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UJI KINERJA MESIN PENGERING OTOMATIS TIPE RAK DENGAN PEMANAS LISTRIK PADA KERUPUK IKAN GABUS (Channa striata)

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Drying is an important stage in the processing of snakehead fish crackers because it affects moisture content, product quality, and shelf life. Traditional drying methods are still widely used; however, they have limitations due to dependence on weather conditions and the risk of contamination. Therefore, the use of a rack-type dryer with an electric heater can be an alternative to provide a more controlled drying process. This study aimed to evaluate the performance of a rack-type dryer with an electric heater in drying snakehead fish crackers (Channa striata). The research was conducted at the Agricultural Energy Biosystems and Drafting Laboratory, Universitas Sriwijaya, from January to March 2026. A descriptive method was used with variations in drying temperature of 50°C, 55°C, and 60°C and fan rotational speeds of 1000 rpm, 1200 rpm, and 1400 rpm with three replications. The observed parameters included weight reduction, moisture content, drying rate, drying efficiency, electrical energy consumption, air humidity, and airflow velocity. The results showed that increasing drying temperature and fan rotational speed accelerated the drying process, as indicated by greater moisture reduction, higher drying rates, and lower air humidity. The lower rack showed faster drying results than the upper rack because it was located closer to the heat source. At a temperature of 60°C and a fan rotational speed of 1400 rpm, the lowest moisture contents were obtained, namely 9,11% on the lower rack and 11,56% on the upper rack, which met the SNI 8272:2016 quality standard with a maximum moisture content of 12%. Electrical energy consumption increased with increasing temperature and fan rotational speed, with the highest value reaching 3,63 kWh, while the highest drying efficiency was obtained at 50°C and 1000 rpm at 8,41%. Based on the results, the rack-type dryer with an electric heater was able to improve the drying process of snakehead fish crackers in a more controlled manner, although the heat distribution inside the drying chamber was still not evenly distributed.

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Detail Information

Series Title

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Call Number

T2004032026

Publisher

Indralaya : Prodi Teknik Pertanian, Fakultas Pertanian Universitas Sriwijaya., 2026

Collation

xiii, 60 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

664.907

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Pertanian
Mesin Pengolahan Kerupuk Ikan

Specific Detail Info

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Statement of Responsibility

MI

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