Energy diagram for a Hispano engine showing the percentage of initial heat energy against RPM.
| Identifier | WestWitteringFiles\L\2July1924-September1924\ Scan13 | |
| Date | 26th September 1924 | |
| ENERGY DIAGRAM FOR HISPANO. CAL. {Mr Calvert} VALUE OF FUEL TAKEN AS 19,000 B.Th.Us/lb AS FOR PREVIOUS DIAGRAMS. S.G. PETROL .765. % OF INITIAL HEAT ENERGY. R. {Sir Henry Royce} P. M. {Mr Moon / Mr Moore} LOSSES TO:- JACKET WATER EXHAUST, PUMPING RADIATION PISTON POWER FRICTION EFFECTIVE THERMAL EFFICIENCY EFFECTIVE ENGINE POWER STAMPED: 26 SEP 24 DERBY | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).