Dave Halliday

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since Sep 10, 2014
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Recent posts by Dave Halliday

paul wheaton wrote:Of course, when your mission is world domination you need a hollowed out volcano with good submarine access. That's just standard operating procedure. We don't have a submarine yet, but we did happen across somebody in montana that does:



And then, there is the real hollowed out volcano with good submarine access. Check out http://www.vulcaniasubmarine.com/

This site is deep ('Ar 'ar 'ar...) and yes, this is the real deal (except for the hollowed out volcano part). Pat has been doing this (building real subs, model subs and real and model diving equipment) since the 1980's

And this post is on topic as if you reference the book and the Disney movie, the good Capt'n tends his own seaweed farms.
6 years ago

Rick Edwards wrote:Hello everybody, Rick Edwards here. Currently acting as Wheaton Laboratories Base Camp Fireman.
We are just now receiving the last of all the items requested for the event.
Very exciting times!

The current Fire to put out so I can get to all my other fires is peltier electricity generation from the rocket mass heaters.
We want the ability to have a Peltier (also known as TEG, TEC and TEM) setup on a RMH to generate enough electricity to run a fan that would be installed at the end of the duct run to offer positive pull through the system.
As I'm looking into this, the options and variables seem dizzying.

There are cheap ones, expensive ones, regular heat ones, high heat ones, varrying wattage ones. so on, so on, so on.



Actually, Peltier arrays are optimized to generate thermal differences with an input of electricity instead of using a thermal input to generate an output of electricity. An additional problem is that Peltier arrays are made using semiconductor materials which are sensitive to overall heat and can be destroyed with over temperature.

What you are looking for is a thermopile which is another word for an array of thermocouples. You can use copper and iron wire to make these but the output voltage is very very low (high current though).
6 years ago