scuba&scuba
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Why tank is design in cylinder shape?
What is the advantages of a cylinder shape?
Thanks
What is the advantages of a cylinder shape?
Thanks
Why Tank is in cylinder shape?
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scuba&scuba:
Circular objects are better at containing pressure (ie no sharp edges to act as stress raisers or flat areas which could deflect, think of sitting on the hood of your car.)
Ideally they would make tanks as spheres but then they would be difficult to attach to your BCD, hence cylinder shapes and why some tanks have rounded bottoms
spog
Contributor
also, better surface area:volume ratio so less material is required in construction/lighter
(blow a bubble to see)
spog
'wanking monkeys' - is that in anyway related to the diving monkey that inspired the phrase 'scratch monkey' in computing?
(blow a bubble to see)
spog
'wanking monkeys' - is that in anyway related to the diving monkey that inspired the phrase 'scratch monkey' in computing?
The Chairman
Chairman of the Board
Actually,
probably the biggest reason is the manufacturing process. Welds are prone to failure, and at that pressure a failure would be fatal. Both the aluminum and steel tanks are extruded under intense heat and pressure, and then spun at speeds to close the bottom (with a lot more pressure). The process with steel provides a rounded bottom, and the aluminum tanks (being more ductile) acquire a flat bottom. Both of these materials are tempered as they are processed and that temper can be ruined with additional heat. At this point the necks are squared, fly cut and threaded.
probably the biggest reason is the manufacturing process. Welds are prone to failure, and at that pressure a failure would be fatal. Both the aluminum and steel tanks are extruded under intense heat and pressure, and then spun at speeds to close the bottom (with a lot more pressure). The process with steel provides a rounded bottom, and the aluminum tanks (being more ductile) acquire a flat bottom. Both of these materials are tempered as they are processed and that temper can be ruined with additional heat. At this point the necks are squared, fly cut and threaded.
RICHinNC
Contributor
Gee Doc.....I kinda liked the story that they are that way because its the only mold the hobbits and fairys have. But yours is probably more accurate!
miketsp
Contributor
Albion:
There are always people who want to avoid the obvious. Last year we dove a wreck in Joao Pessoa, northeast Brazil, called the Erie. One of the few ships constructed with rectangular boilers. Just a little rounded at the bottom where they meet the hull.
(Erie - operated on postal run between Brazil & USA. Caught fire & sank 1/1/1873).
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