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Gold/Mining/Energy : Gold Price Monitor

GDXJ 128.56

+6.1%

Feb 6 4:00 PM EST

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To: d:oug who wrote (40031)	9/4/1999 1:33:00 PM
From: Zeev Hed	Read Replies (2) of 116972

Doug, I am not sure how your coal/gas flame question relates to gold, but here is my take. In a gas flame you simply (try) to transfer the combustion energy directly to the meat, in a coal fire, the coal's temperature increases to about 800 to 100 C (depending how much air is drawn in), as a result the coal becomes a radiator in the infrared which penetrates better (thus faster cooking?) than the heat of combustion of gas that needs to be conducted through the meat. You get both radiation heating and normal heat trnsfer (conductivity etc.) with coal and only some heat transfer mechanism in gas. If you use the gas to heat a piece of black iron (or plates_ you should get similar results. Jenn Air has an electrical in house grill that heat such pieces of iron to red heat. Zeev

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