Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Comparative table of radiator tube specifications and performance data.

Identifier  ExFiles\Box 24\5\  Scan337
Date  24th September 1930 guessed
  
DESCRIPTION OF RADIATOR TUBE.
NO. OF TUBES
SURFACE OF TUBES IN CONTACT WITH AIR. SQ. FT.
FREE AIR AREA RADIATOR TUBES. SQ. INS.
% FREE AIR AREA RADIATOR.
% DIRECT COOLING.
SQ. FT. SURFACE PER SQ. FT. FRONTAL AREA
DIFFERENCE IN TEMPERATURE BETWEEN TOP WATER TEMP. & ATS. TO DISSIPATE ENGINE HEAT AT 60 M.P.H. NO BONNET VENT.

6/7 & 1/2 m.m. round tubes. | 8115 | A.{Mr Adams} 164 | 314 | 50.5% | 84.4 | 37.9 | 63.5
5 & 1/2 /7 m.m. round tubes. | 8991 | 163.5 | 282 | 45.3% | 84.35 | 37.6 | 60.5
6/7 m.m. round tubes. | 8991 | 180 | 349 | 54.2% | 84.7 | 41.6 | 57.0
6/7 m.m. square tube. 1 m.m. strip between each tube. | 7050 | 178 | 348 | 54.1% | 84.5 | 41.2 | 61
6 m.m. parallel square tube. | 8860 | 218.5 | 436 | NOW BEING MADE. 70% | 46.2 | 50.6 | 49
.5 m.m. parallel square tube | 10045 | 235 | 426 | EFFECT OF TUBE SIZE. 68% | 46.6 | 54.3 | 43

FIGURES FOR RAD. MATRIX 26" HIGH 24" WIDE.
COLUMN A.{Mr Adams} FROM TESTS SHEWS APPROX. RELATIVE RADIATOR EFFICIENCY.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙