TESTS OF DRAINAGE PUMPING PLANTS. 



25 



Boiler test. 



Duration of test, hours 



Average stack temperature, °~F 



Average steam pressure, pounds per square inch 



Average furnace draft, inches of water 



Average feed temperature, °F 



Water evaporated, pounds 31. 



Equivalent water evaporated at 212°, pounds 37, 



Factor of evaporation 



Boiler horsepower developed 



Total fuel oil, pounds 2, 



Ratio of actual water evaporated to fuel oil 



Ratio of equivalent water evaporated at 212°, to fuel oil 



Efficiency of boiler (basis 18,500 B. T. U. per pound), per cent 



6.07 



120 





0.28 



72 





555 





560 





1. 



19 



179. 



3 



975 





10. 



01 



12. 



63 



66. 



1 



Table 16. — Test of unit No. 2 of pumping plant of subdistrict No. 1, Gueydan drainage 

 district, Florence, La., Oct. 1, 1912. 



Speed . 



Indicated 

 horse- 

 power. 



Actual 

 lift. 



Head on 

 pump. 







Useful 

 water 

 horse- 

 power. 



Efficiency. 



Discharge. 



Pump 



and 



engine. 



Pump, 

 engine, 



and 

 piping. 



R.p.m. 

 71 

 81 

 82 

 85 

 89 

 98 

 101 



83.8 

 122.2 

 132.7 

 154.5 

 183.4 

 225.9 

 249.7 



Feet. 



Feet. 



Sec-feet. 



G. p. 774. 





Per cent. 



Per cent. 



5.15 

 4.85 

 4.95 

 4.95 

 4.95 

 5.10 



5.81 

 5.24 

 5.08 

 5.08 

 5.08 

 5.55 



137.9 

 155.1 

 170.9 

 180.8 

 200.4 

 211.9 



61. 900 

 69, 600 

 76, 700 

 81, 200 

 90, 000 

 95, 100 



80.5 

 85.3 

 96.0 

 101.5 

 112.6 

 122.6 



74.3 

 69.5 

 63.8 

 57.0 

 51.1 

 53.3 



65.9 

 64.3 

 62.2 

 55.3 

 49.9 

 49.1 



Table 17. — Test of engine and pump of unit No. 2 of subdistrict No. 1, Gueydan drainage 

 district No. 1, Florence, La., Oct. 1, 1912. 









Indi- 

 cated 

 horse- 

 power. 







Actual 

 lift. 



Head on 

 pump. 



Useful 

 water 

 horse- 

 power. 



Efficiency. 1 



Time. 



Boiler 

 pressure. 



Speed. 



Discharge. 



Pump, 

 engine, 



and 

 piping. 



Pump 



and 

 engine. 



11.15 



12.16 



J2.15 



1.15 



2.1.1.... 



9.15 



Lbs. per 

 sit. in. 

 118 

 li:, 

 11.-. 

 117 

 11H 

 125 

 125 

 125 

 123 

 1.'.-, 



R. p.m. 

 90 

 89 

 91 

 90 



89 



94 

 94 

 91 



92 



177.1 

 171.4 

 178.4 



1-1. i, 



171.:-. 

 jiii. i 

 •jiii. i 

 196.6 

 195. i 



197.3 



Sec. -feel. 

 185.4 

 IKS. 3 

 194.8 



1110.5 



195. 8 

 198.7 

 199.4 



ni. - 



1 9.1. 1 

 100. (1 



G. p. TO. 

 83, 200 

 84,500 

 87, 500 

 86,500 

 87, '.too 



H0, 200 



■'I, : 



87, .500 

 87, 600 

 86,300 

 86.200 

 83,000 



82, KM) 



Feet. 

 4.36 

 4.50 

 4.55 

 4.54 

 4. 60 

 4.70 

 4. 70 

 4.80 

 4.85 

 4.90 

 4. 9.1 

 4. 95 

 4.90 



Feet. 

 4.83 

 4.79 

 4.87 

 5.21 

 5.01 

 4.X7 

 4.87 

 5. 1.1 

 5.06 



91.6 

 96.2 



105.0 



OS. 1 



102. 4 

 106.0 



106. i 

 106.2 



107. 5 



Per cent. 

 51.7 

 56. 2 

 58.9 

 54.2 

 59.8 

 52.8 

 52. 9 

 .1. i 

 55.0 



Per cent. 

 57.3 

 59.8 

 60.3 

 62.2 

 65. I 

 54. 7 

 54. 8 

 58.0 

 57.3 



4.16 



5.16.... 



120 'H 188.0 192.0 

 120 91 lxs.o 184.9 

 112 90 172.8 18L9 



5. 09 



5. 23 



.1. 37 



107.6 

 103.9 

 101.6 



.17. 2 

 68. 8 



68. -1 

 64.5 



HMD 



120 91.1 186.2 191.8 



86,077 



4.72 



.1.02 



102.7 



55.6 



59.9 



1 Pomp efficiency trot 66.7 pec cent, baaed on 91.1 per cent mechanical efficiency ><r engine and pump 



from friction cards. 



89782—22 BulL 1067 \ 



