Kolomeyko D. Energo-economic analysis cogeneration schemes on the basis of piston thermal engines

The dissertation is devoted working out of scientific bases, creation of methods of the analysis of efficiency cogeneration schemes and installations on the basis of piston thermal engines. In work the basic advantages of application decentralised cogeneration sources of power supply and their lacks are stated. On the basis of the analysed works on the given subjects, dynamics of growth cogeneration capacities in the European community in connection with the proof tendency to increase in manufacture and en-ergy consumption is shown. In dissertational work were the conceptual device cogene-ration is considered. On the basis of the analysed thematic works definition cogenera-tion was offered. For carrying out of the analysis of efficiency cogeneration technolo-gies four groups of indicators of efficiency have been offered: power, economic, tech-nological and ecological. For definition energy efficiency indicators the method ther-modynamic and exergic analysis is offered. In work the installation working on a cycle "Vodoley" has been considered cogene-ration. Main principles of work of installation are resulted, the thermodynamic analysis of a cycle is made. On the basis of power, ecological and technological indicators of efficiency the comparative analysis has been made and schemes and the equipment in a range of elec-tric and-or thermal capacity to 20 MW are offered. It is offered five schemes of concrete realisation cogeneration installations on the basis of gas engine for needs of municipal power system. Indicators of power efficiency are defined and their thermal balances are resulted. On the basis of a standard method of division of expenses for development electric and thermal energy indicators of economic efficiency for each type of the equipment have been defined.