Storage Batteries Simplified, Operating Principles--Care and Industrial Applications: A Complete, Non-Technical But Authoritative Treatise Discussing the Development of the Modern Storage Battery, Outlining the Basic Operation of the Leading Types
Storage Batteries Simplified, Operating Principles--Care and Industrial Applications: A Complete, Non-Technical But Authoritative Treatise Discussing the Development of the Modern Storage Battery, Outlining the Basic Operation of the Leading Types
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ... ton to get the tractive effort to overcome friction on the level. (b) Find the tractive effort for grade, if any is encountered, by multiplying the grade expressed in per cent. by 20 and multiplying this by the weight of the train in ton3, taking this figure as positive for up grade and negative for ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ... ton to get the tractive effort to overcome friction on the level. (b) Find the tractive effort for grade, if any is encountered, by multiplying the grade expressed in per cent. by 20 and multiplying this by the weight of the train in ton3, taking this figure as positive for up grade and negative for down grade. (c) Add the tractive effort level running and the tractive effort for grade to get the total tractive effort. If the sum is negative, it means the train is coasting and no power is required. (d) Multiply the total tractive effort by 3 to get watt-hours battery per train mile. (1 watt-hour equals 2.655 foot-pounds, which is very nearly y2 a me Per pound; tractive effort X 2--watt-hours per train mile at the locomotive wheels. Assuming 66 per cent, efficiency between the battery and the wheels, we have tractive effort X 2.66f = tractive effort X 3 = watt-hours per train mile.) (e) Multiply the watt-hours per train mile by the number of miles of total operation on this section of the track in this direction to get the watt-hours required for this portion of the operation. Repeat the above for all sections of the track and in both directions. (f) Add the watt-hours required for all portions of the operation, and the sum of these gives the total watt-hours of battery capacity required. (g) Divide the total watt-hours by the voltage of the battery (the number of cells multiplied by 2) to get the ampere-hours of battery capacity. (h) Divide the ampere-hours of battery capacity by 31.5 to get the number of positive plates per cell. The figure 31.5, which is the 4%-hour capacity of a positive plate in ampere-hours, can only be used when there are at least 5 cycles of operation approximately evenly distributed over 4y2 hours or...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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