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An exergy-based study on the relationship between costs and environmental impacts in power plants

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  • Lara, Yolanda
  • Petrakopoulou, Fontina
  • Morosuk, Tatiana
  • Boyano, Alicia
  • Tsatsaronis, George

Abstract

Exergy-based (exergetic, exergoeconomic and exergoenvironmental) analyses, are used for designing, assessing and improving energy conversion systems. In an exergoeconomic analysis, thermodynamic inefficiencies – represented by exergy destruction – are used in combination with investment costs to calculate the “cost-optimal” layout of a plant. Analogously, in an exergoenvironmental analysis, the aim is to minimize the total environmental impact of a plant. Until today exergoeconomic and exergoenvironmental analyses have been used as separate and distinct tools and the improvement of a plant has been considered in terms of the reduction of either costs or environmental impact. To simultaneously decrease the investment costs and the component-related (manufacturing or construction-related) environmental impacts, their relationship with exergy destruction must be studied in parallel. This paper examines the relationship between exergoeconomic and exergoenvironmental data under various plant operating conditions. A combined-cycle power plant is analyzed and options for a simultaneous improvement from the thermodynamic, economic and environmental viewpoints are discussed.

Suggested Citation

  • Lara, Yolanda & Petrakopoulou, Fontina & Morosuk, Tatiana & Boyano, Alicia & Tsatsaronis, George, 2017. "An exergy-based study on the relationship between costs and environmental impacts in power plants," Energy, Elsevier, vol. 138(C), pages 920-928.
    • Handle: RePEc:eee:energy:v:138:y:2017:i:c:p:920-928
    DOI: 10.1016/j.energy.2017.07.087
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    Cited by:

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    2. 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.
    3. Adrian Bejan & George Tsatsaronis, 2021. "Purpose in Thermodynamics," Energies, MDPI, vol. 14(2), pages 1-25, January.
    4. Zhang, Qi & Gao, Jintong & Wang, Yujie & Wang, Lin & Yu, Zaihai & Song, Dayong, 2019. "Exergy-based analysis combined with LCA for waste heat recovery in coal-fired CHP plants," Energy, Elsevier, vol. 169(C), pages 247-262.
    5. Tsatsaronis, George, 2024. "The future of exergy-based methods," Energy, Elsevier, vol. 302(C).
    6. Serrano-Arévalo, Tania Itzel & López-Flores, Francisco Javier & Raya-Tapia, Alma Yunuen & Ramírez-Márquez, César & Ponce-Ortega, José María, 2023. "Optimal expansion for a clean power sector transition in Mexico based on predicted electricity demand using deep learning scheme," Applied Energy, Elsevier, vol. 348(C).
    7. Aghbashlo, Mortaza & Khounani, Zahra & Hosseinzadeh-Bandbafha, Homa & Gupta, Vijai Kumar & Amiri, Hamid & Lam, Su Shiung & Morosuk, Tatiana & Tabatabaei, Meisam, 2021. "Exergoenvironmental analysis of bioenergy systems: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).

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