. American engineer and railroad journal . the latter, in addition to its tender, must beheavy enough upon its drivers to provide a drawbar pull sufficientto accelerate the train. As an Illustration, the following table has been prepared fromthese tests, showing the number of cars in the (rain, the number ofpassengers carried (each car seating 64 people), and the energy, Efficiency of Electric Runs. Average Watt hours per top mile, Efficiency Trailers. Output. Input. of run. 6 74. % 5 4 ;:•, 3 2 32. i;
. American engineer and railroad journal . the latter, in addition to its tender, must beheavy enough upon its drivers to provide a drawbar pull sufficientto accelerate the train. As an Illustration, the following table has been prepared fromthese tests, showing the number of cars in the (rain, the number ofpassengers carried (each car seating 64 people), and the energy, Efficiency of Electric Runs. Average Watt hours per top mile, Efficiency Trailers. Output. Input. of run. 6 74. % 5 4 ;:•, 3 2 32. i;:i 9, 1 66 7 . 0 SOWN BONMUMMOM saooo - 90000 E- S. 14000 e | •V ■ 21000w -1 ■ v. k 2 - z> , .A isooor: I i Sp i 1W00=> 12000 rfQ V > --* jj * ■y v \ . r/v * *•■* . \ \ a-w ~~ ^i [Q, \ \ // v :i sv-Uai .i \ J 0 rn IVj Pull,- zic, i \ 1 * 4- hi SO .ji 10 :■•/ M 70 :u U0 100110 120130110 Seconds Electric Run No. I and Steam Rim No. 1 .1 ii ii &50 |~ M i ( ■ S, M \ jt^ \ \ \ ^ - \ / —• -- S; Ai pei J / brnv-Ujr Putl-El^lric 1 1 1 1 1 1 1 1 1 1 \l \ 10 JO 30 -10 50 00 TO 30 JU 100 111) UO 1J0 H StcondaEtoctrio Run No. 3 and Steam Run No. 1. 10 -JU JO 10 W> 60 10 40 90 100 HO ItfO ISO in3«condtl j, Electric Run No. 5 and Run No. ii. Electric 6 Trail Cars. Weight -. 157 tons Weight, including motor tons Power on 4,170 ft. Distance run ft. Watt-hours per ton mile Steam 6 Trail Cars. Weight 157 tons Weight, including locomotive. ... 264 tons Power on 4,035 ft. Distance run 6,150 ft. Electric 5 Trail Cars. Weight 130 tons Weight, including motor cars. . tons Power on ft. Distance run 5,380 ft. Watt-hours per ton mile 82 Steam 5 Trail Cars. Weight 130 tons Weight, including locomotive. . .237 tons Power on ft. Distance run 6,050 ft. Electric 4 Trail Cars. Weight
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
