166 



THE APPLICATION OF SMALL STEAM TURBINES 



Mean capacity — 20,230 cubic feet per minute. 



It will be noticed that readings were still unsteady, due, no doubt, to the sharp 

 reversal over corner of intake. 



Taking advantage of the calm weather at this time, further tests were run to 

 indicate if the absence of wind velocity affected results. They resulted as follows : — 



These tests, shown in Plate 88, were a decided improvement and check very 

 closely with those made by the box method at the Terry Co.'s works, despite the 

 difference in inlet-tube sizes and air temperatures. 



The diameter of inlet tube was next reduced, Plate 87 (Exp. 3), to further in- 

 crease velocity and prevent eddy formation. These tests check up with reason- 

 able accuracy with the results of the tests with the larger tube. Plate 86 shows the 

 comparison obtained by the different methods and indicate that a coefficient of .759 

 should have been used in the original box tests in place of .98. 



Checking up the results obtained by the quantity of air required for combus- 

 tion, we get the following results : — 



Lieut. A. T. Church, U. S. Navy, gives some figures on the theoretical amount 

 of air required for various oils with different percentages of COo (Journal A. S. 

 N. E., 1911, p. 795) We find that the quantity of air burned by the Warrington 



