Environment & Energy
Related: About this forumResearchers develop a promising new technology for grid-scale energy storage
(Nanowerk News) An interdisciplinary team of researchers from Drexel University have reported the development of a new technology for grid-scale energy storage which could provide a fast, efficient method for storing energy on the electrical grid. This new technology, dubbed the electrochemical flow capacitor, stores energy in the same way as a supercapacitor, but is much less costly to scale up for large, industrial applications. Results from the teams most recent study were published in a special issue of Advanced Energy Materials ("The Electrochemical Flow Capacitor: A New Concept for Rapid Energy Storage and Recovery" focusing on next-generation batteries.
The electrochemical flow capacitor uses a flow cell architecture, similar to existing redox flow batteries for grid storage, consisting of an electrochemical cell connected to external electrolyte reservoirs. However, this technology is unique in that it uses a flowable slurry of capacitive particles suspended in a liquid electrolyte carrier fluid. Uncharged slurry is pumped through a flow cell, where energy is stored capacitively within the solid particles. The charged slurry can then be held in reservoirs until the energy is needed, at which time the entire process is reversed. By utilizing this capacitive slurry instead of conventional battery electrolytes, the Drexel team says that its new design can be operated in high power applications for hundreds of thousands of charge-discharge cycles, vital for industrial applications.
Illustration by Kristy Jost, PhD student of Materials Science and Engineering.
It is well known that conventional supercapacitors provide very high power output with minimal degradation in performance. However, they have always had fairly limited energy storage capacity, said Dr. Yury Gogotsi, distinguished university professor and Trustee Chair of Materials Science and Engineering and director of the A.J. Drexel Nanotechnology Institute at Drexel University, one of the lead scientists on the project. By incorporating the active material of supercapacitors into a fluid, we are able to address issues of capacity and scalability by adopting the system architecture from redox flow batteries...
Read more: http://www.nanowerk.com/news/newsid=25663.php#ixzz1yqLmDU8Z
TheWraith
(24,331 posts)We've heard hundreds of these sorts of stories, and they always end up vaporware.
kristopher
(29,798 posts)But I like keeping up with new developments in the renewable sector. Since the writing is one the wall that we are moving to a distributed renewable grid there is a lot of development going on to take advantages of the niche markets within that system.
Poor Wraith, nuclear is dying and there isn't anything you can do about it...
TheWraith
(24,331 posts)Like the fact that there's no grid-level storage which has been economically produced and tested. Or that all those press releases about miraculous new forms of solar power still peter out. Jumping at every press release to announce a "miraculous breakthrough" and try to get the company more venture capital is a pretty clear sign of not understanding science that well. A breakthrough isn't a breakthrough if it doesn't work outside the lab. Oh well, maybe the next press release will mention the dozens of new coal-fired power plants Germany's conservative government is building so they can get rid of their clean nuclear power, then you'll actually acknowledge that fact.
ohiosmith
(24,262 posts)3:33 PM
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That's certainly true of those from the nuclear industry - think thorium.
http://www.democraticunderground.com/?com=view_post&forum=1127&pid=18556
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Disruptive, going to unprompted personal attacks on a poster completely unrelated to what was said.
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It beats the old theme of "Nuclear is perfectly safe" all to hell.
The new grid will need flow capacitors to moderate and balance the in/out of electricity due to the fluxes involved from solar and wind.
Glad to see someone is thinking ahead. Heck, the smart ones figured out how to control fission, surely they will, now that nukes are slacking off, find a way to keep the lights on.
They just needed a real kick in the ass and Fukushima supplied the power to do just that.
OKIsItJustMe
(19,938 posts)Don't credit Fukushima with inspiring researchers.
Researchers have been working on storage technologies for more than a year.
RobertEarl
(13,685 posts)How dare i say Fukushima is motivating anyone.
I will check with you the next time i have something to say... is that ok, OK?
OKIsItJustMe
(19,938 posts)I mean, the implication is that all of a sudden, last year, they said, Hey nuclear power may not be totally safe! Maybe we should research renewable sources for a change! (People have been working on these technologies for decades.)
RobertEarl
(13,685 posts)You are claiming Fukushima isn't motivating researchers, financiers, governments and the private sector to get moving?
But of course not. No one is that stupid. So you just want to pick a fight, then?
OKIsItJustMe
(19,938 posts)Fukushima didnt really bring anything new to the issue at all (other than perhaps pointing out that people are not good at preparing for a worst case scenario.)
People who believed that nuclear power was dangerous can point to the accident and say, See! Nuclear power is dangerous, we had multiple meltdowns! and people who believed nuclear power is safe can say, Yes we did, a plant was hit by an earthquake and a tsunami, killing thousands. At least two reactors suffered meltdowns, and we did not have a single documented casualty due to radiation exposure.
Honestly, if Chernobyl didnt kill the nuclear industry, theres no reason why Fukushima should.
So, no, I really dont think many researchers have changed course based on the events at Fukushima, and any who may have changed their course wont be announcing any dramatic new breakthroughs soon. (Research takes time, and getting a research paper accepted by a prestigious peer-reviewed journal takes even more time.)
RobertEarl
(13,685 posts)Oops, yes you do:
At least two reactors suffered meltdowns, and we did not have a single documented casualty due to radiation exposure.
That is not smart at all. Many people have died from the two reactors melting down. You really shouldn't go around spreading falsehoods like that. After all, nuclear power is not safe.
I get that you want to pick a fight with me because maybe you are so tied up with the "no casualty" meme and have nothing better to do?
Besides the reply I made first was to the The Wraith and you butting in and spreading falsehoods (whether meaning to or not) is just not smart. After all, nuclear power is NOT safe, right?
OKIsItJustMe
(19,938 posts)However, if you have reliable documentation of deaths due to nuclear exposures related to the Fukushima meltdowns, Id really like to see it.
RobertEarl
(13,685 posts)The press and government of Japan have effectively covered up reports of deaths due to the problems there. But try fukushima-diary.com for what you are looking for.
Lots of people have died around Fukushima, among them many plant workers and residents, but the press always says it was a heart attack or something.
And just try to get mortality data.
And what about Chernobyl? Do you need links for that too? Or are you wise enough to know that there was a huge coverup there, too?
You patrol the net, it is obvious from your postings. Have you never even thought about looking for mortalities or is what the M$M press tells you all you need to know, OK?
OKIsItJustMe
(19,938 posts)23 May 2012
[font size=5]Interim Findings of Fukushima-Daiichi Assessment presented at the Annual Meeting of UNSCEAR[/font]
[font size=3]VIENNA, 23 May (UN Information Service) - Some of the interim findings of a major assessment into the 11 March 2011 Fukushima-Daiichi accident will be made public today after review by international experts attending the annual meeting of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) in Vienna, 21 - 25 May 2012.
UNSCEAR now has a good understanding of the nature and composition of the releases to the atmosphere from the four damaged reactors, Wolfgang Weiss, Chair of UNSCEAR, said. Together with measurements of radioactive elements in the air, soil, water and food, the study will be able to assess doses to adults and children in different areas of Japan, considering important organs such as the thyroid.
"We have been given information about measurements made on the thyroids of over 1,000 children in Iitate village, Kawamata town and Iwaki city," said Weiss. "Also, a survey in Fukushima prefecture is aiming to evaluate irradiation levels for some 2 million people living in the prefecture at the time of the accident. The results of the UNSCEAR assessment for these areas will be compared with the Japanese measurements and analysis, and any differences will be highlighted and addressed," said Weiss.
As of 31 January 2012 a total of 20,115 TEPCO related workers, more than 80 per cent of them contractors, had been involved in operations following the accident at Fukushima-Daiichi. A key point among the interim findings is that although several workers were irradiated after contamination of their skin, no clinically observable effects have been reported. Six workers have died since the accident but none of the deaths were linked to irradiation, the findings say.
[/font][/font]
RobertEarl
(13,685 posts)Post stuff in different fonts? I think you may be the only person on all of DU that does that. You do realize most people probably don't read it when you do. I know I find it rather odd and well, weird.
Anywho, what you linked was discussed some time ago. And pretty well found meaningless considering its source and the data it relies on. But see, there is the "Six workers have died since the accident but none of the deaths were linked to irradiation, the findings say." Like I says, they call it something else.
And another anywho, I feel i can surmise that you really do think no one has been a casualty of Fukushima. Why else would you be arguing with me? Can you come right out and say? Or will you just not take a stand?
OKIsItJustMe
(19,938 posts)If you do, please, present it.
RobertEarl
(13,685 posts)A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines. Ralph Waldo Emerson
This consistency of your believing what the media tells you is foolish, just like your sig line says. Your own words. Eat them.
OKIsItJustMe
(19,938 posts)Last edited Tue Jun 26, 2012, 09:20 AM - Edit history (1)
And you count UNSCEAR as just another media outlet.
RobertEarl
(13,685 posts)Is a good friend of the nuke industry. But even they had to tell some truth: 6 dead.
Tell ya what.... if you go over there and stand next to the fire, it will do you in, right? 20,000 workers and 1M evacuated. They are moving workers thru and moving people out. If they didn't there would be a lot dead, right? So.... nuclear is not safe, they are just practicing safe nukes because they have to or the dead would be all over the news! Duh!!
Here's a link for you:
http://enenews.com/yomiuri-headline-573-deaths-related-to-nuclear-crisis
OKIsItJustMe
(19,938 posts)The story you provided a link to does not say that anyone died as a direct result of the meltdowns:
http://www.yomiuri.co.jp/dy/national/T120204003191.htm
[font size=3]The Yomiuri Shimbun
A total of 573 deaths have been certified as "disaster-related" by 13 municipalities affected by the crisis at the crippled Fukushima No. 1 nuclear power plant, according to a Yomiuri Shimbun survey.
A disaster-related death certificate is issued when a death is not directly caused by a tragedy, but by fatigue or the aggravation of a chronic disease due to the disaster. If a municipality certifies the cause of death is directly associated to a disaster, a condolence grant is paid to the victim's family. If the person was a breadwinner, 5 million yen is paid.
"During our examination of the applications, we gave emphasis to the conditions at evacuation sites and how they spent their days before they died," a city government official said. "However, the screening process was difficult in cases when people had stayed in evacuation facilities for an extended time and when there was little evidence of where they had been taking shelter."
(Feb. 5, 2012)[/font][/font]
So, these disaster-related deaths were not directly caused by (the) tragedy. Instead, these deaths were apparently caused by conditions related to the evacuation.
If you dont trust UNSCEAR, who do you trust?
RobertEarl
(13,685 posts)Under your theory that nuclear is safe, why then did they evacuate?
Why 20,000 workers cycled thru?
Jeez, for you to sit there and say that no casualties have occurred is just plain, well, you know. Pick a few really nasty adjectives and repeat them.
You have dug a hole for yourself and i wonder how in good conscience you can sit there and say all is fine when a million people have been evacuated because Fukushima blowing up is not safe!
OKIsItJustMe
(19,938 posts)Last edited Wed Jun 27, 2012, 11:27 AM - Edit history (2)
If you read through my past postings, you will find that is not the case.
However, I believe in limiting my opposition to nuclear power to well established facts. (For example, why were there large pools of spent fuel rods stored at the facility? Because no country, not even France, has a long-term disposal site for nuclear waste.)
Yes, there are real hazards involved, and this was a serious accident. Clearly, severe core damage occurred (i.e. meltdowns.) Clearly, radiation escaped containment. The cleanup will take decades, if it can ever be claimed to be finished.
To be honest, scientific views of the long-term health effects of the radiation leaks differ. (i.e. some believe that the doses are so low as to be insignificant, while others believe there is no such thing as an insignificant dose of radiation.) Thats part of the reason why I recently posted the study linking childhood leukemia to natural variations in background radiation.
However, in my opinion at least, claiming that deaths occurred due to radiation exposure, which are not credibly documented, only weakens your argument.
XemaSab
(60,212 posts)madokie
(51,076 posts)The one you gave wouldn't work for me but I found this one and here it is.
Its sort of a cross between a super capacitor and a flow battery. pretty interesting development, or to me it is.
OKIsItJustMe
(19,938 posts)Last edited Wed Jun 27, 2012, 05:03 PM - Edit history (1)
Try this one: http://onlinelibrary.wiley.com/doi/10.1002/aenm.201100768/abstract
Not sure whats going on with the DOI system lately