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 showing the rate of heat transmission from liquid to metal for different fluids and tube sizes.
Identifier | ExFiles\Box 149a\2\ scan0306 | |
Date | 1st November 1930 | |
CHART L/421.G RATE OF HEAT TRANSMISSION FROM LIQUID TO METAL TUBE DIA = 5/16" O.D 24.G. 70/30 BRASS LIQUID VELOCITY = 3.75 FT/SEC B.T.US/SEC/°F T.D./FT²/COOLING SURFACE = .0231K/D (KCρ/η)^.455 (vDρ/η)^.8 WHERE K=THERMAL CONDUCTIVITY Cρ = SP.{Mr Spinney} HEAT ρ = DENSITY v = LIQUID VELOCITY D = PIPE BORE η = ν/ρ WHERE ν = ABSOLUTE VISCOSITY Y-Axis: COEFFICIENT OF HEAT TRANSFER B.T.US/HR/SQ FT/°F TEMP DIFF X-Axis: LIQUID TEMP °F Graph Lines & Annotations: FROM EQN ABOVE WATER (5/16 TUBE) WATER (3/4 TUBE) NO END EFFECTS FROM PAPER INSTn MECHm ENGrs NOV 1930 (EAGLE FERGUSON) EXPERIMENTAL WORKS [faint text] HEAT FLOW DERIVED FROM TRIAL 421 ETHYLENE GLYCOL | ||