Modal control of unstable boiling states in three-dimensional nonlinear pool-boiling

R.W. van Gils, M.F.M Speetjens, Heiko J. Zwart, H. Nijmeijer

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    Topic is feedback stabilisation of a nonlinear pool-boiling system in three spatial dimensions (3D). Regulation of its unstable (non-uniform) equilibria has great potential for application in micro-electronics cooling and thermal-management systems. Here, as a first step, stabilisation of such 3D equilibria is considered. A control law is designed that regulates the heat supply to the heater as a function of the Fourier-Chebyshev modes of its internal temperature distribution. This admits a controller that is tailored to the system dynamics, as these modes intimately relate to the physical eigenmodes. The internal temperature distribution is, similar to practical situations, estimated from a finite number of measurement positions on the heater surface by an observer. Performance of this output-based modal controller is demonstrated and analysed by simulations of the nonlinear closed-loop system. This provides first proof of principle of the proposed control strategy for the regulation of 3D boiling states.
    Original languageUndefined
    Title of host publicationProceedings of the Fourteenth InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems ITherm 2014
    Place of PublicationPiscataway, NJ, USA
    PublisherIEEE
    Pages833-839
    Number of pages7
    ISBN (Print)978-147995267-0
    DOIs
    Publication statusPublished - 27 May 2014

    Publication series

    Name
    PublisherIEEE
    ISSN (Print)1087-9870

    Keywords

    • IR-92441
    • EWI-25224
    • METIS-309623

    Cite this

    van Gils, R. W., Speetjens, M. F. M., Zwart, H. J., & Nijmeijer, H. (2014). Modal control of unstable boiling states in three-dimensional nonlinear pool-boiling. In Proceedings of the Fourteenth InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems ITherm 2014 (pp. 833-839). Piscataway, NJ, USA: IEEE. https://doi.org/10.1109/ITHERM.2014.6892367