IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v32y2007i9p1603-1616.html
   My bibliography  Save this article

Second law analysis of a magnetohydrodynamic plasma generator

Author

Listed:
  • Saidi, M.H.
  • Montazeri, A.

Abstract

The performance of an MHD generator utilizing plasma as working fluid has been assessed from the viewpoint of the second law of thermodynamics. The plasma flow in the generator linear duct has been solved by dividing the channel cross-section to an inviscid core region and the viscous boundary layers in the vicinity of the walls. The Hall effect has been taken into account and equilibrium ionization has been assumed. The dependence of the plasma properties such as Hall parameter, the coefficients of thermal and electrical conductivity, and viscosity on the plasma state has also been considered. Using the information obtained on the plasma behaviour in the generator, the entropy generation minimization approach is applied to improve the conversion efficiency. In addition to seeking the optimal working conditions, the nature of the irreversibilities occurring in the generator has been inspected and the relative importance of the phenomena of fluid friction, heat transfer and Ohmic dissipation and their contribution to the rate of destruction of useful available work has been compared. These studies reveal notable contrasts between the nature of irreversibilities in the liquid metal generators considered earlier and the more common plasma generators studied in the present work.

Suggested Citation

  • Saidi, M.H. & Montazeri, A., 2007. "Second law analysis of a magnetohydrodynamic plasma generator," Energy, Elsevier, vol. 32(9), pages 1603-1616.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:9:p:1603-1616
    DOI: 10.1016/j.energy.2006.12.002
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054420600346X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2006.12.002?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.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ibáñez, Guillermo & López, Aracely & Pantoja, Joel & Moreira, Joel & Reyes, Juan A., 2013. "Optimum slip flow based on the minimization of entropy generation in parallel plate microchannels," Energy, Elsevier, vol. 50(C), pages 143-149.
    2. Ibáñez, Guillermo & Cuevas, Sergio, 2010. "Entropy generation minimization of a MHD (magnetohydrodynamic) flow in a microchannel," Energy, Elsevier, vol. 35(10), pages 4149-4155.
    3. Sheikholeslami, Mohsen & Ganji, Davood Domiri, 2014. "Ferrohydrodynamic and magnetohydrodynamic effects on ferrofluid flow and convective heat transfer," Energy, Elsevier, vol. 75(C), pages 400-410.
    4. Sheikholeslami, M. & Gorji-Bandpy, M. & Ganji, D.D., 2013. "Numerical investigation of MHD effects on Al2O3–water nanofluid flow and heat transfer in a semi-annulus enclosure using LBM," Energy, Elsevier, vol. 60(C), pages 501-510.
    5. Jiang, Chao & Wang, Tong & Zhu, Shunmin & Yu, Guoyao & Wu, Zhanghua & Luo, Ercang, 2023. "A method to optimize the external magnetic field to suppress the end current in liquid metal magnetohydrodynamic generators," Energy, Elsevier, vol. 282(C).
    6. Khalili, Sufia & Jafarian Dehkordi, Ali & Giahi, Mohammad Hossein, 2015. "Investigating the effect of channel angle of a subsonic MHD (Magneto-Hydro-Dynamic) generator on optimum efficiency of a triple combined cycle," Energy, Elsevier, vol. 85(C), pages 543-555.

    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:32:y:2007:i:9:p:1603-1616. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.