Analisis Efisiensi Pada Sistem Pengeringan Bunga Rosella (Hibiscus sabdariffa L) Menggunakan Alat Pengering Tipe Lemari

Refli Safrizal, Hendri Syah, Rita Khathir

Abstract


Efficiency Analysis in Drying System for Rosella (Hibiscus sabdariffa L) Using Cabinet Type Dryer

ABSTRACT. Drying is one of the most important process in producing a good quality of rosella tea. The study was aimed to evaluate the drying efficiency of rosella tea by using a cabinet dryer. The source of energy for the dryer was from the burning of charcoal. The charcoal was prepared from the coconut shell since it was abundant biomass product. About 7.5 kg of fresh rosella flower was dried for 17 hours. The total of charcoal consumed was 17 kg. The moisture content of rosella flower was reduced from 90 to 12 %. The analysis showed that the total of energy produced from the burning of 17 kg charcoal was 309.4 MJ, whilst the total energy needed to dry the flower was 15,72 MJ. Therefore, the drying efficiency was still low about 4.58%. Further study is recommended to improve the drying efficiency for example by the use of deeper depth of dried products between 2 and 6 cm as well as by improving the system of hot air circulation. 


Keywords


cabinet dryer; drying, efficiency; rosella

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References


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DOI: https://doi.org/10.17969/rtp.v5i2.234

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associated with Indonesia Society of Agricultural Engineering (ISAE) Aceh.
Jl. Tgk. Hasan Krueng Kalee No. 3, Kopelma Darussalam,
Banda Aceh, 23111, Indonesia.
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