new-world-order
Apr 16 2006, 10:57 PM
I was watching the tele and the news came on so i just sort of watched the headlines and it was the usual stuff but still they are going on about oil and how its running out and i said to my mum "will they never shut up about this..." and then she replyed in the [its important though way]" its not as if our cars run on air is it"... and thats when it hit me surly you could power a car with air and i started to think about it and i thought of alot of different things and they where all your basic stuff nothing too complicated and then i realised if im going to come up with something big that might acualy come on i need to be more realistic so i thought about how the current engines work with the fuel being pushed into the pistons which made a small explosion which moved the pistons which in turn moved the crank shaft... when it hit me why not replace the fuel with bursts of air (just like a steam engine) and they would come out of a tank of compressed air.... i then realised how would the air be recompressed and had to sit down and think that on through and i cam up with a rather engeanious but simple idea, all you would have to do is put a pistion aside which powers another little motor and the motor would be used to recomress the air agian... of corse it would have to be stoped eventualy to recharge the starter motor but still i think i could get this to work i might even see if i could make a little go cart or sumthing like that lol ill post some pics if i can Please Talk excessivly on improvements i could make to my project
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mozzer
Apr 17 2006, 03:35 PM
There are a three problematic flaws in your plan. Firstly, you require a car to turn piston to have compressed air forced into an engine forcing down the pistion to achieve lower pressure. Firstly in a normal motor the air is brought in at normal pressure and the exploding fuel increases the pressure. What you want to do is increase the pressure and then decrease it. To do this you need to force the high pressure air in without a motor. Then you have the added problem of using some of the created energy (if you achieve any, see first point) to recompress the air. You say to solve the problem of the inachievable perpetual motion you "recharge" the engine. Again possible but would result in very little air/energy actually becoming useful. As in motion of the car. These cars would be slower and less efficient than normal cars. Finally, where does the energy come from to compress the air? My bet is that you say either electricity or something similar. These products also have problems in creating as currently the majority of electricity comes from huge plants buring oil or coal. To solve these problems you would need to create a differently designed engine to the current combustion engine and desgin on which could work on the principle of compressed air
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Blacklaser
Apr 17 2006, 04:45 PM
I agree with mozzer, your system won't work. The main problem is that compressed air isn't just floating around. To compress it we need to put energy into it, and then we use that energy to drive the car. What is providing the energy to compress the air? As mozzer pointed out... in the end you'll be back to oil. Also if you use 4 pistions to drive the car and one to power the compressor, the compressor only has enough energy to recompress enough air to fill one piston.
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Albus Dumbledore
Apr 17 2006, 05:04 PM
what mozzer and blackster are talking about is all gibberish to me  but anyways, from what they say, it wont work, but it would be cool if it were to work, no more gas to buy probably making everyone who supplies our oil over on the far side of the worl go poor...lol seems like a good ideal in some ways but bad in others.
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new-world-order
Apr 17 2006, 06:13 PM
The Compresser would be charged by a giro system running off the crank shaft it would be geared to take in anogth energy to power the compresser as needed due to the fact it wouldnt have fuel and even if ti did have fuel what a difference it woulf make think of how much fuel wouldbe saved all you would need is a small generater which can take about 8 hours to run dry from about 3 litres of petrol dont crititise other peoples ideas unless you ahve a better solution you self and albus thanks it is a rather cool idea besides there is an engine that runs on air as i have found out after googling for acouple hours ill post the blue prints for it and a pic of the engine dont automaticly asume everything will fail put a bit off faith into things:D Peace aaron
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Brian Gillingham
Apr 18 2006, 12:52 AM
I think that nearly anything should be considered. Possible sources of energy to drive these air compressers may be windmill, water turbines (dam), water mill (like wind mill, under water), solar, geo-thermal, kinetic, microwave.... (ok, getting carried away - Microwave?!). It is just great to see that there is much thought going into this. The sad fact is that this is only now being seen as a more urgent need. Most of the rest of the world has higher fuel standards for cars than America. It is just terrible to know that a large portion of people (making no assumptions about who posted here before me) are only now interested in these things because fuel is costing more by the day. If a country could pull together the resourcs to put a man on the moon in less than 10 years time, they could certainly solve some of our energy problems. I have heard about this car that runs on compressed air... can't remember any other details.
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mozzer
Apr 18 2006, 06:16 AM
I still cannot believe that a car can power itself on air that it has compressed itself. Show blueprints and then prove it. Make the car and I'll be less skeptical. From what I've read on the subject it requires pre-compressed air to inject. There is you key flaw
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anwiii
Apr 18 2006, 07:27 AM
QUOTE(new-world-order @ Apr 17 2006, 01:13 PM)  The Compresser would be charged by a giro system running off the crank shaft it would be geared to take in anogth energy to power the compresser as needed due to the fact it wouldnt have fuel and even if ti did have fuel what a difference it woulf make think of how much fuel wouldbe saved all you would need is a small generater which can take about 8 hours to run dry from about 3 litres of petrol dont crititise other peoples ideas unless you ahve a better solution you self and albus thanks it is a rather cool idea
besides there is an engine that runs on air as i have found out after googling for acouple hours ill post the blue prints for it and a pic of the engine dont automaticly asume everything will fail put a bit off faith into things:D Peace
aaron
well, not sure how all that would work bud but my advice to you is to keep your ideas somewhat to yourself if in fact you wish to pusue something like this. you don't want your ideas stolen and am sure would want the credit if you ever came up with something or even just an idea that would possibly work. nice name btw. you ever have a girl in your class named "erin" where you had to go by your middle name because you diddn't want to be associated with a girl during roll call? heheh i did
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brainless
Apr 18 2006, 08:25 AM
actually, some guy from around Spain had this idea 15 years before you and has his car almost ready for the market http://www.theaircar.com/
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anwiii
Apr 18 2006, 08:52 AM
QUOTE(brainless @ Apr 18 2006, 03:25 AM)  actually, some guy from around Spain had this idea 15 years before you and has his car almost ready for the market http://www.theaircar.com/interesting. i went to the site. wonder if they could make something that doesn't look like a bus. it's good to know though that the gas station attendants wont be out of business selling air for 2 dollars but then i believe they will need to sell more chips and slim jims soooooooooooo this go cart idea wasn't as far fetched as people thought i see....
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DogEater008
Jun 21 2006, 09:25 AM
yeah. .i read somewhere on bbcnews about a company somewhere in europe designed a car that runs on compressed air. I'm pretty sure it also run on gas because it needs an external energy to recompress the air. Well, to be more realistic, car running on air is kinda a bad idea even though it works because as the pressure in the tank decrease, the power of the car also decrease. An alternative is of course, hydrogen fuel. Honda designed a home electricity/heat/hydrogen generator. The generator connects to your already existed gas pipe and use that gas to generate electricty and heat. And of course, the most efficient way to extract liquid hydrogen is to extract it from gas (you can extract it from water but that would require more energy, unless you could find an effieicent way to generate electricity from solar power but then why not use the energy that is generate from the sun instead). So soon, you would have your own power plant / gas station right in your house.
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adriantc
Jun 21 2006, 07:57 AM
I'm sure there are a lot of great ways to end our need for oil.... But you must remember that today's world is built on oil. The economy of the world is based on oil. Everything works with oil (or a derived product of oil). If someone would say: "I've invented something that could totaly replace oil!" I'm sure the next day he will be dead. I've heard about the profits of the companies for the oil industries. Hundreds of billion (!) dollars profit every year. Many of them have a capital far larger them what most of the countries produce every year. In other words this companies have a far greater power then some guverments of the world. They run the world, not the puppets we call presidents and guvermentas. These companies will never let something or someone threaten their profits and power. Just like in the drug industry, where a complete cure is never good for the company. So for as long as there is a drop of oil left we will still use it. Alternative fuels will be used more and more, but the key parts of the world will still use oil. PS: Sorry for going off topic...
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pixieloo
Jun 20 2006, 08:57 PM
I know nothing about how cars work, lol. But I think if your idea were to work, it would be pretty cool. call me stupid, but if we can run out of oil, can we run out of air? xD
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new-world-order
Jun 20 2006, 05:13 PM
well it looks like ive sparked a bit of a disscussion now  im am sorry i havent been talking recently i have had computer problems and couldnt get on so i hope we can keep at it now i am back  the thig is i havent realy heard anything related to this lately but ill keep you posted any way
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moldboy
May 26 2006, 04:23 AM
I'm not sure but I think you're all confused (regarding the hydrogen fuel) To the best of my knowledge there is no engin on the planet that runs directly on hydrogen, as it was mentioned hydrogen is extremly flamable and the combustion would be very dangerous. What they do do however is use hydrogen to generate electricty in the fuel cell, as mentioned in the previous articly then it is just a matter of an electric car. Wolves, where you say that hydrogen combines with oxygen in the air to produce water, that doesn't really happen all that well, if you were to leave a jar of hydrogen gas exposed to oxygen it wouldn't all turn to water (well it would over time), at least not at once, it could take many years. But in the fuel cell a cataylist (genearly platnium) speeds this reaction up many times over and the recombination of H+ and O- ions causes the release of electrons which are then captured. Something to look at, I am looking at going to university in the fall, and one school sent a booklet that had the "Why we are special" apparently someone there had developed a technique of storing hydrogen embeded in solid carbon, or something of the sort, thus making it much safer to store and transport!
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