IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v173y2019icp364-373.html
   My bibliography  Save this article

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

Author

Listed:
  • 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.

Suggested Citation

  • 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
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544219302798
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2019.02.084?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    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. Fernández-Polanco, D. & Tatsumi, H., 2016. "Optimum energy integration of thermal hydrolysis through pinch analysis," Renewable Energy, Elsevier, vol. 96(PB), pages 1093-1102.
    3. 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.
    4. 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.
    5. 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.
    6. 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.
    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. 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.
    9. 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.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    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.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jiayou Liu & Xiaoyun Gong & Wenhua Zhang & Fengzhong Sun & Qingbiao Wang, 2020. "Experimental Study on a Flue Gas Waste Heat Cascade Recovery System under Variable Working Conditions," Energies, MDPI, vol. 13(2), pages 1-19, January.
    2. Xiao, Pengcheng & Zhang, Yanping & Wang, Yuanjing & Wang, Jizhou, 2019. "Analysis of an improved economizer system for active control of the coal-fired boiler flue gas temperature," Energy, Elsevier, vol. 170(C), pages 185-198.
    3. Ibrahim, Thamir K. & Mohammed, Mohammed Kamil & Awad, Omar I. & Abdalla, Ahmed N. & Basrawi, Firdaus & Mohammed, Marwah N. & Najafi, G. & Mamat, Rizalman, 2018. "A comprehensive review on the exergy analysis of combined cycle power plants," Renewable and Sustainable Energy Reviews, Elsevier, vol. 90(C), pages 835-850.
    4. Liu, Yinhe & Li, Qinlun & Duan, Xiaoli & Zhang, Yun & Yang, Zhen & Che, Defu, 2018. "Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant," Energy, Elsevier, vol. 145(C), pages 25-37.
    5. Du, S. & Wang, R.Z. & Xia, Z.Z., 2015. "Graphical analysis on internal heat recovery of a single stage ammonia–water absorption refrigeration system," Energy, Elsevier, vol. 80(C), pages 687-694.
    6. Josip Orović & Vedran Mrzljak & Igor Poljak, 2018. "Efficiency and Losses Analysis of Steam Air Heater from Marine Steam Propulsion Plant," Energies, MDPI, vol. 11(11), pages 1-18, November.
    7. Mo, Qianci & Zhu, Xishan & Deng, Chenquan & Cen, Shuhai & Ye, Haibo & Wang, Chunqiang & Lu, Wei & Chen, Xiaojun & Lin, Xingsu, 2023. "Analysis on influencing factors and improvement of thermal efficiency of bagasse boilers based on performance test data," Energy, Elsevier, vol. 271(C).
    8. Rajabi, Mahsa & Mehrpooya, Mehdi & Haibo, Zhao & Huang, Zhen, 2019. "Chemical looping technology in CHP (combined heat and power) and CCHP (combined cooling heating and power) systems: A critical review," Applied Energy, Elsevier, vol. 253(C), pages 1-1.
    9. Hanaoka, Toshiaki & Fujimoto, Shinji & Kihara, Hideyuki, 2019. "Improvement of the 1,3-butadiene production process from lignin – A comparison with the gasification power generation process," Renewable Energy, Elsevier, vol. 135(C), pages 1303-1313.
    10. Kadam, Sambhaji T. & Gkouletsos, Dimitris & Hassan, Ibrahim & Rahman, Mohammad Azizur & Kyriakides, Alexios-Spyridon & Papadopoulos, Athanasios I. & Seferlis, Panos, 2020. "Investigation of binary, ternary and quaternary mixtures across solution heat exchanger used in absorption refrigeration and process modifications to improve cycle performance," Energy, Elsevier, vol. 198(C).
    11. Gao, Jintong & Zhang, Qi & Wang, Xiaozhuang & Song, Dayong & Liu, Weiqi & Liu, Wenchao, 2018. "Exergy and exergoeconomic analyses with modeling for CO2 allocation of coal-fired CHP plants," Energy, Elsevier, vol. 152(C), pages 562-575.
    12. C, Alimonti & P, Conti & E, Soldo, 2019. "A comprehensive exergy evaluation of a deep borehole heat exchanger coupled with a ORC plant: the case study of Campi Flegrei," Energy, Elsevier, vol. 189(C).
    13. Singh, Pushpendra & Meena, Nand K. & Yang, Jin & Vega-Fuentes, Eduardo & Bishnoi, Shree Krishna, 2020. "Multi-criteria decision making monarch butterfly optimization for optimal distributed energy resources mix in distribution networks," Applied Energy, Elsevier, vol. 278(C).
    14. Li, Huiquan & Bao, Weijun & Xiu, Caihong & Zhang, Yi & Xu, Hongbin, 2010. "Energy conservation and circular economy in China's process industries," Energy, Elsevier, vol. 35(11), pages 4273-4281.
    15. Yan, Min & Zhang, Liang & Shi, Yuetao & Zhang, Liqiang & Li, Yuzhong & Ma, Chunyuan, 2018. "A novel boiler cold-end optimisation system based on bypass flue in coal-fired power plants: Heat recovery from wet flue gas," Energy, Elsevier, vol. 152(C), pages 84-94.
    16. Andrea Aquino & Pietro Poesio, 2021. "Off-Design Exergy Analysis of Convective Drying Using a Two-Phase Multispecies Model," Energies, MDPI, vol. 14(1), pages 1-36, January.
    17. Zhang, Hao & Lai, Yanhua & Yang, Xiao & Li, Chang & Dong, Yong, 2022. "Non-evaporative solvent extraction technology applied to water and heat recovery from low-temperature flue gas: Parametric analysis and feasibility evaluation," Energy, Elsevier, vol. 244(PB).
    18. Jonynas, Rolandas & Puida, Egidijus & Poškas, Robertas & Paukštaitis, Linas & Jouhara, Hussam & Gudzinskas, Juozas & Miliauskas, Gintautas & Lukoševičius, Valdas, 2020. "Renewables for district heating: The case of Lithuania," Energy, Elsevier, vol. 211(C).
    19. Fu, Lin & Li, Yonghong & Wu, Yanting & Wang, Xiaoyin & Jiang, Yi, 2021. "Low carbon district heating in China in 2025- a district heating mode with low grade waste heat as heat source," Energy, Elsevier, vol. 230(C).
    20. Laskowski, Rafał & Smyk, Adam & Rusowicz, Artur & Grzebielec, Andrzej, 2020. "A useful formulas to describe the performance of a steam condenser in off-design conditions," Energy, Elsevier, vol. 204(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:173:y:2019:i:c:p:364-373. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.