Secret Of The Perfect Fire Revealed

Posted: Jun 8 2015, 6:10am CDT | by , in News | Technology News

 
Secret of the Perfect Fire Revealed
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A Duke University professor unraveled the secret of the shape of a perfect fire.

Mastering Fire is what has set us apparent from the animal kingdom. Making the perfect fire seems a skill that has been adopted by humans since ages and is still readily available to us today. Everyone builds fires in the same shape. Now a Duke Universit professor has found out why that is.

In a study published in Nature Scientific Reports on June 8, Adrian Bejan, the J.A. Jones professor of mechanical engineering at Duke University, shows that, all other variables being equal, the best fires are roughly as tall as they are wide. This is why, he argues, everyone has built fires that basically look the same since the dawn of time.

"Humans from all eras have been relying on this design," said Bejan. "The reason is that this shape is the most efficient for air and heat flow. Our success in building fires in turn made it possible for humans to migrate and spread across the globe heat flow from fire facilitates the movement and spreading of human mass on the globe, which is a direct prediction of the Constructal Law."

Perfect Fire

In 1996, Bejan penned the Constructal Law that postulates that movement -- or 'flow' -- systems such as trees, rivers or air currents evolve into configurations that provide easier and easier access to flows. Now internationally recognized, the law is increasingly finding applications in improving design and maximizing efficiency of manmade systems.

Bejan continued, "Our bonfires are shaped as cones and pyramids, as tall as they are wide at the base. They look the same in all sizes, from the firewood in the chimney, to the tree logs and wooden benches in the center of the university campus after the big game. They look the same as the pile of charcoal we make to grill meat. And now we know why."

The paper containing the research details will be released today in Nature Scientific Reports.

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The Author

<a href="/latest_stories/all/all/2" rel="author">Luigi Lugmayr</a>
Luigi Lugmayr () is the founding chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com.

 

 

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