IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v154y2018icp269-276.html
   My bibliography  Save this article

Characterizing wet and dry fluids in temperature-entropy diagrams

Author

Listed:
  • White, J.A.
  • Velasco, S.

Abstract

In this work we show that the shape of the liquid-vapor saturation curve in a Tr−s∗ diagram (Tr = T/Tc and s∗ = s/R, with Tc the critical temperature, s the molar entropy and R the gas constant) for a given fluid is mainly governed by the acentric factor, ω, and the critical molar volume, vc, of the fluid. The study uses as reference the point M where the saturated vapor curve in the Tr−s∗ diagram changes its concavity, i.e. (d2s*g/dTr2)M=0. By analyzing the data provided by the National Standards and Technology (NIST) program RefProp 9.1 for 121 fluids, we find that, at this point, TMr≈0.81 and the slope ξM*=(ds*g/dTr)M is well correlated with vc, existing a threshold value vc,0≈0.22 m3 kmol−1 so that ξM*<0 (wet fluid) for vc < vc,0 and ξM*>0 (dry fluid) for vc > vc,0. This direct relation between vc and the wet or dry character of a fluid is the main result of the present work. Furthermore, the dimensionless vaporization entropy at the reference point M, ΔvsM*=sM*g−sM*l, increases in a nearly linear way with ω.

Suggested Citation

  • White, J.A. & Velasco, S., 2018. "Characterizing wet and dry fluids in temperature-entropy diagrams," Energy, Elsevier, vol. 154(C), pages 269-276.
    • Handle: RePEc:eee:energy:v:154:y:2018:i:c:p:269-276
    DOI: 10.1016/j.energy.2018.04.105
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544218307187
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2018.04.105?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. Bao, Junjiang & Zhao, Li, 2013. "A review of working fluid and expander selections for organic Rankine cycle," Renewable and Sustainable Energy Reviews, Elsevier, vol. 24(C), pages 325-342.
    2. Rayegan, R. & Tao, Y.X., 2011. "A procedure to select working fluids for Solar Organic Rankine Cycles (ORCs)," Renewable Energy, Elsevier, vol. 36(2), pages 659-670.
    3. Liu, Bo-Tau & Chien, Kuo-Hsiang & Wang, Chi-Chuan, 2004. "Effect of working fluids on organic Rankine cycle for waste heat recovery," Energy, Elsevier, vol. 29(8), pages 1207-1217.
    4. Hærvig, J. & Sørensen, K. & Condra, T.J., 2016. "Guidelines for optimal selection of working fluid for an organic Rankine cycle in relation to waste heat recovery," Energy, Elsevier, vol. 96(C), pages 592-602.
    5. 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.
    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. Attila R. Imre & Réka Kustán & Axel Groniewsky, 2019. "Thermodynamic Selection of the Optimal Working Fluid for Organic Rankine Cycles," Energies, MDPI, vol. 12(10), pages 1-15, May.
    2. Zhang, Yi-Fan & Li, Ming-Jia & Ren, Xiao & Duan, Xin-Yue & Wu, Chia-Jung & Xi, Huan & Feng, Yong-Qiang & Gong, Liang & Hung, Tzu-Chen, 2022. "Effect of heat source supplies on system behaviors of ORCs with different capacities: An experimental comparison between the 3 kW and 10 kW unit," Energy, Elsevier, vol. 254(PB).
    3. Juan A. White & Santiago Velasco, 2019. "Approximating the Temperature–Entropy Saturation Curve of ORC Working Fluids From the Ideal Gas Isobaric Heat Capacity," Energies, MDPI, vol. 12(17), pages 1-14, August.
    4. Attila R. Imre & Réka Kustán & Axel Groniewsky, 2020. "Mapping of the Temperature–Entropy Diagrams of van der Waals Fluids," Energies, MDPI, vol. 13(6), pages 1-15, March.
    5. Tsai, Yu-Chun & Feng, Yong-Qiang & Shuai, Yong & Lai, Jhao-Hong & Leung, Michael K.H. & Wei, Yen & Hsu, Hua-Yi & Hung, Tzu-Chen, 2023. "Experimental validation of a 0.3 kW ORC for the future purposes in the study of low-grade thermal to power conversion," Energy, Elsevier, vol. 285(C).
    6. Gábor Györke & Axel Groniewsky & Attila R. Imre, 2019. "A Simple Method of Finding New Dry and Isentropic Working Fluids for Organic Rankine Cycle," Energies, MDPI, vol. 12(3), pages 1-11, February.

    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. Lee, Ung & Jeon, Jeongwoo & Han, Chonghun & Lim, Youngsub, 2017. "Superstructure based techno-economic optimization of the organic rankine cycle using LNG cryogenic energy," Energy, Elsevier, vol. 137(C), pages 83-94.
    2. 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).
    3. Xu, Weicong & Zhao, Li & Mao, Samuel S. & Deng, Shuai, 2020. "Towards novel low temperature thermodynamic cycle: A critical review originated from organic Rankine cycle," Applied Energy, Elsevier, vol. 270(C).
    4. Xu, Jinliang & Yu, Chao, 2014. "Critical temperature criterion for selection of working fluids for subcritical pressure Organic Rankine cycles," Energy, Elsevier, vol. 74(C), pages 719-733.
    5. Feng, Yongqiang & Zhang, Yaning & Li, Bingxi & Yang, Jinfu & Shi, Yang, 2015. "Sensitivity analysis and thermoeconomic comparison of ORCs (organic Rankine cycles) for low temperature waste heat recovery," Energy, Elsevier, vol. 82(C), pages 664-677.
    6. Yu, Haoshui & Feng, Xiao & Wang, Yufei, 2015. "A new pinch based method for simultaneous selection of working fluid and operating conditions in an ORC (Organic Rankine Cycle) recovering waste heat," Energy, Elsevier, vol. 90(P1), pages 36-46.
    7. Wang, Mingtao & Zhang, Juan & Liu, Qiyi & Tan, Luzhi, 2020. "Effects of critical temperature, critical pressure and dryness of working fluids on the performance of the transcritical organic rankine cycle," Energy, Elsevier, vol. 202(C).
    8. Vélez, Fredy & Segovia, José J. & Martín, M. Carmen & Antolín, Gregorio & Chejne, Farid & Quijano, Ana, 2012. "A technical, economical and market review of organic Rankine cycles for the conversion of low-grade heat for power generation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(6), pages 4175-4189.
    9. 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.
    10. Nian, Yong-Le & Cheng, Wen-Long, 2018. "Insights into geothermal utilization of abandoned oil and gas wells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 87(C), pages 44-60.
    11. Gábor Györke & Axel Groniewsky & Attila R. Imre, 2019. "A Simple Method of Finding New Dry and Isentropic Working Fluids for Organic Rankine Cycle," Energies, MDPI, vol. 12(3), pages 1-11, February.
    12. Baccioli, A. & Antonelli, M. & Desideri, U., 2017. "Technical and economic analysis of organic flash regenerative cycles (OFRCs) for low temperature waste heat recovery," Applied Energy, Elsevier, vol. 199(C), pages 69-87.
    13. Imran, Muhammad & Haglind, Fredrik & Asim, Muhammad & Zeb Alvi, Jahan, 2018. "Recent research trends in organic Rankine cycle technology: A bibliometric approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 552-562.
    14. 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.
    15. Tang, Hao & Wu, Huagen & Wang, Xiaolin & Xing, Ziwen, 2015. "Performance study of a twin-screw expander used in a geothermal organic Rankine cycle power generator," Energy, Elsevier, vol. 90(P1), pages 631-642.
    16. Braimakis, Konstantinos & Karellas, Sotirios, 2017. "Integrated thermoeconomic optimization of standard and regenerative ORC for different heat source types and capacities," Energy, Elsevier, vol. 121(C), pages 570-598.
    17. Juan A. White & Santiago Velasco, 2019. "Approximating the Temperature–Entropy Saturation Curve of ORC Working Fluids From the Ideal Gas Isobaric Heat Capacity," Energies, MDPI, vol. 12(17), pages 1-14, August.
    18. 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.
    19. Kajurek, Jakub & Rusowicz, Artur & Grzebielec, Andrzej & Bujalski, Wojciech & Futyma, Kamil & Rudowicz, Zbigniew, 2019. "Selection of refrigerants for a modified organic Rankine cycle," Energy, Elsevier, vol. 168(C), pages 1-8.
    20. Majumdar, Rudrodip & Singh, Suneet & Saha, Sandip K., 2018. "Quasi-steady state moving boundary reduced order model of two-phase flow for ORC refrigerant in solar-thermal heat exchanger," Renewable Energy, Elsevier, vol. 126(C), pages 830-843.

    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:154:y:2018:i:c:p:269-276. 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.