Graph plotting heat flow to cooling water against increasing exhaust back pressure for an E.A.C. engine at 1500 RPM and 50 B.HP
| Identifier | ExFiles\Box 66\2\ scan0053 | |
| Date | 27th April 1925 | |
| HEAT FLOW TO COOLING WATER. WITH INCREASING EXHAUST BACK PRESSURE. E.A.C. ENGINE. AT 1500 RPM. AND 50 B.H.P. THE SPEED & H.P. IS CONSTANT FOR THIS TEST. AS THE EXH. BACK PRESSURE IS INCREASED THE POWER IS KEPT THE SAME BY INCREASING THE THROTTLE OPENING. Y-Axis: B.Th.Us PER MIN. X-Axis (top): %AGE OF POWER GIVEN WITH NORMAL AMT BACK PRESS. X-Axis (bottom): % BACK PRESS'O RELATIVE TO NORMAL. Data points label: NO 3. Bottom right note: A.C.L. 29/4/25 Bottom right formula: 50x100 / HP WITH NORMAL BACK PRESS. | ||
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).