IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v88y2015icp57-66.html
   My bibliography  Save this article

Exergy efficiency graphs for thermal power plants

Author

Listed:
  • Taillon, J.
  • Blanchard, R.E.

Abstract

Despite the strong support for exergy in thermodynamics, the industry still relies on energy based power plant efficiencies. The paper exposes errors with energy based efficiencies and improves the graphical representation of plants efficiencies. Among others, energy efficiencies cannot recognised that Combined Heat and Power (CHP) plant may be less efficient than condensing plants or that fossil fuel based plants should always be more efficient than any biomass plants because irreversibilities from biomass spontaneous thermo-chemical reactions are much higher than with coal or natural gas. Profitability equations fail to distinguish the true technical efficiency so exergy must be used, if only to enhance power plants understanding. Two novel graphs are introduced. Graph #1 combines all in a single graph; total, electrical and thermal exergy efficiencies. Graph #2 splits thermal exergy efficiency into two components related to; plant thermal losses and useful heat output quality. Data from 24 existing and design plants is used to support the graphs. Graph #1 shows different rankings of efficiencies than what is typically understood by the industry. Graph #2 shows that achieving further higher thermal energy efficiency barely increases the total exergy efficiency. If possible, it is better to increase the useful heat output quality.

Suggested Citation

  • Taillon, J. & Blanchard, R.E., 2015. "Exergy efficiency graphs for thermal power plants," Energy, Elsevier, vol. 88(C), pages 57-66.
    • Handle: RePEc:eee:energy:v:88:y:2015:i:c:p:57-66
    DOI: 10.1016/j.energy.2015.03.055
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544215003606
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2015.03.055?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. Sjödin, Jörgen & Henning, Dag, 2004. "Calculating the marginal costs of a district-heating utility," Applied Energy, Elsevier, vol. 78(1), pages 1-18, May.
    2. Kanoglu, Mehmet & Dincer, Ibrahim & Rosen, Marc A., 2007. "Understanding energy and exergy efficiencies for improved energy management in power plants," Energy Policy, Elsevier, vol. 35(7), pages 3967-3978, July.
    3. Saidur, R. & BoroumandJazi, G. & Mekhilef, S. & Mohammed, H.A., 2012. "A review on exergy analysis of biomass based fuels," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(2), pages 1217-1222.
    4. Hepbasli, Arif, 2008. "A key review on exergetic analysis and assessment of renewable energy resources for a sustainable future," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(3), pages 593-661, April.
    5. Badami, M. & Mura, M., 2010. "Exergetic analysis of an innovative small scale combined cycle cogeneration system," Energy, Elsevier, vol. 35(6), pages 2535-2543.
    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. Guo, Yurun & Wang, Shugang & Wang, Jihong & Zhang, Tengfei & Ma, Zhenjun & Jiang, Shuang, 2024. "Key district heating technologies for building energy flexibility: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PB).
    2. Director, L.B. & Sinelshchikov, V.A., 2019. "Numerical modeling of torrefaction reactor integrated in energy technological complex," Energy, Elsevier, vol. 167(C), pages 1194-1204.
    3. Strzalka, Rafal & Schneider, Dietrich & Eicker, Ursula, 2017. "Current status of bioenergy technologies in Germany," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 801-820.
    4. Szabó, Gábor L. & Kalmár, Ferenc, 2019. "Investigation of energy and exergy performances of radiant cooling systems in buildings – A design approach," Energy, Elsevier, vol. 185(C), pages 449-462.
    5. Volkova, Anna & Krupenski, Igor & Ledvanov, Aleksandr & Hlebnikov, Aleksandr & Lepiksaar, Kertu & Latõšov, Eduard & Mašatin, Vladislav, 2020. "Energy cascade connection of a low-temperature district heating network to the return line of a high-temperature district heating network," Energy, Elsevier, vol. 198(C).
    6. Wang, Chaoyang & Liu, Ming & Zhao, Yongliang & Qiao, Yongqiang & Yan, Junjie, 2018. "Entropy generation analysis on a heat exchanger with different design and operation factors during transient processes," Energy, Elsevier, vol. 158(C), pages 330-342.
    7. 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.

    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. Kerme, Esa Dube & Orfi, Jamel & Fung, Alan S. & Salilih, Elias M. & Khan, Salah Ud-Din & Alshehri, Hassan & Ali, Emad & Alrasheed, Mohammed, 2020. "Energetic and exergetic performance analysis of a solar driven power, desalination and cooling poly-generation system," Energy, Elsevier, vol. 196(C).
    2. Carolino, Cristina Guedes & Medeiros Ferreira, João Paulo, 2013. "First and second law analyses to an energetic valorization process of biogas," Renewable Energy, Elsevier, vol. 59(C), pages 58-64.
    3. Park, S.R. & Pandey, A.K. & Tyagi, V.V. & Tyagi, S.K., 2014. "Energy and exergy analysis of typical renewable energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 105-123.
    4. Qian, Hongliang & Chen, Wei & Zhu, Weiwei & Liu, Chang & Lu, Xiaohua & Guo, Xiaojing & Huang, Dechun & Liang, Xiaodong & Kontogeorgis, Georgios M., 2019. "Simulation and evaluation of utilization pathways of biomasses based on thermodynamic data prediction," Energy, Elsevier, vol. 173(C), pages 610-625.
    5. Nixon, J.D. & Dey, P.K. & Davies, P.A., 2012. "The feasibility of hybrid solar-biomass power plants in India," Energy, Elsevier, vol. 46(1), pages 541-554.
    6. Szabó, Gábor L. & Kalmár, Ferenc, 2019. "Investigation of energy and exergy performances of radiant cooling systems in buildings – A design approach," Energy, Elsevier, vol. 185(C), pages 449-462.
    7. Atienza-Martínez, María & Ábrego, Javier & Mastral, José Francisco & Ceamanos, Jesús & Gea, Gloria, 2018. "Energy and exergy analyses of sewage sludge thermochemical treatment," Energy, Elsevier, vol. 144(C), pages 723-735.
    8. Mehak Shafiq & Muhammad Farooq & Waqas Javed & George Loumakis & Don McGlinchey, 2023. "Thermo-Hydraulic Performance Analysis of Fe 3 O 4 -Water Nanofluid-Based Flat-Plate Solar Collectors," Sustainability, MDPI, vol. 15(6), pages 1-21, March.
    9. Song, Zhiying & Ji, Jie & Cai, Jingyong & Zhao, Bin & Li, Zhaomeng, 2021. "Investigation on a direct-expansion solar-assisted heat pump with a novel hybrid compound parabolic concentrator/photovoltaic/fin evaporator," Applied Energy, Elsevier, vol. 299(C).
    10. Yilmaz, Ceyhun & Kanoglu, Mehmet, 2014. "Thermodynamic evaluation of geothermal energy powered hydrogen production by PEM water electrolysis," Energy, Elsevier, vol. 69(C), pages 592-602.
    11. Ahmadi, Pouria & Dincer, Ibrahim, 2010. "Exergoenvironmental analysis and optimization of a cogeneration plant system using Multimodal Genetic Algorithm (MGA)," Energy, Elsevier, vol. 35(12), pages 5161-5172.
    12. Juaidi, Adel & Montoya, Francisco G. & Ibrik, Imad H. & Manzano-Agugliaro, Francisco, 2016. "An overview of renewable energy potential in Palestine," Renewable and Sustainable Energy Reviews, Elsevier, vol. 65(C), pages 943-960.
    13. Trygg, Louise & Gebremedhin, Alemayehu & Karlsson, Björn G., 2006. "Resource-effective systems achieved through changes in energy supply and industrial use: The Volvo-Skövde case," Applied Energy, Elsevier, vol. 83(8), pages 801-818, August.
    14. Francis Chinweuba Eboh & Peter Ahlström & Tobias Richards, 2017. "Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review," Energies, MDPI, vol. 10(2), pages 1-29, February.
    15. Rômulo de Oliveira Azevêdo & Paulo Rotela Junior & Luiz Célio Souza Rocha & Gianfranco Chicco & Giancarlo Aquila & Rogério Santana Peruchi, 2020. "Identification and Analysis of Impact Factors on the Economic Feasibility of Photovoltaic Energy Investments," Sustainability, MDPI, vol. 12(17), pages 1-40, September.
    16. Bonev, Petyo & Glachant, Matthieu & Söderberg, Magnus, 2022. "Implicit yardstick competition between heating monopolies in urban areas: Theory and evidence from Sweden," Energy Economics, Elsevier, vol. 109(C).
    17. Peters, Jens F. & Petrakopoulou, Fontina & Dufour, Javier, 2015. "Exergy analysis of synthetic biofuel production via fast pyrolysis and hydroupgrading," Energy, Elsevier, vol. 79(C), pages 325-336.
    18. Ahmadi, Pouria & Dincer, Ibrahim & Rosen, Marc A., 2011. "Exergy, exergoeconomic and environmental analyses and evolutionary algorithm based multi-objective optimization of combined cycle power plants," Energy, Elsevier, vol. 36(10), pages 5886-5898.
    19. Maia, Cristiana Brasil & Ferreira, André Guimarães & Cabezas-Gómez, Luben & de Oliveira Castro Silva, Janaína & de Morais Hanriot, Sérgio, 2017. "Thermodynamic analysis of the drying process of bananas in a small-scale solar updraft tower in Brazil," Renewable Energy, Elsevier, vol. 114(PB), pages 1005-1012.
    20. Toghyani, Mahboubeh & Rahimi, Amir, 2015. "Exergy analysis of an industrial unit of catalyst regeneration based on the results of modeling and simulation," Energy, Elsevier, vol. 91(C), pages 1049-1056.

    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:88:y:2015:i:c:p:57-66. 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.