 | 1908 - 634 Seiten
...combustible matter It con'atns. art determined by Its heating value shown In British thermal units per pound of fuel, and also by other factors, among which...The ash content not only lowers the heating value ard decreases the capacity of the furnace, but also materially Increases the cost of handling the coal,... | |
 | Charles Kenneth Leith, Edmund Cecil Harder - 1908 - 184 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...the cost of handling the coal, the labor of firing, and the cost of the removal of ashes, etc. No deduction for limits below. Cents per ton to be deducted.... | |
 | Geological Survey (U.S.) - 1908 - 40 Seiten
...combustible matter ft contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...the cost of handling the coal, the labor of firing, and the cost of the removal of ashes, etc. No deduction for limits below. Cents per ton to be deducted.... | |
 | George Frederick Gebhardt - 1908 - 894 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which is its asli content. The ash content not only lowers the heating value and decreases the capacity of the furnace,... | |
 | Dwight T. Randall, H. T. Weeks, H. W. Weeks - 1909 - 692 Seiten
...combustible matter It contains, as determined by its heating value shown In British thermal units per pound of fuel, and also by other factors, among which...heating value and decreases the capacity of the furnace, hut also materially increases the cost of handling the coal, the labor of firing, and the cost of the... | |
 | Geological Survey (U.S.) - 1910 - 88 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...of ashes, etc. Ash in dry coal (per cent). Kind and size. Contract standard. Maximum limit. White-ash anthracite: Furnace Egg 10 10 12 14 10 18 18 14 14... | |
 | Augustus Herman Gill - 1912 - 162 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...the cost of handling the coal, the labor of firing, and the cost of removal of ashes, etc. in this proposal a premium of i per cent per ton for each whole... | |
 | Augustus Herman Gill - 1913 - 192 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...the heating value and decreases the capacity of the fwrnace, but also materially increases the cost of handling the coal, the labor of firing, and the... | |
 | George Frederick Gebhardt - 1915 - 1022 Seiten
...combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which...the cost of handling the coal, the labor of firing, and the cost of the removal of ashes, etc. No deduc:lon for limits below. Cents per ton to be deducted.... | |
 | American Society for Testing Materials - 1907 - 808 Seiten
...combustible matter it contains, as determined by its heating value shown in British Thermal Units per pound of fuel, and also by other factors, among which...the cost of handling the coal, the labor of firing, and the cost of the removal of ashes, etc." According to the above quotation, the only certainty is,... | |
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The economic value of a fuel is affected by the actual amount of combustible matter it contains, as determined by its heating value shown in British thermal units per pound of fuel, and also by other factors, among which is its ash content. The ash content... 