Harnessing Underground Magma for Power: A New Idea?

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    Idea Magma Power
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Discussion Overview

The discussion revolves around the concept of harnessing heat from underground magma channels for power generation, exploring the feasibility and implications of using geothermal energy derived from volcanic activity. Participants consider various aspects including technical challenges, environmental concerns, and potential benefits of such energy systems.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose using heat from underground magma to boil water and drive steam turbines as a stable power generation method.
  • Others mention existing geothermal energy systems, citing examples from Iceland and New Zealand, and discuss their effectiveness and historical context.
  • Concerns are raised about the political and environmental challenges of establishing power plants near active volcanoes, particularly in sensitive areas like Yellowstone.
  • Participants discuss the potential for cold spots forming around heat exchangers, which could disrupt energy production, and suggest that proper placement and sizing could mitigate this issue.
  • There is speculation about the possibility of discharging magma's energy potential to prevent eruptions while generating power, though some express skepticism about the feasibility of this approach.
  • Technical clarifications are made regarding the measurement of power output, with some participants correcting misunderstandings about energy units.
  • Some participants question the relationship between magma heat and volcanic eruptions, suggesting that pressure buildup is a more significant factor.
  • There is a discussion about the limitations of current geothermal plants, which are said to only utilize a small fraction of the potential energy available from volcanic sources.

Areas of Agreement / Disagreement

Participants express a range of views, with no clear consensus on the feasibility of using magma for power generation or the implications of such an approach. Some support the idea while others raise significant concerns and challenges.

Contextual Notes

Limitations include uncertainties about the accessibility of geothermal resources, the environmental impact of drilling in wilderness areas, and the technical challenges associated with managing heat extraction from magma.

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  • #32
mheslep said:
While building new alternative power source B might not cause the closure of existing fossil power source A in the near term, it almost certainly will preclude the construction of new fossil power source C in an expanding demand for energy.

I don't believe that to be true. I suspect that new fossil power source C will be built whenever and wherever it is both legal and profitable.
 
  • #33
mheslep said:
Yellow stone's geysers create numerous mineral pools. Are they ugly? They are certainly lethal to fish and birds. Should it be shut down?
http://2.bp.blogspot.com/_YZF8hY__8...SC_4823--dave+at+morning+glory+pool+en+wy.jpg

I am very familiar with Yellowstone's thermal pools. I believe the one shown in your photo is called "Morning Glory Pool". I find most of them attractive, although some are ugly. Ugly or attractive, the people of the United States have chosen to preserve them, and I applaud that decision.

Where did you pick up the notion that these pools kill birds and fish? The Yellowstone River is one of the prime trout streams in the world, and it contains dozens of thermal springs. I have seen numerous birds (mostly gulls) picking at trash right at the margins of these pools. If some genetic mutation brought forth a bird dumb enough to dive in, yes it would die. The process is termed natural selection.
 
  • #34
klimatos said:
I am very familiar with Yellowstone's thermal pools. I believe the one shown in your photo is called "Morning Glory Pool". I find most of them attractive, although some are ugly. Ugly or attractive, the people of the United States have chosen to preserve them, and I applaud that decision.
Of course they are and should be preserved. I'm looking for a common standard for mineral pools whether native or created by a remote geothermal well, and not a double standard to protect a private interpretation of nature.

Where did you pick up the notion that these pools kill birds and fish? The Yellowstone River is one of the prime trout streams in the world, and it contains dozens of thermal springs. I have seen numerous birds (mostly gulls) picking at trash right at the margins of these pools. If some genetic mutation brought forth a bird dumb enough to dive in, yes it would die. The process is termed natural selection.
I meant such a pool would be just as lethal to fish and birds entering them as one created by a geothermal well.
 
  • #35
klimatos said:
I don't believe that to be true. I suspect that new fossil power source C will be built whenever and wherever it is both legal and profitable.
Once the initial capital cost constructing a renewable power plant is sunk, the operating cost is typically far lower than any high fuel cost plant. C.f. the O&E costs in the chart in post 22. All types fossil energy O&E is higher than geothermal.
https://www.physicsforums.com/showpost.php?p=3521797&postcount=22
 
  • #36
mheslep said:
Of course they are and should be preserved. I'm looking for a common standard for mineral pools whether native or created by a remote geothermal well, and not a double standard to protect a private interpretation of nature.

I see nothing wrong with double standards. Such standards are well established in law, in traditions, and in the very fabric of most societies. I see no reason why I should treat man-made disasters and natural disasters the same.
 

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