Design, construction, and performance test of Portable Solar Dryer Dome for shrimp paste raw material drying
Rancang bangun dan uji kinerja Portable Solar Dryer Dome untuk pengeringan bahan baku terasi
DOI:
https://doi.org/10.31764/jau.v13i03.63Kata Kunci:
dome dryer, energi surya, kelembaban relatif, terasi, udang rebonAbstrak
Traditional drying of shrimp paste raw materials is constrained by weather dependency, contamination risks from dust and insects, and inconsistent product quality. This study was designed, constructed, and evaluated the performance of a Portable Solar Dryer Dome for drying silver shrimp (Acetes japonicus) as the primary raw material for Indonesian fermented shrimp paste (terasi). The device features a dome-shaped galvanized iron frame (2×2 cm) covered with UV-resistant plastic (250 microns) and equipped with a battery-powered Solar Powered Fan Cooler (5000 RPM). Performance testing was focused on characterizing the dome's internal microclimate through a no-load approach, without measuring in-situ moisture content reduction, and measured Dry Bulb Temperature (DBT), Wet Bulb Temperature (WBT), and light intensity inside and outside the dome at eight observation times, with three replications. Average DBT inside the dome ranged from 27.7 to 33.3°C, exceeding ambient temperature by 5–7°C (24.0–25.7°C). Relative humidity (RH) inside the dome ranged from 57.7–73.6%, markedly lower than outside the dome (86.6–91.9%), supported by a wet bulb depression of 5–8°C indicating enhanced drying potential. Light intensity inside the dome ranged from 134–370 Lux, compared to 215–385 Lux outside, with a UV plastic transmission ratio averaging 60–97%. These results confirm the greenhouse effect generated by the UV plastic cover in creating an optimal, hygienic, and energy-independent drying microclimate for small-scale shrimp paste production.
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