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All Journal Buletin Agrohorti Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
E. Gunawan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Mechanical Engineering Physics

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Induksi Akar dan Tunas Setek Batang Tanaman Pohpohan (Pilea trinervia Wight) dalam Media Air dengan Perlakuan IBA dan Aerasi Katerin Ninariyani; Darda Efendi; E. Gunawan
Buletin Agrohorti Vol. 6 No. 3 (2018): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.868 KB) | DOI: 10.29244/agrob.v6i3.21103

Abstract

Penelitian ini bertujuan untuk mempelajari pengaruh penggunaan aerasi dan hormon pertumbuhan tanaman Indol -3-butiryc acid (IBA) pada induksi tunas dan akar setek Pohpohan (Pilea trinervia Wight.) dalam media air. Penelitian dilaksanakan di Rumah Kaca Kebun Percobaan Pasir Kuda, Pusat Kajian Holtikultura Tropika (PKHT) IPB pada bulan Juni-Oktober 2016. Penelitian menggunakan rancangan split-plot dua faktor dengan empat ulangan. Faktor pertama sebagai petak utama adalah aerasi terdiri dari dua taraf yaitu aerasi dan tanpa aerasi. Faktor kedua sebagai anak petak adalah IBA dengan empat taraf konsentrasi yaitu 0.0, 0.5, 1.0, dan 2.0 mg L-1. Hasil penelitian menunjukan bahwa perlakuan aerasi dan IBA berpengaruh terhadap persentase setek bertunas, jumlah akar, panjang akar, jumlah tunas, dan panjang tunas, namun tidak berpengaruh pada persentase setek hidup dan setek berakar. Kombinasi perlakuan tanpa aerasi dan IBA 0.5, 1.0, dan 2.0 mgL-1 menghasilkan jumlah akar paling banyak.
Effect of the number of exhaust fans on a rotary dryer for turmeric drying I.B. Alit; I.G.B Susana; I.G.A.K.C. Adhi; S. Hidayatullah; E. Gunawan
Dinamika Teknik Mesin Vol 16, No 1 (2026): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v16i1.1137

Abstract

One type of dryer frequently used in agricultural drying is the rotary dryer. When solids are dried in a rotary dryer, a transport phenomenon occurs that includes the simultaneous transfer of mass, heat, and momentum. This study aims to determine the effect of the number of exhaust fans on the drying performance of turmeric using a rotary dryer. The number of exhaust fans used varied from 1, 2, and 3 units. The main parameters observed included the final moisture content, drying rate, and energy efficiency. The results showed that the use of one exhaust fan resulted in the lowest final moisture content compared to other configurations. During the 8-hour drying process, the rotary dryer with one exhaust fan was able to reduce the turmeric moisture content from 89% to 57.8%, with an average drying rate of 0.55 kg/hour. The use of one exhaust fan resulted in an optimal temperature range of 50–60°C. In addition, this configuration also showed relatively high energy efficiency, ranging from 10.8% to 25.5%. Therefore, the use of a single exhaust fan in a rotary dryer is considered the most optimal configuration in balancing the quality of drying results and energy efficiency.
Co-Authors Efendi, Darda I.B. Alit I.G.A.K.C. Adhi I.G.B Susana Katerin Ninariyani S. Hidayatullah