Abstract

Abstract In certain steam-electric power plants the combination of load factor and high fuel cost not only necessitates but also makes possible the attainment of high economies in operation. These particular conditions exist in three Arizona plants known and located as follows: Inspiration Consolidated Copper Company, Inspiration, Ariz.; New Cornelia Copper Company, Ajo, Ariz. and Arizona Power Company, Clarkdale, Ariz. All of these plants embody many similar features and in this paper the author discusses the economy of operation of each. Tables and curves of operating characteristics are also given and these show that the best economy per bbl. of oil obtained at the Inspiration Plant was 294.5 kw-hr., at the New Cornelia Plant 326.2 kw-hr., and at the Arizona plant 333.3 kw-hr. All these values were obtained during the winter months when conditions were most favorable. The paper concludes with a section dealing with the personnel responsible for the installations.

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