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    Performance analysis of an improved solar dryer integrated with multiple metallic solar concentrators for drying fruits

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    Journal Article (2.135Mb)
    Date
    2020-07-01
    Author
    Ssemwanga, M.
    Makule, E.
    Kayondo, S.I.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Reducing postharvest losses (PHL) of fresh perishable agro-produce is a key strategic pathway to increasing incomes, food and nutrition security in East Africa. In response, an improved Hybrid Indirect Passive (HIP) solar dryer with a modified solar collector plate and drying cabinet, has been developed and presented as a better food drying alternative against the traditional open sun drying (OSD) method. A conventional active-mode Solar Photovoltaic and Electric (SPE) dryer with an auxiliary thermal-backup system was also fabricated. The fruit drying performance of the HIP and SPE dryers was evaluated using pineapples and mangoes, and compared against the traditional open sun drying (OSD) method. The food drying duration for the SPE, HIP and OSD methods were 10 h, 18 and 30 h; respectively. Drying efficiency of the improved HIP dryer was comparable to the SPE dryer and was 18% higher than the OSD method. Therefore, modifying the solar collector plate with multiple metallic solar concentrators coupled with an improved greenhouse cabinet significantly improves the drying performance of the HIP dryer. The HIP dryer is, therefore recommended for mass adoption against the OSD method.
    https://dx.doi.org/10.1016/j.solener.2020.04.065
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7653
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.solener.2020.04.065
    IITA Subjects
    Food Security; Handling, Transport, Storage and Protection of Agricultural Products; Post-Harvesting Technology; Socioeconomy
    Agrovoc Terms
    Solar Drying; Agricultural Production; Food Security; Economic Value; EAST AFRICA
    Regions
    Africa; East Africa
    Countries
    Uganda
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Solar Energy
    Collections
    • Journal and Journal Articles4835
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