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).
Chart detailing the performance of Ethylene Glycol coolant in a 2-row staggered tube system.
Identifier | ExFiles\Box 149a\2\ scan0301 | |
Date | 11th February 1931 | |
CHART No. L 421 A ETHYLENE GLYCOL 2 ROW STAGGERED TUBE TYPE 23/5/16 | 24/1/37 | 65/06 | 15 1 1/2" TUBE PITCH FRONTAL AREA = 1 sq ft COOLING SURFACE 19.9 sq ft FT. RUN TUBING 16.0 WT. OF TUBING LBS CONSTANT AIR 990 CUBIC FT. | MIN. CONSTANT LIQUID 2.92 FT. | SECOND LIQUID 74.2 LBS | MIN FT. OF WIDTH AND 182 °F MEAN TEMP. (DENSITY AT 190° ABOUT 1.08) LIQUID VELOCITY FT. | SECOND 2 4 6 (Tube Diagram) 1.5", 1.5", 1.3" (Left Y-Axis) AIR PRESSURE INCHES OF WATER, 5, 10, 15 (Right Y-Axis) B.TH.U.S. | HR. | SQ FT COOLING SURFACE | °F TEMP. DIFF., 10, 20, 30 (Bottom X-Axis) AIR FLOW CUBIC FT. | MIN. | SQ FT FRONTAL AREA, 500, 1000, 1500 (Graph Text) MEAN OF TRIALS (421, 422) AND 423 AIR PRESSURE LIQUID RATE AIR RATE (CALC.) AT 3.75 FT/SEC LIQUID VELOCITY AIR RATE (Faint Vertical Text) CHARTON ENGINEERING WORKS (Bottom Right) 11/2/31, modified 20/2/35 | ||