IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i8p1185-d107909.html
   My bibliography  Save this article

Off-Design Performances of Subcritical and Supercritical Organic Rankine Cycles in Geothermal Power Systems under an Optimal Control Strategy

Author

Listed:
  • Tieyu Gao

    (Institute of Turbomachinery, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Changwei Liu

    (Institute of Turbomachinery, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

The conditions of heat source and heat sink in a geothermal ORC system may frequently vary due to variations in geological conditions, ambient temperature and actual operation. In this study, an off-design performance prediction model for geothermal ORC systems is developed according to special designs of critical components, and an optimal control strategy which regards the turbine guide vane angle, the refrigerant pump rotational speed and the cooling water mass flow rate as control variables is proposed to maximize the net power output. Off-design performances of both subcritical and supercritical ORCs are analyzed. The results indicate that, under the optimal control strategy, the net power output of both ORCs increase with greater geothermal water mass flow rate, higher geothermal water inlet temperature and lower cooling water inlet temperature, which is mainly due to a greater working fluid mass flow rate, higher turbine inlet pressure and lower condensing pressure, respectively. The net power output of supercritical ORC is always greater than that of subcritical ORC within the range of this study, but the difference tends to decrease when supercritical ORC activates the geothermal water reinjection temperature restriction.

Suggested Citation

  • Tieyu Gao & Changwei Liu, 2017. "Off-Design Performances of Subcritical and Supercritical Organic Rankine Cycles in Geothermal Power Systems under an Optimal Control Strategy," Energies, MDPI, vol. 10(8), pages 1-25, August.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:8:p:1185-:d:107909
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/8/1185/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/10/8/1185/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Mazzi, N. & Rech, S. & Lazzaretto, A., 2015. "Off-design dynamic model of a real Organic Rankine Cycle system fuelled by exhaust gases from industrial processes," Energy, Elsevier, vol. 90(P1), pages 537-551.
    2. Shengjun, Zhang & Huaixin, Wang & Tao, Guo, 2011. "Performance comparison and parametric optimization of subcritical Organic Rankine Cycle (ORC) and transcritical power cycle system for low-temperature geothermal power generation," Applied Energy, Elsevier, vol. 88(8), pages 2740-2754, August.
    3. Liu, Qiang & Duan, Yuanyuan & Yang, Zhen, 2013. "Performance analyses of geothermal organic Rankine cycles with selected hydrocarbon working fluids," Energy, Elsevier, vol. 63(C), pages 123-132.
    4. Ge, Zhong & Wang, Hua & Wang, Hui-Tao & Wang, Jian-Jun & Li, Ming & Wu, Fu-Zhong & Zhang, Song-Yuan, 2015. "Main parameters optimization of regenerative organic Rankine cycle driven by low-temperature flue gas waste heat," Energy, Elsevier, vol. 93(P2), pages 1886-1895.
    5. Yodha Y. Nusiaputra & Hans-Joachim Wiemer & Dietmar Kuhn, 2014. "Thermal-Economic Modularization of Small, Organic Rankine Cycle Power Plants for Mid-Enthalpy Geothermal Fields," Energies, MDPI, vol. 7(7), pages 1-20, July.
    6. Usman, Muhammad & Imran, Muhammad & Yang, Youngmin & Lee, Dong Hyun & Park, Byung-Sik, 2017. "Thermo-economic comparison of air-cooled and cooling tower based Organic Rankine Cycle (ORC) with R245fa and R1233zde as candidate working fluids for different geographical climate conditions," Energy, Elsevier, vol. 123(C), pages 353-366.
    7. Hu, Dongshuai & Zheng, Ya & Wu, Yi & Li, Saili & Dai, Yiping, 2015. "Off-design performance comparison of an organic Rankine cycle under different control strategies," Applied Energy, Elsevier, vol. 156(C), pages 268-279.
    8. Ben-Ran Fu & Sung-Wei Hsu & Yuh-Ren Lee & Jui-Ching Hsieh & Chia-Ming Chang & Chih-Hsi Liu, 2014. "Performance of a 250 kW Organic Rankine Cycle System for Off-Design Heat Source Conditions," Energies, MDPI, vol. 7(6), pages 1-11, June.
    9. Chen, Huijuan & Goswami, D. Yogi & Stefanakos, Elias K., 2010. "A review of thermodynamic cycles and working fluids for the conversion of low-grade heat," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 3059-3067, December.
    10. Rajabloo, Talieh & Bonalumi, Davide & Iora, Paolo, 2017. "Effect of a partial thermal decomposition of the working fluid on the performances of ORC power plants," Energy, Elsevier, vol. 133(C), pages 1013-1026.
    11. Lecompte, S. & Huisseune, H. & van den Broek, M. & De Schampheleire, S. & De Paepe, M., 2013. "Part load based thermo-economic optimization of the Organic Rankine Cycle (ORC) applied to a combined heat and power (CHP) system," Applied Energy, Elsevier, vol. 111(C), pages 871-881.
    12. Toffolo, Andrea & Lazzaretto, Andrea & Manente, Giovanni & Paci, Marco, 2014. "A multi-criteria approach for the optimal selection of working fluid and design parameters in Organic Rankine Cycle systems," Applied Energy, Elsevier, vol. 121(C), pages 219-232.
    13. Sauret, Emilie & Rowlands, Andrew S., 2011. "Candidate radial-inflow turbines and high-density working fluids for geothermal power systems," Energy, Elsevier, vol. 36(7), pages 4460-4467.
    14. Ibarra, Mercedes & Rovira, Antonio & Alarcón-Padilla, Diego-César & Blanco, Julián, 2014. "Performance of a 5kWe Organic Rankine Cycle at part-load operation," Applied Energy, Elsevier, vol. 120(C), pages 147-158.
    15. Le, Van Long & Feidt, Michel & Kheiri, Abdelhamid & Pelloux-Prayer, Sandrine, 2014. "Performance optimization of low-temperature power generation by supercritical ORCs (organic Rankine cycles) using low GWP (global warming potential) working fluids," Energy, Elsevier, vol. 67(C), pages 513-526.
    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. Angelo Algieri, 2018. "Energy Exploitation of High-Temperature Geothermal Sources in Volcanic Areas—a Possible ORC Application in Phlegraean Fields (Southern Italy)," Energies, MDPI, vol. 11(3), pages 1-17, March.
    2. Syamimi Saadon & Nur Athirah Mohd Nasir, 2020. "Performance and Sustainability Analysis of an Organic Rankine Cycle System in Subcritical and Supercritical Conditions for Waste Heat Recovery," Energies, MDPI, vol. 13(12), pages 1-24, June.
    3. Zinsalo, Joël M. & Lamarche, Louis & Raymond, Jasmin, 2022. "Performance analysis and working fluid selection of an Organic Rankine Cycle Power Plant coupled to an Enhanced Geothermal System," Energy, Elsevier, vol. 245(C).
    4. Choi, Hong Wone & Na, Sun-Ik & Hong, Sung Bin & Chung, Yoong & Kim, Dong Kyu & Kim, Min Soo, 2021. "Optimal design of organic Rankine cycle recovering LNG cold energy with finite heat exchanger size," Energy, Elsevier, vol. 217(C).
    5. Liu, Changwei & Gao, Tieyu, 2019. "Off-design performance analysis of basic ORC, ORC using zeotropic mixtures and composition-adjustable ORC under optimal control strategy," Energy, Elsevier, vol. 171(C), pages 95-108.

    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. Liu, Changwei & Gao, Tieyu, 2019. "Off-design performance analysis of basic ORC, ORC using zeotropic mixtures and composition-adjustable ORC under optimal control strategy," Energy, Elsevier, vol. 171(C), pages 95-108.
    2. Li, Jian & Ge, Zhong & Duan, Yuanyuan & Yang, Zhen & Liu, Qiang, 2018. "Parametric optimization and thermodynamic performance comparison of single-pressure and dual-pressure evaporation organic Rankine cycles," Applied Energy, Elsevier, vol. 217(C), pages 409-421.
    3. Steven Lecompte & Sanne Lemmens & Henk Huisseune & Martijn Van den Broek & Michel De Paepe, 2015. "Multi-Objective Thermo-Economic Optimization Strategy for ORCs Applied to Subcritical and Transcritical Cycles for Waste Heat Recovery," Energies, MDPI, vol. 8(4), pages 1-28, April.
    4. Fuhaid Alshammari & Apostolos Karvountzis-Kontakiotis & Apostolos Pesyridis & Muhammad Usman, 2018. "Expander Technologies for Automotive Engine Organic Rankine Cycle Applications," Energies, MDPI, vol. 11(7), pages 1-36, July.
    5. Li, Jian & Liu, Qiang & Ge, Zhong & Duan, Yuanyuan & Yang, Zhen & Di, Jiawei, 2017. "Optimized liquid-separated thermodynamic states for working fluids of organic Rankine cycles with liquid-separated condensation," Energy, Elsevier, vol. 141(C), pages 652-660.
    6. Lecompte, S. & Huisseune, H. & van den Broek, M. & De Paepe, M., 2015. "Methodical thermodynamic analysis and regression models of organic Rankine cycle architectures for waste heat recovery," Energy, Elsevier, vol. 87(C), pages 60-76.
    7. Yi, Zhitong & Luo, Xianglong & Chen, Jianyong & Chen, Ying, 2017. "Mathematical modelling and optimization of a liquid separation condenser-based organic Rankine cycle used in waste heat utilization," Energy, Elsevier, vol. 139(C), pages 916-934.
    8. Lecompte, Steven & Huisseune, Henk & van den Broek, Martijn & Vanslambrouck, Bruno & De Paepe, Michel, 2015. "Review of organic Rankine cycle (ORC) architectures for waste heat recovery," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 448-461.
    9. Kazemi, Shabnam & Nor, Mohamad Iskandr Mohamad & Teoh, Wen Hui, 2020. "Thermodynamic and economic investigation of an ionic liquid as a new proposed geothermal fluid in different organic Rankine cycles for energy production," Energy, Elsevier, vol. 193(C).
    10. Habka, Muhsen & Ajib, Salman, 2015. "Evaluation of mixtures performances in Organic Rankine Cycle when utilizing the geothermal water with and without cogeneration," Applied Energy, Elsevier, vol. 154(C), pages 567-576.
    11. Sanne Lemmens, 2016. "Cost Engineering Techniques and Their Applicability for Cost Estimation of Organic Rankine Cycle Systems," Energies, MDPI, vol. 9(7), pages 1-18, June.
    12. Li, Jing & Alvi, Jahan Zeb & Pei, Gang & Su, Yuehong & Li, Pengcheng & Gao, Guangtao & Ji, Jie, 2016. "Modelling of organic Rankine cycle efficiency with respect to the equivalent hot side temperature," Energy, Elsevier, vol. 115(P1), pages 668-683.
    13. Gómez Aláez, S.L. & Bombarda, P. & Invernizzi, C.M. & Iora, P. & Silva, P., 2015. "Evaluation of ORC modules performance adopting commercial plastic heat exchangers," Applied Energy, Elsevier, vol. 154(C), pages 882-890.
    14. Zhang, Xinxin & Li, Yang, 2023. "An examination of super dry working fluids used in regenerative organic Rankine cycles," Energy, Elsevier, vol. 263(PD).
    15. Ibarra, Mercedes & Rovira, Antonio & Alarcón-Padilla, Diego-César & Blanco, Julián, 2014. "Performance of a 5kWe Organic Rankine Cycle at part-load operation," Applied Energy, Elsevier, vol. 120(C), pages 147-158.
    16. Wang, Xiao-Qiong & Li, Xiao-Ping & Li, You-Rong & Wu, Chun-Mei, 2015. "Payback period estimation and parameter optimization of subcritical organic Rankine cycle system for waste heat recovery," Energy, Elsevier, vol. 88(C), pages 734-745.
    17. Moloney, Francesca & Almatrafi, Eydhah & Goswami, D.Y., 2020. "Working fluid parametric analysis for recuperative supercritical organic Rankine cycles for medium geothermal reservoir temperatures," Renewable Energy, Elsevier, vol. 147(P3), pages 2874-2881.
    18. Song, Chongzhi & Gu, Mingyan & Miao, Zheng & Liu, Chao & Xu, Jinliang, 2019. "Effect of fluid dryness and critical temperature on trans-critical organic Rankine cycle," Energy, Elsevier, vol. 174(C), pages 97-109.
    19. Toffolo, Andrea & Lazzaretto, Andrea & Manente, Giovanni & Paci, Marco, 2014. "A multi-criteria approach for the optimal selection of working fluid and design parameters in Organic Rankine Cycle systems," Applied Energy, Elsevier, vol. 121(C), pages 219-232.
    20. Chatzopoulou, Maria Anna & Lecompte, Steven & Paepe, Michel De & Markides, Christos N., 2019. "Off-design optimisation of organic Rankine cycle (ORC) engines with different heat exchangers and volumetric expanders in waste heat recovery applications," Applied Energy, Elsevier, vol. 253(C), pages 1-1.

    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:gam:jeners:v:10:y:2017:i:8:p:1185-:d:107909. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.