-----Original Message----- From: Belinda WS [mailto:[hidden email]] Sent: Friday, July 16, 2004 1:17 PM To: [hidden email] Subject: Information about Business & Sustainable Development http://www.wbcsd.org/plugins/DocSearch/details.asp?type=DocDet&DocId=6413 Visions of a nuclear future Financial Times, 16 July 2004 - How do you turn a Green bright red? Just mention nuclear power, judging by the response of environmentalists to the growing use of the N-word in debates about future energy sources. Last week, Tony Blair told a committee of senior parliamentarians that America was pressing Britain to re-examine the case for building a new generation of nuclear power stations and that nuclear power could not be removed from the agenda. Phumzile Mlambo-Ngcuka, South Africa's minerals and energy minister, last month incurred the wrath of environmental campaigners for suggesting that nuclear power might give her nation greater energy diversity and security of supply. A few weeks earlier, Professor James Lovelock, the British environmental guru, had provoked outrage with his apparent apostasy in calling for huge investment in nuclear power to help combat global warming. Sir Crispin Tickell, a leading British environmentalist, has even managed to annoy both eco-activists and ministers by accusing the UK government of failing to make the case for nuclear power in tackling global warming. At first sight, it is hard not to share the frustration of environmentalists at being presented with a bleak choice between climatic disaster or reliance on the technology that gave us Three Mile Island, the Chernobyl disaster and thousands of tonnes of radioactive waste. Yet it is a false dichotomy, based on a view of nuclear technology as outdated as the cold war. Whisper it quietly, but experiments are about to begin on a new form of nuclear power that even eco-warriors might tolerate, if not welcome. It is radically different from the traditional reactor designs that prompt fear and loathing: for one thing, its safety is underwritten by the laws of physics, rather than human ingenuity. Better still, it can use a range of different fuels - including some that would minimise the risk of weapons production by "rogue" nations. But best of all, this new form of reactor can incinerate waste from other reactors, turning today's noxious stockpiles into energy. Such are the prospects held out by the new reactor, the Accelerator-Driven Subcritical (ADS) system. First proposed in the 1990s by scientists at the Los Alamos National Laboratory, New Mexico, and Carlo Rubbia, the Italian Nobel prize-winning physicist, the idea behind ADS is more elegant than its name. Conventional nuclear power exploits the energy released by the splitting - "fission" - of uranium atoms. Along with energy, this fission process releases neutrons capable of splitting further uranium atoms, triggering a chain reaction. If the numbers of neutrons are just sufficient to keep the reaction in balance, the result is a "critical" reactor - and a steady flow of power that today provides about 17 per cent of the world's electricity demand. But if the chain reaction runs out of control, the reactor could explode as an atomic bomb does. This has compelled designers to devise measures to prevent a disaster - yet these are no guarantee of safety. The ADS system adopts a different approach to nuclear safety - one that even Homer Simpson could not undermine. As its name implies, the ADS reactor is "sub-critical" - that is, its fuel simply does not generate enough neutrons to sustain a chain reaction. Instead, the reactor is fed with neutrons created by a particle accelerator. Cut off this supply of neutrons - deliberately or accidentally - and the reactor reverts to its natural, somnolent state. An explosive chain reaction is not just unlikely: it is prevented by the laws of physics. Moreover, as chain reaction stability no longer depends on the type of fuel used, the ADS system is a nuclear omnivore, able to work with fuels that are wholly unsuited to weapons production. To cap it all, an ADS reactor can even consume radioactive waste from conventional reactors. This holy trinity of advantages has made the ADS the subject of intense theoretical research for more than a decade. Now the theory is to be tested in experiments by an international team of scientists at Italy's Casaccia Research Centre, near Rome. A small research reactor at the centre has been modified to make it sub-critical, and a particle accelerator is to be built to feed the reactor with neutrons knocked out of a tantalum target. The first experiments, expected to start within two years, will focus simply on gaining experience in the art of feeding neutrons to a reactor. Once these are completed, the team plans to use a more powerful reactor and accelerator system to create an ADS system capable of waste incineration. A pilot plant could be completed within five years. That is the plan. In reality, the ADS approach may still harbour an unexpected problem that stops it realising its potential. Most concern surrounds the creation of the neutrons needed to feed the reactor. A commercial power station consuming substantial amounts of waste will require an accelerator substantially more powerful than any now available. However, the biggest cloud hanging over the project is the same one that has dogged nuclear power for decades: economics. No matter what its benefits, if the electricity ADS generates costs too much, it will have no role to play in future energy policy. With the public rightly chary of the return of old-style nuclear power, but a growing belief even among some environmentalists that renewables alone are not enough, a lot is riding on the success of those experiments near Rome. Copyright 2004 The Financial Times Limited Financial Times (London, England) Copyright ? 2004 LexisNexis, a division of Reed Elsevier Inc. All rights reserved. Terms and Conditions Privacy Policy Author Robert Matthews Publication Date 16.07.2004 Document Type News articles Issue/Topic Energy & Climate Region Europe Country United Kingdom Source Financial Times -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/friam_redfish.com/attachments/20040716/e666f403/attachment.htm |
Administrator
|
Reading this morning's paper, I stumbled across yet another
discussion of nuclear power and the conflict between clean, efficient power it provides and the fear of its dangers. I recalled an article Belinda sent out a while back and thought it worth forwarding, below. (The original URL was no longer valid but http://tinyurl.com/ 7kxj5 points to one that works .. and I've attached Belinda's original) I'm curious if we have more recent information within the group. For example, do we know any of the presenters at the Second Annual Workshop on Accelerator-Driven Subcritical System http://iac.isu.edu/workshops/ADSS2004_3.html Or do we know if the initial ADS research has been found flawed? This sub-critical reactor technology seems almost impossibly sweet -- even consuming existing nuclear wastes and potentially having fewer and shorter lived waste. http://www.nupecc.org/iai2001/pdf/ADS.pdf http://j-parc.jp/Transmutation/ja/asiaadspdf/06-zhao.pdf http://j-parc.jp/Transmutation/ws/pdfen/4-1_Oigawa.pdf I find it depressing that the US has blown decades of research because of the unfortunate reaction to Political Correctness. -- Owen Owen Densmore http://backspaces.net - http://redfish.com - http://friam.org Visions of a nuclear future Financial Times, 16 July 2004 - How do you turn a Green bright red? Just mention nuclear power, judging by the response of environmentalists to the growing use of the N-word in debates about future energy sources. Last week, Tony Blair told a committee of senior parliamentarians that America was pressing Britain to re-examine the case for building a new generation of nuclear power stations and that nuclear power could not be removed from the agenda. Phumzile Mlambo-Ngcuka, South Africa's minerals and energy minister, last month incurred the wrath of environmental campaigners for suggesting that nuclear power might give her nation greater energy diversity and security of supply. A few weeks earlier, Professor James Lovelock, the British environmental guru, had provoked outrage with his apparent apostasy in calling for huge investment in nuclear power to help combat global warming. Sir Crispin Tickell, a leading British environmentalist, has even managed to annoy both eco-activists and ministers by accusing the UK government of failing to make the case for nuclear power in tackling global warming. At first sight, it is hard not to share the frustration of environmentalists at being presented with a bleak choice between climatic disaster or reliance on the technology that gave us Three Mile Island, the Chernobyl disaster and thousands of tonnes of radioactive waste. Yet it is a false dichotomy, based on a view of nuclear technology as outdated as the cold war. Whisper it quietly, but experiments are about to begin on a new form of nuclear power that even eco-warriors might tolerate, if not welcome. It is radically different from the traditional reactor designs that prompt fear and loathing: for one thing, its safety is underwritten by the laws of physics, rather than human ingenuity. Better still, it can use a range of different fuels - including some that would minimise the risk of weapons production by "rogue" nations. But best of all, this new form of reactor can incinerate waste from other reactors, turning today's noxious stockpiles into energy. Such are the prospects held out by the new reactor, the Accelerator- Driven Subcritical (ADS) system. First proposed in the 1990s by scientists at the Los Alamos National Laboratory, New Mexico, and Carlo Rubbia, the Italian Nobel prize-winning physicist, the idea behind ADS is more elegant than its name. Conventional nuclear power exploits the energy released by the splitting - "fission" - of uranium atoms. Along with energy, this fission process releases neutrons capable of splitting further uranium atoms, triggering a chain reaction. If the numbers of neutrons are just sufficient to keep the reaction in balance, the result is a "critical" reactor - and a steady flow of power that today provides about 17 per cent of the world's electricity demand. But if the chain reaction runs out of control, the reactor could explode as an atomic bomb does. This has compelled designers to devise measures to prevent a disaster - yet these are no guarantee of safety. The ADS system adopts a different approach to nuclear safety - one that even Homer Simpson could not undermine. As its name implies, the ADS reactor is "sub-critical" - that is, its fuel simply does not generate enough neutrons to sustain a chain reaction. Instead, the reactor is fed with neutrons created by a particle accelerator. Cut off this supply of neutrons - deliberately or accidentally - and the reactor reverts to its natural, somnolent state. An explosive chain reaction is not just unlikely: it is prevented by the laws of physics. Moreover, as chain reaction stability no longer depends on the type of fuel used, the ADS system is a nuclear omnivore, able to work with fuels that are wholly unsuited to weapons production. To cap it all, an ADS reactor can even consume radioactive waste from conventional reactors. This holy trinity of advantages has made the ADS the subject of intense theoretical research for more than a decade. Now the theory is to be tested in experiments by an international team of scientists at Italy's Casaccia Research Centre, near Rome. A small research reactor at the centre has been modified to make it sub-critical, and a particle accelerator is to be built to feed the reactor with neutrons knocked out of a tantalum target. The first experiments, expected to start within two years, will focus simply on gaining experience in the art of feeding neutrons to a reactor. Once these are completed, the team plans to use a more powerful reactor and accelerator system to create an ADS system capable of waste incineration. A pilot plant could be completed within five years. That is the plan. In reality, the ADS approach may still harbour an unexpected problem that stops it realising its potential. Most concern surrounds the creation of the neutrons needed to feed the reactor. A commercial power station consuming substantial amounts of waste will require an accelerator substantially more powerful than any now available. However, the biggest cloud hanging over the project is the same one that has dogged nuclear power for decades: economics. No matter what its benefits, if the electricity ADS generates costs too much, it will have no role to play in future energy policy. With the public rightly chary of the return of old-style nuclear power, but a growing belief even among some environmentalists that renewables alone are not enough, a lot is riding on the success of those experiments near Rome. Copyright 2004 The Financial Times Limited Financial Times (London, England) Copyright ? 2004 LexisNexis, a division of Reed Elsevier Inc. All rights reserved. Terms and Conditions Privacy Policy -- Owen Owen Densmore http://backspaces.net - http://redfish.com - http://friam.org |
20-100 MW output power accelerators don't grow on trees or use a
negligible amount of power! And they could be used for other, less beneficial purposes. Bruce On Jan 8, 2006, at 6:25 PM, Owen Densmore wrote: > Reading this morning's paper, I stumbled across yet another > discussion of nuclear power and the conflict between clean, efficient > power it provides and the fear of its dangers. I recalled an article > Belinda sent out a while back and thought it worth forwarding, > below. (The original URL was no longer valid but http://tinyurl.com/ > 7kxj5 points to one that works .. and I've attached Belinda's > original) > > I'm curious if we have more recent information within the group. For > example, do we know any of the presenters at the > Second Annual Workshop on Accelerator-Driven Subcritical System > http://iac.isu.edu/workshops/ADSS2004_3.html > Or do we know if the initial ADS research has been found flawed? > > This sub-critical reactor technology seems almost impossibly sweet -- > even consuming existing nuclear wastes and potentially having fewer > and shorter lived waste. > http://www.nupecc.org/iai2001/pdf/ADS.pdf > http://j-parc.jp/Transmutation/ja/asiaadspdf/06-zhao.pdf > http://j-parc.jp/Transmutation/ws/pdfen/4-1_Oigawa.pdf > > I find it depressing that the US has blown decades of research > because of the unfortunate reaction to Political Correctness. > > -- Owen > > Owen Densmore > http://backspaces.net - http://redfish.com - http://friam.org > > > Visions of a nuclear future > > Financial Times, 16 July 2004 - How do you turn a Green bright red? > Just mention nuclear power, judging by the response of > environmentalists to the growing use of the N-word in debates about > future energy sources. > > Last week, Tony Blair told a committee of senior parliamentarians > that America was pressing Britain to re-examine the case for building > a new generation of nuclear power stations and that nuclear power > could not be removed from the agenda. > > Phumzile Mlambo-Ngcuka, South Africa's minerals and energy minister, > last month incurred the wrath of environmental campaigners for > suggesting that nuclear power might give her nation greater energy > diversity and security of supply. > > A few weeks earlier, Professor James Lovelock, the British > environmental guru, had provoked outrage with his apparent apostasy > in calling for huge investment in nuclear power to help combat global > warming. > > Sir Crispin Tickell, a leading British environmentalist, has even > managed to annoy both eco-activists and ministers by accusing the UK > government of failing to make the case for nuclear power in tackling > global warming. > > At first sight, it is hard not to share the frustration of > environmentalists at being presented with a bleak choice between > climatic disaster or reliance on the technology that gave us Three > Mile Island, the Chernobyl disaster and thousands of tonnes of > radioactive waste. > > Yet it is a false dichotomy, based on a view of nuclear technology as > outdated as the cold war. Whisper it quietly, but experiments are > about to begin on a new form of nuclear power that even eco-warriors > might tolerate, if not welcome. > > It is radically different from the traditional reactor designs that > prompt fear and loathing: for one thing, its safety is underwritten > by the laws of physics, rather than human ingenuity. > > Better still, it can use a range of different fuels - including some > that would minimise the risk of weapons production by "rogue" > nations. But best of all, this new form of reactor can incinerate > waste from other reactors, turning today's noxious stockpiles into > energy. > > Such are the prospects held out by the new reactor, the Accelerator- > Driven Subcritical (ADS) system. First proposed in the 1990s by > scientists at the Los Alamos National Laboratory, New Mexico, and > Carlo Rubbia, the Italian Nobel prize-winning physicist, the idea > behind ADS is more elegant than its name. > > Conventional nuclear power exploits the energy released by the > splitting - "fission" - of uranium atoms. Along with energy, this > fission process releases neutrons capable of splitting further > uranium atoms, triggering a chain reaction. > > If the numbers of neutrons are just sufficient to keep the reaction > in balance, the result is a "critical" reactor - and a steady flow of > power that today provides about 17 per cent of the world's > electricity demand. > > But if the chain reaction runs out of control, the reactor could > explode as an atomic bomb does. This has compelled designers to > devise measures to prevent a disaster - yet these are no guarantee of > safety. The ADS system adopts a different approach to nuclear safety > - one that even Homer Simpson could not undermine. > > As its name implies, the ADS reactor is "sub-critical" - that is, its > fuel simply does not generate enough neutrons to sustain a chain > reaction. Instead, the reactor is fed with neutrons created by a > particle accelerator. > > Cut off this supply of neutrons - deliberately or accidentally - and > the reactor reverts to its natural, somnolent state. An explosive > chain reaction is not just unlikely: it is prevented by the laws of > physics. > > Moreover, as chain reaction stability no longer depends on the type > of fuel used, the ADS system is a nuclear omnivore, able to work with > fuels that are wholly unsuited to weapons production. To cap it all, > an ADS reactor can even consume radioactive waste from conventional > reactors. > > This holy trinity of advantages has made the ADS the subject of > intense theoretical research for more than a decade. Now the theory > is to be tested in experiments by an international team of scientists > at Italy's Casaccia Research Centre, near Rome. > > A small research reactor at the centre has been modified to make it > sub-critical, and a particle accelerator is to be built to feed the > reactor with neutrons knocked out of a tantalum target. > > The first experiments, expected to start within two years, will focus > simply on gaining experience in the art of feeding neutrons to a > reactor. > > Once these are completed, the team plans to use a more powerful > reactor and accelerator system to create an ADS system capable of > waste incineration. A pilot plant could be completed within five > years. > > That is the plan. In reality, the ADS approach may still harbour an > unexpected problem that stops it realising its potential. Most > concern surrounds the creation of the neutrons needed to feed the > reactor. > > A commercial power station consuming substantial amounts of waste > will require an accelerator substantially more powerful than any now > available. > > However, the biggest cloud hanging over the project is the same one > that has dogged nuclear power for decades: economics. No matter what > its benefits, if the electricity ADS generates costs too much, it > will have no role to play in future energy policy. > > With the public rightly chary of the return of old-style nuclear > power, but a growing belief even among some environmentalists that > renewables alone are not enough, a lot is riding on the success of > those experiments near Rome. > > Copyright 2004 The Financial Times Limited > Financial Times (London, England) > > Copyright ? 2004 LexisNexis, a division of Reed Elsevier Inc. All > rights reserved. > Terms and Conditions Privacy Policy > > > > > > -- Owen > > Owen Densmore > http://backspaces.net - http://redfish.com - http://friam.org > > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at Mission Cafe > lectures, archives, unsubscribe, maps at http://www.friam.org |
In reply to this post by Owen Densmore
I believe there is on-going research on different ways to deal with the
waste issues, some are quite promising. While my own interests are more in renewable energy technologies, energy efficiency and distributed power, I recognize that RE in conjunction with nuclear energy is the only way we can meet the world's energy appetite and the goals of the Kyoto Protocol of controlling green house gas emissions, especially if China, India, and other countries continue their industrial growth. I guess I am your typical pragmatic Chinese. By the way, after China's unsuccessful bid to buy Unocal last year, it is in the process of buying 45% of Nigeria oil & gas fields (see http://news.bbc.co.uk/2/hi/business/4594058.stm). In the last few years, it has developed warm relationships with oil-producing countries all over the world in order to secure its near-term oil & gas needs (probably one of the reasons why the President of Venezuela could thumb his nose at the US, and why the US has not been as persuasive in OPEC's production amount in the last year). At the same time, it is developing hydro, wind, and solar, and learning about carbon sequestration because of its large coal reserve. I am more concerned about China's economic rather than military dominance in the coming years. Belinda ===== Owen Densmore wrote: >Reading this morning's paper, I stumbled across yet another >discussion of nuclear power and the conflict between clean, efficient >power it provides and the fear of its dangers. I recalled an article >Belinda sent out a while back and thought it worth forwarding, >below. (The original URL was no longer valid but http://tinyurl.com/ >7kxj5 points to one that works .. and I've attached Belinda's original) > >I'm curious if we have more recent information within the group. For >example, do we know any of the presenters at the > Second Annual Workshop on Accelerator-Driven Subcritical System > http://iac.isu.edu/workshops/ADSS2004_3.html >Or do we know if the initial ADS research has been found flawed? > >This sub-critical reactor technology seems almost impossibly sweet -- >even consuming existing nuclear wastes and potentially having fewer >and shorter lived waste. > http://www.nupecc.org/iai2001/pdf/ADS.pdf > http://j-parc.jp/Transmutation/ja/asiaadspdf/06-zhao.pdf > http://j-parc.jp/Transmutation/ws/pdfen/4-1_Oigawa.pdf > >I find it depressing that the US has blown decades of research >because of the unfortunate reaction to Political Correctness. > > -- Owen > >Owen Densmore >http://backspaces.net - http://redfish.com - http://friam.org > > >Visions of a nuclear future > >Financial Times, 16 July 2004 - How do you turn a Green bright red? >Just mention nuclear power, judging by the response of >environmentalists to the growing use of the N-word in debates about >future energy sources. > >Last week, Tony Blair told a committee of senior parliamentarians >that America was pressing Britain to re-examine the case for building >a new generation of nuclear power stations and that nuclear power >could not be removed from the agenda. > >Phumzile Mlambo-Ngcuka, South Africa's minerals and energy minister, >last month incurred the wrath of environmental campaigners for >suggesting that nuclear power might give her nation greater energy >diversity and security of supply. > >A few weeks earlier, Professor James Lovelock, the British >environmental guru, had provoked outrage with his apparent apostasy >in calling for huge investment in nuclear power to help combat global >warming. > >Sir Crispin Tickell, a leading British environmentalist, has even >managed to annoy both eco-activists and ministers by accusing the UK >government of failing to make the case for nuclear power in tackling >global warming. > >At first sight, it is hard not to share the frustration of >environmentalists at being presented with a bleak choice between >climatic disaster or reliance on the technology that gave us Three >Mile Island, the Chernobyl disaster and thousands of tonnes of >radioactive waste. > >Yet it is a false dichotomy, based on a view of nuclear technology as >outdated as the cold war. Whisper it quietly, but experiments are >about to begin on a new form of nuclear power that even eco-warriors >might tolerate, if not welcome. > >It is radically different from the traditional reactor designs that >prompt fear and loathing: for one thing, its safety is underwritten >by the laws of physics, rather than human ingenuity. > >Better still, it can use a range of different fuels - including some >that would minimise the risk of weapons production by "rogue" >nations. But best of all, this new form of reactor can incinerate >waste from other reactors, turning today's noxious stockpiles into >energy. > >Such are the prospects held out by the new reactor, the Accelerator- >Driven Subcritical (ADS) system. First proposed in the 1990s by >scientists at the Los Alamos National Laboratory, New Mexico, and >Carlo Rubbia, the Italian Nobel prize-winning physicist, the idea >behind ADS is more elegant than its name. > >Conventional nuclear power exploits the energy released by the >splitting - "fission" - of uranium atoms. Along with energy, this >fission process releases neutrons capable of splitting further >uranium atoms, triggering a chain reaction. > >If the numbers of neutrons are just sufficient to keep the reaction >in balance, the result is a "critical" reactor - and a steady flow of >power that today provides about 17 per cent of the world's >electricity demand. > >But if the chain reaction runs out of control, the reactor could >explode as an atomic bomb does. This has compelled designers to >devise measures to prevent a disaster - yet these are no guarantee of >safety. The ADS system adopts a different approach to nuclear safety >- one that even Homer Simpson could not undermine. > >As its name implies, the ADS reactor is "sub-critical" - that is, its >fuel simply does not generate enough neutrons to sustain a chain >reaction. Instead, the reactor is fed with neutrons created by a >particle accelerator. > >Cut off this supply of neutrons - deliberately or accidentally - and >the reactor reverts to its natural, somnolent state. An explosive >chain reaction is not just unlikely: it is prevented by the laws of >physics. > >Moreover, as chain reaction stability no longer depends on the type >of fuel used, the ADS system is a nuclear omnivore, able to work with >fuels that are wholly unsuited to weapons production. To cap it all, >an ADS reactor can even consume radioactive waste from conventional >reactors. > >This holy trinity of advantages has made the ADS the subject of >intense theoretical research for more than a decade. Now the theory >is to be tested in experiments by an international team of scientists >at Italy's Casaccia Research Centre, near Rome. > >A small research reactor at the centre has been modified to make it >sub-critical, and a particle accelerator is to be built to feed the >reactor with neutrons knocked out of a tantalum target. > >The first experiments, expected to start within two years, will focus >simply on gaining experience in the art of feeding neutrons to a >reactor. > >Once these are completed, the team plans to use a more powerful >reactor and accelerator system to create an ADS system capable of >waste incineration. A pilot plant could be completed within five years. > >That is the plan. In reality, the ADS approach may still harbour an >unexpected problem that stops it realising its potential. Most >concern surrounds the creation of the neutrons needed to feed the >reactor. > >A commercial power station consuming substantial amounts of waste >will require an accelerator substantially more powerful than any now >available. > >However, the biggest cloud hanging over the project is the same one >that has dogged nuclear power for decades: economics. No matter what >its benefits, if the electricity ADS generates costs too much, it >will have no role to play in future energy policy. > >With the public rightly chary of the return of old-style nuclear >power, but a growing belief even among some environmentalists that >renewables alone are not enough, a lot is riding on the success of >those experiments near Rome. > >Copyright 2004 The Financial Times Limited >Financial Times (London, England) > >Copyright ? 2004 LexisNexis, a division of Reed Elsevier Inc. All >rights reserved. >Terms and Conditions Privacy Policy > > > > > > -- Owen > >Owen Densmore >http://backspaces.net - http://redfish.com - http://friam.org > > > >============================================================ >FRIAM Applied Complexity Group listserv >Meets Fridays 9a-11:30 at Mission Cafe >lectures, archives, unsubscribe, maps at http://www.friam.org > > > |
Free forum by Nabble | Edit this page |