Thought on caves.

Off Topic » in reply to Giant Wind Turbines

Thought on caves.

REB — 2/23/2007 6:02:41 PM (archived)

I know with caves, the pressure difference between the inside and outside usually keeps the air flowing one direction or the other.

I donâ€™t know how large of a tunnel/cave system you would have to build to get this effect. It probably wouldnâ€™t be worth the energy out put you would get.

The whole thread (42 posts)

Giant Wind Turbines - SDF - 2/20/2007 7:43:15 PM
- re: Giant Wind Turbines - TB - 2/23/2007 6:09:59 PM
  - Stagnation pressure - SDF - 2/23/2007 11:34:52 PM
- Thought on caves. - REB - 2/23/2007 6:02:41 PM
  - A nice place for lunch - podrock - 2/23/2007 8:52:45 PM
  - Crawdad chimneys - Lee - 2/23/2007 6:36:10 PM
    - re: Wind chimneys - SteveS - 2/23/2007 8:21:21 PM
      - What amazes me - Lee - 2/23/2007 9:40:31 PM
        
        re: What amazes me - REB - 2/23/2007 9:54:58 PM
- re: Is there anything wrong with this design. - Johannes - 2/23/2007 4:36:01 AM
  - Vertical axis wind turbines are popular - SDF - 2/23/2007 2:01:10 PM
    - re: 200 meters by 70 meters - Johannes - 2/24/2007 11:24:18 PM
- Stormblade - podrock - 2/23/2007 1:59:59 AM
  - Interesting, but much smaller inlet diameter than what I had in mind. - SDF - 2/23/2007 2:09:20 AM
    - changing wind direction - podrock - 2/23/2007 2:13:25 AM
- The problem with wind turbines so far. - Bowser - 2/23/2007 1:56:56 AM
  - Reply deleted per poster's request. (n/t) - Mary Anne (moderator) - 2/23/2007 3:06:21 PM
- people are already trying to build simmilar devices, called 'Solar Updraft Towers' I believe, in Australia (n/t) - Yeti - 2/22/2007 9:42:26 PM
  - 'Solar Updraft Towers' - SDG - 2/23/2007 12:27:26 AM
- Make the tunnel parabolic in shape. - Chief Warhawk - 2/22/2007 8:36:02 PM
- re: Giant Wind Turbines - gbaikie - 2/22/2007 12:27:03 PM
  - Tubes up a mountain? - REB - 2/22/2007 3:56:37 PM
    - Aconcagua - Bowser - 2/23/2007 2:08:13 AM
  - All good points - SDF - 2/22/2007 1:04:08 PM
    - How about a geodescic structure? - Peter Bruener - 2/23/2007 8:04:40 PM
      - ooops, geodesic (n/t) - Peter Bruener - 2/23/2007 9:24:58 PM
    - re: All good points - gbaikie - 2/22/2007 9:11:20 PM
      - re: All good points - SDF - 2/22/2007 11:16:39 PM
        
        But I just remembered that I started this thread... Ha! So I'll do a back-of-the-envelope calculation.... - SDF - 2/23/2007 12:56:53 AM
        
        re: But I just remembered that I started this thread... Ha! So I'll do a back-of-the-envelope calculation.... - gbaikie - 2/23/2007 8:09:02 AM
        
        little trick I did there with the lateral bracing. - SDF - 2/23/2007 1:03:26 AM
        
        sorry but that's just not true. - SDG - 2/22/2007 11:43:02 PM
        
        What if there is no bedrock? (n/t) - SDF - 2/23/2007 1:11:50 AM
        
        re: What if there is no bedrock? - SDG - 2/25/2007 2:42:23 AM
- re: Giant Wind Turbines - REB - 2/21/2007 4:05:20 PM
  - Small point of information on patents - TB - 2/23/2007 6:11:29 PM
    - re: Small point of information on patents - REB - 2/23/2007 6:56:09 PM
      - re: patents - TB - 2/23/2007 8:01:08 PM
  - I'm compulsively obsessed with the idea - SDF - 2/21/2007 5:55:18 PM
    - I bet there is a grant you could get to cover R&D. - REB - 2/21/2007 7:00:45 PM
      - I'm not a college professor. - SDF - 2/21/2007 11:35:42 PM
- Cost, time-to-build. - SDF - 2/21/2007 1:55:12 PM

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The whole thread (42 posts)