more complicated than a solar powered clock made from parts I just salvaged from stuff I found including solar cells, big screen digital clock, Ni-Cd batteries I bought, a 3.0v voltage meter and some capacitors. I got an "A" since my prof then was very interested in solar powered gadgets (and stuff like it wasn't yet as common as today).

    I wonder how a potato powered clock would fare with your teacher? (BTW, you can replace the potato with other fruits and it would work just as well).
    Last edited by ghosthunter; June 14th, 2009 at 05:40 PM.

  15. Join Date
    Jun 2007
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    1,343
    #15
    ayun.... eh kasi 'thesis proposal', so pang bachelor's degree ang dating.

    pero basa ko na kailangan mo ang tulong sa group project nyo.

    well baka may naitulong ang mga expert dito sa stikot. good luck. huwag lang mabasa ng teacher mo ito

    it reminds me doon sa collegue ko na software consultant at nabanggit nya.. 'ano kaya kung iimbento tayo ng aircon jacket?..' then sagot ko. 'you must be crazy..' at umabot sa inexplain ko sa kanya ang basics on how to produce "cold" that you have to turn liquid into gas and you need portable-lightweight-very compact compressor and power source/battery etc..etc.. sagot nya 'I KNOW!!!' pero halata kong di nya naisip yun bago magbitiw nun. anyway we parted with an agreed idea of aircon jacket ng mc rider. not bad di ba? syempre nasa mc na yung most of aircon parts then nasa jacket na yung circulating cold air.

    well how about that? aircon jacket for motorcyle rider.

    uyyy!! pag nasa market na ito someday don't forget me ha?
    Last edited by dbuzz; June 14th, 2009 at 06:28 PM.

  16. Join Date
    Jan 2006
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    2,105
    #16
    Turbo generates heat, because of blah blah..., kahit possible payan. hindi na malamig aircon mo.

  17. Join Date
    Jan 2007
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    2,326
    #17
    What about a scale-model, short but working electro magnetic train? Puwede pa yun gawing laruan kung sakali ...

  18. Join Date
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    #18
    Quote Originally Posted by pup2 View Post
    What about a scale-model, short but working electro magnetic train? Puwede pa yun gawing laruan kung sakali ...
    Tried making this back in high school.

    Magnetic levitation train or a model to demo it. Difficult to space the magnets properly. Requires precision placement and good quality magnets as well. Toy magnets tend to vary in the "gauss" value.

    Electro-magnets also generate LOTS of heat (maybe because I was too ambitious to making powerful ones). I made a few test sets of electromagnets to see how much heat and power I would require and what cooling can be used. I ended up with a lot of melted coils of wire. Even using the coils underwater didn't stop the coils from overheating.
    Last edited by ghosthunter; June 15th, 2009 at 06:16 PM.

  19. Join Date
    Apr 2008
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    2,254
    #19
    guys 4th yr highschool din! i need some science experiments or kinda thesis tnx!

  20. Join Date
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    #20
    Quote Originally Posted by kevin3000 View Post
    guys 4th yr highschool din! i need some science experiments or kinda thesis tnx!
    Just choose from what I mentioned a few posts before.

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turbo na aircon?