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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).
The results of heating and freezing tests on various condensers.

Identifier  ExFiles\Box 52\3\  Scan154
Date  12th July 1923
  
R.R. 493A (40 H) (SL 42 12-7-23). J.H.D.
EXPERIMENTAL REPORT. -2- Expl. No. 4430 REF: F.C.4.
Contd.

signs of rising.

The ratios of the capacity observed
at the end, i.e. 16°C, to that observed at the beginning,
3.5°, were respectively:-

Condenser No. Ratios.
32 1.21
613 1.16
741 1.17
Bosch 1.19

The results, together with other relevant
details of the condensers, are given tabulated below:-

No. of Condenser. 32. 613 741 U.S.A. Bosch. Remarks.

K before heating test. .182 18°C .399 18°C .344 18°C .710 18°C
K after heating test. .305* 18°C .573 18°C .410 18°C .790 18°C * Value after second heat test.
K before first freezing test. .270 15.5°C .625 15.5°C .418 15.5°C -
K after first freezing test. .265 15°C .610 15°C .415 15°C -
K before second freezing test. .240 14°C .578 14°C .402 14°C .766 14°C
K after second exposure at outside temperature .200 3.5°C .520 3.5°C .358 3.5°C .672 3.5°C
K at the end of second freezing test. .242 16°C .601 16°C .418 16°C .800 16°C
K 24 hours later. .230 16°C .590 16°C .410 16°C .776 16°C

Contd.
  
  


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