Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Hydrogen Accumulation

07.03.2006


The hydrogen storage devices developed and patented by the scientists of the Academy of Advanced Technologies (Moscow) break all records. These are hydrogen accumulators based on microporous structures, first of all - microspheres and capillaries. Despite seeming elegance and fragility of its “filling”, the device strongly and safely retains a lot of hydrogen in a small volume. A lot of hydrogen means more than 45 grams per litre. By the way, this figure is planned by the US Department of Energy only for 2010.



These accumulators’ principle of operation was described by the author A. Chabak, Doctor of Science (Engineering) at the recent international forum “Hydrogen Technologies for Power Generation” in Moscow. Speaking simplistically, these devices operate as follows.

The covering balloon is filled with some microporous structure. These can be glass microspheres or thin capillaries made of special lightweight and durable plastics, for example, of polymers based on poly-p-phenyleneterephthalamide, better known as aramid, terlon, kevlar.


Microspheres and capillaries are hollow inside, and on the outside, they are fastened to each other with the help of a current conducting material. This can be metal, graphite or conductive adhesive.

First, the balloon and its content are heated rather heavily and filled with hydrogen under pressure. Hydrogen is penetrating through glass and plastic walls inside spheres and capillaries, filling them up. Then the device is cooled off, and the precious gas remains in the cold trap – spherules or capillaries. Of course, part of hydrogen also remains inside the balloon, in the space between microspheres.

Now, to obtain hydrogen, these microcontainers should simply be heated. To this end, it is sufficient to pass current through the material fastening capillaries or spherules. Along with that, the entire microstructure would get warm, and hydrogen will be able to “leak” outside the microcontainers. First, it would leak into the internal space of the balloon, and from it – directly to the engine. As a result, such accumulator allows at any time to feed hydrogen from a peculiar buffer capacity – space between microspheres. Heating allows to “feed” into this capacity if required. Other technologies of hydrogen filling and extracting from microcontainers are also being developed.

According to the authors, such accumulator cartridges can be installed, for example, into containers of 20x20 centimeters in size and 1 meter long, 16 pieces per each container. Three containers of this kind would find room for 4.3 to 6.35 kilograms of hydrogen. It is quite safe to keep hydrogen in these containers. In contrast to balloons, where all of the gas is stored in a single common volume (and if it explodes – all of it would blow up at once), in this case, hydrogen is distributed among multiple smallest volumes, and the explosion, at least a powerful one, is practically excluded. This is of no small importance, particularly, in case of hydrogen.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Power and Electrical Engineering:

nachricht Failures in power grids: Dynamically induced cascades
25.05.2018 | Technische Universität Dresden

nachricht Beyond the limits of conventional electronics: stable organic molecular nanowires
24.05.2018 | Tokyo Institute of Technology

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>