New generation of gas transport technologies is needed

For subsequent support of power gas turbine building in Ukraine at proper level and creation of a new generation of gas turbines the National scientific and technical program in industry of power gas turbine building is needed. «This program is presently developed by the National academy of sciences of Ukraine and leading designer organizations of Ukraine in industry of power gas turbine building». – said Boris PATON, academician, president of NAN of Ukraine.

The problems of transport and of storage of gas are the same as for oil. Producer and consumer countries are far apart and gas has to be taken from one to the other.

Thus overland gas pipelines bring Russian gas to the European Union. These gas pipelines are buried underground. The compressed gas circulates at high speed in a gas pipeline, with the aid of compression plants positioned at regular intervals along the network.

The shortage of gas during its transport is covered in the technique of transporting of gas. From Siberian deposits to the user in Europe the gas overcomes a way in a few thousand kilometers. Pressure in pipelines hesitates at level 60-100 bars and higher.

The gas is in a gaseous state at normal pressures and temperatures. This means that, for the same quantity of energy, it occupies a volume 600 times greater than that of oil. The most usual method of transportation is therefore by gas pipelines.

Gas goes in a pipeline under 100 bars, but on the way a pressure gradually becomes less: transport energy is lost simply through friction. With weakening of pressure the stream of gas slows down and at some instant would completer stop.

Therefore through every 200-300 kilometers on a pipeline the compressor stations are set. They again multiply the pressure of gases, when that already fell down to about 60 bars. Compressor stations – it is not simple pumps. Additionally to compression of gas they often clear, cool and if necessary dry out. To assure the work of such station the technical gas is needed. It is the same natural gas from a pipeline, but he is taken on support the work of the station, to return higher pressure and higher speed to gases.

The increase of pressure is provided by gas turbines or, in more old options - large diesel engines by means piston compressors. Power of every gas turbine is approximately 30 megawatts. The technical gas gives energy of 10 kilowatt-hours on a cubic meter. It means that one 30 megawatts turbine consequently requires about 3000 cubic meters on a hour or 72000 cubic meters on a day.

Thus, transporting of gas through a transit country becomes the matter of trust, and when the trust is blasted, inspectors in place can help only. If gas streams were measured consistently and everywhere, the gas would not vanish, although the measuring of the volume of gas stream in a pipeline is not simple.

For the decision of this problem today in Ukraine there are all pre-conditions. The gas turbines of simple cycle and steam gas setting of small and middle power are developed and produced, and in co-operation with Russia — Steam gas turbines of large and very-large-scale power. In particular for coverage of daily deficit of power in a volume 1100 MW in Ukraine it is necessary to set 7 steam gas turbines of 150 MW with total cost about 1 billion of dol.

Existent macro power engineering has the certain failing and limitation. In particular, they examine energy sources, which need for production of mechanic energy the use of macroscopic elements of matter, for example, motion of steam of gas, interactions of these macroscopic elements one with another, their actions on the other bodies and not deal with the structure of matter.

The other sign of macro power engineering is the use of macroscopic massive elements for intermediate transformation of kinetic energy of gas into the kinetic energy of rotors.

The macropower systems are the systems of indirect action. They need double and even triple intermediate transformation of one type of energy into the other.

Beside that, the macropower engineering mainly uses not renewable energy resources and creates considerable ecological problems.

Scientific and Production activity of Nizhyn laboratories of scanning devices (NLSD) is related with development of molecular and quantum-electronic power technologies and equipment, which are based on the use of power properties of molecules, atoms, ions and other elementary particles of matter, for the receipt of electric energy or other type of energy (mechanic or thermal) with the use of renewable energy sources: the sun, wind, gas or water.

The methods of molecular power engineering may be used to receive new technologies and equipment of gas delivery. Especially they could be used to create new molecular co-generators in the thermoelectric power stations and detander-generators in the gas distributing stations for the manufacturing of electric power.

Thus other problems important for Ukraine - reliability of Ukrainian GTS rises, potential of Ukrainian scientific and production is saved and become stronger, new workplaces on a long-term prospect and favorable terms for the wide going into an international market are created. On the whole the decision of these important tasks provides the substantial increase of power independence of Ukraine.

 

By Vasil Sidorov on April 16, 2009 in QueltaNews.com

 


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