rashidas wrote: How is this for links to the Fukushima situation: http://fukushimaupdate.com/
Very professional looking. But…
Took me 3.7 seconds to scroll down to the bottom to find,
“POWERED BY WORDPRESS AND WPCRUNCHY”
It is still, just a blog written by ONE person, with zero scientific credulity rehashing the same unfounded theories
rashidas wrote: Any comments about this post on Fukushima radiation effects?
Any links to a credible, independent, scientific paper?
That blog only references other blogs.
There are a lot of specific claims regarding numbers of affected and confirmed cancer diagnoses… but no proper citing.
FYI:
Wordpress is NOT a credible source for anything.
We have to be scientific and thorough… or else we will fall into the “Cancer Clusters” hoax/scare all over again.
Ivy Matt wrote: It looks like EMC2 is opening up more now that the Navy contract is concluded. Dr. Park will be speaking at the University of Wisconsin-Madison on Monday, June 16, at 2:30 PM.
Any video from those talks?
zapkitty wrote:
Nice chart.
I believe that FF Sankey diagram has been updated:
Edit: See the attached pdf for the more recent full size version.
Ewww… I think I like the old one better. This new one is too cluttered. And doesn’t really have new information.
nemmart wrote: That doesn’t really answer my question. If we assume a 40% conversion efficiency for both X-Rays and alpha particles, is it
still possible to engineer a DPF power source? i.e., fusion energy output equal to 4x input energy?
Eric Lerner was asked, “What is the minimum conversion efficiency to be a practical power plant.” (paraphrased)…
Lerner responded, “about 70% for both Ion and X-ray”… but he is still confident that at least 80% for both is possible.
I really don’t think anywhere near as low as 40% is likely for direct conversions. Very few non-thermodynamic conversions are so poor.
*Photovoltaics are 20%-40% because of the type of photons that sunlight produces… a wide spectrum of frequencies. The material that reacts by letting photons knock off its electrons, can only do so for photons of specific energy levels (quantum)… thus wasting a whole lot of potential solar energy.
Most of the time, 40% conversion efficiency is because of thermodynamic limitations of Heat Engines… unavoidable.
Which is why this whole project is designed for Aneutronic Fusion…. not D-T or D-D fusion where most of the energy comes out as Neutrons that would be used to boil water to run a steam turbine.
Yes, it is much easier to get fusion ignition (because of the larger cross section)… but more fusion yield would be needed because of the losses downstream in the turbines. That also is the reason why costs would be high, and the physical footprint would be so large. (not to mention the radioactivity and danger of proliferation)
…
So, to answer your question… no. But the assumption is highly unlikely.
mchargue wrote: C’mon folks. Did no one else repeat this suggestion to Google? Heck, write a letter!
Of course I did…. sending an email to Google took less time than replying to this thread is all.
🙂
Awesome videos.
Three questions I had that was almost answered.
Lerner mentioned that sputtering (causing the deformation of the electrodes and requiring monthly replacement/re-depositing)… would increase again a bit going from Tungsten to Beryllium. Undoing some of the improvements going from Copper to Tungsten.
1) But what about electrode vaporization for Beryllium from 2.8 MA of current? Would that undo much of the benefits for going from Copper to Tungsten?
2) Would Beryllium electrodes cause impurities which reduce yield? (even though the atomic mass is 7 times lighter than copper)
3) Would the Beryllium electrodes need a thin surface plating of Tungsten (similar to how the Copper electrodes were Silver plated)… to prevent the loss of proper filaments and reduce vaporization?
Or would that thin surface absorb too much X-Rays and burn up?
Thanks.
Will anyone redo the animations and drawings for all the DPF graphics that show the cylindrical copper cathode? The new design looks to be very intricate.
sigh… the url redirector for ff.org is not working right. gotta manually convert every “% 2 F” into a /
EDIT: Haha… seems the forum comment system properly converted my example.
zapkitty wrote: The beryllium is to be recycled into new electrodes.
In fact I can’t think of anything in an FF unit that can’t be reused or recycled.
Component recycling and reusability shows an additional way that the FF unit’s lack of radioactive waste gives it a major advantage over all fission and D-T fusion plants.
Awesome! 🙂 thank you.
I just needed good answers to the inevitable accusations if/when this goes really public.
Like when Electric Vehicles sparked accusations that they were just trading Petroleum supply issues with Lithium Supply issues.
If Beryllium electrodes need to be replaced at regular maintenance intervals in a production machine…. would their costs (energy and money) be high enough to consider the material as “fuel”?
What interval would a replacement electrode be needed?
Monthly?
For cleaning or refurbishment or complete replacement?
Would the electrodes be recycleable?
If recycleable, what percentage is recycled? (I assume 99% would be recycleable since Beryllium is not part of the reaction)
Worst case (assuming monthly replacement without recycling electrodes):
A 5MW reactor will produce 700 MWh of electricity each month, but consume 40 kg of Beryllium…
for 17.5 MWh
Fission gets 44 MWh electrical per kg of natural Uranium
Is this a problem we will have to face?
disable excel macros. That might be why uploads are being blocked.
And everyone else… be careful opening archive files (rar)… they may contain malicious macros.
Arcing;
Leaking;
Impurities;
OH MY!
It seems that this project has been derailed from the experimental physics portion… because of need of a dedicated Materials and Engineering fabrication department.
zapkitty wrote: Hmmm… apparently the question-and-answer captcha is leaking….
not nearly as badly as the default picture captcha it replaces but
leaking nonetheless…Hi, Ignas! The members2 group is something you’re working with?
Leaking? Not again.
At least it isn’t arcing anymore.
Joeviocoe wrote: Where can I find the actual Slideshow (PPT or PDF) not the video presentation?
I want to see the details of the new Sankey diagram.
http://www.lawrencevilleplasmaphysics.com/images/Sankey.pdf
found it