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Blue flame(air hole is open)
Yellow flame(air hole is close)
l hotter
l Less hotter
l noisy
l Quite
l non-luminous
l luminous
l irregular
l regular
http://www.greece.k1 2.ny.us/oly/chemistr y/Chemistry%20Icons/ Lab%20Apparatus/burn er%20parts.jpg
A luminous flame is [by comparison] a bright, light emmiting, usually yellow, flame. For example, if you light a match and watch it burn, this is a luminous flame.
A non-luminous flame is a flame in which the fuel is undergoing complete, or near complete, combustion. A non-luminous flame (as the name implies) is much darker than a luminous flame and does not emmit as much light. The color is generally blue and the flame temperature is much higher than that of a num-luminous flame.
One can easily adjust a busen burner or propane torch to make a non-luminous flame.
So, in short, the differences are in:
-color or the flame
-temperature of the flame
-percentage of fuel combusted
圖片參考:
http://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Bunsen_burner_flame_types_.jpg/300px-Bunsen_burner_flame_types_.jpg
圖片參考:
http://en.wikipedia.org/skins-1.5/common/images/magnify-clip.png
Different flame types of Bunsen Burner depending on flow through the throat holes (holes on the side of the bunsen burner -- not to be confused with the needle valve for gas flow adjustment). 1. air baffle closed (Safety flame) 2. air baffle half open 3. air baffle nearly fully open 4. air baffle fully open
參考資料:
http://en.wikipedia. org/wiki/Bunsen_burn er
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