Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Light generated by sawdust

30.06.2006
Efficient, compact and low-cost power installation was developed by Russian researchers. The power installation generates a lot of energy from bad-quality coal, sawdust and other low-grade fuel, and it emits very little noxious gas.

The installation exists in a single copy for the time being. Students who are doing practical work for the “non-traditional power engineering” speciality are learning to work on this installation in the N.E. Bauman Moscow State Engineering University. Thus, they would find out that heat and light in big quantity may be obtained practically from waste. To this end, it is not necessary to forward to furnace birchwood and high-quality minerals – the most valuable raw stuff for chemical industry. It turns out possible to obtain power from all kinds of “garbage”, thus getting rid of it without any damage to the environment. Besides, it is relatively low-cost, which is of no small importance.

The mobile, stand-alone power installation was developed by their teachers – Yuri Maslov, Ph.D. (Engineering Sciences), assistant professor, and his colleagues from the N.E. Bauman Moscow State Engineering University, famous for magnificent engineering traditions. The power installation is intended to supply heat and light for small-size enterprises, farms and other small entities. It does not claim that it would provide a town or even a region with power. But in cases when relatively little power is needed, but there is no power transmission line network, proper roads and/or big money yet, the power installation is capable of solving the problem in any season.

The installation consists of two active units: the gas generator and the internal-combustion engine, similar to the diesel engine and in fact developed on the basis of the standard engine but with some modifications. The most important thing is the gas generator per se, that is the device that allows to convert fuel of little use into useful, or more correctly - power-generating gas with the least possible losses both for itself and the environment.

So, thermochemical processing of fuel occurs first. In essence, fuel gasification (that is solid fuel conversion into the gases capable to oxidize with energy liberation) has been known in principle for nearly one hundred years. The distinction is in figures – those of efficiency of the process, that is the ratio of costs and the quantity of obtained power, and environmental safety.

In the gas generator of the “Bauman” installation, sawdust and other waste products (woody, vegetable and even stock-raising, peat and brown coal) are initially dried a little, and then heated at certain temperature in air current. This takes place in several stages in different parts of the generator – in the drying, restoration and combustion zones. Everything is important in the process - temperature conditions and the quantity of materials of which the generator is made, and quantity of oxidant, i.e., atmospheric oxygen. All these parameters were thoroughly determined by the authors based on a large amount of experimental investigations, and engineering and physicochemical calculations.

As a result, power-generating gas coming out of such installation’s gas generator consists nearly by half from a mixture of burning gases, i.e. carbon monoxide, hydrogen, methane and oxygen, and also of carbon dioxide and nitrogen dioxide, which do not burn or damage the environment either. The installation erected in the laboratory of the engineering university, is able to generate 10 kilowatt of electric power. This is not much, but the installation is small – this is rather a pilot variant. In principle, they are designed for generation of 30 kilowatt of electric power, i.e., it is quite possible to provide for example one farm with electric power. Along with that, the farm would get rid of vegetable waste and would reduce expenses on purchase and delivery of the “standard” fuel. Of course, some farmers do not care that much about the contents of any power installation discharge or about they toxicity, as environmental safely of the installation still is not a decisive argument for farmers. Instead, they would appreciate economy and effectiveness. Ecological safety is an inalienable part of the installation.

Nadezda Markina | alfa
Further information:
http://www.informnauka.ru

More articles from Power and Electrical Engineering:

nachricht Multiregional brain on a chip
16.01.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht Researchers develop environmentally friendly soy air filter
16.01.2017 | Washington State University

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: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Water - as the underlying driver of the Earth’s carbon cycle

17.01.2017 | Earth Sciences

Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

17.01.2017 | Materials Sciences

Smart homes will “LISTEN” to your voice

17.01.2017 | Architecture and Construction

VideoLinks
B2B-VideoLinks
More VideoLinks >>>