164 THE APPLICATION OF SMALL STEAM TURBINES 



SUPERHEAT. 



The increasing use of superheat in power-houses has to a large extent been re- 

 sponsible for the growing popularity of the small turbine for auxiliary drive with 

 the attendant elimination of internal lubrication, etc., and the same advantages in 

 favor of the turbine naturally present themselves in marine work with the ever- 

 increasing operating temperature. 



A particularly interesting investigation was made some time ago by Captain 

 Clarence A. Carr on "American Practice in Using Superheated Steam" (see Jour- 

 nal), and the advantages of the turbine-driven auxiliary under high temperatures 

 were repeatedly advocated by the different authorities quoted. 



CONCLUSION, 



In conclusion we would like to bring out the point that the successful applica- 

 tion of the small turbine for marine work is due in a large extent to the coopera- 

 tion and suggestions made by the Navy Department and marine engineers of long 

 experience, and their cooperation and their lack of prejudice against anything new, 

 so often experienced in land work, have made the present situation possible. 



The Navy Department has always listened to any suggestions regarding modi- 

 fications of specifications which experience has found desirable in this class of work. 

 The marine engineers and naval architects of the different shipyards have also 

 added very materially to the development of this field by their valuable suggestions 

 from tiine to time, and it is to these gentlemen we wish to extend our thanks as rep- 

 resentatives of turbine manufacturers for the successful status of the present day 

 of the small steam turbine in marine work. 



