Use data on the heating value of bituminous coal and lignite that can be found here:
http://www.ket.org/Trips/Coal/AGSMM/agsmmtypes.html
as well as other places.
There is a range of heating values for both, depending upon quality. There is no single "right" number for the answer. In general, lignite has about half the heating value of "soft" coal; so it will require about twice as much for the same amount of heat.
Approximately how many tons of lignite would be required to produce the amount of heat generated by one ton of anthracite coal?
1 answer