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Eritsukukun |
Latest page update: made by Eritsukukun
, Oct 18 2009, 4:33 PM EDT
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3 words added 1 word deleted view changes - complete history) |
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Keyword tags:
Crazy
Experimental
Flight
Zeppelin
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| Started By | Thread Subject | Replies | Last Post | ||
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| TRENCHcoat666 | gas choice and helium production | 1 | Feb 11 2011, 2:47 PM EST by brandon_a_boyer | ||
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Thread started: Feb 11 2011, 2:06 PM EST
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I like the idea for a dirrigible aircraft post z-day when things are being rebuilt. the concept has merit and should be discussed.i dont intend to shoot holes in your balloon (pun intended) but I personally would avoid using hydrogen whether the hindenburg blew because hydrogens flammable or the paint was spray on thermite doesnt matter hydrogen could be much more productive use as feul. Helium is safe and currently cheap but that is mostly because the US is selling off there left-over reserve from pre ww1 (see link later). I suggest more of a thermal airship design (http://en.wikipedia.org/wiki/Thermal_airship).
If that is absolutely not what you want to do I submit this possibility Modern extraction and distribution For large-scale use, helium is extracted by fractional distillation from natural gas, which contains up to 7% helium. Since helium has a lower boiling point than any other element, low temperature and high pressure are used to liquefy nearly all the other gases (mostly nitrogen and methane). The resulting crude helium gas is purified by successive exposures to lowering temperatures, in which almost all of the remaining nitrogen and other gases are precipitated out of the gaseous mixture. Activated charcoal is used as a final purification step, usually resulting in 99.995% pure Grade-A helium.[5] The principal impurity in Grade-A helium is neon. In a final production step, most of the helium that is produced is liquefied via a cryogenic process. This is necessary for applications requiring liquid helium and also allows helium suppliers to reduce the cost of long distance transportation, as the largest liquid helium containers have more than five times the capacity of the largest gaseous helium tube trailers... Diffusion of crude natural gas through special semipermeable membranes and other barriers is another method to recover and purify helium http://en.wikipedia.org/wiki/Helium hope this helps
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Keyword tags:
Crazy
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| Eritsukukun | Operation: Goahead (page: 1 2) | 38 | Jul 6 2010, 3:46 PM EDT by of.virtue | ||
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Thread started: Oct 17 2009, 4:50 PM EDT
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This is the new development page of Goahead.
Feel free to give any inputs and concerns. all post saying that this is a bad idea will be ignored because all involved are aware are aware of this All post giving information and ideas on how to make the plan work better or at all will be welcomed with much warmth. You can consider this a fun experiment rather than a survival plan
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| agentaaa | How well would a zeppelin work in cold conditions. | 4 | Nov 12 2009, 5:45 PM EST by agentaaa | ||
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Thread started: Nov 11 2009, 5:13 PM EST
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I have looked around the net, and found no suitable answer, so now I will ask you people: At what temperature is a zeppelin unusable? The reason I ask is because I live in northern British Columbia in Canada, and my town regularly deals with -50 degrees Celsius in the coldest winter months.
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Keyword tags:
Crazy
Experimental
Flight
Zeppelin
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