IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v205y2020ics0360544220311130.html
   My bibliography  Save this article

An investigation of ultrasonic based hydrogen production

Author

Listed:
  • Rashwan, Sherif S.
  • Dincer, Ibrahim
  • Mohany, Atef

Abstract

A comprehensive numerical study is performed to establish a link between the primary effect of the acoustic cavitation bubble activity and the consequent effect of the chemical kinetics mechanism associated with the sonochemical process. In this work, we studied a possible reaction kinetics mechanism for the sonochemical hydrogen production, which we called the sonohydrogen process. The reaction kinetics mechanism consists of 19 reversible reactions taking place inside the acoustic cavitation micro-bubble at different conditions. The simulation of the reaction kinetics is validated and utilized to quantify the amount of hydrogen produced by a single bubble that is initially saturated with water vapor/oxygen. The results from the bubble dynamics model and the chemical kinetics model are compared with two different experiments available in the literature. Furthermore, the work evaluated the energy efficiency of this technology to produce 1 μmol of hydrogen in kWh. The present results revealed that the bubble temperature governs the chemical reaction mechanism of the water vapor dissociation. The minimum bubble temperature required for a slight production of hydrogen is 3000 K, the hydrogen is in the range of 5.46E-06 – 8.59E-06 μmol/h. At the following conditions of an ultrasonic frequency of 20 kHz, an acoustic power of 30 W, and a bubble temperature of 6000 K, the amount of hydrogen produced is 1.05E-03 μmol/h. The higher the bubble temperature, the faster the chemical reaction rate, which will lead to a higher hydrogen production rate. In terms of performance, the sonohydrogen process produces 2.22E-02 μmol/kWh.

Suggested Citation

  • Rashwan, Sherif S. & Dincer, Ibrahim & Mohany, Atef, 2020. "An investigation of ultrasonic based hydrogen production," Energy, Elsevier, vol. 205(C).
    • Handle: RePEc:eee:energy:v:205:y:2020:i:c:s0360544220311130
    DOI: 10.1016/j.energy.2020.118006
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220311130
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.118006?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. Momirlan, Magdalena & Boriaru, N., 2000. "Pressure and temperature effects on water dissociation reaction for hydrogen production over zeolites," Renewable Energy, Elsevier, vol. 19(1), pages 243-248.
    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. Burton, N.A. & Padilla, R.V. & Rose, A. & Habibullah, H., 2021. "Increasing the efficiency of hydrogen production from solar powered water electrolysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 135(C).

    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.

      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:205:y:2020:i:c:s0360544220311130. 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.