Previous in Forum: AC Current and SCR Drive   Next in Forum: Voltage Drop Formula
Close
Close
Close
5 comments
Rate Comments: Nested
Power-User

Join Date: Sep 2006
Posts: 128
Good Answers: 1

Geothermal Power

02/19/2007 10:19 PM

Some time ago, in the September to October time period, someone posted a question re Did anyone know of a volcano being used to generate electricity? I ran across this, reading some older CR4 entries, and now I can not find the entry to reply! If this question by a member or guest can be traced by you, you might pass along the following:

Back 3 or 4 years ago, I arranged to tour the Ormoc Geothermal plant on Leyte. The power plant is on the outskirts of Ormoc City, and off-limits to tourists. Basically, the power plant is located on an "extinct" (!) volcano. There are a large number of fissures plus drilled steam wells. Each steam well is covered by a large "muffler", which looks like a large tank, perhaps 10-15 feet high and 8 to 10 feet in diameter. Pipes carry the steam from each "muffler" to the central electrical generating plant, and the pipes and mufflers are well insulated.

The roar of steam escaping from the steam wells is loud! I have a number of photos of the area and plants, if interested.

The manager told me that they had been drilling on Mt. Pinatubo (later to be the largest volcanic explosion of the last century), but they gave up the drilling project because the steam was so acidic. I asked the manager if he knew why the steam was so acidic, and discussed the sulfur oxides entrapped in the steam, essentially creating weak sulfuric acid.

There is also a huge caldera, called Hidden Valley Springs Resort, in Alaminos, south of Manila. To visit this old caldera reminds one of the power of nature! The caldera is huge, many miles across.

If I can help the person who was looking for the information, please don't hesitate to ask, or to put him/her in touch with myself. Many thanks.

Harold Garey (Cardio-2) hegarey@comcast.net

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
United States - Member - New Member Technical Fields - Technical Writing - New Member Popular Science - Weaponology - Organizer Hobbies - Target Shooting - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Mar 2005
Posts: 2969
Good Answers: 33
#1

Re: Geothermal Power

02/20/2007 8:33 AM

Here's a link to the original entry, Cardio-2.

http://cr4.globalspec.com/thread/3357

I'll add some pathfinder tags to your own story so that a search for volcanoes and/or geothermal power will bring up both pieces.

Also, thanks for your offer of assistance. This is part of what makes CR4 "the place" for engineers.

Moose

Register to Reply
Anonymous Poster
#2
In reply to #1

Re: Geothermal Power

02/20/2007 11:31 PM

In Chile the record depth in perforation is about 9500 meters, in Russia is about 14 Km.

The temperature rises about 1ºC per 30 meters slowly accelerating to 3000 meters, but faster below some 5000 meters, but in some zones the temperature rise in function of depth is much faster. This is a competition somewhat secret, but the idea is not to use volcanoes, because that has proved to be extremely dangerous. Volcanoes should not be perforated, and in Chile it is prohibited.

I guess the idea is just to get close to the normal magma level with a diameter of some 2 meters or so, and introduce a tube with an thermal isolating division all along, but with a communication in the bottom, so the turbine injects the cold water by one side and recovers it as overheated steam by the other. The tube should be of a very flexible corrugated metal with strays alongside, and of inferior diameter of the hole, and later "inflated" to attach to the hole. For the moment is impossible to get more information, but this may be a long-term project. I have been trying to participate with sensors and the like, but until now they prefer to work using brute force and mega machines, God only knows.

Planet Earth has an ultra hyper giant energy reserve just some 20 Km below our feet, the problem is how to extract this energy without need to perforate the cortex.

Jaime Soto Figueroa

http://www.matharts.cl

Register to Reply
Active Contributor

Join Date: Nov 2006
Posts: 19
#3

Re: Geothermal Power

02/21/2007 8:55 AM

We can´t realize, why is necessary to be near a volcano! There are so much heat loss in the industries, in all the world, able to run a "low enthalpy" thermal process in better perforrmance way. They have higher temperature flow mass, over 250°C. We mean equipments in Organic Rankine Cycles (ORC) very similar to hundreds of geothermal power plants, at only 106°C. For instance, a small 1 MWe, in Altheim, Austrian: http://www.geothermie.de/gte/gte36-37/altheim_gaia.htm

Fernando Vasconcelos

Register to Reply
Participant

Join Date: Feb 2007
Posts: 2
#4

Re: Geothermal Power

02/21/2007 10:17 AM

i have gone thro one project using geothermal power for power generation in east africa- kenya in the rift valley

lot of wells bring in the geothermal power- steam thro drilled pipes for 1000 meters deep down from the earth

and being used even today in kenya - east africa for part of power generation

just for information please

Register to Reply
Power-User
Popular Science - Weaponology - New Member Popular Science - Cosmology - New Member

Join Date: Apr 2006
Posts: 261
#5

Re: Geothermal Power

02/21/2007 12:50 PM

I have head of geothermal taps in Iceland.

Try a google search.

Register to Reply
Register to Reply 5 comments
Copy to Clipboard

Users who posted comments:

ACQUAWAY (1); Anonymous Poster (1); Pragmatist (1); Steve Melito (1); vmdke (1)

Previous in Forum: AC Current and SCR Drive   Next in Forum: Voltage Drop Formula

Advertisement