ENERGY AND EXERGY ANALYSIS OF COMBINED GAS STEAM - CYCLE OF NET POWER OUTPUT 280 MW

U radu je napravljena usporedba proračuna idealnog i stvarnog kombiniranog plinsko parnog ciklusa. U uvodu je objašnjen princip rada i dijelovi kombiniranog plinsko parnog ciklusa. Zatim je napravljen izračun parametara zadanog plinsko-parnog ciklusa, energijska i eksergijska analiza te utjecaj kompresijskog omjera plinskog ciklusa na odnos masenih protoka zraka i pare te termički stupanj djelovanja kombiniranog ciklusa. Proračun je izvršen korištenjem koda napisanog u programskom paketu Engineering Equation Solver (EES).In this paper the calculation of the ideal and real combined gas-steam cycle is compared. In the introduction the principle of operation and the parts of the combined gas-steam cycle are described. Then the calculation of the parameters of the default gas-steam cycle, the energy and exergy analysis are performed. The influence of the compression ratio of the gas cycle on the ratio of the mass flow rates of air and steam and the thermal efficiency of the combined cycle is investigated. The calculation is executed using the code written in the Engineering Equation Solver (EES) program package