Talk:Energy value of coal

This article needs a new title as well. How about "Energy value of coal"? Gene Nygaard 06:53, 18 Dec 2004 (UTC)

Intro
This article was tagged for context so I added an intro paragraph above the heading India. Now the material I just added should be reviewed for cleanup then the context tag can be removed (if this fixes it). RJFJR 17:21, 1 November 2005 (UTC)

I tweaked here and there, but mainly I dumped the India section since it already exists as Indian coal (as a cleanup article no less!). I tried to keep the important info that was specific to the article...but still needs work. But definately still needs work!!
 * Hard Raspy Sci 00:33, 15 November 2005 (UTC)

Cleanup and removal of text
I cleaned up the article as much as possible. I also removed the following body of text, as in its current state it is completely useless (please see patent nonsense for more information on this topic). If anyone has the knowledge to reword this information into a useful state and reinsert it back into the article, then by all means do so.

Deleted text:

====Empirical Relationship of GCV, UHV, and NCV==== *UHV: Useful heat value = 8900 - 138(A+M) *GCV: Gross Calorific Value = (UHV + 3645 -75.4 M)/1.466 *NCV: Net Calorific Value = GCV - 10.02M ::UHV, GCV, NCV in kcal/kg, &#8220;A&#8221; is %age Ash; &#8220;M&#8221; is %age Moisture.

Thanks. Mushin 21:19, 17 November 2005 (UTC)

So what is the energy value of coal?
An estimate of the actual value would be nice, if anyone has a number they are sure of. Assuming X% conversion efficiency, 1 ton of coal = X joules = X kWh? I wish I could find these numbers on the internet, but I am finding a lot of conflicting information.

THis forular to estimate the CV of coal is very useful, however we could do with some more information: - full reference for this Dulong chap - is the calorific value (Q) gross or net? - are the elemental contents (C, H, O and S) 'as received' or 'dry ash free' etc.

There are several other correlations which could go in to this article as well. Good start though.

Thanks, Hugh. —Preceding unsigned comment added by 217.158.168.198 (talk) 09:23, 11 April 2008 (UTC)

Radiation value of coal
There is a fair amount of radiation that comes out of the burning of coal. There are some efforts to use the radiated ash and refine it for nuclear power. Should this be mentioned here? —Preceding unsigned comment added by Reconbot (talk • contribs) 17:07, 5 May 2008 (UTC)