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Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi
Published by Universitas Teuku Umar
ISSN : 24775029     EISSN : 25020498     DOI : -
Core Subject : Engineering,
Aerospace Engineering Automotive Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Mekanova merupakan kumpulan karya ilmiah para akademisi, peneliti dan praktisi yang bertujuan menyatukan pengalaman-pengalaman, ide-ide dan hasil penelitian terutama dalam bidang“Mekanikal, Inovasi dan Teknologi”.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 298 Documents
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Desain Kendali Otomatis Prototype Inlet-Outlet Air Limbah KPPL Rahmawati, Rahmawati; Amra, Siti; Kamal, Muhammad; Mardiyanto, Arief
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11701

Abstract

Wastewater treatment and retention ponds (KPPL) in industry play a crucial role in waste management. Controlling the inlet and outlet valves is essential to maintain flow balance and process efficiency. Currently, the KPPL at PT.X uses a manual method in valve control that relies on visual observation and sampling, which is limited in accuracy and responsiveness. Therefore, it is necessary to design an automatic valve control prototype to improve the performance of the wastewater treatment system at PT. X. This study aims to build an automatic control system that uses level and pH sensors and a DC motor to regulate wastewater flow. This system uses hysteresis on-off control to prevent excessive energy consumption and extend component life by reducing the frequency of valve opening and closing. The ultrasonic sensor detects the water level, while the pH sensor monitors the water quality before being discharged into the sea. Testing shows the accuracy of the sensors, with an average error of 0.94% for the level sensor and 0.9% for the pH sensor. Hysteresis control keeps the pump and motor off when the water level is within the safe range, which increases efficiency and reduces wear. This system provides more precise control over wastewater flow, ensures safe and environmentally friendly disposal, and reduces manual intervention and the risk of operational errors.Keywords— hysteresis, on-off control, KPPL, pH, ultrasonic sensor
Analisis Material Catwalk untuk Maintenance AC Ducting Dengan Metode Finite Element Method Widyantoro, Murwan; Micael Tambunan, Aron; Saputra, Yayan; Ilahy Rosihan, Rifda
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11814

Abstract

Penelitian ini bertujuan untuk menganalisa material catwalk yang digunakan dalam pemeliharaan sistem pendingin udara (AC) di Gedung G Lantai 22. Seiring dengan meningkatnya kebutuhan pemeliharaan AC, catwalk menyediakan akses yang aman bagi teknisi untuk melakukan inspeksi dan perawatan rutin. Studi ini menggunakan metode Elemen Hingga (Finite Element Method, FEM) untuk menguji kekuatan dan keandalan material catwalk, khususnya Stainless Steel AISI 310, yang dipilih karena ketahanannya terhadap korosi dan oksidasi serta kekuatan mekanisnya yang tinggi. Hasil analisis menunjukkan bahwa catwalk dapat menahan beban maksimum sebesar 19620 Newton dengan faktor keamanan sebesar 2,23, yang setara dengan kapasitas beban sekitar 855 kg dan untuk massa setaranya adalah 8543,48 Newton atau setaranya dengan 870,2 kg. Temuan ini diharapkan dapat meningkatkan standar keselamatan dan efisiensi kerja dalam pemeliharaan AC, menciptakan lingkungan kerja yang lebih aman bagi teknisi. Dengan demikian, penelitian ini diharapkan dapat memberikan kontribusi yang signifikan dalam pengembangan prosedur pemeliharaan yang lebih efektif dan aman untuk sistem pendingin udara di gedung-gedung tinggi.
Desain Alat Ukur Regangan Menggunakan Strain Gauge Berbasis Arduino Uno Susanto, Herdi; Husen, Zakir; Marbun, Mahmuddin; Hanif, Hanif; Mawardi, Mawardi; Hasdi, Syaiful; Ichwan, Hasbi Randi
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11351

Abstract

Industrial applications, machinery and engineering construction, strain is the most important value for determining the selection of suitable and appropriate materials for designing machine elements, with advances in strain measurement analysis technology on Arduino microcontroller-based structures it is very possible to use it. Several studies have succeeded in measuring strain using an Arduino Uno-based strain gauge. Based on the above, it is possible to design a strain measuring tool using an Arduino Uno-based strain gauge to support students' practicum process, so in this research a design of a strain measuring tool using an Arduino Uno-based strain gauge was carried out. The research results have completed the design of a strain measuring tool using an Arduino Uno based strain gauge and can be used on a student practicum scale. The results of tests carried out on Nako iron rods show that there is an appropriate relationship between the load applied, the strain measured and the stress produced. The results of the tests carried out measured the amount of strain produced at various loads such as at a load of 1,000 grams the strain was measured at 0.5345 and a stress of 106.9 MPa. Meanwhile, at a load of 2,000 grams, the strain reached 0.573 and the stress was 114.6 Mpa.
BESARNYA GAYA YANG DIBUTUHKAN PISAU UNTUK MEMOTONG KARET PADA MESIN SHREDDER DI PT. XYZ Sidabutar, Naqasya Asyrori; Darmadi, Herry; Simbolon, Bonar Wahyudi; Nelza, Novia; Simalango, Jeffri
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.12328

Abstract

Shredder machines are classified as cutting machines that use two types of rolls, namely feed rolls and shredder rolls. First the sheet will be inserted, then the feed roll will wrap around the rubber sheet which is pulled into the machine at the same time as the feed roll which wraps around the rubber sheet. Then the thread on the main roll plays the role of pulling the rubber sheet and also the solid corner of the main roll thread also acts as a knife which will press the rubber sheet together with the Death Knife which will clamp the rubber sheet until the rubber sheet is broken or cut. The events that occur in the process of cutting rubber sheets on the shredder machine are the occurrence of cutting forces between the interaction of angles on the main roll thread and also the death knife. This research uses observation and interview methods to collect this data. From the research results, it was concluded that the amount of cutting force required by the cutting knife to cut rubber into small pieces was 247,242 N. Meanwhile, the amount of power used to produce the cutting force to cut rubber sheets was 2,651 HP.
Pembuatan Material Pereduksi Panas Eco-Friendly Berbasis Komposit dengan Memanfaatkan Ampas Sagu Luthfi, Luthfi; Azhar, Azhar; Harahap, Jagodang; Riyadhsyah, Teuku; Sumardi, Sumardi
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11699

Abstract

Sebagai negara produsen sagu terbesar di dunia, Indonesia memiliki potensi ampas sagu yang sangat besar yang selama ini belum dimanfaatkan secara optimal dan hanya dibuang begitu saja tanpa ada nilai manfaat yang diperoleh. Studi yang dilakukan dalam artikel ini memaparkan pemanfaatan ampas sagu dalam pembuatan komposit pereduksi panas dengan menggunakan bahan perekat resin unsaturated polyester yang murah dan banyak tersedia di pasaran. Ada tiga papan komposit yang berhasil dibuat dengan fraksi volume ampas sagu 20%, 30% dan 40%. Pengujian kemampuan dalam mereduksi panas dilakukan dengan mengukur konduktivitas termal dari komposit ampas sagu dengan menggunakan kotak pengujian dengan sensor termokopel DS18B20 yang dikontrol menggunakan mikrokontroler Arduino UNO. Kotak pengujian dibuat sedemikian rupa hingga dapat menguji empat buah spesimen komposit pada saat yang bersamaan dan dilengkapi dengan lampu 100W sebagai pemanas yang dipasang di bagian tengah atas dari kotak. Dari hasil pengujian diperoleh konduktivitas termal yang cukup rendah, k ~ 0.2 – 0.15 W/(m.K) dimana hal ini menunjukkan kemampuan mereduksi panas yang cukup baik. Persamaan korelasi yang menghubungkan persentase ampas sagu terhadap konduktivitas termal komposit juga telah berhasil dikembangkan dengan menggunakan pencocokan kurva regresi linear sederhana baik untuk keseluruhan data ataupun untuk rentang nilai dimana konduktivitas termal telah mencapai kondisi steadi.
Evaluasi Kinerja Cooler #1533 Pada Unit Distilasi #1500 PT. X Ayu, Dinda Laras; Wahyuningtyas, Aulia
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11384

Abstract

PT. X is a company that produces the first Hydrogen Peroxide (H2O2) in Indonesia. The raw materials used in producing hydrogen peroxide (H2O2) at PT X are hydrogen (H2), oxygen (O2), water (H₂O) and supporting raw materials, namely WS (working solution), catalyst, stabilizer and ethylene. In the process of making hydrogen peroxide there are many stages in order to get the results on demand. This certainly requires supporting tools in the process such as coolers. The special task carried out is “Evaluation of Cooler #1533 Performance at Distillation Unit #1500 PT. X. Based on the calculation, the Rd value and %heat efficiency for 5 days tend to fluctuate. The Rd value ranges from 0.00094832 btu/hr.ft2.ᵒF to 0.002121257 btu/hr.ft2 .ᵒF, while the heat efficiency value ranges from 48% to 51%. The HE evaluation results on the 31st have the highest Rd value of 0.00212157 btu/hr.ft2 .ᵒF) so that the resulting heat efficiency value is 50%. While the HE evaluation results on the 28th have the lowest Rd value of 0.00094832 (btu/hr.ft2.ᵒF) so that it has the highest efficiency of 51%. The overall head coefficient (Uc) value is greater than the design overall coefficient (Ud) which indicates that the heat transfer in a clean state is higher than in a dirty state, so it can be said that cooler #1533 is still in a state worth using. The ΔP value for the shell has a value of 0.086605283 Psi and the ΔP value on the tube is 0.007 Psi range. This value is still below the standard value allowed, which is 10 Psi.
Optimasi Desain Alat Penghancur Buah Kakao Dengan Pendekatan Metode Value Engineering untuk Meningkatkan Efisiensi dan Kualitas Produksi Muhazir, Achmad; Sinaga, Zulkani; Widyantoro, Murwan; Arifin, Muhammad; Muzakkir, Muzakkir
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11945

Abstract

Industri manufaktur, khususnya dalam pengolahan coklat, menghadapi tantangan untuk meningkatkan efektivitas dan efisiensi produksi. Salah satu tahapan yang memerlukan perbaikan adalah pemecahan buah kakao yang masih dilakukan secara manual, menggunakan alat tradisional yang tidak hanya memakan waktu lama tetapi juga menyebabkan ketidaknyamanan fisik bagi petani. Penelitian ini bertujuan untuk merancang dan mengembangkan alat pemecah buah kakao berbasis teknologi yang dapat meningkatkan produktivitas serta mengurangi keluhan ergonomis pada petani. Metode Value Engineering diterapkan untuk mengoptimalkan desain alat, dengan mempertimbangkan efisiensi biaya dan peningkatan kinerja alat. Hasil penelitian menunjukkan bahwa penggunaan alat pemecah kakao yang dirancang dapat meningkatkan kapasitas produksi dari rata-rata 12.975 kg menjadi 15.000 kg per bulan, mencapai target produksi 100%. Selain itu, keluhan fisik yang dialami oleh petani, seperti sakit pada tangan dan bahu, mengalami penurunan signifikan sebesar 83,33%, dengan penurunan rata-rata keluhan sebesar 1,33%. Biaya pembuatan alat menggunakan metode Value Engineering sebesar Rp. 2.000.000,00, jauh lebih efisien dibandingkan dengan membeli alat pemecah kakao yang sudah ada di pasaran, yang berkisar antara Rp. 10.000.000,00 hingga Rp. 15.000.000,00. Hasil perhitungan Break-Even Point (BEP) menunjukkan bahwa investasi pada alat ini akan terbayar dalam 7 unit produksi.Kata Kunci: Value Engineering, Optimal,  Alat pemecah, Efisiensi, Ergonomis
Kinerja Digester Biogas Tahap Tunggal yang Mengolah Limbah Makanan pada Suhu Tropis Fahmi, Nadya Yunisa; Priadi, Cindy Rianti; Hermansyah, Heri; Suharso, Arif Rakhman
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.12063

Abstract

The degradation process of food waste with anaerobic digestion technology can be performed in a single-stage bioreactor. This study examined the effect of a single-stage digester configuration on biogas production using cow manure inoculum at a tropical ambient temperature of 27.3 ± 1 °C. The single-stage digester had a working volume of 369 L. Feeding food waste into the bioreactor was carried out 5 times a week with a maximum OLR of 0.8 Kg/day. The average biogas production was 90.6 L/day. Also, the results showed that applying a single-stage digester configuration in degrading food waste could produce a carbon recovery of 71.41% in the carbon mass balance analysis. These results indicate that the single-stage digester configuration performed well. The single-stage digester configuration gradually increased biogas production.
Prediksi Kualitas Penyolderan pada Mesin Solder Wave Menggunakan Metode FIS dan ANFIS Model Sugeno Solihin, Solihin; Muhendra, Rifki; Prasmoro, Alloysius Vendhi; Al Munawir, Al Munawir
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11803

Abstract

This study aims to predict the quality of the soldering process using a wave soldering machine by utilizing the Sugeno model Fuzzy Inference System (FIS) and Adaptive Neuro-Fuzzy Inference System (ANFIS) methods. Soldering is a critical stage in PCB (Printed Circuit Board) production, where its quality is influenced by parameters such as solder temperature, conveyor speed, and flux volume. Traditional approaches such as visual inspection are considered less effective because they are prone to human error. Therefore, this study proposes the use of Sugeno FIS and ANFIS to model the non-linear relationship between process parameters and soldering quality, which is measured through Defect Per Opportunity (DPO). Data were obtained from the actual production process and processed using MATLAB. Sugeno FIS was applied with fuzzification, rule making, and defuzzification, while ANFIS combines neural networks with fuzzy logic for data-driven optimization. The results showed that both models were able to predict DPO with high accuracy, indicated by very small Root Mean Squared Error (RMSE) values (0.00179 for FIS Sugeno and 1.31597 × 10⁻⁶ for ANFIS). ANFIS excels in capturing non-linear complexity, especially in conveyor speed variations. Simulations using SIMULINK prove the effectiveness of this model in real-time prediction. These findings provide an innovative solution for the electronics industry to improve soldering quality automatically. Keywords -   Wave soldering, FIS Sugeno, ANFIS, quality prediction, DPO.
PENGARUH KUAT ARUS DAN LAJU GAS ARGON PADA HASIL PENGELASAN (GTAW) PIPA STAINLESS STEEL TEBAL 4,0 MM TERHADAP UJI KEBOCORAN DENGAN METODE PENETRANT TEST DAN UJI TARIK Darmadi, Herry; Savitri, Agustin Nurya; Karti, Karti; Lumbantoruan, Sorta; Saputra, Wahyu
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 11, No 1 (2025): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v11i1.11878

Abstract

Penelitian ini bertujuan untuk mengetahui kebocoran pada sambungan pipa stainless steel SS 304 dengan hasil pengelasan gas tungsten arc welding (GTAW) dengan tungsten berwarna merah dengan menggunakan kawat pengisi Kode ER308LSI dengan menggunakan metode Non Destructive Test (Penetrant Test) dan juga untuk mengetahui pengaruh kuat arus terhadap kekuatan tarik (Tensile Test) pada sambungan. Pada penelitian penetrant test didapat dari hasil pengujian yang telah dilakukan dari tiga hasil pengujian yang baik dan tidak mengalami cacat permukaan hasil pengelasan yaitu pada kuat arus 100 Ampere dengan flow gas argon  20 km/jam. Pada sambungan pipa hasil pengelasan dengan metode pengelasan GTAW, pengujian kekuatan tarik yang didapat nilai rata-rata kekuatan maksimum kuat arus 85 ampere dengan  flow gas argon 15 km/jam yaitu 104.56 kg/mm2, arus 100 ampere dengan  flow gas argon 20 km/jam yaitu 95.33 kg/mm2 dan arus 105 ampere dengan flow gas argon 25 km/jam  yaitu sebesar 97.68 kg/mm2. Tujuan dari penelitian kekuatan tarik ini yaitu untuk mengetahui batas maksimum dari kekuatan tarik sambungan pipa.

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