Identifier: masteringpowerpr01pola (find matches)
Title: Mastering power production ; the industrial, economic and social problems involved and their solution
Year: 1921 (1920s)
Authors: Polakov, Walter N. (Walter Nicholas), 1879-1948
Subjects: Efficiency, Industrial Power-plants
Publisher: New York, The Engineering magazine company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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A r /I 1 i 1 J 1 WEDNESDAY i i v 1 1 r 1 1 1 , 1 \ si THURSOAY ; 1 / n 1 / / \ 4 h k / \ f l\ l\ 1 1 V 1 ^ 1 FRIDAY II 1 n / f \ / \ i / \ 1 / \ ; 1 V \ K \ \\ J SATURDAY / ::::::::t _xT ,_ rM , l\ L .._. 4 __ JjL_ _._ HT_._ it ___ ___)1__. 4 ■ 7 8 9 10 1! 12 1 2 3 4 5 6 7 7 8 9 10 II 12 I 2 3 4 5 6 7 7 8 9 .10 II 12 I 2 3 4 5.„6 7 7 6 9 10 II 12 I 2 3 4 5 6 7 7 8 9 10 II 12 I 2 3 4 5 S 7 7 8 9 10 II 12 I 2 3 4 5 6 7A.M Moon P.M. A.M. Noon .P.M. A..M. Noon P.M.. A.M. Noon P.M. A.M. Noon P.M. A.M. Noon P.M. Fig. si.—Fluctuation of Power Consumption Indicating the Influence of FatigueComposite diagram of electrical load of a public utility plant carrying diversified industrial load. Mondays incitement is apparent. Gradual accumulation of fatigue in the industrial community is plainly indicatedby the steady decline of power used. A week of four working days and fifth day as a holiday may increase totafannual production. 646260585654 si i o50 f * 48 Io 46 *o TS « 1 oo 40 f 383S3432
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6 7 8 9 10 H IE « 2. 3 ♦ 5 A.M. P.M. r Fig. 52.—Number of Accidents in Relation to FatigueMaximum number of accidents occur between 11 a. m. and 12 noon andbetween 3 and 4 p.m. This coincides with the beginning of decline in power con-sumption; as result of fatigue—less work is done and less care is taken. 172 is of utmost importance; it seems to indicate not only that theseven-day week, while suitable for biblical times and occupations ofthat degree of civilization, is too long for our days of strenuousefforts.70 It suggests, however, the desirability of securing similar datafor the fifty-two weeks of the year showing the accumulation offatigue throughout that period. Unfortunately this kind of data isexceedingly difficult to secure because of seasonal fluctuation of theamount of work, number of employees, climatic changes, and numer-ous other interfering factors. However, these wavy lines of fatigue and spells have a greatdeal more than academic value. By a careful study of t

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