Russ George would say - Nuclear heat appears at the speed of light, byt can only leave at the speed of sound.
There is certainly a big difference is speed of heat creation and heat transport speed.
However, transport speed of heat depends on several parameters and is not perse always 'speed of sound' as pointed out earlier.
Weakest point of this method are the bursts of energy released, as also mentioned in Iwamura's update in the 21st Proceedings of the 21st Meeting of the Japan CF Research Society 'JCF 21' December 11-12, 2020 as posted by Alan Smith.
Excess heat is increasing with increasing temperatures. This causes very local heat avalenges that might also be destructive. Removing the excess heat in an adequate way is the biggest challenge.
Sad, and also looks bad:
"fundamental doubt from Dag and Sindre Z Gundersen about the R&D work done
by Professor Leif Holmlid.
This contradicts the pending crowdfunding on Sindre's aim.
The text of the crowdfunding description has been altered such that it does not mention Holmlid anymore, but still refers to the University Of Gotenborg.
Sounds like a conflict of interests.
Holmlid is one of the main shareholders of NFE (approx. 24%).
Translated from Nikkei Business Daily, July 16th 2021:
Fusion technology gains momentum in US and European startups.
Research on nuclear fusion, which is regarded as the ultimate energy technology, is accelerating in the world. While the construction of the main body of the International Thermonuclear Experimental Reactor (ITER), in which major countries such as Japan participate, began last year, the activities of fusion startups aiming to become the first in the power generation business with their own technology are also active. We searched for trends based on data from Astamuse (Chiyoda, Tokyo), which analyzes patent applications and research funding .
I can´t access the full article from Nikkei unfortunately. This is probably a relevant article.
Does anyone else have access to the full article (requires a subscription/account)?
Maybe of interest for thin films of palladium ?
Iwamura, Clean Planet Inc. will be interested in this, as he applies thin layers of (nobel) metals stacked upon each other.
But of course this aims firstly conventional applications like commercial catalysts (e.g. for petrol fueled cars) and proton membranes (for e.g. fuel cells) and chip industry.
...their best test shows 152 Watts in and 221 Watts out
Interest from a well-known defence contractor is disclosed for the first time.
A COP of 221/152 is pretty low and won't be sufficient to obtain commercial interest.
Looks like their current harvesting technology is not the best solution.
I would tend to think they need a different technology with higher yield.
Interest from defence is a different issue. It's probably the fundamental cause of energy gain that will interest defence rather than their current product solution. They have more resources to further improve the energy harvesting.
A new patent application is available:
Applicant:
CLEAN PLANET INC. [JP]
Inventors:
KOBAYASHI Atsushi
IWAMURA Yasuhiro
ITO Takehiko
KASAGI Jirota
YOSHINO Hideki
HIRANO Shotaro
"Abstract:
The present invention provides: a novel heat generation device and a novel heat utilization system, each of which utilizes a low-cost, clean and safe energy source; and a film-like heat generation element which serves as a low-cost, clean and safe energy source. A heat generation device 10 according to the present invention is provided with: a hollow airtight container 11; a cylinder body 12 which is provided in a hollow part 26 that is formed by the inner surface of the airtight container 11; a heat generation element 13 which is provided on the outer surface of the cylinder body 12 and generates heat by means of absorption and desorption of hydrogen contained in a hydrogen-based gas that is supplied to the hollow part 26; and a flow path 14 which is formed by the inner surface of the cylinder body 12, and in which a fluid that exchanges heat with the heat generation element 13 passes through. The heat generation element 13 comprises: a pedestal that is formed of a hydrogen storage metal or the like; and a multilayer film that is provided on the pedestal. The multilayer film comprises: a first layer that is formed of a hydrogen storage metal or the like, while having a thickness of less than 1,000 nm; and a second layer that is formed of a hydrogen storage metal, which is different from the hydrogen storage metal of the first layer, or the like, while having a thickness of less than 1,000 nm."
This is aiming for industrial implementation of earlier published technology.
I probably look at them from another angle.
Their latest youtube video shows in my view a new step in product development in the form of a closed vessel rather than the open vessels they showed earlier. Their focus seems to be on industrialization now.
BLP hasn't had any "News" posted since May, which is odd for them. They usually have news posts a couple of times a month.
If they plan a move, development probably is paused or at a slower paste in preparation of it.
F Zagury - 2021
This letter compares the footprints on a spectral axis of the main unidentified infrared
emission bands (UIBs) with the recombination lines of atomic hydrogen. The
comparison shows striking correspondences, suggesting that atomic hydrogen may
be involved in the production of UIBs.
QuoteAmong other carrier(s) that have been suggested in the literature, Rydberg matter (atoms or molecules, including hydrogen atoms, excited to high Rydberg states) proposed by Holmlid (2000) provides the closest match to the present finding.
BLP is moving to Austin.
Any source of this information?
Their website doesn't show this yet.
Here is some old data, but it is still mostly correct:
Very useful. Thanks!
Nobody should do that in France or the U.S. south of New York State. That is thermodynamically wasteful. You should use a heat pump.
From efficiency point of view you are correct of course.
Heat pumps will add up to the energy bills of households, firstly because they are not cheap, secondly they have limited lifetimes and writing them off will add to the bill.
All solar energy produced in the summer can this way be stored for use in the winter (power to gas).
Good point. This is also valid for wind energy of course.
Currently I see the focus is on power to hydrogen in the Netherlands. Heating housing with hydrogen solves the issue I pinpointed.
Challenge with hydrogen is of course storage. Long term storage of pure hydrogen is not easy and very costly.
Conversion to hydrogen to ammonia and back to hydrogen seems a better solution. Comes with efficiency reduction unfortunately.
Gamma Energy Evaluation for Creation of 111mCd, 113mIn, and115mIn Isotopes.
There is no time stamp of this publication in the paper.
I don't see how this proves your statement.
Ron, some remarks on your calculations:
- Current transport losses of electricity are around 10 - 15%.
- In France almost every household uses only electricity, also in winter, produced by nuclear power plants. Heating a house in winter by solely electricity will likely have a very heavy load to their grids. Adding battery powered cars will thus be an even bigger challenge for France with regards to infrastructure.
- The netto efficiency of electrical powered cars is much lower since currently most electricity to charge the batteries comes from energy plants that still use fossil fuels. On the longer term this will be supplied by (local) solar and wind however.
- Smart(er) grids and applications will smooth out peak demand. There are a lot of developments ongoing right now in this area.
In general I agree with you. In particular in winter, e.g. the north of Europe requires a huge over capacity of wind powered sources that is not required during summer. On the medium term this is only possible by additional nuclear power plants.
Another calculation to point out some details:
My personal household on average consumes 2400 KWh on electricity and 1200 m3 of natural gas yearly.
1200 m3 equals roughly 12000 KWh and is mainly consumed between November and March during winter. This means power consumption in winter is roughly 10 times that of summer due to heating the house. This will vary over different geographical locations of course.
COMMERCIAL HOT FUSION OR A PAIN IN THE BANK?
That is the key question indeed since there is absolutely no data on performance of this method.
Some more technical details can be found in a list of (granted) patent applications.
Should I ignore you, trash talk back, or converse?
I recommend you to read this book.
The new lithium batteries that will be the "breakthrough" for electric cars can charge @20C.
So they are full in 1/20th hour.
Current needed to charge them are total unrealistic.
Main thing about this new discovery for car applications is the extended lifetime given by the 10.000 charge cycles.
Current lithium cells have a lifespan of approximately 1000 charge cycles.
Quick charge will indeed be limited by capable infrastructure and the electrical interface limits to the car. As Jed points out, at the charger side it would be solvable, but charging sockets and cables will be the challenge. A compromise will likely occur.
This new technology will also be applicable for other battery driven objects, e.g. mobile telephones where such quick charge will be feasible.
