An inverse lumped capacitance method for determination of heat transfer coefficients for industrial air blast chillers

I. O. Mohamed

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    An inverse model using lump body was developed to calculate heat transfer coefficients as a dynamic function of time. The model used sequential function specification algorithm to calculate surface heat flux from transient temperature measurements inside a lump body system. Transient temperature measurements were collected during cooling inside an industrial chiller at two different positions with different air velocities using four replicates for each position. The calculated surface heat flux was found to be very accurate as the maximum value of the root mean squares error (RMSE) for temperature is 0.045 °C, lower than the expected error form thermocouple measurements. The calculated heat flux was then used to calculate heat transfer coefficients as a dynamic function of cooling time followed by calculation of time average heat transfer coefficient using numerical integration. The approach developed here could be a pragmatic powerful dynamic method to model spatial variation of heat transfer coefficients for industrial chillers and freezers.

    Original languageEnglish
    Pages (from-to)404-410
    Number of pages7
    JournalFood Research International
    Volume41
    Issue number4
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Food cooling
    • Industrial chillers
    • Inverse heat transfer
    • Lump capacitance
    • Modelling
    • Refrigeration

    ASJC Scopus subject areas

    • Food Science

    Fingerprint

    Dive into the research topics of 'An inverse lumped capacitance method for determination of heat transfer coefficients for industrial air blast chillers'. Together they form a unique fingerprint.

    Cite this