Energy-Exergy Analysis of Combined Reheating-Regenerative Rankine Cycle using Entropy Generation Principle
Kaushalendra Kr Dubey1, R. S. Mishra2

1Kaushalendra Kr Dubey, D/O Mechanical Engineering, Delhi Technological University, New Delhi, India.
2R. S. Mishra, D/O Mechanical Engineering, Delhi Technological University, New Delhi, India.

Manuscript received on 1 August 2019. | Revised Manuscript received on 9 August 2019. | Manuscript published on 30 September 2019. | PP: 3340-3344 | Volume-8 Issue-3 September 2019 | Retrieval Number: C5008098319/2019©BEIESP | DOI: 10.35940/ijrte.C5008.098319
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Abstract: The growing attention towards the exergy analysis of thermal systems is identifying the cause of losses, to scale the process, and rectifying the components. In this paper, the thermodynamic (energy-exergy) analysis of combined reheating and regeneration based Rankine Cycle is carried out. The energy-exergy analysis has been established for the boiler, turbines, Feed heaters, condenser and pump majorly. The result of thermodynamic analysis is estimeted in terms of 42% of plant thermal efficiency, 70 % of steam generation unit efficiency (Economizer. Super heater), Maximum heat absorbed by economizer of plant as 39% is achieved, with 40TPH of coal consumption. Boiler, High Pressure Turbine, Intermediate Pressure Turbine, Super Heater have found best performance in analysis and Reheating-Regenerative rankine method improves 6-8% in thermal efficiency also. This analysis concluded that energy efficiency is greater than exergy efficiency which identifies the power plant utilities and further improvement for efficient power generation opportunities like waste heat recovery technology employment.
Keywords: Energy-Exergy Analysis, Irreversibility Analysis, Reheating-Regeneration Rankine Cycle.

Scope of the Article:
Predictive Analysis