ENGINE No. 2. 



Simple Non-Condensing. 



Kind of engine Four-valve (Corliss) 



Number of cylinders 1 



Diameter of cylinder 28.5 in. 



Diameter of piston-rod 4 in. 



Stroke of piston 59.5 in. 



Clearance 3 % 



H. P. constant for 1 Ib. m. e. p. one revolution per min. .1898 



Inside diameter of steam pipe 8 in. 



Condition of valves and piston regarding leakage . . . Fairly tight. 



Data and Results of Feed-Water Test, Engine No. 2. 



Character of steam Ordinary 



Duration 6.08 hr. 



Weight of feed-water consumed 79,467 Ibs. 



Feed-water consumed per hour 13,070 Ibs. 



Pressure in steam pipe above atmosphere 101 Ibs. 



Mean effective pressure 41.18 Ibs. 



Revolutions per minute ^>4.8 



Indicated horse-power 506.5 H. P. 



Feed-water consumed per I. H. P. per hour 25.8 Ibs. 



Measurements based on Sample Diagrams. 



Initial pressure above atmosphere 91 ^s. 



Cut-off pressure above zero 82.9 Ibs. 



Release pressure above zero 26.3 Ibs. 



Mean effective pressure 41.18 Ibs. 



Back pressure at mid -stroke above atmosphere 4.2 Ibs. 



Proportion of stroke completed at cut-off .315 



Steam accounted for at cut-off 21.06 Ibs. 



Steam accounted for at release 21.35 Ibs. 



Proportion accounted for at cut-off .817 



Proportion accounted for at release. .828 



Engine Xo. 2 is supplied with steam from water tube boilers. 

 A calorimeter test showed less than one per cent of moisture. 

 The steam valves and piston were tight. The exhaust valves 

 leaked a small amount. The load was that of a cotton-mill. 



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