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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why use a carbon wrapped barel?
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<blockquote data-quote="UniqueUserName" data-source="post: 2071072" data-attributes="member: 92845"><p>A fat piece of metal will have greater thermal capacitance. It will absorb a greater amount of thermal energy to reach a given temperature and tend to hold it longer. If you put the same amount of thermal energy into a smaller mass of the same material, it's going to get a lot hotter, faster and will tend to cool faster because of the greater temperature differential and the lesser ratio of mass to surface area. It's the peak temp that's going to destroy things. Now if you take that skinny tube, wrap an insulating blanket around it and dump the same amount of thermal energy into it, it's still going to get very hot, but now it will cool much more slowly due to the reduced rate of thermal transfer through the insulator. It's going to have a much lower surface temp because of the slower thermal transfer, but it's going to be much hotter and stay hotter, longer at the bore. But yes, starting at a given temperature a skinnier piece of steel will lose heat more rapidly than a fat piece of steel, but the fat piece of steel will absorb a much greater amount of thermal energy before it reaches the same temp as the smaller piece of steel.</p><p></p><p>BTW: I know enough about farming to know that it requires a lot of smarts to be successful at it.</p></blockquote><p></p>
[QUOTE="UniqueUserName, post: 2071072, member: 92845"] A fat piece of metal will have greater thermal capacitance. It will absorb a greater amount of thermal energy to reach a given temperature and tend to hold it longer. If you put the same amount of thermal energy into a smaller mass of the same material, it's going to get a lot hotter, faster and will tend to cool faster because of the greater temperature differential and the lesser ratio of mass to surface area. It's the peak temp that's going to destroy things. Now if you take that skinny tube, wrap an insulating blanket around it and dump the same amount of thermal energy into it, it's still going to get very hot, but now it will cool much more slowly due to the reduced rate of thermal transfer through the insulator. It's going to have a much lower surface temp because of the slower thermal transfer, but it's going to be much hotter and stay hotter, longer at the bore. But yes, starting at a given temperature a skinnier piece of steel will lose heat more rapidly than a fat piece of steel, but the fat piece of steel will absorb a much greater amount of thermal energy before it reaches the same temp as the smaller piece of steel. BTW: I know enough about farming to know that it requires a lot of smarts to be successful at it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why use a carbon wrapped barel?
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