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Enhancement of efficiency for steam cycle of thermal power plants using process integration

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  • Chauhan, Shivendra Singh
  • Khanam, Shabina

Abstract

In this study, pinch analysis is employed to integrate energy in steam cycle of a 250 MW thermal power plant (TPP) located in Rajasthan state of India. To apply pinch analysis on steam turbine, all extractions exiting the turbine are considered as hot utility and feedwater as cold utility. Pinch analysis shows the potential savings in hot and cold utilities as 9.66% and 0.77%, respectively. Considering heat transfer across the pinch in condenser, heat available in boiler blow down and flowrates of extraction of low pressure (LP) turbine, six different energy integration schemes are proposed. Results show that extraction of LP turbine entering to LPH-1 is eliminated, which saves steam extracted from turbine for preheating the feedwater and thus, extra power is generated. It is also seen that flowrates from other two extractions of LP turbine decrease marginally. Amongst six energy integration schemes, the best one indicates that using pinch analysis, net generated power is increased by 0.55% and demineralized water demand is reduced by 57.6%. Further, exergy analysis of steam cycle is carried out and compared with that of most suited retrofitted scheme. Results of the present study are compared well with that of published literature.

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  • Chauhan, Shivendra Singh & Khanam, Shabina, 2019. "Enhancement of efficiency for steam cycle of thermal power plants using process integration," Energy, Elsevier, vol. 173(C), pages 364-373.
    • Handle: RePEc:eee:energy:v:173:y:2019:i:c:p:364-373
    DOI: 10.1016/j.energy.2019.02.084
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    1. Wei, Maolin & Zhao, Xiling & Fu, Lin & Zhang, Shigang, 2017. "Performance study and application of new coal-fired boiler flue gas heat recovery system," Applied Energy, Elsevier, vol. 188(C), pages 121-129.
    2. Ahmadi, Gholam Reza & Toghraie, Davood, 2016. "Energy and exergy analysis of Montazeri Steam Power Plant in Iran," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 454-463.
    3. Wang, Yao & Du, Jian & Wu, Jintao & He, Gaohong & Kuang, Guozhu & Fan, Xishan & Yao, Pingjing & Lu, Shenglin & Li, Peiyi & Tao, Jigang & Wan, Yong & Kuang, Zhengyang & Tian, Yong, 2003. "Application of total process energy-integration in retrofitting an ammonia plant," Applied Energy, Elsevier, vol. 76(4), pages 467-480, December.
    4. Fernández-Polanco, D. & Tatsumi, H., 2016. "Optimum energy integration of thermal hydrolysis through pinch analysis," Renewable Energy, Elsevier, vol. 96(PB), pages 1093-1102.
    5. Ruohonen, Pekka & Ahtila, Pekka, 2011. "Qualitative analysis of a thermo mechanical pulp and paper mill using advanced composite curves," Energy, Elsevier, vol. 36(6), pages 3871-3877.
    6. Gaurav, Gajendra K. & Khanam, Shabina, 2017. "Profitability analysis of power generation using waste heat of sponge iron process," Energy, Elsevier, vol. 141(C), pages 333-347.
    7. Du, S. & Wang, R.Z. & Xia, Z.Z., 2014. "Optimal ammonia water absorption refrigeration cycle with maximum internal heat recovery derived from pinch technology," Energy, Elsevier, vol. 68(C), pages 862-869.
    8. Arriola-Medellín, Alejandro & Manzanares-Papayanopoulos, Emilio & Romo-Millares, César, 2014. "Diagnosis and redesign of power plants using combined Pinch and Exergy Analysis," Energy, Elsevier, vol. 72(C), pages 643-651.
    9. Han, Xiaoqu & Liu, Ming & Zhai, Mengxu & Chong, Daotong & Yan, Junjie & Xiao, Feng, 2015. "Investigation on the off-design performances of flue gas pre-dried lignite-fired power system integrated with waste heat recovery at variable external working conditions," Energy, Elsevier, vol. 90(P2), pages 1743-1758.
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    1. Jiří Jaromír Klemeš & Petar Sabev Varbanov & Paweł Ocłoń & Hon Huin Chin, 2019. "Towards Efficient and Clean Process Integration: Utilisation of Renewable Resources and Energy-Saving Technologies," Energies, MDPI, vol. 12(21), pages 1-32, October.

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