ENGINE No. 44. 



Compound Non-Condensing Engine. 



H. P. 

 CYLINDER. 



L. P. 

 CYLINDER. 



Kind of engine Single valve 



Number of cylinders 1 1 



Diameter of cylinder ins. 11 19 



Stroke of piston ft. 11 11 



Clearance % 33 9 



H. P. constant for 1 Ib. m. e. p. one 



revolution per minute .... H.P. .00264 .00788 



Ratio of areas of cylinders .... 1. 2.98 

 Inside diameter of steam pipe . . . ins. 5 



Condition of valves and pistons regard- Practically Practically 



ing leakage tight tight 



Data and Results of Feed- Water Test. 



Character of steam Ordinary 



Duration 5.88 hrs. 



Weight of feed-water consumed 13,: I 1 .' 7 IDS. 



Feed-water consumed per hour 2, oil. 8 Ibs. 



Pressure in steam pipe above atmosphere !:;." '. ll.s. 



Revolutions per minute 29<;.:; 



Mean effective pressure, H. P. cylinder 07.2 Ibs. 



Mean effective pressure, L. P. cylinder 23.3 Ibs. 



Indicated horse-power, H. P. cylinder 53.6 H.P. 



Indicated horse-power, L. P. cylinder 56 H.P. 



Indicated horse- power, whole engine H>9.66 H.P. 



Feed-water consumed per I. H. P. per hour L'lV.tl Ibs. 



Measurements based on Sample Diagrams. 



H.P. 



CYLIM-KI;. 



L. r. 



CYLIM'I K. 



Initial pressure above atmosphere . . Ibs. 



Corresponding steam-pipe pressure . Ibs. 



Cut-off pressure above zero . . . . Ibs. 



Release pressure above zero .... Ibs. 



Mean effective pressure Ibs. 



Back pressure at lowest point above 



atmosphere ... .... Ibs. 



Proportion of stroke completed at cut- 

 off 



Steam accounted for at cut-off . . . Ibs. 



Steam accounted for at release . . . Ibs. 



Proportion of feed-water accounted for 

 at cut-off 



Proportion of feed-water accounted for 

 at release .... 



130 

 132 

 L28 _ 



89.5 



0T.1 



30 



.605 

 18.39 

 18. oO 



.803 

 .81 



55 



35.5 

 88.4 



23.6 







.662 

 14.96 



16.61 



.725 



172 



