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New concept of spray saturation tower for micro Humid Air Turbine applications

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  • De Paepe, W.
  • Contino, F.
  • Delattin, F.
  • Bram, S.
  • De Ruyck, J.

Abstract

The micro Humid Air Turbine (mHAT) has proven to have the highest potential of all mixed air/water micro Gas Turbines (mGTs). Turning a mGT into a mHAT however requires the installation of a saturation tower. Most common saturation towers use packing material to increase the contact area between compressed air and water. The packing material however causes a pressure drop, which has a severe negative effect on the mGT performance. To limit this pressure drop, we have developed a spray tower without packing that uses nozzles to inject water in the compressed air. In this paper, we propose a design for the spray tower based on 2-phase flow simulations. The two major constraints during the design were minimal pressure loss and tower size. A sensitivity analysis was performed in order to indicate the key parameters to obtain fully saturated air from the tower. Results of simulations showed that using a spray tower reduces the pressure losses when compared to a classic saturation tower. Sensitivity analysis showed that droplet diameter and injected water mass flow rate have the largest effect on the final size of the spray tower. Finally, a cross-current spray tower design was proposed for a Turbec T100mGT because the sensitivity analysis showed that cross-current droplets injection meets the design constraints best.

Suggested Citation

  • De Paepe, W. & Contino, F. & Delattin, F. & Bram, S. & De Ruyck, J., 2014. "New concept of spray saturation tower for micro Humid Air Turbine applications," Applied Energy, Elsevier, vol. 130(C), pages 723-737.
    • Handle: RePEc:eee:appene:v:130:y:2014:i:c:p:723-737
    DOI: 10.1016/j.apenergy.2014.03.055
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    References listed on IDEAS

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    1. De Paepe, Ward & Delattin, Frank & Bram, Svend & De Ruyck, Jacques, 2012. "Steam injection experiments in a microturbine – A thermodynamic performance analysis," Applied Energy, Elsevier, vol. 97(C), pages 569-576.
    2. De Paepe, Ward & Delattin, Frank & Bram, Svend & De Ruyck, Jacques, 2013. "Water injection in a micro gas turbine – Assessment of the performance using a black box method," Applied Energy, Elsevier, vol. 112(C), pages 1291-1302.
    3. Niksiar, Arezou & Rahimi, Amir, 2009. "Energy and exergy analysis for cocurrent gas spray cooling systems based on the results of mathematical modeling and simulation," Energy, Elsevier, vol. 34(1), pages 14-21.
    4. Jonsson, Maria & Yan, Jinyue, 2005. "Humidified gas turbines—a review of proposed and implemented cycles," Energy, Elsevier, vol. 30(7), pages 1013-1078.
    5. Traverso, A., 2010. "Humidification tower for humid air gas turbine cycles: Experimental analysis," Energy, Elsevier, vol. 35(2), pages 894-901.
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    2. Zhu, Guangya & Chow, T.T. & Fong, K.F. & Lee, C.K., 2019. "Comparative study on humidified gas turbine cycles with different air saturator designs," Applied Energy, Elsevier, vol. 254(C).
    3. Zhang, Qing & Wang, Yuzhang & Jiang, Jiangjun & Weng, Shilie & Cao, Xiuling, 2022. "Coupling effect of key parameters of heat recovery components on the HAT cycle performance," Energy, Elsevier, vol. 238(PC).
    4. Montero Carrero, Marina & De Paepe, Ward & Bram, Svend & Parente, Alessandro & Contino, Francesco, 2017. "Does humidification improve the micro Gas Turbine cycle? Thermodynamic assessment based on Sankey and Grassmann diagrams," Applied Energy, Elsevier, vol. 204(C), pages 1163-1171.
    5. De Paepe, Ward & Montero Carrero, Marina & Bram, Svend & Contino, Francesco & Parente, Alessandro, 2017. "Waste heat recovery optimization in micro gas turbine applications using advanced humidified gas turbine cycle concepts," Applied Energy, Elsevier, vol. 207(C), pages 218-229.
    6. Cui, Haijiao & Li, Nianping & Peng, Jinqing & Yin, Rongxin & Li, Jingming & Wu, Zhibin, 2018. "Investigation on the thermal performance of a novel spray tower with upward spraying and downward gas flow," Applied Energy, Elsevier, vol. 231(C), pages 12-21.
    7. Zhang, Qing & He, Ming & Wang, Yuzhang & Weng, Shilie, 2020. "Experimental analysis of the air humidification process for humid air turbine cycle using a two-phase measurement system," Applied Energy, Elsevier, vol. 279(C).
    8. Wang, Maojian & Liu, Guilian & Hui, Chi Wai, 2016. "Simultaneous optimization and integration of gas turbine and air separation unit in IGCC plant," Energy, Elsevier, vol. 116(P2), pages 1294-1301.
    9. Renzi, Massimiliano & Patuzzi, Francesco & Baratieri, Marco, 2017. "Syngas feed of micro gas turbines with steam injection: Effects on performance, combustion and pollutants formation," Applied Energy, Elsevier, vol. 206(C), pages 697-707.
    10. Sun, Yubiao & Guan, Zhiqiang & Gurgenci, Hal & Wang, Jianyong & Dong, Peixin & Hooman, Kamel, 2019. "Spray cooling system design and optimization for cooling performance enhancement of natural draft dry cooling tower in concentrated solar power plants," Energy, Elsevier, vol. 168(C), pages 273-284.
    11. Montero Carrero, Marina & De Paepe, Ward & Bram, Svend & Musin, Frédéric & Parente, Alessandro & Contino, Francesco, 2016. "Humidified micro gas turbines for domestic users: An economic and primary energy savings analysis," Energy, Elsevier, vol. 117(P2), pages 429-438.
    12. Xu, Zhen & Lu, Yuan & Wang, Bo & Zhao, Lifeng & Xiao, Yunhan, 2021. "Experimental study on the off-design performances of a micro humid air turbine cycle: Thermodynamics, emissions and heat exchange," Energy, Elsevier, vol. 219(C).

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