Minggu, 09 Januari 2011

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♣ I think Coal can be one of the electrical energy producting alternatives to bio gas..
because this time usage of oit is too severe,for the usage of oil should be limited, and look for alternatives such as coal
Advantages of coal compared to crude oil is:
-Efficiency to 80% compared with diesel fuel

-Heat / energy produced reaches a high temperature to 1300 ° C
-Provided the temperature is stable and easily controlled
 
"but its use should be limited, considering that coal is the source of non-renewable. Coal is mined do not need an all-out as it is now only for export purposes. Coal should be mined and processed just enough to enhance its economic value."

source:http://www.greenmining.or.id/index.php?option=com_content&view=article&id=309&catid=90&Itemid=107

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