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A novel hybrid oxy-fuel power cycle utilizing solar thermal energy

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  • Gou, Chenhua
  • Cai, Ruixian
  • Hong, Hui

Abstract

An advanced oxy-fuel hybrid power system (AHPS) is proposed in this paper. Solar thermal energy is used in the AHPS to produce saturated steam as the working fluid, and natural gas is internally combusted with pure oxygen. It is in configuration close to the zero emission Graz cycle. The thermodynamic characteristics at design conditions of the AHPS are analyzed using the advanced process simulator Aspen Plus. The corresponding exergy loss analyses are also carried out to gain understanding of the loss distribution. The results are given in detail. The solar thermal hybrid H2O turbine power generation system (STHS) is evaluated in this study as the reference. The comparison results demonstrate that the proposed cycle has notable advantages in thermodynamic performances. For example, the net fuel-to-electricity efficiency of the AHPS is 95.90%, which is 21.61 percentage points higher than that of the STHS. The exergy efficiency (based on the exergy input of fuel and solar thermal energy without radiation) of the AHPS is 55.88%, which is 2.13 percentage points higher than that of the STHS.

Suggested Citation

  • Gou, Chenhua & Cai, Ruixian & Hong, Hui, 2007. "A novel hybrid oxy-fuel power cycle utilizing solar thermal energy," Energy, Elsevier, vol. 32(9), pages 1707-1714.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:9:p:1707-1714
    DOI: 10.1016/j.energy.2006.12.001
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    References listed on IDEAS

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    1. Pak, Pyong Sik & Suzuki, Yutaka & Kosugi, Takanobu, 1997. "A CO2-capturing hybrid power-generation system with highly efficient use of solar thermal energy," Energy, Elsevier, vol. 22(2), pages 295-299.
    2. Kosugi, Takanobu & Pak, Pyong Sik, 2003. "Economic evaluation of solar thermal hybrid H2O turbine power generation systems," Energy, Elsevier, vol. 28(3), pages 185-198.
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    Cited by:

    1. Gunasekaran, S. & Mancini, N.D. & El-Khaja, R. & Sheu, E.J. & Mitsos, A., 2014. "Solar–thermal hybridization of advanced zero emissions power cycle," Energy, Elsevier, vol. 65(C), pages 152-165.
    2. Yue, Ting & Lior, Noam, 2018. "Thermal hybrid power systems using multiple heat sources of different temperature: Thermodynamic analysis for Brayton cycles," Energy, Elsevier, vol. 165(PA), pages 639-665.
    3. Nathan, G.J. & Battye, D.L. & Ashman, P.J., 2014. "Economic evaluation of a novel fuel-saver hybrid combining a solar receiver with a combustor for a solar power tower," Applied Energy, Elsevier, vol. 113(C), pages 1235-1243.
    4. Zhang, Guoqiang & Zheng, Jiongzhi & Yang, Yongping & Liu, Wenyi, 2016. "A novel LNG cryogenic energy utilization method for inlet air cooling to improve the performance of combined cycle," Applied Energy, Elsevier, vol. 179(C), pages 638-649.
    5. Silakhori, Mahyar & Jafarian, Mehdi & Arjomandi, Maziar & Nathan, Graham J., 2019. "The energetic performance of a liquid chemical looping cycle with solar thermal energy storage," Energy, Elsevier, vol. 170(C), pages 93-101.
    6. Zhao, Hongbin & Yue, Pengxiu, 2011. "Performance analysis of humid air turbine cycle with solar energy for methanol decomposition," Energy, Elsevier, vol. 36(5), pages 2372-2380.
    7. Jafarian, Mehdi & Arjomandi, Maziar & Nathan, Graham J., 2014. "The energetic performance of a novel hybrid solar thermal & chemical looping combustion plant," Applied Energy, Elsevier, vol. 132(C), pages 74-85.
    8. Jamel, M.S. & Abd Rahman, A. & Shamsuddin, A.H., 2013. "Advances in the integration of solar thermal energy with conventional and non-conventional power plants," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 71-81.
    9. Selwynraj, A. Immanuel & Iniyan, S. & Polonsky, Guy & Suganthi, L. & Kribus, Abraham, 2015. "Exergy analysis and annual exergetic performance evaluation of solar hybrid STIG (steam injected gas turbine) cycle for Indian conditions," Energy, Elsevier, vol. 80(C), pages 414-427.
    10. Agudelo, Andrés & Valero, Antonio & Usón, Sergio, 2013. "The fossil trace of CO2 emissions in multi-fuel energy systems," Energy, Elsevier, vol. 58(C), pages 236-246.
    11. Gunasekaran, S. & Mancini, N.D. & Mitsos, A., 2014. "Optimal design and operation of membrane-based oxy-combustion power plants," Energy, Elsevier, vol. 70(C), pages 338-354.
    12. Lolos, P.A. & Rogdakis, E.D., 2009. "A Kalina power cycle driven by renewable energy sources," Energy, Elsevier, vol. 34(4), pages 457-464.
    13. Coskun, C. & Oktay, Z. & Dincer, I., 2011. "Estimation of monthly solar radiation distribution for solar energy system analysis," Energy, Elsevier, vol. 36(2), pages 1319-1323.

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