Chemical engineering . es may occur at the end of the winterwhet) the stock are low and no estimate, with any accuracy,can be made as to how long the trouble may last. To meet such an emergency a gas producer plant might heinstalled. Even this would be but a partial remedy, and wouldinvolve an adtlitional yearly charge for power of not less than •x> ELECTROCHEMICAL AND METALLURGICAL LXDLSTRY. [Vol 111. No. 3- per hp. or $ per kw., not including the cost of anycoal which may be consumed by such a plant to maintain atleast a portion of it in readiness, or that required during suchp
Chemical engineering . es may occur at the end of the winterwhet) the stock are low and no estimate, with any accuracy,can be made as to how long the trouble may last. To meet such an emergency a gas producer plant might heinstalled. Even this would be but a partial remedy, and wouldinvolve an adtlitional yearly charge for power of not less than •x> ELECTROCHEMICAL AND METALLURGICAL LXDLSTRY. [Vol 111. No. 3- per hp. or $ per kw., not including the cost of anycoal which may be consumed by such a plant to maintain atleast a portion of it in readiness, or that required during suchperiods that the blast furnaces are unable to supply gas. Without wishing to discourage the idea of building com-mercial power plants in connection with blast furnace plants,I believe it better to point out as clearly as possible all thedisadvantages in the first instance, and leave to the decisionof the investor whether the possibilities, as I shall attempt toshow them, sufficiently outweigh the disadvantages, to cn-. FfRN.\CF. CVS ENGINE PfiWEK \NT, C.\PACITY gOOO HP. courage him to venture capital in this rather than some otherundertaking. The amount of surplus energy and the proportion availablefor the development of power, is to be determined. Thewaste gases of the blast furnace contain about one-half of thetotal heat originally possessed by the fuel, and is approxi-mately in direct proportion to the coke consuiiiption per ton ofiron. It has been variously estimated that from 18 per cent to33 per cent of this heat is required to heat the blast. Notonly have no accurate deter-minations ever been, to myknowledge, made of the gasconsumed in hot blast stoves,but the heat which is to beimparted to the blast varieswith local conditions, evenwhen the final temperature isidentical. The distance between en-gines and stoves, the size ofmains, the efficiency of burn-ers and of the heating appa-ratus itself, materially aflfcctthe heat consumption. Dif-ferences in blast fur
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmetallu, bookyear1902
