EURO-ECO 2010 Hanover 2 - 3 Dezember 2010	Environmental, Engineering - Economic and Legal Aspects for Sustainable Living
	European Academy of Natural Sciences, Hanover European Scientific Society, Hanover University of Bremen, Bremen

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The report examines the production of electricity and heat in combined cycle (CCP), which is the most effective way to solve economic and environmental problems.

Due to adoption of the Energy Strategy, energy production in Russia will increase. In general, the projected growth should be achieved both through the application of new technologies and by improving the efficiency of existing combined heat power plants (CHPP) by means of their reconstruction. Development Strategy of Energy of Russia provides for the widespread use of combined-cycle technology. The main area will be the transition from steam to a combined heat power plants (CHPP) on gas, and later - at an coal.

The effectiveness of combined-cycle plants is substantially higher than steam. This is due to significant fuel savings, reduced levels of investment and the metal content per unit of input power, reducing the duration of building coal, etc.

Combination gas-turbine unit (GTU) and steam-turbine unit (STU) to one power unit realize in various ways, in this case produces a different thermal circuit: with high-pressure steam generator, the dumping of gas turbine units in the heat-recovery boiler (binary CCP), the dumping of gas turbine units in the furnace and convective shaft (CCP LPSG – with low-pressure steam generator), the dumping of gas turbine units in the gas-water heater (GWH) with the displacement of the regeneration system, the dumping of gas turbine units in the gas-delivery water heater (GDWH) with the displacement of the delivery water, with coal gasification.

The application of CCP enables:

• to ensure the growth efficiency of CCP up to 60%, and heating CCP operating in condensation conditions may have efficiency up to 45…50%, i.e. to level unattainable for other heat engines;
• to improve fuel efficiency (resource- economy technology);
• to reduce the environmental load in place of functioning:
• reduction of harmful emissions into the atmosphere,
• reduction of specific emissions of nitrogen oxides and sulfur through the use of natural gas,
• changes in the content of harmful substances in flue gases as compared to traditional combined heat power plants.

All this allows to reduce costs in environmental infrastructure.

 

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