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All Journal Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Nutrisi Ternak Tropis (JNT) Journal of Community Development Journal of Applied Agricultural Science and Technology Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Journal of Science and Social Development International Journal of Technology, Food and Agriculture Agrimas : Jurnal Pengabdian Masyarakat Bidang Pertanian Jurnal Teknik Pertanian Terapan
Bahariawan, Amal
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Drying Kinetics of Banana Chips: A Modeling Approach Hermanuadi, Didik; Iswahyono, Iswahyono; Kurniawati, Elly; Djamila, Siti; Bahariawan, Amal
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1090-1100

Abstract

The primary goal of this research is to identify and evaluate the most suitable thin-layer drying model to effectively interpret the drying characteristics of banana chips and determine moisture diffusivity at different drying temperatures. The study utilized physiologically mature “kapok” bananas from the local market in Jember Regency. A flash dryer with a 4000-watt electric heating system was used, equipped with a blower for air circulation, an exhaust fan to expel water vapor. The bananas were processed into chips with a thickness of 1 mm. A total of 2000 g of banana chips were dried at constant temperature according to treatment conditions (air velocity 3.2 m/s, drying at temperatures of 60, 70, and 80°C). The study found that higher drying temperatures (80°C) achieved the highest initial drying rate (35.9% in 30 min) compared to 60°C (28.0%) and 70°C (22.0%). However, the drying rate gradually decreased at all temperatures. The drying kinetics of banana chips at 60, 70, and 80°C aligned well with the modified Midilli model. Effective moisture diffusivity values for banana chips at 60, 70, and 80°C were 4.947E-9 m²/s, 5.165(10–9) m²/s, and 5.756(10–9) m²/s, respectively, indicating that drying at 80°C was the most effective. The effective moisture diffusivity value showed a strong correlation with air velocity, drying temperature, material thickness, RH, and specific material attributes. Keywords: Banana, Diffusivity, Drying, Thin layer drying, Modified Midilli Model.
Utilitas Aliran Air Sungai Mendukung Potensi Ketahanan Energi (Power Supply) Skala Mikrohidro di Desa Bedadung Kabupaten Jember Afnani, Fawait; Bahariawan, Amal; Ihsan Alfarizi, Muhammad; Nurhadi, Didik; Zainal Abidin, Ahmad
Journal of Science and Social Development Vol. 8 No. 1 (2025): Journal of Science and Social Development
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jssd.v8i1.1768

Abstract

Energy shortages remain a major challenge for remote communities, impacting sustainable economic development. Micro-hydropower plants (PLTMH) utilizing flowing water resources offer an efficient and cost-effective renewable energy solution, especially for small-scale electricity needs (<100 kW). a community-based service research project in Bedadung Village, Jember Regency, examined the application of Archimedes screw turbines in PLTMH with variations in the immersion levels of the waterwheel (0.5 and 0.75 of the wheel diameter) and measurements taken at different time intervals. Simulation results showed that a waterwheel immersion of ¾ below the water surface produced an average rotation of 476.27 rpm and a voltage of 12.75 V, which was more optimal for meeting the electricity needs of the local community, particularly in tourist locations and commercial areas. A participatory approach and learning-by-doing methods enhanced community understanding of local resource potential while sustainably building energy and economic self-reliance. This study emphasizes the importance of turbine design adjustments and water resource management for the technical and ecological sustainability of PLTMH in remote areas.
Evaluation of Yield, Nutrient Quality, and Palatability of Hydroponic Maize and Rice Fodder at Different Harvest Ages Wulandari, Suci; Respati, Adib Norma; Kusuma, Satria Budi; Bahariawan, Amal; Kartika, Elda Frediana Rety
Jurnal Ilmu-Ilmu Peternakan Vol. 35 No. 3 (2025): December 2025
Publisher : Faculty of Animal Science, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiip.2025.035.03.6

Abstract

This research aims to identify the characteristics and production of fodder at different harvest times by establishing a hydroponic system to ensure a continuous supply of feed for dairy cows. The study comprises two phases. Phase I examines the production and nutrient quality of hydroponic fodder as a substitute for forage. This phase was conducted experimentally via a 2x3 factorial completely randomized design (CRD) design. Factor I = Plant type (maize and rice). Factor II = harvest time (7 days, 10 days, and 13 days). Phase II involves assessing the palatability of maize and rice plants as hydroponic fodder for dairy cattle. The data were analysed via a 2x2 factorial RAL design. Factor I = Plant type (maize and rice). Factor II = harvest time (10 days and 13 days). Maize and rice fodders harvested at various ages present the following characteristics: 1) As the harvest age increases (7, 10, and 13 days), the protein content of both maize and rice fodder increases, although overall production tends to decline after 10 days. The highest (fresh and DM) production occurs with maize fodder harvested at 10 days. 2) The elevated ADF and NDF contents in rice fodder up to 13 days result in lower dry matter digestibility (DMD) and organic matter digestibility (OMD) compared with those of maize fodder because of the presence of husks, which are the primary source of crude fibre. 3) Maize fodder is preferred by dairy cows owing to the number and size of its leaves and its vibrant green appearance.
Rancang Bangun dan Uji Kinerja Alat Press Briket Sistem Hidrolik dengan Sembilan Tabung Pencetak: Design and Performace Test of a Hydraulic System Briquette Press with Nine Molding Cylinders Novita Sari, Elok Kurnia; Ilham, Fathan Fajri; Bahariawan, Amal; Mancini, Ahmad Dava Leo
Jurnal Teknik Pertanian Terapan Vol. 3 No. 2 (2026): Februari
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jtpt.v3i2.6910

Abstract

Keterbatasan kapasitas produksi dan ketidakkonsistenan mutu briket masih menjadi permasalahan umum pada penggunaan alat press briket konvensional, khususnya pada skala usaha kecil dan menengah. Kondisi ini mendorong perlunya pengembangan alat press briket yang mampu meningkatkan produktivitas sekaligus menghasilkan briket dengan kualitas fisik dan mekanik yang lebih seragam. Penelitian ini bertujuan untuk merancang dan mengevaluasi kinerja alat press briket sistem hidrolik dengan sembilan tabung pencetak yang dioperasikan secara simultan dalam satu siklus pengepresan. Kebaruan penelitian ini terletak pada penerapan konfigurasi multi-tabung pencetak berbasis sistem hidrolik yang dirancang untuk meningkatkan kapasitas produksi tanpa menurunkan mutu briket. Metode penelitian meliputi perancangan dan pembuatan alat, serta pengujian kinerja yang mencakup kapasitas produksi, keseragaman dimensi dan berat briket, kuat tekan, serta ketahanan benturan melalui uji drop test. Hasil pengujian menunjukkan bahwa alat mampu menghasilkan sembilan briket dalam satu siklus pengepresan dengan kinerja hidrolik yang stabil. Briket yang dihasilkan memiliki tingkat keseragaman tinggi rata-rata sebesar 92,8% dan keseragaman berat sebesar 96,8%, serta nilai kuat tekan yang memadai. Hasil uji drop test menunjukkan variasi kehilangan massa antar cetakan, dengan sebagian sampel memiliki nilai di bawah 10% yang mengindikasikan ketahanan benturan yang baik. Secara keseluruhan, alat press briket ini berpotensi diterapkan sebagai alat tepat guna pada skala usaha kecil dan menengah, dengan rekomendasi penyempurnaan distribusi tekanan untuk meningkatkan konsistensi mutu produk.
PENGARUH DEBIT UDARA DAN TEMPERATUR PEMANASAN TERHADAP NILAI RELATIVE HUMIDITY PADA PENGUJIAN MESIN PENGERING DEHUMIDIFIER Iswahyono; Alfaris, Mukhamat Galih; Hermanuadi, Didiek; Wibisono, Yossi; Bahariawan, Amal
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 1 (2026): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v7i1.3040

Abstract

Pengering Dehumidifier merupakan pengering buatan untuk mengeringkan bahan yang sensitif terhadap panas. Pengering dehumidifier telah dibuat dan dilengkapi dengan inverter untuk mengatur kecepatan blower, thermostat untuk mengontrol temperatur di evaporator serta elemen pemanas dilengkapi thermoregulator untuk mengontrol temperatur udara pengering. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh debit udara dan temperatur pemanasan terhadap nilai RH dan ketepatan pengontrolan temperatur udara pengering. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan 2 faktorial yaitu debit udara dan temperatur pemanasan. Debit udara terdiri dari 0,014 dan 0,029 m3/s dan temperatur pemanasan terdiri dari 35 oC dan 40 oC. Masing-masing perlakuan diulang sebanyak 3 kali. Analisis data menggunakan analisis ragam ANOVA dilanjutkan uji BNT 5%. Ketepatan pengontrolan temperatur udara pengering dianalisis menggunakan galat relatif. Berdasarkan hasil penelitian disimpulkan bahwa nilai RH udara pengering berbanding lurus dengan debit udara dan berbanding terbalik dengan temperatur pemanasan udara. Semakin tinggi debit udara semakin tinggi nilai RH udara pengering dan semakin tinggi temperatur pemanasan semakin rendah nilai RH udara pengering. Perlakuan terbaik pada debit udara 0,014 m3/s dengan temperatur pemanasan 40 oC yaitu dihasilkan nilai RH 35,47%. Pengontrolan temperatur pemanasan sangat baik dengan nilai galat relatif 1,3% dibawah 5%.
Co-Authors Afnani, Fawait Alfaris, Mukhamat Galih Anna Mardiana Handayani Arjasari, Nova Sulung Bety Etikasari, Bety Budi Kusuma, Satria Didik Nurhadi Djamali, R. Abdoel Elly Kurniawati Faizin, Muhammad Alif Hermanuadi, Didiek Hermanuadi, Didik Ihsan Alfarizi, Muhammad Ilham, Fathan Fajri Indarto Indarto Iswahyono Iswahyono, Iswahyono Kartika, Elda Frediana Rety Kusuma, Satria Budi Mancini, Ahmad Dava Leo MUHAMAD, NUR Nazdirah, Rufiani Ningsih, Niati Norma Respati, Adib Novita Sari, Elok Kurnia Pamungkas, Achmad Ivo Joan Priza Pandunata Putri Yulinarsari, Alditya Rahayu, Chairiyah Umi Ramadhan, Firli Respati, Adib Norma Sakdiya, Siti Arifatu Siswoyo Soekarno Siti Djamila Suci Wulandari Sujarwo, Mohamad Wawan Suparto SUPRIYONO Supriyono Supriyono Triardianto, Dimas WAHYU FIRMANSYAH Yossi Wibisono Yulinarsari, Alditya Putri Zainal Abidin, Ahmad