Kurt Laughlin <fleeta@...>
Well, the next obvious question is "Do cinder cars weigh-out or cube-out?" The desnity I've found for cinders is 112 lbs/ cu ft. (A quick search result, and questionable.) A USRA type 55 ton hopper had a capacity of 1880 cu ft, which would be 105 tons of cinders, so weight governs. It seems reasonable then that 100 hoppers of coal would produce three to twelve hoppers of cinders.toggle quoted messageShow quoted text
----- Original Message -----
From: Tim O'Connor
Clark, you can Google for "ash content of coal" -- I found a page
that says typical bituminous ash content is 3.3% to 11.7% by weight.