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).
Page 3 of a report detailing heat transfer and conductivity calculations for a calorimeter experiment.
| Identifier | ExFiles\Box 58\2\ Scan130 | |
| Date | 14th June 1934 guessed | |
| F.I.M.A.C. MILANO -3- Qc = 0,389 / 140 = 0,00278 By taking away from same that given by the heater, it will be: Qc = 0,00278 - 0,00065 = 0,00213 The coefficient of transmission per hour and for a jump of one degree, will be: Ac = 0,00213 / 117,5 x 3600 = 0,06516 4.- Determination of the time necessary to heat the calorimeter from 30 to 35° in the previous conditions, but without copper pins. This time was found to be 300": 0,389 / 300 = 0,00129 and by taking away the heat sent by the heater, it will be: 0,00129 - 0,00065 = 0,00064 Hence the coefficient of transmission per hour and for one jump degree, will be: A = 0,00064 / 117,5 x 3600 = 0,0194 5.- With the time required to heat the calorimeter from 30 to 35° in the aforesaid conditions and by using the electrode with a continuous complete copper pin, the same transmission coefficient was found as that which was met with in experiment N°3. Trials were afterwards carried out for the purpose of determining how the conductivity of the copper pin varies in connection with the pressure of the copper pin on the radiating part. With this end in view, the electrode was replaced in the calorimeter with | ||