bursting of boilers and breakage of shafts
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Bursting of Boilers and Breakage of Shafts. IUMI – Singapore Conference September 2004 John Lillie Managing Director The Salvage Association. Early machinery damage. Causes of early machinery damage: Boundaries of 19 th Century materials technology. - PowerPoint PPT PresentationTRANSCRIPT
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1BMT Salvage Ltd.
Bursting of Boilers and Breakage of Shafts
IUMI – Singapore Conference
September 2004
John Lillie
Managing Director
The Salvage Association
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2BMT Salvage Ltd.
Early machinery damage
Causes of early machinery damage:– Boundaries of 19th Century materials technology.
– Increasing pressure in boilers and power in engines.
– When the tail shafts broke, vessels sank.
– When boilers burst people died, vessels often sank too.
– Rudder loss was a frequent cause of vessels foundering.
When was machinery added to hull?
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3BMT Salvage Ltd.
Typical Modern Slow Speed Engine
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4BMT Salvage Ltd.
Steam Turbine Engine
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5BMT Salvage Ltd.
Rapid change in recent times
Larger engines
Cheapest fuel
Drive for efficiency
Reduction of ship’s staff
Reduction of skills
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6BMT Salvage Ltd.
Particular Average Losses
By Number
By Cost
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7BMT Salvage Ltd.
PA Numbers by Claim Range
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8BMT Salvage Ltd.
Engine Room Casualties – Number Basis
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9BMT Salvage Ltd.
Engine Room Casualties – Cost Basis
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10BMT Salvage Ltd.
ER Machinery PA Losses By Number & Cost
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11BMT Salvage Ltd.
Dismantling a Main Engine
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12BMT Salvage Ltd.
Access cut in ship’s side to remove engine parts
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13BMT Salvage Ltd.
Temperature comparison between two engine exhaust pipes
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14BMT Salvage Ltd.
Remote temperature measurement
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15BMT Salvage Ltd.
What can happen when engines breakdown