36 



BULLETIN 1067, U. S. DEPARTMENT OF AGRICULTURE. 



Table 27. — -Test of ■pumping plant in subdistrict No. 2 of Lafourche drainage district 

 No. 12, Raceland, La., Apr. 19, 1915} 



Time. 



Speed. 



Actual 

 lift. 



Discharge. 



Water 

 horse- 

 power. 



9.15 



R. p. m. 

 198 

 198 

 200 

 200 

 198 

 200 



Feet. 

 3.67 

 3.81 

 3.98 

 4.14 

 4.34 

 4.49 



Sec.-ft. 

 29.44 

 26.08 

 31.17 

 23.11 

 29.42 

 22.53 



G. p. m. 

 13, 210 

 11, 720 

 14,000 

 10, 420 

 13, 230 

 10, 110 



12.24 



9 .45 



11.27 



10.15 



14.05 



10.45 



10.83 



11.15 



14.48 



11.45 



11.45 









199 



4.07 



26.96 



12, 100 



12.46 







1 Fuel-oil consumption, 23.4 pounds per hour. 



TEST OF JAMISON RELIFT PLANT OF THE LOUISIANA IRRIGATION & MILL CO., 



CROWLEY, LA. 



This pumping plant contains two units, each consisting of a 

 60-horsepower Muncie engine direct-connected to a 36-inch cen- 

 trifugal pump. The pumps are primed by small vacuum pump run 

 from the engines. A small compressor and a gasoline engine are 

 used to fill the air tanks for starting the engines. Although used 

 for irrigation, this pumping plant does not differ in any way from 

 plants used for drainage. 



Tests were run on both units of the plant. The results are given 

 in Table 28. The quantity of water pumped was measured by a 

 current meter in a carefully constructed flume in the suction canal. 

 The lift was determined by means of gages set in suction and dis- 

 charge canals. Fuel oil was accurately weighed by a spring balance. 



Table 28. — Tests of Jamison relift pumping plant of Louisiana Irrigation & Mill Co., 

 Crowley, La., May 18-19, 1917. 



Time. 



Speed. 



Actual 

 Uft. 



I 

 Discharge. 



Remarks. 



3.00 



R. p. m. 

 259 

 261 

 256 

 256 

 256 

 256 

 256 



Feet. 

 3.57 

 3.54 

 3.52 

 3.50 

 3.52 

 3.51 

 3.53 



Sec.-ft. 

 51.9 

 51.7 

 49.9 

 51.7 

 50.8 

 50.1 

 50.2 



G. p. m. 

 23,300 

 23,200 

 22,400 

 23,200 

 22,800 

 22, 500 

 22, 550 





3.15 



In the first hour 31.44 Bounds of oil were con- 

 , sumed. The number of gallons pumped per 



pound of oil was 43,940; total oil consumption 



54.06 pounds. 



3.30 



3.45 



4.00 



4.15 



4.30 









Average.. 



257 



3.53 



50.9 



22,855 





9.00 



255 

 255 

 256 

 255 



2.04 

 2.03 

 2.01 

 1.99 



52.3 

 53.5 

 53.2 

 52.3 



23,500 

 24,000 

 23,900 

 23,500 



1 



9.15 



[The total consumption of oil was 29.81 pounds 



9.30 



1 per hour; gallons pumped per pound, 47,750. 



9.45 



j 







Average.. 



255.2 



2.03 ! 52.8 



23,725 





1.45 



258 

 257 

 256 



2.20 

 2.13 

 2.10 



49.5 

 49.3 

 48.3 



22, 200 

 22,100 

 21,700 



[Consumption of oil, 32.87 pounds per hour; 

 f gallons pumped per pound, 40,200. 



2.00 



2.15 









Average. . 



257 



2.14 49.0 



22,000 





