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).
Radiator tests and heat given to jacket water on a standard 40/50 HP car.
| Identifier | WestWitteringFiles\L\July1924-September1924\ Scan22 | |
| Date | 12th July 1928 | |
| R.R. 493A (40 H) (SL 42 12-7-28). J.H., D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Expl. No. REF: He/ACL/LG11.9.2 RADIATOR TESTS AND HEAT GIVEN TO JACKET WATER ON STANDARD 40/50 HP. CAR. 49GB The following tests were carried out on the dynamometer: Test 1. Determination of the heat flow to the jacket water when engine was operating under full load, half load and quarter load. Test 2. The amount of heat that could be dissipated by the radiator with a fixed water temperature. Test 1. The heat flow was determined under various conditions by measuring the temperature rise and the mass flow of water. The flow was measured by a venturi meter inserted in the bottom water pipe and the temperature rise by ordinary glass thermometers. For all these tests the top water temperature was regulated to be as near 90°C as possible. The reduced load readings were obtained by adjusting the throttle opening so that the weight lifted by the dynamometer was the required fraction of the weight lifted at full load for the corresponding speed. Below are the tabulated results and curves are given showing the heat flow in B.Th.U's per minute against engine R.P.M. contd :- | ||