INCREASING THE EFFICIENCY OF COMBINED PRODUCTION HEAT AND ELECTRICITY
| Autor: | Maxim Olegovich Maximov |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
комбинированное производство тепловой и электрической энергии
Waste management газотурбинные установки business.industry тэц паровые турбины парогазовые установки кпд системы теплоснабжения пиковые котлы T1-995 Environmental science Production (economics) Electricity котельные business Technology (General) |
| Zdroj: | Globus: технические науки, Vol 7, Iss 2(38), Pp 58-66 (2021) |
| ISSN: | 2713-3079 |
| DOI: | 10.52013/2713-3079-38-2-9 |
| Popis: | The main directions of increasing the efficiency of combined production of electric and heat energy are considered, associated with the improvement of power generating equipment, regime and circuit changes in heat supply systems while ensuring heat load. For many years, centralized heat supply based on combined heat and power generation has been successfully developing in Russia, which is a very attractive energy and nature saving technology. Its use makes it possible to save about 20 million tons of fuel annually, which is about 14% of the total volume of fuel consumed in Russia for the needs of heat supply. More than 50% of electricity is generated at CHPPs in Russia, and the efficiency of fuel use at them reaches about 70–75%. Such areas include the use of steam and gas technologies (CCGT units and gas turbine superstructures of equipment of operating CHPPs) and GTU-CHPPs, increasing the initial steam parameters at CHPPs, superstructure of hot water boilers with gas turbine units, improvement and modernization of existing turbine equipment and CHPP schemes, as well as rejection of peak boilers in favor of peak boilers at CHPPs, transition to a lower temperature schedule and a change in the structure of heat supply systems. The main advantages of these areas and the problems associated with their implementation are presented. The conditions of possible and expedient application of some directions are considered. It is shown that, in many respects, the choice of certain technical solutions, despite the energy efficiency, is determined by the conditions of the regional heat and electric energy markets. |
| Databáze: | OpenAIRE |
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