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Pribadi Mumpuni Adhi
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Jurnal Mekanik Terapan
Published by Politeknik Negeri Jakarta
ISSN : -     EISSN : 27471381     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Mekanik Terapan (JMT) adalah jurnal ilmiah yang terbit secara berkala dua kali setahun pada bulan Mei dan Oktober. Jurnal ini dapat digunakan sebagai sumber informasi ilmiah untuk peneliti, akademisi atau lembaga penelitian, insinyur industri, dan lembaga pemerintah. JMT memuat informasi bidang riset Mekanik Terapan berupa hasil riset dan Ulasan Ilmiah pada bidang: -Teknik Mesin dan Manufaktur -Energi (Konversi Energi, Renewable Energy, Applied Chemistry in Energy) -Mekatronika dan Robotika -Otomotif (Alat Berat dan Kendaraan Ringan) -Material dan Metalurgi -Teknik Pembangkit Tenaga Listrik
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 8 Documents
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Search results for , issue "Vol 6 No 2 (2025): Agustus 2025" : 8 Documents clear
Analisis Perancangan Suspensi Belakang pada Kendaraan Listrik Berbasis Standar ISO 2631-1 Setyawan, Renaldi Teguh; Gunawan, Gunawan; Umira, Siti
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7533

Abstract

Perkembangan kendaraan listrik menuntut sistem suspensi yang tidak hanya stabil, tetapi juga nyaman, terutama pada konfigurasi motor penggerak belakang yang menyebabkan distribusi massa menjadi asimetris. Penelitian ini menganalisis karakteristik suspensi belakang kendaraan listrik empat roda menggunakan model massa–pegas–redaman satu derajat kebebasan (1-DOF), dengan evaluasi berdasarkan standar kenyamanan ISO 2631-1. Objek studi berupa kendaraan listrik ringan dengan distribusi massa belakang dominan, menghasilkan beban kerja suspensi belakang sebesar 1.052,5 kg. Hasil perhitungan menunjukkan gaya statis per pegas sebesar 5.162,5 N dan kekakuan pegas 51.625 N/m, menghasilkan frekuensi natural 1,11 Hz yang berada dalam rentang kenyamanan optimal. Dengan damping ratio 0,25, diperoleh koefisien redaman 3,685 Ns/m dan waktu redaman sekitar 2,3 detik. Simulasi osilasi menunjukkan bahwa nilai ini memberikan keseimbangan terbaik antara kenyamanan dan stabilitas, dibandingkan rasio 0,10 dan 0,40. Temuan ini menunjukkan bahwa desain suspensi belakang yang diusulkan layak diterapkan pada kendaraan listrik dengan distribusi massa tidak merata dan mampu memenuhi standar kenyamanan internasional.
Tablet Pemurni Air Yang Terkontaminasi Logam Berat Dengan Memanfaatkan Limbah Kerang Darah (Tegillarca Granosa) I Wayan, Marlon Managi; Arsani, Ida Ayu Anom; Wimargamal, Natan
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7536

Abstract

Water pollution caused by heavy metals such as lead (Pb) poses a serious threat to both environmental and human health. One promising solution involves the use of natural materials derived from organic waste as adsorbents, such as blood clam shells (Tegillarca granosa), which are rich in calcium carbonate (CaCO₃) and exhibit high potential following calcination. This study aims to evaluate the effect of calcination temperature variation on the adsorption efficiency of clam shells in tablet form for Pb²⁺ ions. The calcination process was conducted at temperatures of 400°C, 650°C, and 900°C for 2 hours each, following an initial drying stage at 150°C for 1 hour. The resulting calcined powder was ground, sieved, and compressed into tablets using a mechanical pressure of 150 N. Adsorption tests were carried out using a Pb solution with a concentration of 38.9 ppm for 1 hour, and the residual concentration was analyzed using Atomic Absorption Spectrophotometry (AAS). The results showed that calcination at 400°C yielded the highest adsorption efficiency at 99.3%, followed by 650°C (99.1%) and 900°C (98.4%). These findings indicate that calcination temperature significantly influences the characteristics and performance of the adsorbent, highlighting the potential of calcined blood clam shell waste as an effective and sustainable alternative for removing heavy metal contaminants from polluted water.
Optimisasi Desain dan Kinerja Alat Kupas Kulit Polong Kacang Tanah yang Portable Yohanes, Yohanes Benediktus Yokasing; Amiruddin Abdullah; Alexius Leonardo Johanis; Fransiskus Sapar; Aditya Christian Putra Mandala; James Evan Leha
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7663

Abstract

The peeling machine for peanut shells, which has limitations and achieves a peeling capacity of only 85%, requires optimization. To this end, the friction, pressure, and gravity involved are analyzed. The design concept of the peeling machine considers the topographic conditions, particularly in the East Nusa Tenggara (NTT) region. The result of this optimization produces the 'Peeling Machine for Peanut Shells.' The resulting peeling machine has the following specifications: height of 700 mm, length of 50 mm, width of 37 mm, operated manually, with a production capacity of approximately 0.86 ounces per second. The performance, in terms of rotation speed and the number of peeled peanuts, shows a significant correlation with increased capacity. Increasing the diameter of the blades also contributes to higher output. At a speed of 60 rpm, a closer blade distance (11 mm) yields the best results, indicating that the optimization of machine design needs to consider the blade distance in relation to the rotation speed to enhance efficiency.
Pengembangan Sistem Monitoring IoT Microbubble Generator Berbasis ESP 32 Untuk Mendukung Akuakultur Ivan Wiyarta Cakra Sujana, I Made; Rahmany, Rijal Surya; Batubara, Yongki Christandi
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7666

Abstract

Permasalahan utama dalam budidaya perikanan air tawar adalah ketidakstabilan kualitas air yang sering tidak terdeteksi secara dini, terutama terkait parameter pH, Total Dissolved Solids (TDS), dan Dissolved Oxygen (DO). Pemantauan secara manual memerlukan waktu, tenaga, dan berisiko terhadap keterlambatan deteksi perubahan kualitas air yang berdampak pada penurunan produktivitas dan kesehatan ikan. Untuk menjawab tantangan ini, penelitian ini mengembangkan sistem monitoring kualitas air berbasis Internet of Things (IoT) menggunakan ESP32 Devkit V1 yang mengintegrasikan sensor pH, TDS, dan DO. Data ditampilkan secara lokal melalui LCD 20x4 I2C serta dikirim secara real-time ke platform Blynk dan Google Spreadsheet, guna memudahkan pemantauan jarak jauh dan pencatatan otomatis. Pengujian dilakukan pada akuarium yang dilengkapi teknologi mikrobubble untuk menganalisis efektivitas sistem dalam mendeteksi perubahan kualitas air. Hasil menunjukkan bahwa sensor pH dan TDS memiliki kinerja yang stabil dengan rata-rata pH 7,79 (±0,41) dan TDS 28,27 ppm (±6,97), sedangkan sensor DO menunjukkan nilai rendah (rata-rata 0,038 mg/L) dengan tren peningkatan saat penggunaan mikrobubble. Sistem ini terbukti mampu memberikan solusi pemantauan kualitas air yang efisien, akurat, dan real-time, serta berpotensi mendukung pengelolaan akuakultur berkelanjutan dengan pengembangan lebih lanjut pada sistem aerasi dan sensor DO.
Rancang Bangun Mesin Pengering Bilah Bambu untuk Peningkatan Produktivitas Bambu Laminasi Pratiwi, Ilham Ayu Putri; Bahari, Galuh
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7671

Abstract

Laminated bamboo is an engineered composite product made from dried and bonded bamboo strips, offering high potential as an eco-friendly material for construction and furniture applications. One of the critical steps in its production process is the drying of bamboo strips, which aims to reduce moisture content and prevent mold, cracking, and delamination. This study aims to design an energi-efficient bamboo strip drying system to enhance the productivity of the laminated bamboo industry. The system design includes a modular drying chamber, a boiler-based heating system with a centrifugal blower, and corrosion-resistant materials such as stainless steel SS304. Thermal energi demand was calculated using convection heat transfer and total thermal resistance approaches, resulting in a required energi of 212240.42 kJ to dry 250 bamboo strips per cycle in an hour. Computational Fluid Dynamics (CFD) simulations indicate uniform temperature and airflow distribution inside the drying chamber. The thermal efficiency of the system reaches 97.4%, indicating its suitability for industrial application. These findings provide a foundation for developing standardized, efficient, and sustainable bamboo drying systems.
Simulation and Evaluation Hydrogen-rich Syngas Production from Palm Kernell Shell Through Gasification Kasmiarno, Laksmi Dewi; Nurufazzah, Arifatin
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7676

Abstract

The increasing global demand for energy, coupled with the depletion of fossil fuel reserves, has prompted the urgent need for alternative and sustainable energy sources. Biomass, particularly palm oil waste such as palm kernel shell (PKS) presents as an alternative solution due to its abundance, high calorific value, and low moisture content. This study investigates the production of syngas from PKS through gasification using Aspen PlusTM process simulation software. The simulation is divided into pre-treatment, gasification, and separation stages, employing R-Stoic, R-Yield, and R-Gibbs reactor blocks to model drying, decomposition, and thermodynamic equilibrium, respectively. Two gasifying agents, steam and air, were evaluated under varying temperature conditions and equivalence ratio (ER) ranging from 0.19 to 0.27. The results indicate that both temperature and ER significantly influence syngas composition, particularly the production of H2 and CO, while higher ER values tend to reduce carbon efficiency. Steam gasification produced higher hydrogen yields compared to air. Simulation outputs showed strong agreement with experimental data, validating the model’s accuracy. This study demonstrates the potential of PKS gasification for renewable energy generation and highlights the effectiveness of process simulation for system design and optimization prior to industrial implementation.
Rancang Bangun Walker untuk Lansia dengan Fitur Adjustable Height: Analisis Kekuatan Struktur Menggunakan Simulasi Elemen Hingga Batubara, Yongki; Radyantho, Kholiq Deliasgarin; Sujana, I Made Ivan Wiyarta Cakra; Margyanto, Ageng; Alfandy, Alev Putra; Attila, Muhammad Rayes; Suisman, Kelvin Febriano Wiranata
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7685

Abstract

This study aims to design a walker for the elderly equipped with an adjustable height feature to improve user comfort and safety. The frame design was developed using CAD software and its structural strength was analyzed using the Finite Element Method (FEM). Simulations were carried out with static load variations ranging from 40 kg to 90 kg on aluminum alloy 6061-T4 material. The analyzed parameters include von Mises stress, equivalent strain, total deformation, and safety factor. The simulation results show a maximum von Mises stress of 28.99 MPa at a 90 kg load, which remains well below the material’s yield strength of 230 MPa, with a minimum safety factor of 7.849. These findings demonstrate that the walker design is safe to use within the tested load range. Future research is recommended to conduct dynamic structural testing and experimental validation of the physical prototype.
Analisis Konsumsi Energi Listrik Serta Peluang Penghematan Energi Sistem Pencahayaan Dan Sistem Tata Udara Gedung Pusat Perbelanjaan Ekayuliana, Arifia; Adam Hidayat; Fitri Wijayanti
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7709

Abstract

Penelitian ini bertujuan mengevaluasi konsumsi energi listrik dan mengidentifikasi potensi penghematan energi pada sistem pencahayaan dan tata udara di Plaza XYZ, sebuah pusat perbelanjaan enam lantai di Jakarta Barat yang belum memiliki sistem pemantauan energi. Metode yang digunakan berupa pendekatan kuantitatif melalui observasi lapangan dan analisis data teknis. Evaluasi dilakukan terhadap jumlah lampu, kapasitas AC split, dan performa chiller menggunakan parameter COP dan kW/TR. Hasil menunjukkan nilai Intensitas Konsumsi Energi (IKE) tergolong boros. Potensi penghematan mencapai 6.927,19 kWh/bulan untuk pencahayaan dan 1.145,40 kWh/bulan untuk tata udara. Rekomendasi diarahkan pada optimalisasi sistem untuk efisiensi energi gedung.

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