ENERGY AND EXERGY ANALYSIS OF TYPICAL HEATING SYSTEMS

The main features of energy and exergy methods analysis the transformations efficiency in typical heating systems (boilers, electric heating, heat pumps with drive) are presented. equations balances their elements made. Based on them, expressions for calculating indicators obtained. results calculations comparison conversion coefficients (COP - Coefficient Performance) efficiencies (Exergy Efficiency or Second Low Efficiency) It is shown that based fuel boilers heaters characterized by high COP values, which does not focus taking measures to improve them. At same time, such have rather low values exergetic efficiency. a system reaches about 3%, 6,5 %. reasons thermodynamic irreversibility specified executed. diagram changes consecutive example boiler room given. irreversibilities occur at stages combustion transfer large temperature difference. In systems, losses during production electricity thermal power plants into heaters. Possibilities ways reduce from steam house its mini CHP considered. pump performed. conditions under become more efficient than defined. wide practical application revealed, despite perfection.