Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 74
COAL FIELDSOF ILLINOIS … 12500 55 60 65 70 75 80 85 90 95Per Cent of Fixed Carbon in Combustible Fig. 2. Fig. 3. Graphic Representation of Relation betw^eenHeat Value Per Pound of Combustible and FixedCarbon in Combustible as Deduced by Wm. Kent. There is no absolute measure of the lower heatvalue, and in view of the wide…
Building · Heating · Ventilation
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