Thermal performance study of a multi-pass solar air heating collector system for drying of Roselle (Hibiscus sabdariffa)

M. W. Kareem, Khairul Habib, M. H. Ruslan, Bidyut Baran Saha

    研究成果: ジャーナルへの寄稿学術誌査読

    47 被引用数 (Scopus)

    抄録

    This article presents a study on the performance of a forced convective multi-pass solar air heating collector (MPSAHC) system assisted with granite as a sensible energy storing matrix. Experimental drying of Roselle was carried out in August 2015 at Solar Energy Research Site of Universiti Teknologi PETRONAS, Malaysia (4.385693° N and 100.979203 S). The present investigation was conducted under the daily average relative humidity, solar irradiance, ambient temperature and wind speed of 64.5%, 635.49 Wm−2, 32.24 °C, and 0.81 ms−1, respectively. An average drying rate of 33.57 g (kg m2 h)−1 was achieved while the system optical efficiency, collector efficiency, drying efficiency and moisture pickup efficiency of 70.53%, 64.08%, 36.22% and 66.95% were obtained, respectively. MPSAHC dryer was 21 h faster with fair color retention when compared to open sun drying approach (OSDA) that was conducted together under the same weather condition. Techno economic analysis reflected a payback period of 2.14 years. However, drying efficiency could be improved if the inlet air humidity can be controlled to favor drying operation.

    本文言語英語
    ページ(範囲)281-292
    ページ数12
    ジャーナルRenewable Energy
    113
    DOI
    出版ステータス出版済み - 2017

    !!!All Science Journal Classification (ASJC) codes

    • 再生可能エネルギー、持続可能性、環境

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