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).
Proposal for an experiment to test radiator leaks by applying unequal temperatures across its structure.
| Identifier | ExFiles\Box 78\3\ scan0078 | |
| Date | 31th March 1915 | |
| for Hy.{Tom Haldenby - Plant Engineer} from R.{Sir Henry Royce} 2. R2/IB15415. COPY. Radiator Bumping Tests. Such an arrangement, I think, would leave no doubt as to the effect of unequal temperature upon the structure, and if effective at developing leaks, would be a most useful form of experiment to make a comparison. [unintelligible text] the bonding that ran all through the present I believe [unintelligible text] to the side plates. F.H.R. We have received one radiator in which the bonding has passed right through. This is the one made with bricks and wires. R I can only suggest that we apply excessive and vigorous cooling to sections of the radiator, while other parts are exposed to the hottest water that we can procure. Supposing that you supplied the top of the radiator with boiling water, and you took one of the blower types of fan and cooled certain sections of the radiator (such as central vertical strips and circular patches) by a nozzle from the fan covering up the rest of the radiator. So that you would have a radiator with the central part quite fairly cold and the edges hot, and see whether the local expansion and contraction would cause any leakage, and if so, whether the radiator with through bonding was better than the other types. To get the cooling very local, one might use some form of water cooling of the radiator, as it would not be difficult in the honeycomb pattern to fit a rubber joint to each side, and some simple form of casing which would subject a section of the radiator to the severe chilling of cold water say iced water, while passing boiling water through the radiator. | ||