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).
Diagram and description of a radiator efficiency testing apparatus and procedure.
| Identifier | ExFiles\Box 78\3\ scan0050 | |
| Date | 20th July 1914 guessed | |
| Wor{Arthur Wormald - General Works Manager}/EHLf/L20714. Sheet. 2 250 gal Tank Thermometer Fan? Steam valve Thermometer Motor The outlet at the bottom of the radiator allows 2.5 gallons per minute to run away. It varies with a head of water. Each test was taken under the same conditions. We could not find any difference in makes of radiators as regards internal resistance. The amount of water passing through per minute was the same with each radiator. Attached are curves showing the efficiency of each radiator. We found that to get a true reading of the efficiency it was necessary to test it with varying quantities of air passing through. The curves show the temperature of water at the outlet from the radiator at different fan speeds, all other | ||