Exergetic and energetic analysis of a 210 MW Thermal Power Plant in Pakistan

Abstract

-Exergetic analysis is a modern tool to assess the optimum thermal performance of a power plant during design as well as during its operational period. This approach can identify the components of low efficiency in the running plant and therefore suitable corrective action can be applied to enhance the performance of a plant. In this study exergetic and energetic analysis of Thermal Power Station Muzaffargarh in Pakistan is carried out with an objective to explore the sites having highest exergetic and energetic losses in the system. Component wise modelling is used to estimate the performance of the plant by incorporating the effects of varying environmental conditions. It has been found that highest energetic losses happened in the condenser system where 295 MW was lost in the atmosphere. The percent ratio of irreversibility to the total irreversibility of the boiler system was 84 % and 9 % of the condenser system. The system energetic efficiency calculated on the basis of the fuel lower heating value was 34%, and exergetic efficiency of power cycle was 32%. In addition, a parametric analysis of the plant performance by varying parameters at the inlet of turbine section has also been presented.