Transactions Society Naval Architects and Marine Engineers, Vol. 23, 11)14. 



Plate 26. 



To illustrate paper on "The Thermodynamics of the Marine Oil Engine'-' 

 by John F. VVentworth. Esq., Visitor. 



12.1^ BRAKE HP. 

 It% INOieATED HP 



HEAT BALANCES FOR VARIOUS TYPES OF ENGIME5 



/ffoJi : or^L FUEL £Me/w 



CONOCNSCir 



loss 



STEAH PLANT 



17 % USEFUL WORK 



3^ £ve/Af£ nficnoN 



^ 100% TOTAL eAfS/ret 



sTEAn eeue/mreo 



itiVIE^ 



<T'TVTnL FUEL EA/ERGY 



STEAM EN&IKE 

 tUCV-USWE OF BO\LtR 



FXHAUST 



GAS ENGINE 



43% FBICrtOH LOSS 



^OOToTOTAL FUEL ENEflGY 



< JiA^' i 



EXHAUST 



DIESEL 0\L ENGINE 20.15 H.P. 1898 



/v-a tjmP 



\00!'.TOTAV. FUEL ENERGY 



DVESEL 0\L ENG\NE \5A& Bi.Hp \898 



OieSEL 0\L ENGmE \On«iHP 1838 



r\ 



mfo TOTAL FOEL ENERGT 



£7.3?; 



ejiM^iiST 



OlEStL 01 V. ENGINE NO 10 AO \698 





