Such a tube would collapse under its own weight before getting more than a few meters off the ground. Also, a very thin tube wouldn't carry much gas, so what's the point. Winds near the tropopause would cause most materials to break, including hoses attached to blimps. ----- Original Message ----- From: Albert Kallio To: Andrew Lockley ; [email protected] Cc: Geoengineering FIPC Sent: Monday, March 23, 2009 9:30 AM Subject: [geo] Re: a very simply way to lift sulfur
As per Andrews' suggestion below about nozzle up hydrogen, I think it can become turbulent and vortexes form to dissipate and dilute the gas. How about a very thin tubular plastic film that acts as a hose to stand upright when filled by compressed hydrogen - sulphur mixture. The correct throughput ratios (pressures, diameter and mixture) could be tested with short films and then the length of the film is increased gradually to the right target altitude. As hydrogen is buoyant and the pressure is slighly higher gas would keep more or less upright as long as there is gas fed into it at the rate it is seeping out from the other end, plus any leakage in the upward transmission in between (tube can deteriorate and leak). The diameter could be utilised to suit the flow. The hose would act like a long standing balloon, possibly snap in severe weather but these could be looked at and nylon reinforcement line perhaps attached to it. I would try with first very short plastic film, then adding more and more metres onto it. Ultimately, this should then go all the way up modifying the top for different conditions. Rgs, Albert ------------------------------------------------------------------------------ Date: Sun, 22 Mar 2009 17:52:42 +0000 Subject: [geo] Re: a very simply way to lift sulfur From: [email protected] To: [email protected] CC: [email protected] I think with correct design you could send up a large plume successfully into the stratosphere. High pressure gas should exit the container or nozzle at high speed, forming a very wide column of fast moving gas. Heating the gas would help also. This process is very similar to the way volcanos work. If you wanted to protect the ozone layer, then adding ozone to the mix as suggested should make a significant difference. I'm thinking of something on the scale of the gas storage towers you see in the UK, bursting open very suddenly. This would require no expensive balloons which yould turn to litter. As there was no equipment or envelope to lift, a lower concentration of H2 lifter would be needed. A 2009/3/22 Alvia Gaskill <[email protected]> No it won't. Both gases would simply be diluted by ambient air. This is what happens when railroad tank cars break open. Some of the Mt. Laki SO2 made its way into the stratosphere from the surface, but that was because the quantities were so large. The way volcanos inject gases and water vapor into the stratosphere is mostly by the speed at which the gases are propelled out of the volcano, at nearly 200 mph. Since the Overworld boundary is at 53,000 ft, it doesn't take long for the gas to reach it, even when accounting for the reduction in upward velocity due to air resistance. ----- Original Message ----- From: Andrew Lockley To: geoengineering Sent: Saturday, March 21, 2009 10:25 PM Subject: [geo] a very simply way to lift sulfur If you mixed a large volume of H2S and H2, it could be released directly to the atmosphere, and would rise by natural buoyancy. The huge plume formed should rise to the stratosphere. You could flare off the hydrogen by igniting it, or just mix in a bit of ozone for good luck. This would likely be really cheap. It would work best in laminar rising airflow. A --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
