IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v123y2018icp578-589.html
   My bibliography  Save this article

Study of mixing systems and geometric configurations for anaerobic digesters using CFD analysis

Author

Listed:
  • Leonzio, Grazia

Abstract

Anaerobic digester is the most widespread technology for the treatment of biomass to produce biogas. Mixing is an important parameter to have a highly efficient anaerobic digestion. Computational fluid dynamics can provide detailed modeling about the hydrodynamics and mixing of an anaerobic digestion. In this research, a computational fluid dynamics analysis is developed to establish the better geometric configuration and mixing system for an anaerobic digester producing biogas. Three different scenarios as continuous stirred tank reactors are considered. External pumps for liquor recirculation are used as mixing system. Flow patterns, media, variance, standard deviation of average velocity and velocity gradient are used as parameters to evaluate mixing. Simulation results suggest that the innovative configuration in which the fluid enters tangent to the lateral surface of the anaerobic digester is the best solution. Media, variance, standard deviation of average velocity and velocity gradient are equal to 0.01522 m/s, 0.00006 m/s, 0.00758 m/s, 75 s−1 respectively. These ensure to have dead zones equal to the 0.2% of total volume. Shear rate at the bottom is 1.1∙10−3 s−1 in all plane while the power of recirculating pump is 1.9 kw/m3. Computational fluid dynamics is then a promising technology for analyzing mixing.

Suggested Citation

  • Leonzio, Grazia, 2018. "Study of mixing systems and geometric configurations for anaerobic digesters using CFD analysis," Renewable Energy, Elsevier, vol. 123(C), pages 578-589.
    • Handle: RePEc:eee:renene:v:123:y:2018:i:c:p:578-589
    DOI: 10.1016/j.renene.2018.02.071
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148118302155
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2018.02.071?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. Kowalczyk, Alexandra & Harnisch, Eva & Schwede, Sebastian & Gerber, Mandy & Span, Roland, 2013. "Different mixing modes for biogas plants using energy crops," Applied Energy, Elsevier, vol. 112(C), pages 465-472.
    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. Zamani Abyaneh, Ehsan & Zarghami, Reza & Krühne, Ulrich & Rosinha Grundtvig, Inês P. & Ramin, Pedram & Mostoufi, Navid, 2022. "Mixing assessment of an industrial anaerobic digestion reactor using CFD," Renewable Energy, Elsevier, vol. 192(C), pages 537-549.
    2. El Ibrahimi, Mohammed & Khay, Ismail & El Maakoul, Anas & Bakhouya, Mohamed, 2021. "Energy performance of an unmixed anaerobic digester with submerged solid waste: Effects of temperature distribution," Energy, Elsevier, vol. 231(C).
    3. Leonzio, Grazia, 2019. "Fluid dynamic study of anaerobic digester: optimization of mixing and geometric configuration by using response surface methodology and factorial design," Renewable Energy, Elsevier, vol. 136(C), pages 769-780.
    4. Zarei, Sasan & Mousavi, Seyyed Mohammad & Amani, Teimour & Khamforoush, Mehrdad & Jafari, Arezou, 2021. "Three-dimensional CFD simulation of anaerobic reactions in a continuous packed-bed bioreactor," Renewable Energy, Elsevier, vol. 169(C), pages 461-472.
    5. Buta Singh & Narinder Singh & Zsolt Čonka & Michal Kolcun & Zoltán Siménfalvi & Zsolt Péter & Zoltán Szamosi, 2021. "Critical Analysis of Methods Adopted for Evaluation of Mixing Efficiency in an Anaerobic Digester," Sustainability, MDPI, vol. 13(12), pages 1-27, June.

    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. Trad, Zaineb & Fontaine, Jean-Pierre & Larroche, Christian & Vial, Christophe, 2016. "Multiscale mixing analysis and modeling of biohydrogen production by dark fermentation," Renewable Energy, Elsevier, vol. 98(C), pages 264-282.
    2. Martí-Herrero, J. & Soria-Castellón, G. & Diaz-de-Basurto, A. & Alvarez, R. & Chemisana, D., 2019. "Biogas from a full scale digester operated in psychrophilic conditions and fed only with fruit and vegetable waste," Renewable Energy, Elsevier, vol. 133(C), pages 676-684.
    3. Lindmark, Johan & Thorin, Eva & Bel Fdhila, Rebei & Dahlquist, Erik, 2014. "Effects of mixing on the result of anaerobic digestion: Review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 40(C), pages 1030-1047.
    4. Buta Singh & Narinder Singh & Zsolt Čonka & Michal Kolcun & Zoltán Siménfalvi & Zsolt Péter & Zoltán Szamosi, 2021. "Critical Analysis of Methods Adopted for Evaluation of Mixing Efficiency in an Anaerobic Digester," Sustainability, MDPI, vol. 13(12), pages 1-27, June.
    5. Du, Jiliang & Chen, Le & Li, Jianan & Zuo, Ranan & Yang, Xiushan & Chen, Hongzhang & Zhuang, Xinshu & Tian, Shen, 2018. "High-solids ethanol fermentation with single-stage methane anaerobic digestion for maximizing bioenergy conversion from a C4 grass (Pennisetum purpereum)," Applied Energy, Elsevier, vol. 215(C), pages 437-443.
    6. Oluwafunmilayo Abiola Aworanti & Oluseye Omotoso Agbede & Samuel Enahoro Agarry & Ayobami Olu Ajani & Oyetola Ogunkunle & Opeyeolu Timothy Laseinde & S. M. Ashrafur Rahman & Islam Md Rizwanul Fattah, 2023. "Decoding Anaerobic Digestion: A Holistic Analysis of Biomass Waste Technology, Process Kinetics, and Operational Variables," Energies, MDPI, vol. 16(8), pages 1-36, April.
    7. Schneider, Nico & Gerber, Mandy, 2020. "Rheological properties of digestate from agricultural biogas plants: An overview of measurement techniques and influencing factors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 121(C).
    8. Chen, Yuling & Rößler, Benjamin & Zielonka, Simon & Lemmer, Andreas & Wonneberger, Anna-Maria & Jungbluth, Thomas, 2014. "The pressure effects on two-phase anaerobic digestion," Applied Energy, Elsevier, vol. 116(C), pages 409-415.
    9. Kuczman, Osvaldo & Tavares, Maria Hermínia Ferreira & Gomes, Simone Damasceno & Guedes, Luciana Pagliosa Carvalho & Grisotti, Geovane, 2017. "Effects of stirring on cassava effluent treatment in an anaerobic horizontal tubular pilot reactor with support medium – A Review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 984-989.
    10. Zhang, Jingxin & Mao, Liwei & Nithya, Karthikeyan & Loh, Kai-Chee & Dai, Yanjun & He, Yiliang & Wah Tong, Yen, 2019. "Optimizing mixing strategy to improve the performance of an anaerobic digestion waste-to-energy system for energy recovery from food waste," Applied Energy, Elsevier, vol. 249(C), pages 28-36.
    11. Mahmoodi-Eshkaftaki, Mahmood & Ebrahimi, Rahim, 2019. "The effect of blade angle of turbine impellers on anaerobic digestion efficiency in stirred digesters," Energy, Elsevier, vol. 178(C), pages 772-780.
    12. Vojtěch Zejda & Vítězslav Máša & Šárka Václavková & Pavel Skryja, 2020. "A Novel Check-List Strategy to Evaluate the Potential of Operational Improvements in Wastewater Treatment Plants," Energies, MDPI, vol. 13(19), pages 1-21, September.
    13. Singh, Buta & Szamosi, Zoltán & Siménfalvi, Zoltán, 2019. "State of the art on mixing in an anaerobic digester: A review," Renewable Energy, Elsevier, vol. 141(C), pages 922-936.
    14. Guan, Tingting & Alvfors, Per & Lindbergh, Göran, 2014. "Investigation of the prospect of energy self-sufficiency and technical performance of an integrated PEMFC (proton exchange membrane fuel cell), dairy farm and biogas plant system," Applied Energy, Elsevier, vol. 130(C), pages 685-691.

    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:renene:v:123:y:2018:i:c:p:578-589. 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/renewable-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.