This power station can harvest kinetic wave energy and turn it into electricity
someone should design a large container ship that could power itself using wave walking
CrazyNeutrino said:
This power station can harvest kinetic wave energy and turn it into electricitysomeone should design a large container ship that could power itself using wave walking
Wave power schemes have been around for ever.
Remember the nodding ducks?
The problem with these schemes is that they appear to be quite brilliant. Then engineering constraints come into play. Corrosion takes effect, and the whole thing falls into the sea after a few years.
sibeen said:
The problem with these schemes is that they appear to be quite brilliant. Then engineering constraints come into play. Corrosion takes effect, and the whole thing falls into the sea after a few years.
some engineer you are… just build the whole thing from titanium and stainless steel
wonder if we can convert and deorbit the ISS ….
diddly-squat said:
sibeen said:
The problem with these schemes is that they appear to be quite brilliant. Then engineering constraints come into play. Corrosion takes effect, and the whole thing falls into the sea after a few years.
some engineer you are… just build the whole thing from titanium and stainless steel
and Aluminum it does not corrode either and a few others
CrazyNeutrino said:
You have no experience with Al in a salty environment, I take it. Wouldn’t last weeks.
diddly-squat said:
sibeen said:
The problem with these schemes is that they appear to be quite brilliant. Then engineering constraints come into play. Corrosion takes effect, and the whole thing falls into the sea after a few years.
some engineer you are… just build the whole thing from titanium and stainless steel
and Aluminum it does not corrode either and a few others
I think one could be built and tested
maybe a whole lot of designs could be considered
instead of groups of people rowing boats
a set of walking wave energy pumps
and generating gigawatts of power
CrazyNeutrino said:
diddly-squat said:
sibeen said:
The problem with these schemes is that they appear to be quite brilliant. Then engineering constraints come into play. Corrosion takes effect, and the whole thing falls into the sea after a few years.
some engineer you are… just build the whole thing from titanium and stainless steel
and Aluminum it does not corrode either and a few others
HAHAHAHAHAHAHAHAH
sorry, but HAHAHAHAHAHAHAH
Michael V said:
CrazyNeutrino said:You have no experience with Al in a salty environment, I take it. Wouldn’t last weeks.
diddly-squat said:some engineer you are… just build the whole thing from titanium and stainless steel
and Aluminum it does not corrode either and a few others
in the presence of other metals
http://www.rocksaltboats.com/education/chapter-4-the-big-three
http://www.aluminiumdesign.net/design-support/aluminium-corrosion-resistance/
http://www.duroboat.com/experience/AluminumBoatsandCorrossion.htm
I grant that using sacrificial anodes (eg Zn) improves Al’s corrosion resistance.
plastic
CrazyNeutrino said:
This power station can harvest kinetic wave energy and turn it into electricitysomeone should design a large container ship that could power itself using wave walking
An Australian designer that I worked with has designed a special aerofoil that provides motive power in one direction given the circular motion of water particles in waves which exert pressure in all directions. Think of it as like the wave-power equivalent of the diode in electronics.
He demonstrated this by installing it on a model container ship.
Michael V said:
I grant that using sacrificial anodes (eg Zn) improves Al’s corrosion resistance.
Aluminium tinnies? I’ve never seen one of them corroding visibly. Sacrificial anodes? Surely not?
Postpocelipse said:
Michael V said:
I grant that using sacrificial anodes (eg Zn) improves Al’s corrosion resistance.
Aluminium tinnies? I’ve never seen one of them corroding visibly. Sacrificial anodes? Surely not?
Cathodic protection
https://en.wikipedia.org/wiki/Cathodic_protection
https://www.google.com.au/search?q=Cathodic+protection
https://www.google.com.au/search?q=Cathodic+protection&source=lnms&tbm=isch&sa=
Sacrificial anodes
http://chemwiki.ucdavis.edu/Core/Analytical_Chemistry/Electrochemistry/Case_Studies/Corrosion/Sacrificial_Anode
Galvanic anode
https://en.wikipedia.org/wiki/Galvanic_anode
Sacrificial anodes
https://www.google.com.au/search?q=Sacrificial+anodes&source=lnms&tbm=isch&sa=
Cathodic protection
https://en.wikipedia.org/wiki/Cathodic_protection
Cathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded “sacrificial metal” to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current.
Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust.
Cathodic protection can, in some cases, prevent stress corrosion cracking.
CrazyNeutrino said:
Cathodic protection
https://en.wikipedia.org/wiki/Cathodic_protectionCathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded “sacrificial metal” to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current.
Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust.
Cathodic protection can, in some cases, prevent stress corrosion cracking.
No mention of aluminium there.
Cathodic protection is normally used for steel vessels.
dv said:
CrazyNeutrino said:
Cathodic protection
https://en.wikipedia.org/wiki/Cathodic_protectionCathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded “sacrificial metal” to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current.
Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust.
Cathodic protection can, in some cases, prevent stress corrosion cracking.
No mention of aluminium there.
Cathodic protection is normally used for steel vessels.
its mentioned further down in a table
https://en.wikipedia.org/wiki/Cathodic_protection
another article
http://www.cathodicdiecasting.com.au/corrosion-and-cathodic-protection.php
dv said:
CrazyNeutrino said:
Cathodic protection
https://en.wikipedia.org/wiki/Cathodic_protectionCathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded “sacrificial metal” to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current.
Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust.
Cathodic protection can, in some cases, prevent stress corrosion cracking.
No mention of aluminium there.
Cathodic protection is normally used for steel vessels.
Postpocelipse said:
Is that an exorcism kit ?
Thought they’d have an app for that now
Cymek said:
Postpocelipse said:
!http://vamped.org/wp-content/uploads/2014/10/30803918_1_x.jpg
Is that an exorcism kit ?
Thought they’d have an app for that now
Vampire hunting kit. If the christ figures are gold then it’s catholic protection as well as cathodic
That case and its fittings look s bit taccy. Even the way they are stored is a bit dodgy.
Postpocelipse said:
Cymek said:
Postpocelipse said:
!http://vamped.org/wp-content/uploads/2014/10/30803918_1_x.jpg
Is that an exorcism kit ?
Thought they’d have an app for that now
Vampire hunting kit. If the christ figures are gold then it’s catholic protection as well as cathodic
Silly me, looking closer it does look like a vampire hunting kit, its pretty damn cool
AwesomeO said:
That case and its fittings look s bit taccy. Even the way they are stored is a bit dodgy.
It would look better if everything fitted snuggly into cut out holes