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1 BMT Salvage Ltd. Bursting of Boilers and Breakage of Shafts IUMI – Singapore Conference September 2004 John Lillie Managing Director The Salvage Association
1BMT Salvage Ltd.
Bursting of Boilers and Breakage of Shafts
IUMI – Singapore Conference
September 2004
John Lillie
Managing Director
The Salvage Association
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?
3BMT Salvage Ltd.
Typical Modern Slow Speed Engine
4BMT Salvage Ltd.
Steam Turbine Engine
5BMT Salvage Ltd.
Rapid change in recent times
Larger engines
Cheapest fuel
Drive for efficiency
Reduction of ship’s staff
Reduction of skills
6BMT Salvage Ltd.
Particular Average Losses
By Number
By Cost
7BMT Salvage Ltd.
PA Numbers by Claim Range
8BMT Salvage Ltd.
Engine Room Casualties – Number Basis
9BMT Salvage Ltd.
Engine Room Casualties – Cost Basis
10BMT Salvage Ltd.
ER Machinery PA Losses By Number & Cost
11BMT Salvage Ltd.
Dismantling a Main Engine
12BMT Salvage Ltd.
Access cut in ship’s side to remove engine parts
13BMT Salvage Ltd.
Temperature comparison between two engine exhaust pipes
14BMT Salvage Ltd.
Remote temperature measurement
15BMT Salvage Ltd.
What can happen when engines breakdown
