With  the  power  unit  new  energy  source  (Part  2)
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Protect the surface of the concrete floor
To protect the concrete floor, which is operated in the normal mode, or is subject to wear in areas with high traffic, there are several ways to protect the surface.
   Comparable ways: their cost, appearance and ability to perform the task to protect.
   In this article, we consider three ways to finish and protect the floor. Each of them has its advantages and disadvantages.
   Thin fil...

Finishing compositions based on water glass. Part 3
When used as part of exhaustion moderator comes coagulation and solidification of liquid glass. However, due to the presence in the composition of Portland cement with a finishing time is an increase strength of the coating due to hydration of cement minerals. Thus from colloids formed during the coagulation liquid glass are actively assigned to the water for hydration of cement, a porous media formed tumors filled Portland cement, which leads to...

Finishing compositions based on water glass. Part 2
Studies in Berlin Institute Federal institute for Materials Research and Testing, show that the average density of 1730 kg/m3 brick large proportion of pores having a size in excess of 1 micron is more than 90% [3] and they are responsible for the increased migration of fluids through brickwork.
   Most fully meet these requirements structure obtained by coagulation and water-soluble potassium silicate forming silica with a high sp...

Modernization and repair of self-propelled machines. (3)
Hardening electrolysis BORATING hinge pins and bushings mates working equipment hydraulic excavators EO-4121 (EA-4321) gives an increase in wear resistance 4-6 times compared to the bulk quenching details.
   Taking into account the high wear resistance of brazed blades, hardened sintered alloys (see Table 1), are recommended for carbide knives dumps graders DZ-122 and RS-98, combined machine E-405 based on KAMAZ, for front dumps a t...

Specialized exhibition Architecture. Construction (END)
Mari-lime brick and gas silicate blocks
   JSC "MZSK" produces silicate brick and a half, color (white, yellow, black, red, blue, green, brown).
   For the production of silica brick used quartz sand from quarries near the plant. Limestone enters the factory with Dobryatinskogo deposit Vladimir region. Silicate brick (Table 1) is used for masonry exterior and interior walls of buildings and structures, as well as ...

Geophysical processes primers and security. Part 5
In the center of Moscow can distinguish vertical structure comprising a crashing into the Earth`s crust magma elongated cylinder (Fig. 2) [5]. In the center section marked lack of extensive vertical zone converted waves ("blind spot"), going from the depths of 70-80 km to 7.5 km. Such "blind spots" are characteristic of the earth`s crust with the introduction of monolithic dense mantle rocks such as gabbro, diabase, etc. In such a zone Tashkent e...

Finishing compositions based on water glass. Part 1
The quality of the decoration of buildings for new construction and reconstruction depend not only on their aesthetic, but also the operational parameters, as good-quality finish - a guarantee of durable service basic designs, long maintenance-free operation, the costs for maintenance and care. Traditional binders used for the production of finishing compositions, liquid glass is widely used, but it has some drawback: coatings based on it gaining...

On possible amendments to the equation Griffiths
Griffith presented a picture of destruction allowed to formulate the problem of determining conditions of the beginning of crack propagation and find its general solution.
   As seen from the above schemes, in the process of crack propagation material directly adjacent to it "coasts" unloaded relaxes. This means that the stress and strain it decreases, and the elastic energy stored earlier in this area of ​​the body is re...

Construction skyscrapers - the requirements of modernity. Part 4
The program is a high-rise building in Moscow
   The project is now a high-rise building in Moscow is implemented in two main areas: the construction of business center "Moscow City" and implementation of the program of the Government of Moscow "New Ring of Russia."
   1. Moscow international business center "Moscow - City"
   The project includes the construction of buildings on the territory of abou...

Degree project - beginning of the road. (3)
Given the great diversity of subject matter and content of diplomas in various specialties, the jury is faced with great difficulties in determining the winners - "Who better violinist or a dancer?". Nevertheless, often based on emotional perception and can estimate the relevance and novelty, and the author`s contribution to the thesis project or job. Absolute winners in recent years have been graduates of Rostov CSO GASU St. Petersburg, Nizhny N...


 Information for builders



 With  the  power  unit  new  energy  source  (Part  2)

Shows that the energy source (air) supplied from ressivera 19 in manifold 26 and then be immersed in the heat exchanger 17, where the energy carrier is heated via the wall of the reactor 2 to the silicate melt. Then, the energy source, acquiring the necessary thermal power haraktristiki, the heat exchanger into the upper gas manifold assembly 5. In the latter acquires the necessary energy source parameters of pressure and temperature. 5 of collector energy source is supplied to the gas turbine 13 to generate electrical energy, heat exchangers 14 for hot water and directly on the heater for heat and gas. Such complex energoteplosnabzhenie based energy carrier gas (air) is extremely beneficial for the Far North and Far East. Construction of power plants with a power unit in the new energy source with gas energy source and GTU not be associated with the presence of water necessary
   basins and can be carried anywhere.
   The power plant produces no emissions decay products under the influence of high-modulus silicates kremnebeskislorodnyh compounds.
   Decomposition products under the influence of high modulus of silicon carbide compounds are carbon, and silicon oxide (CO, SiO). But the latter, in contrast to the products of combustion of hydrocarbon fuels in classical TEPLOAGREGAT CHP and boiler are not released into the environment by means of chimneys and go to the regeneration of the initial fuel cell. Regeneration of the original high modulus M20 silicate Si02 occurs conventional silicate glass manufacturing technology, by the reaction of the form:
   M20 (x - pi D) Si02 + piDSi02 = M20xSi02
   where pi - stoichiometric coefficient of the first reaction.
   Regeneration of the second material, ie, rods of silicon carbide by reaction occurs:
   SiC + Co = 2/3SiO2 +1 / 3SiC +2 / 3CO
   Reaction (6) in accordance with the laws of thermodynamics takes the reactants at a ratio of SiC: CO = 1:1.
   Since the whole process of regeneration of the fuel cell is a rather complicated
   character and flows through the complex of both basic and intermediate reactions, he assigned a separate paper and covered in specialized journals.
   So, release decomposition products under the influence of high-modulus silicates, silicon carbide rods - CO + SiO from the upper reservoir of the reactor via line discharged into podtopok final oxidation 22. In the cyclone furnace oxidation of the happening of the reactions. The resulting heterogeneous mixture by truboproovdu final oxidation products through the heat exchanger is given to the cyclone 9, wherein the separation of the solids produced from the gas mixture, in particular silicon dioxide powder SiO2.
   The latter, hereinafter, is on the regeneration starting silicate M20xSi02, according to reaction (5). Reaction (5) regeneration is a significant heat. The remaining final oxidation products of the cyclone by a fan (exhauster) 1 return (not thrown) in the feed line to the oxidation of the reaction products. At the uninitiated reader might think about "perpetual motion" knowledge of the law contrary to the shift of the Gibbs energy of the form:
   DG0T = u3 DGT
   where - DG0T DGT and standard Gibbs potentials and real.
   This means that the products of the reaction to further oxidizedup never 100%.
   At this time during final oxidation products of the reaction, the formation of compounds kremnebeskislorodnogo - SiC. The latter, together with otsepariruetsya SiC2 powder in a cyclone and injected into the reactor molten silicate. However, this option is only possible in the case of silicate - subcritical mass of silicate. If a power-generating unit holds a critical mass of silicate, then presents it in a mixture with SiO2 is excluded in order to avoid an explosion in the reactor. In this case, a mixture of SiO2 + SiC previously assigned, not to the reactor, and a device for separating the mixture (in the diagram this embodiment is not shown, but in the routing data).