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).
Results of temperature and capacity tests on condensers.
| Identifier | WestWitteringFiles\K\July1923\ Scan53 | |
| Date | 13th July 1923 | |
| Contd. -2- EFC1/T13.7. 23. (a) Temp. was raised gradually to 80°C (full line curve). (b) Temp. fell to normal overnight. (c) Condensers were again taken up to 80°C (each one starting with a higher capacity than previously). (dotted curve). (d) Condenser temps. fell to 65°C. Observations still being taken. (e) Condensers again cooled down to normal temp. overnight. (f) Starting again with a still larger capacity, the temp. was increased from normal to 65°C. (dotted curve). (g) Temp. was allowed to fall again from 65° to normal, observations giving the curves g in this instance. Sheet H2 reproduces up to the 60° only the a and g curves from sheet H1. Present production capacity limits at 18°C are marked on the sheet H2 as points in circles. It will be noted that one condenser only (No.6) meets the specification in this respect. Of the other three, one was too small and the other one (which had been specially baked at a high temperature) started off with a value bigger than would be correct for production. For further details see my assistant's report together with descriptive matter on curves. It is now proposed to give on production, capacity limits at a temperature of 50°C, i.e. just before appreciable leakage has set in, of .45 to .575 mf. These are indicated by curves on sheet H2. EFC. | ||