360° 14.137' 360°: 200°::14.137': 7.854' HEATING 7.854 16 47124 7854 16' x 12" 19 2" SURFACE OF SHELL = 125.664 4"x3.1416=12.56" 16.74 AREA OF I TUBE 40 669.60 AREA OF 40 4" TUBES 16 FEET LONG. 144 24 11.52 (1674 (16 4.312 4.312 4312 12936 17248 18.593344 144 971 864 1075 1008 632 18.59 576 .78 54 7436 216 584.00" 9295 270 CROSS SEC. AREA 14872 2916 .7854 11664 14580 OF 40 TUBES. 13013 14.600586" CROSS SEC. AREA OF I TUBE. Hand book of calculations for engineers and firemen Nehemiah Hawkins 2 -=125.66 5=669.60° S=13.100' E 808.36/ 144) 1885.6 (13.12 HEATING SURFACE OF BOTH HEADS |