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vir540
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Coal Fineness

12/28/2012 4:51 PM

Does coal finess has any relation with your plant MW. Does fineness vary for subcritical and supercritical boiler...??

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lyn
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#1

Re: coal fineness

12/28/2012 5:00 PM

No, and maybe.
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James Stewart
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#5
In reply to #1

Re: coal fineness

12/29/2012 12:00 PM

After Christmas, I am sure coal fitness also comes into play. Fat coal does not work well in fluidized bed combustion.... ha ha ha.

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Re: coal fineness

12/28/2012 6:04 PM

If the coal is delivered with finesse, Betty Botter's boiler will burn better.

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nvirciglio
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#3

Re: coal fineness

12/28/2012 6:34 PM

Poor coal Fineness can have a detrimental effect on boiler performance. A certain amount of BTU's is required to achieve steam temperatures/pressures. If the the fineness is poor, combustion will not be optimal and more fuel will be required to achieve the same heat requirement to achieve the desired MW.

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nvirciglio
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#4

Re: coal fineness

12/28/2012 10:37 PM

http://innovativecombustion.com/pulv_fitness.html

This has some good information on why good fineness is important. Basically, without optimal fineness, combustion will not be optimal. Doesn't matter if your Unit is sub or super critical.

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vir540
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#6
In reply to #4

Re: coal fineness

12/29/2012 10:32 PM

Thank you so much.....!!

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