. Electrical world. lative costs, because in the case of the gas engine we mustprovide for a greater total number of rated horse-power. The quotedprices on the gas engines in this country at the present time varyquite surprisingly. Depending on the maker quoting, the prices on ahorse-power basis range from 60 per cent, greater than for a steamengine to over twice the steam engine figures. In comparing the gasengine with the steam turbine prices we find a still greater discrep-ancy. In order to make the comparison it is necessary to add to thecost of the gas engine, the price of a suitable alte
. Electrical world. lative costs, because in the case of the gas engine we mustprovide for a greater total number of rated horse-power. The quotedprices on the gas engines in this country at the present time varyquite surprisingly. Depending on the maker quoting, the prices on ahorse-power basis range from 60 per cent, greater than for a steamengine to over twice the steam engine figures. In comparing the gasengine with the steam turbine prices we find a still greater discrep-ancy. In order to make the comparison it is necessary to add to thecost of the gas engine, the price of a suitable alternator, since thesteam turbines are always furnished with the alternator which theydrive. If this is done it will result in a cost per kilowatt of outputat least twice as great in the case of the gas engine as in the case ofthe steam turbine, and if the comparison be made on the basis of asuitable overload capacity, the discrepancy will be even greater. The cost of the gas generating plant for use in connection with. $1 $S $6 $7 -COMPARATIVE CURVES. the gas engine may be taken as being about twice the cost of thcsteam boilers necessary for use in connection with a steam prime-motor. This is for a simple gas generator and cleaning plant,without any installation for the production of by-products. It will be seen, therefore, that the cost of a gas engine plant, in-cluding the necessary gas generator, is considerably in excess of thecost of a steam plant for the same service, especially if the steamprime-movers be turbines. The cost of maintenance and the figurewhich must be taken for depreciation on such plant is, therefore,correspondingly higher, and the cost of the attendance also greater,since it requires a somewhat better class of men to handle a gas the other hand, the efficiency of the gas plant is very much betterthan that of the steam plant, the gas plant requiring for the sameservice about half the coal required by the steam engine plant and alittle more than hal
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
