Journal of electricity, power, and gas . fuel-oil is cheap, as in Califor-nia or in Russia, hydroelectric steam has its specialfield. In standby stations for hydroelectric systems, apart of the steam boiler battery is constantly kept sup-plied with warm water and steam, so as to be readyon short notice, in case of an emergency, to supplythe line with current. The practice is to alternately heat one boiler at a time and keep each boiler con-nected with the other boilers of a battery. The fuelconsumed for this stand-by service which may not becalled upon for a long time, is quite considerable in
Journal of electricity, power, and gas . fuel-oil is cheap, as in Califor-nia or in Russia, hydroelectric steam has its specialfield. In standby stations for hydroelectric systems, apart of the steam boiler battery is constantly kept sup-plied with warm water and steam, so as to be readyon short notice, in case of an emergency, to supplythe line with current. The practice is to alternately heat one boiler at a time and keep each boiler con-nected with the other boilers of a battery. The fuelconsumed for this stand-by service which may not becalled upon for a long time, is quite considerable insome plants, and where there is a hydroelectric sur-plus, constantly or off-peak, a sufficient saving canoften be shown to warrant the additional cost in twoor three years, as this electric steam equipment isrelatively inexpensive. There are no changes in the outlay of a steamstation necessary as the electric boilers can be runparallel to the fuel-oil boilers, feeding directly into themain steam pipe of the fuel-oil boiler battery. The. Canadian Installation of Electric Boilers. space needed for an electric boiler plant is rather instance a boiler of 2000 kw. capacity measures8 ft. in diameter and 12 ft. in height, a 750 kw. boiler6^2 ft. in diameter and 11 ft. in height. The thermal efficiency of these boilers is claimedto be 98 per cent, the builders guaranteeing 93 percent on full load and 88 per cent on half load. For apreliminary estimate one can assume that 1 about 3 lb. of saturated, dry steam at com-mercial pressures up to 125 lb. It would lead too far to give full details of theboiler in a short article, especially to show, why bymeans of some of the patented features of this boiler,this boiler operates successfully when so many pre-vious attempts towards this end have utterly may suffice to state that the water itself is used asa resistance, the current being taken into the boilerto a fixed electrode and divided into a primary curre
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Keywords: ., bookauth, bookcentury1800, bookdecade1890, booksubjectelectricity
