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All Journal Jurnal Keteknikan Pertanian ROTOR: JURNAL ILMIAH TEKNIK MESIN Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering JEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science) AL-JAZARI JURNAL ILMIAH TEKNIK MESIN Justek : Jurnal Sains Dan Teknologi SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan ABDIMAS SILIWANGI Jurnal Sistem Cerdas PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat J-Dinamika: Jurnal Pengabdian Kepada Masyarakat JE (Journal of Empowerment) JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Majamecha CERMIN: Jurnal Penelitian INTEGRITAS : Jurnal Pengabdian J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin JURNAL FLYWHEEL Mechonversio: Mechanical Engineering Journal Electrices : Jurnal Otomasi Kelistrikan dan Energi Terbarukan Jurnal Serambi Abdimas TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat ARMATUR : Artikel Teknik Mesin dan Manufaktur Mechanical Engineering for Society and Industry JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Jutek JAGO Journal of Earth Energy Science, Engineering, and Technology IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Polimesin Journal Electric Field J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Energy: Jurnal Ilmiah Ilmu-ilmu Teknik
Dani Hari Tunggal Prasetiyo
Universitas Jember
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Integration of taguchi method and digital metrology for precision fused deposition modelling of PLA-based vibration-damping components Danang Yudistiro; Salahuddin Junus; Dani Hari Tunggal Prasetiyo; Istiqomah Rahmawati; Helda Wika Amini; Meta Fitri Rizkiana
Jurnal Polimesin Vol 24, No 1 (2026): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i1.8352

Abstract

This study integrates the Taguchi method and 3D digital metrology to improve dimensional accuracy in the Polylactic Acid (PLA)-based Fused Deposition Modelling (FDM) process. The research focuses on the fabrication of vibration-damping roller components in a Continuously Variable Transmission (CVT) system that demands high geometric precision. A Taguchi L9 experimental design was used to analyze the effects of layer height, extrusion temperature, and filling density on the volume deviation of the printed product. The evaluation was conducted using 3D scanning and analyzed using the Signal-to-Noise (S/N) ratio and Analysis of Variance (ANOVA). The optimal parameter combination was obtained at a layer height of 0.25 mm and an extrusion temperature of 220 °C, resulting in the minimum volume deviation and the highest process stability. The ANOVA results identified layer height as the most dominant factor, followed by extrusion temperature, while filling density had a relatively small effect. Validation tests showed good agreement between the predictions and the experimental results. These findings confirm the effectiveness of integrating the Taguchi method with digital metrology in supporting the development of PLA-based precision additive manufacturing for sustainable automotive component applications.This study integrates the Taguchi method and 3D digital metrology to improve dimensional accuracy in the Polylactic Acid (PLA)-based Fused Deposition Modelling (FDM) process. The research focuses on the fabrication of vibration-damping roller components in a Continuously Variable Transmission (CVT) system that demands high geometric precision. A Taguchi L9 experimental design was used to analyze the effects of layer height, extrusion temperature, and filling density on the volume deviation of the printed product. The evaluation was conducted using 3D scanning and analyzed using the Signal-to-Noise (S/N) ratio and Analysis of Variance (ANOVA). The optimal parameter combination was obtained at a layer height of 0.25 mm and an extrusion temperature of 220 °C, resulting in the minimum volume deviation and the highest process stability. The ANOVA results identified layer height as the most dominant factor, followed by extrusion temperature, while filling density had a relatively small effect. Validation tests showed good agreement between the predictions and the experimental results. These findings confirm the effectiveness of integrating the Taguchi method with digital metrology in supporting the development of PLA-based precision additive manufacturing for sustainable automotive component applications.
A Multivariate LSTM Approach for Monthly Rice Production Forecasting in East Java Hasanur Mohammad Firdausi; Satryo Budi Utomo; Gamma Aditya Rahardi; Dani Hari Tunggal Prasetiyo
Jurnal Sistem Cerdas Vol. 8 No. 3 (2025)
Publisher : APIC

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37396/jsc.v8i3.595

Abstract

Accurate forecasting of rice output is essential for improving regional food security planning, particularly in East Java Province, which serves as a major national rice granary. This study develops a Long Short-Term Memory (LSTM) model to predict rice production using monthly data on production and harvested area from 2018 to 2024. The methodology includes data preprocessing, normalization, sequence construction with a sliding window, training of a multivariate LSTM model, and performance evaluation using mean absolute error (MAE), root mean square error (RMSE), and mean absolute percentage error (MAPE). Results show that the LSTM model achieves superior predictive accuracy, with an MAE of 95,030.16, RMSE of 120,229.01, and MAPE of 16.64%, significantly outperforming baseline Moving Average and Linear Regression models. While the model effectively captures seasonal production trends, some inaccuracies remain during periods of anomalous production values. These findings suggest that the LSTM model is effective for projecting rice production and may provide a foundation for early warning systems and regional food distribution strategies. Further improvements could be realized by integrating climate variables or adopting a hybrid model architecture to enhance predictive precision.
Optimization of Biodiesel Synthesis from Palm Oil Using Continuous Circulation Reactor on Fuel Characteristics Nouvan Putra Ramadhan; Dani Hari Tunggal Prasetiyo Dani; Grace Oktavia Putri; Hawin Rizqi Farhataini AM; Iqbal Ramadani
Jurnal Keteknikan Pertanian Vol. 14 No. 2 (2026): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.014.2.297-317

Abstract

The ever-growing demand for energy has driven many parties to seek more sustainable alternative fuels, and biodiesel from palm oil is a promising candidate. However, the biodiesel production process still faces several significant challenges, particularly regarding reaction effectiveness and transesterification stability. These two issues are the primary focus of this research. This study investigated the effects of circulation operating time and circulation flow rate in a continuous circulation reactor on biodiesel characteristics. Biodiesel synthesis was performed by varying the circulation operating time (60, 80, and 100 min) and the circulation flow rate (100, 300, and 500 LPM). Here, the circulation operating time refers to the duration of each experimental run during which the reaction mixture was continuously recirculated through the reactor. It represents the reactor operating duration rather than the hydraulic residence time (HRT). The resulting biodiesel was then tested for viscosity, density, flash point, calorific value, and yield. The test results showed that the viscosity of biodiesel ranged from 4.625 to 7.098 cSt, while the density was between 0.850 to 0.871 g/cm³. The calorific value of biodiesel ranged from 9915.56 to 10862.22 cal/gram, while the yield obtained was between 63.3% and 84.2%. The highest biodiesel yield (84.2%) was obtained at an operating time of 80 min and a circulation flow rate of 100 LPM. Extending the operating time to 100 min did not further increase the biodiesel yield. The highest calorific value, 10862.22 cal/gram, was achieved at an operating time of 60 minutes with a flow rate of 300 LPM. Overall, the continuous circulation reactor has good potential to increase the effectiveness of biodiesel synthesis from palm oil. Overall, the continuous circulation reactor demonstrated good potential for biodiesel production from palm oil. Among the investigated operating conditions, the highest biodiesel yield was obtained at an operating time of 80 min and a circulation flow rate of 100 LPM.
Peran Waktu Reaksi dalam Mengendalikan Trade-Off antara Efisiensi Konversi dan Karakteristik Fisikokimia Biodiesel dari Minyak Goreng Bekas: The Role of Reaction Time in Controlling the Trade-Off between Conversion Efficiency and Physicochemical Characteristics of Biodiesel from Used Cooking Oil Dani Hari Tunggal Prasetiyo; Andi Sanata; Danang Yudistiro; Alief Muhammad; Mas Ahmad Baihaqi; Hartawan Abdillah
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 11 No. 1 (2026): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v11i1.5480

Abstract

Pemanfaatan minyak goreng bekas sebagai bahan baku biodiesel merepresentasikan pendekatan strategis. Hal ini dikarenakan dapat pengelolaan limbah dengan optimal menjadi penyediaan energi berkelanjutan. Akan tetapi, peran durasi reaksi dalam mengendalikan keterkaitan antara efisiensi konversi dan mutu bahan bakar masih belum dipahami secara komprehensif. Oleh karena itu, kajian ini menguantifikasi pengaruh waktu reaksi yang mendasari fenomena trade-off antara yield  dan karakteristik fisikokimia biodiesel. Eksperimen dilakukan pada variasi waktu reaksi 45–90 menit dengan evaluasi parameter yield , densitas, viskositas kinematikaa, dan flash point. Hasil menunjukkan bahwa yield  maksimum sebesar 85,64% dicapai pada 45 menit, kemudian menurun hingga 74,34% pada 90 menit. Sebaliknya, densitas dan viskositas meningkat secara bertahap, sementara flash point mengalami penurunan. Tren ini mengindikasikan adanya pergeseran komposisi produk yang dipicu oleh dominasi reaksi samping, termasuk reaksi reversibel dan akumulasi senyawa antara. Temuan tersebut menegaskan bahwa waktu reaksi berperan sebagai variabel pengendali distribusi komponen dalam sistem, yang secara simultan memengaruhi efisiensi konversi dan kualitas bahan bakar. Berdasarkan evaluasi terhadap parameter yield , densitas, viskositas kinematika, dan flash point, rentang waktu reaksi 45–60 menit menunjukkan keseimbangan terbaik antara efisiensi konversi dan karakteristik fisikokimia biodiesel sesuai SNI 7182:2024. Secara konseptual, studi ini memperkuat pemahaman mengenai mekanisme trade-off dalam proses transesterifikasi serta menawarkan pendekatan optimasi berbasis keseimbangan antara kuantitas dan kualitas produk
Pelatihan dan Pendampingan Pemasaran UMKM Rengginang Singkong Berbasis Artificial Intelligence di Desa Banasare Hasanur Mohammad Firdausi; Moh Taufik; Achmad Faqih; Imam Anas Mubarok; Siti Sa’Adah; Nurul Hidayat; Bambang Sri Kaloko; Gamma Aditya Rahardi; Dani Hari Tunggal Prasetiyo
TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Vol. 6 No. 3 (2026): TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat (September)
Publisher : Fakultas Teknik, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tekiba.v6i3.7605

Abstract

This community service program aims to improve the marketing performance of a cassava rengginang micro, small, and medium enterprise (MSME) located in Banasare Village, Rubaru District, which faces limitations in digital marketing capabilities and has not yet utilized artificial intelligence (AI) technology. The partner MSME relies on conventional marketing methods, resulting in limited market reach and low promotional effectiveness. The method employed in this program integrates structured training with hands-on assistance in the implementation of artificial intelligence for marketing purposes. The stages include partner needs analysis through observation and interviews, AI-based marketing training focusing on content creation, direct assistance in applying AI to digital marketing and customer services, and evaluation through a comparison of conditions before and after the program. The results indicate a significant improvement in the partner’s capacity to utilize AI for marketing activities. After participating in the program, the MSME was able to independently create structured digital promotional content using AI tools and implement simple chatbot-based customer service. These changes contributed to more effective promotion, improved service efficiency, and broader market reach compared to the initial condition. The outputs of this community service activity include increased digital marketing skills of the partner MSME, the adoption of AI-based marketing practices, and the development of a replicable training and assistance model suitable for traditional food MSMEs in rural areas. This program demonstrates that artificial intelligence can be applied in a simple and practical manner to support the digital transformation and competitiveness of rural MSMEs.
Optimasi Efisiensi Solar Cell Melalui Solar Tracking dan Sistem Monitoring Pada Proteksi Energi Listrik Mas Ahmad Baihaqi; Hartawan Abdillah; Ahmad Izzuddin; Tamam Asrori; Alief Muhammad; Dani Hari Tunggal Prasettio
Journal Electric Field Vol. 1 No. 1 (2024): Journal Electric Field
Publisher : CV. Sekawan Siji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63440/jef.v1i1.19

Abstract

This research aims to design and develop an advanced monitoring system for solar cells, incorporating solar tracking technology and equipped with an energy storage protection system. In Indonesia, the substantial potential of solar energy remains underutilized, despite the country's advantageous equatorial location, which provides a solar radiation intensity averaging 4.5 kWh/m² per day. The proposed system in this study seeks to maximize solar energy capture by employing a tracking mechanism that aligns the solar cells with the direction of sunlight throughout the day. Additionally, the system is designed with an integrated protection feature to prevent battery overuse, thereby extending the battery's lifespan and ensuring efficient energy storage. The research utilizes an Arduino Uno microcontroller, Light Dependent Resistor (LDR) sensors, and an INA219 sensor module as the primary components for accurate measurement and real-time monitoring. The system's effectiveness is evaluated based on its ability to optimize solar energy reception and maintain the longevity and efficiency of the energy storage system. Experimental results demonstrate that the developed system significantly improves the efficiency of solar energy capture by the solar cells and provides robust protection for the energy storage mechanism. This study contributes to the field of renewable energy by offering a practical solution for enhancing solar energy utilization in regions with high solar irradiance, thus promoting sustainable energy practices and reducing dependence on non-renewable energy sources.
Pengaruh Pembebanan RLC Terhadap Stabilitas Daya Semu dan Kinerja Sistem Pembangkit Listrik Tenaga Bayu (PLTB) Mas Ahmad Baihaqi; Hartawan Abdillah; Winda Ayu Mundari; Tamam Asrori; Alief Muhammad; Dani Hari Tunggal Prasetiyo; Agung Fitrahadi
Journal Electric Field Vol. 2 No. 1 (2025): Journal Electric Field
Publisher : CV. Sekawan Siji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63440/jef.v2i1.104

Abstract

This study aims to evaluate the impact of RLC loading on the power stability and power quality in Wind Power Plant (PLTB) systems. The RLC is applied to stabilize the power generated by the PLTB system, which tends to fluctuate due to wind speed variability. The testing was conducted by measuring the output power of the PLTB system loaded with various RLC configurations. The results show that RLC loading can enhance the apparent power stability and efficiency of the PLTB system. The resistive load (R) yielded the best performance, improving the power factor to 0.95 and maintaining relatively stable output voltage. Meanwhile, the LC loads exhibited lower efficiency with a reduced power factor, but still played a role in balancing reactive power. The reduction in reactive power for inductive and capacitive loads indicates that RLC loading can help reduce power waste and improve power quality. This research makes a significant contribution to the development of more efficient and stable PLTB systems and more reliable renewable energy-based power plants, particularly in managing power stability in the face of fluctuations caused by wind variability.
Co-Authors Abdillah, Hartawan Abdul Basit Achmad Faqih Achmadin, Wahyu Nur Adi Mulyadi Agung Fitrahadi Agus Triono AGUSTIN, DWI Ahmad Iskandar Rahmansyah Ahmad Izzuddin Ahmad Izzuddin Akbar Anugrah Akbar Anugrah Ikhsani Ali, Reynaldi Akbar Alief Muhammad Andi Sanata Andrianata, Mufid Angga Prasmana Angga Prasmana Anggrik Adi Marzuki Putra Aprilia, Ira Ariyanti, Dyah Arizal Mujibtamala Asroful , Asroful Abidin Asroful Abidin Asroful Abidin Asroful Abidin Asroful Abidin Bagus Adi Prasetyo Baidlo, Tsalitsah Wirdatul Baihaqi, Mas Ahmad Baihaqi Bambang Sri Kaloko bayhaqi, ahmad bayhaqi Bekti Palupi Brayen Jovanda Citra Permadi, Billy Citra Suardi Danang Yudistiro Dedi Dwilaksana Defriatno, Mawan Eko Dewi, Indah Noor Dwi Kusuma Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Dodi Setiabudi Dodo Wicaksono Dwi Wahyu Hardiyanto Elvira Wahyu Arum Fanani Ersa Putra, Hafidz Mahardika Eva Kurnia Yulyawan Faizah Ali Fajar Rahman fajar rahman Faqih Noval Fathuddin Noor, Muhammad GAMMA ADITYA RAHARDI Grace Oktavia Putri Haidzar Nurdiansyah Hari Arbiantara Basuki Hartawan , Hartawan Abdillah Hartawan Abdillah Hasanur Mohammad Firdausi Hawin Rizqi Farhataini AM Helda Wika Amini Hendra Dharma Putra Hendra, Joni Hendry Y. Nanlohy Hermanto Hermanto Hermanto Hermanto Hermanto Hikmah, Nuzul Ilminnafik , Nasrul Imam Anas Mubarok Imam Rudi Sugara Imam Rudi Sugara Imam Sholahuddin Imam Sholahuddin Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indayani, Sulis Dyah Candra Iqbal Ramadani Iqbal Ramadhani Iqbal Istiqomah Rahmawati Iswardani, Kurnia Isyuniandri, Dzaky Izzudin, Ahmad Jibril Maulana Junus, Sallahudin Kartini, Audiananti Meganandi lailul ilham Lailul Ilham Linda , Linda Kurnia Supratiningsih Linda Kurnia Linda Kurnia Supraptiningsih Linda Kurnia Supraptiningsih Linda Kurnia Supratiningsih Lukman Hakim Lukman Hakim M. Fathuddin Noor, M. Fathuddin M. Thoriq Akbar Fauzi Mahmud, Rizal Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas, Ahmad Baihaqi Maskur, Oki Maulana, David Mava Nurhaliza Helsinky Meta Fitri Rizkiana Mochamad Fani Nur Umri Moh Taufik Muhammad Dimyati Nashrullah Muhammad Kaka Gabriel Ilah Muhammad Zainur Ridlo Mustakim Mustakim Mustakim Nasrul Ilminnafik Nasrul Ilminnafik Nisak, Rima Zidni Karimatan Noor, Muhammad Fathuddin Nouvan Putra Ramadhan Nugraha, Yanuar Alditya Nurhalim Nurhalim, Nurhalim Nurhalim, Nurhalim Nurul Hidayat Oktakusuma, Mochammad Mashud Pambudi , Setyo Panithasan, Mebin Samuel Poppy Puspitasari Prasetio, Bagus Adi Puranggo Ganjar Widityo Putra, Anggrik Adi Marzuki Putro Adi Pamungkas Renaldo, M. Donal Ricky Kurnia Yudistira Riyanto Setiawan Suharsono Robertus Sidartawan Rochmad Eko Prasetyaning Utomo Salahuddin Junus Satryo Budi Utomo Setyo Pambudi Siti Masluha Siti Sa’adah Subhannaan Alif Rezeki Sumarji Suyitno Swari, Utami Ratna T.S.D, Leliya Nanda Tamam Asrori Tamam Asrori Tamam Asrori Tri Prihatiningsih Trifiananto, Muhammad Utami Ratna Swari Utami, Tata Budi Wahid Hamdani Wahid Hamdani Wahyu Nur Achmadin Wahyu Nur Achmadin Wahyu Nur  Achmadin Welayaturromadhona Wicaksana, Aditya Wira Widyono Hadi Winda Ayu Mundari yanto, Misdi Yudhistiro, Danang Yulyawan, Eva Kurnia