Worlds Smallest Petrol Engine fits your watch, runs for years

Geek

Chief Minister (5k+ posts)
Worlds Smallest Petrol Engine:

223990_10150844895742245_924107266_n.jpg



Scientists have created the smallest petrol engine in the world ( less than a centimeter long not even half an inch ), small enough to power a watch or any small gadget. The mini-motor, which runs for two years on a single squirt of lighter fuel, is set to revolutionize world technology. It generates 700 times more energy than a conventional battery. It could be use
d to operate laptops and mobile phones for months doing away with the need for charging. Experts believe it could be phasing out batteries in such items within just six years. The engine, minute enough to be balanced on a fingertip, has been produced by engineers at the University of Birmingham.


At present, charging an ordinary battery to deliver one unit of energy involves putting 2,000 units into it. The little engine, because energy is produced locally, is far more effective. One of the main problems faced by engineers who have tried to produce micro motors in the past has been the levels of heat produced. The engines got so hot they burned themselves out and could not be re-used. The Birmingham team overcame this by using heat-resistant materials such as ceramic and silicon carbide.


Professor Graham Davies, head of the universitys engineering school, said: Weve brought together all the engineering disciplines, materials, chemical engineering, civil engineering, and mechanical engineering. What better place to have the second industrial revolution in nano-technology than where the first took place, in the heart of the West Midlands.


Dr Kyle Jiang, from the Department of Mechanical Engineering, said:We are looking at an industrial revolution happening in peoples pockets. The breakthrough is an enormous step forward. Devices which need re- charging or new batteries are a problem but in six years will be a thing of the past.
 

EniGma90

Minister (2k+ posts)
[MENTION=10307]Geek[/MENTION] ye sab cheezain yahan share na kia karo dost, its siasat.pk... thread banao kay nawaz ganju nay aj kia kaha, imran khan nay aj kia phena, malik riaz or cj ney kia khaya... ye sab baikaar ki cheezain yahan share na kia karo ;) btw i read it about a year ago...
 

insaf-seeker

Minister (2k+ posts)
kehtay hain "Zarorat Ijaad ki maa hai" (Necessity is the mother of invention) lakin humaray jaisay mawsheray mein tao Zarorat bhi Intezar ki maa hai, kub koee sasti bijli paida kernay ka koee tareeqa ijaad keray ga aur phir humain iss load shedding sey nejad hasil hogi
 

imm_arshad

MPA (400+ posts)
Heard sometime back about "Engine On Chip" developed in MIT.
http://web.mit.edu/newsoffice/2006/microengines.html
This one seems extension of this.

However, found interesting comment from yahoo on this article, sharing below:

//Quote from Yahoo
Sounds serious. To check a number or two, my portable PC uses about 50 watts of power.
Gasoline has energy capacity of 35 MJ/L. A "squirt" I'll define as 1 cm, and there are 1000 of these in a liter. So a squirt of gasoline would hold 35 kJ of energy. A gas engine is 30% efficient, about, so that is 10 kJ available to power the laptop.

50 watts is 50 J/s
10 kJ / 50 J/s = 200 seconds, or 3 minutes. Hardly the months promised.

For 2 months, 5e6 seconds, using the numbers above, you would need
50 J/s x 5e6s = 250e6 J.
converting that to gasoline, that is
250e6 J x 3 / 35 MJ/L = 15 liters of gasoline, hardly something you would want to carry around with your computer.

My guess would be the engine is real, but the article was written by a news reporter who exaggerated things a bit.

//Unquote

Worlds Smallest Petrol Engine:

223990_10150844895742245_924107266_n.jpg



Scientists have created the smallest petrol engine in the world ( less than a centimeter long not even half an inch ), small enough to power a watch or any small gadget. The mini-motor, which runs for two years on a single squirt of lighter fuel, is set to revolutionize world technology. It generates 700 times more energy than a conventional battery. It could be use
d to operate laptops and mobile phones for months doing away with the need for charging. Experts believe it could be phasing out batteries in such items within just six years. The engine, minute enough to be balanced on a fingertip, has been produced by engineers at the University of Birmingham.


At present, charging an ordinary battery to deliver one unit of energy involves putting 2,000 units into it. The little engine, because energy is produced locally, is far more effective. One of the main problems faced by engineers who have tried to produce micro motors in the past has been the levels of heat produced. The engines got so hot they burned themselves out and could not be re-used. The Birmingham team overcame this by using heat-resistant materials such as ceramic and silicon carbide.


Professor Graham Davies, head of the university’s engineering school, said: We’ve brought together all the engineering disciplines, materials, chemical engineering, civil engineering, and mechanical engineering. What better place to have the second industrial revolution in nano-technology than where the first took place, in the heart of the West Midlands.


Dr Kyle Jiang, from the Department of Mechanical Engineering, said:We are looking at an industrial revolution happening in peoples pockets. The breakthrough is an enormous step forward. Devices which need re- charging or new batteries are a problem but in six years will be a thing of the past.
 

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