 Probably not over 11 per cent of the energy in coal is effectively utilized. The remainder of the energy is lost through the inefficiency of the steam boiler, the steam engine, and the electric dynamo. It is estimated that the boiler scale in locomotives...  The Texas Magazine - Trang 97được biên tập bởi - 1913Xem Toàn bộ - Giới thiệu về cuốn sách này
 | 1912 - 774 trang
...millions of tons is now being briquetted and used. Probably not over 1 1 per cent of the energy in coal is effectively utilized. The remainder of the energy...one-sixteenth of an inch of scale means a loss of 13 per cent and that one-eighth inch, an amount present in many boilers, means a loss of 25 per cent... | |
 | United States. Department of the Interior - 1916 - 1248 trang
...that make future recovery highly improbable. Probably not over 11 per cent of the energy in coal is effectively utilized. The remainder of the energy...one-sixteenth of an inch of scale means a loss of 13 per cent and that one-eighth inch, an amount present in many boilers, means a loss of 25 per cent... | |
 | United States. Department of the Interior - 1916 - 1232 trang
...that make future recovery highly improbable. Probably not over 11 per cent of the energy in coal is effectively utilized. The remainder of the energy...one-sixteenth of an inch of scale means a loss of 13 per cent and that one-eighth inch, an amount present in many boilers, means a loss of 25 per cent... | |
 | National Education Association of the United States - 1917 - 894 trang
...that "not over 11 per cent of the energy in coal is effectively utilized, the remainder being lost in the inefficiency of the steam boiler, the steam engine, and the electric dynamo." The value of recoverable products wasted each year in the manufacture of coke is estimated at more... | |
 | National Education Association of the United States - 1917 - 884 trang
...that "not over 1 1 per cent of the energy in coal is effectively utilized, the remainder being lost in the inefficiency of the steam boiler, the steam engine, and the electric dynamo." The value of recoverable products wasted each year in the manufacture of coke is estimated at more... | |
 | National Education Association of the United States. Meeting - 1917 - 886 trang
...that "not over ii per cent of the energy in coal is effectively utilized, the remainder being lost in the inefficiency of the steam boiler, the steam engine, and the electric dynamo." The value of recoverable products wasted each year in the manufacture of coke is estimated at more... | |
 | 1912 - 696 trang
...on Mineral Wastes Continued from page 2'! Probably riot over 1 1 per cent of the energy in coal is effectively utilized. The remainder of the energy...one-sixteenth of an inch of scale means a loss of 13 per cent and that one-eighth inch, an amount present in many boilers, means a loss of 25 per cent... | |
 | 1912 - 952 trang
...millions of tons is now being briquetted and used. Probably not over 1 1 per cent of the energy in coal is effectively utilized. The remainder of the energy...one-sixteenth of an inch of scale means a loss of 13 per cent and that one-eighth inch, an amount present in many boilers, means a loss of 25 per cent... | |
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