A new cycle time allocation for enhancing the performance of two-bed adsorption chillers

T. Miyazaki, A. Akisawa, B. B. Saha, I. I. El-Sharkawy, A. Chakraborty

    Research output: Contribution to journalArticlepeer-review

    92 Citations (Scopus)

    Abstract

    The present study proposed a new cycle time allocation in silica gel-water based adsorption chillers to enhance their performances. The new cycle time allocation not only improves the cooling capacity and coefficient of performance (COP), but also contributes in the reduction of delivered chilled water fluctuations. In a conventional adsorption chiller operation, the appropriate pre-heating/pre-cooling process enhances the cooling capacity, whereas the excess pre-heating/pre-cooling time abates the average cooling capacity. The proposed new cycle time allocation allows the continuous cooling effect over the cycle without sacrificing the effect of pre-heating/pre-cooling. Simulation results showed that the new cycle time was effective for both RD type silica gel-water and CaCl2-in-silica gel-water pairs, and the cooling capacity was increased as much as by 6%.

    Original languageEnglish
    Pages (from-to)846-853
    Number of pages8
    JournalInternational Journal of Refrigeration
    Volume32
    Issue number5
    DOIs
    Publication statusPublished - Aug 2009

    All Science Journal Classification (ASJC) codes

    • Building and Construction
    • Mechanical Engineering

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