Book - School of Science and Technology

Liquid fuel 303Table 11.6 Oil tank capacitiesDiameter(m)Length(m)Gross capacity(litre)Net capacity a(litre)Cylindrical1 2 1 570 1 3002.5 1 960 1 6001.5 2 3 530 3 2002.5 4 420 4 0003 5 300 4 8002 3 9 430 8 8003.5 11 000 10 2004 12 570 11 8002.5 3.5 17 180 16 2004 19 640 18 4004.5 22 090 20 8003 4 28 280 26 9005 35 350 33 6006 42 420 40 200Length(m)Width(m)Depth(m)Gross capacity(litre)Net capacity a(litre)Rectangular1 1 1 1 000 7001.5 1 1 1 500 1 1002 1 1 2 000 1 5003 1.5 1 4 500 3 3003 1.5 1.5 6 750 5 6003 2 1.5 9 000 7 5004 2 2 16 000 14 0004 3 2 24 000 21 0004 4 2 32 000 28 0006 4 2 48 000 42 000Length(m)Width(m)Depth(m)Diameter(m)Net capacity(litre)Plastic1.37 1.06 1.25 ± 1 2501.8 ± ± 1.1 1 3502.02 1.36 1.36 ± 2 5001.35 ± ± 1.61 2 600a Allowance 150 mm up to outlet and 100 mm ullage (at top), rounded to nearest 100 litres lower.wherever sited, be supported on sleeper walls topped by steel joists. Cradles and joistsshould both be bedded on bituminous felt or lead packing. All tanks must be arrangedsuch that water, sludge and other accumulations may be drawn off at a convenient low point.A domestic range of oil tanks manufactured in medium density polythene is available.The material is rotationally moulded in one piece to provide a stress-free container ofuniform wall thickness which is resistant to cracking. The rectangular tanks, with domedtop, and the vertical cylindrical pattern must be mounted on a flat surface and not piers.The capacities and dimensions are listed in Table 11.6.