Comments on: Understanding Coal Analysis

By: vignesh kannan

vignesh kannan — Thu, 06 Aug 2009 11:23:48 +0000

sir,

Please clarify the formula which has been used for ADB(air dry basis) to ARB (as received basis).Please mail me the clarification.

Thanks & Regards,

Vignesh kannan

By: gagaan

gagaan — Tue, 04 Aug 2009 13:41:16 +0000

what is full form of GAR.
How do you calculate GAr value if we know the GCv on ADb basis .
We know total moisture and Im on ADB. what formulae do we adopt to calculate GAR. what is NAR.
appreciate your reply

By: Mike Smith

Mike Smith — Thu, 23 Jul 2009 15:31:08 +0000

Is there such a thing as an abrasion index and/or hardness index for coal ?. If so could you advise test methods.

Thanks.

By: Suneet

Suneet — Thu, 18 Jun 2009 08:38:04 +0000

Any Questions related to Coal Analysis are welcome on my email ID

By: PRADEEP TAMBE

PRADEEP TAMBE — Thu, 04 Jun 2009 05:27:19 +0000

I am attending one coal fire . Before fire coal ash was 24%. After fire extinguished by water,
samples were drawn and tested.Found that TM 5%, ash 38%. My understanding is that even if partly burnt coal is fully burnt in laboratory coal ash should remain same as 24%.
why there is increase ?

Please reply

Tambe

By: kami

kami — Thu, 21 May 2009 19:58:57 +0000

i want to understand the chemical analysis of
Pakistan coal located at Lakhra

By: brahma

brahma — Mon, 18 May 2009 19:22:05 +0000

thanks for above comments it helped me lot……………

By: selcuk

selcuk — Wed, 13 May 2009 14:47:51 +0000

Sir,

Beside above tests, there are some physical tests carried out for coal, such as Hard Grove Grindability Index and Abrasion Index

What are the requirements for these tests for a coal fired power plant with a CFB boiler

Thanks

By: adam

adam — Thu, 07 May 2009 08:34:23 +0000

hi, thank alot about this info.
can you described how the method coal analysis?

By: Granny Kanyeto

Granny Kanyeto — Thu, 07 May 2009 06:33:48 +0000

would you please give me the procedure on ultimate analysis using AAS

By: Granny Kanyeto

Granny Kanyeto — Thu, 07 May 2009 06:20:40 +0000

its my first time to visit your site. please send me the procedure on determining ultimate analysis using AAS

By: saman abbasi

saman abbasi — Mon, 20 Apr 2009 09:18:42 +0000

may i know the answers of my previous questions.

By: saman abbasi

saman abbasi — Thu, 09 Apr 2009 10:54:44 +0000

Sir, one more thing want to know
1) formula to determine total sulphur on as received basis, when pyretic sulphur, sulphate sulphur and organic sulphur is given.or do total sulphur has any relation to these sulphures during calculations
Thanks,for your time!

By: saman abbasi

saman abbasi — Thu, 09 Apr 2009 10:43:19 +0000

I need to know on how many basis does coal is classified and what are they and i also want the classification.
What are the tests required basically in proximate and ultimate analysis(list of the tests) and are float and Sink, hard groove grindability Index included in ultimate analyses.Thanks!

By: magdik

magdik — Fri, 27 Mar 2009 11:23:13 +0000

i would like to do a university project on basic coal analysis however i got no clue what to as a project,actually what to test for project purpose not like day to day analysis.