IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v119y2017icp211-217.html
   My bibliography  Save this article

New knowledge on the temperature-entropy saturation boundary slope of working fluids

Author

Listed:
  • Su, Wen
  • Zhao, Li
  • Deng, Shuai

Abstract

The slope of temperature-entropy saturation boundary of working fluids has a significant effect on the thermodynamic performance of cycle processes. However, for the working fluids used in cycles, few studies have been conducted to analyze the saturated slope from the molecular structure and mixture composition. Thus, in this contribution, an analytical expression on the slope of saturated curve is obtained based on the highly accurate Helmholtz energy equation. 14 pure working fluids and three typical binary mixtures are employed to analyze the influence of molecular groups and mixture compositions on the saturated slope, according to the correlated parameters of Helmholtz energy equation. Based on the calculated results, a preliminary trend is demonstrated that with an increase of the number of molecular groups, the positive liquid slope of pure fluids increases and the vapor slope appears positive sign in a narrow temperature range. Particularly, for the binary mixtures, the liquid slope is generally located between the corresponding pure fluids', while the vapor slope can be infinity by mixing dry and wet fluids ingeniously. It can be proved through the analysis of mixtures' saturated slope that three types of vapor slope could be obtained by regulating the mixture composition.

Suggested Citation

  • Su, Wen & Zhao, Li & Deng, Shuai, 2017. "New knowledge on the temperature-entropy saturation boundary slope of working fluids," Energy, Elsevier, vol. 119(C), pages 211-217.
  • Handle: RePEc:eee:energy:v:119:y:2017:i:c:p:211-217
    DOI: 10.1016/j.energy.2016.12.082
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544216318886
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2016.12.082?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. Garrido, José Matías & Quinteros-Lama, Héctor & Mejía, Andrés & Wisniak, Jaime & Segura, Hugo, 2012. "A rigorous approach for predicting the slope and curvature of the temperature–entropy saturation boundary of pure fluids," Energy, Elsevier, vol. 45(1), pages 888-899.
    2. Hung, T.C. & Wang, S.K. & Kuo, C.H. & Pei, B.S. & Tsai, K.F., 2010. "A study of organic working fluids on system efficiency of an ORC using low-grade energy sources," Energy, Elsevier, vol. 35(3), pages 1403-1411.
    3. 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.
    4. Wang, E.H. & Zhang, H.G. & Fan, B.Y. & Ouyang, M.G. & Zhao, Y. & Mu, Q.H., 2011. "Study of working fluid selection of organic Rankine cycle (ORC) for engine waste heat recovery," Energy, Elsevier, vol. 36(5), pages 3406-3418.
    5. 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.
    6. 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.
    7. Zeyghami, Mehdi, 2015. "Performance analysis and binary working fluid selection of combined flash-binary geothermal cycle," Energy, Elsevier, vol. 88(C), pages 765-774.
    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. Su, Wen & Zhao, Li & Deng, Shuai & Xu, Weicong & Yu, Zhixin, 2018. "A limiting efficiency of subcritical Organic Rankine cycle under the constraint of working fluids," Energy, Elsevier, vol. 143(C), pages 458-466.
    2. Miao, Zheng & Zhang, Kai & Wang, Mengxiao & Xu, Jinliang, 2019. "Thermodynamic selection criteria of zeotropic mixtures for subcritical organic Rankine cycle," Energy, Elsevier, vol. 167(C), pages 484-497.
    3. Su, Wen & Zhao, Li & Deng, Shuai & Zhao, Yanjie, 2017. "How to predict the vapor slope of temperature-entropy saturation boundary of working fluids from molecular groups?," Energy, Elsevier, vol. 135(C), pages 14-22.

    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. 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.
    3. Su, Wen & Zhao, Li & Deng, Shuai & Zhao, Yanjie, 2017. "How to predict the vapor slope of temperature-entropy saturation boundary of working fluids from molecular groups?," Energy, Elsevier, vol. 135(C), pages 14-22.
    4. 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.
    5. 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.
    6. 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.
    7. Emily Spayde & Pedro J. Mago & Heejin Cho, 2017. "Performance Evaluation of a Solar-Powered Regenerative Organic Rankine Cycle in Different Climate Conditions," Energies, MDPI, vol. 10(1), pages 1-20, January.
    8. 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).
    9. Yu, Haoshui & Feng, Xiao & Wang, Yufei & Biegler, Lorenz T. & Eason, John, 2016. "A systematic method to customize an efficient organic Rankine cycle (ORC) to recover waste heat in refineries," Applied Energy, Elsevier, vol. 179(C), pages 302-315.
    10. Glover, Stephen & Douglas, Roy & De Rosa, Mattia & Zhang, Xiaolei & Glover, Laura, 2015. "Simulation of a multiple heat source supercritical ORC (Organic Rankine Cycle) for vehicle waste heat recovery," Energy, Elsevier, vol. 93(P2), pages 1568-1580.
    11. Li, You-Rong & Du, Mei-Tang & Wu, Chun-Mei & Wu, Shuang-Ying & Liu, Chao, 2014. "Potential of organic Rankine cycle using zeotropic mixtures as working fluids for waste heat recovery," Energy, Elsevier, vol. 77(C), pages 509-519.
    12. 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.
    13. Kim, Kyeongsu & Lee, Ung & Kim, Changsoo & Han, Chonghun, 2015. "Design and optimization of cascade organic Rankine cycle for recovering cryogenic energy from liquefied natural gas using binary working fluid," Energy, Elsevier, vol. 88(C), pages 304-313.
    14. 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.
    15. He, Chao & Liu, Chao & Zhou, Mengtong & Xie, Hui & Xu, Xiaoxiao & Wu, Shuangying & Li, Yourong, 2014. "A new selection principle of working fluids for subcritical organic Rankine cycle coupling with different heat sources," Energy, Elsevier, vol. 68(C), pages 283-291.
    16. 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.
    17. Subiantoro, Alison & Ooi, Kim Tiow, 2014. "Comparison and performance analysis of the novel revolving vane expander design variants in low and medium pressure applications," Energy, Elsevier, vol. 78(C), pages 747-757.
    18. 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.
    19. Fu, Jianqin & Liu, Jingping & Ren, Chengqin & Wang, Linjun & Deng, Banglin & Xu, Zhengxin, 2012. "An open steam power cycle used for IC engine exhaust gas energy recovery," Energy, Elsevier, vol. 44(1), pages 544-554.
    20. Domingues, António & Santos, Helder & Costa, Mário, 2013. "Analysis of vehicle exhaust waste heat recovery potential using a Rankine cycle," Energy, Elsevier, vol. 49(C), pages 71-85.

    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:119:y:2017:i:c:p:211-217. 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.