Scientific American Supplement, No. 430, March 29, 1884
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The power of any burner, for anyspecified purpose, depends not only on its perfection, but to a fargreater extent on the difference in the temperature of the flame and ofthe object to be heated. For instance, if a bright red heat is required, it is not possible to obtain this temperature economically with anyburner working without an artificial blast of air; the differencebetween the temperature of the flame and that of the object heated istoo little to enable the heat to be taken up freely or ...quickly, andthe result is a large loss of costly fuel. If we want to obtain hightemperatures economically, an artificial blast of air is necessary, and the heavier the pressure of air, the greater the economy. On thecontrary, low temperatures and diffused heat are obtained best by flameswithout any artificial air supply.
For such purposes as ovens, disinfecting chambers, japanners' stoves, founders' core drying, and similar requirements the best results areobtained by a number of separate jets of flame at the lowest part of theinclosed space, and the use of either illuminating or blue flames is amatter of no importance, as the total amount of heated air from eithercharacter of flame is the same.
What to read after Scientific American Supplement, No. 430, March 29, 1884?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The power of any burner, for anyspecified purpose, depends not only on its perfection, but to a fargreater extent on the difference in the temperature of the flame and ofthe object to be heated. For instance, if a bright red heat is required, it is not possible to obtain this temperature economically with anyburner working without an artificial blast of air; the differencebetween the temperature of the flame and that of the object heated istoo little to enable the heat to be taken up freely or ...quickly, andthe result is a large loss of costly fuel. If we want to obtain hightemperatures economically, an artificial blast of air is necessary, and the heavier the pressure of air, the greater the economy. On thecontrary, low temperatures and diffused heat are obtained best by flameswithout any artificial air supply.
For such purposes as ovens, disinfecting chambers, japanners' stoves, founders' core drying, and similar requirements the best results areobtained by a number of separate jets of flame at the lowest part of theinclosed space, and the use of either illuminating or blue flames is amatter of no importance, as the total amount of heated air from eithercharacter of flame is the same.
What to read after Scientific American Supplement, No. 430, March 29, 1884?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
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