Thermodynamic Analysis For Performance Improvement of Power Plant By Flue Gas Heat Recovery System

This analysis shows that how the performance of a thermal power plant can be improved by utilization of waste exhaust flue gas energy. In a power plant, most of the heat loss is from the high-temperature flue gas leaving the boiler. To minimize these heat losses, two flue gas heat recovery systems are proposed. The waste heat of flue gas is used for regenerative heating in the heater. This reduces steam extraction from steam turbine and more power is generated. The waste heat recovery of flue gas decreases coal consumption whose utilization is related to environmental issues. This paper presents a thermodynamic analysis of a reference thermal power plant with a rated power of 500 MW to determine the change in power plant output after the proposed systems.