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All Journal VANOS Journal of Mechanical Engineering Education Jurnal Rekayasa Material, Manufaktur & Energi Machine : Jurnal Teknik Mesin Ensiklopedia of Journal Jurnal Inovator AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Teknologi Dan Sistem Informasi Bisnis Jurnal MESIL (Mesin Elektro Sipil) ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) BERKAT: Jurnal Pemberdayaan Masyarakat East Asian Journal of Multidisciplinary Research (EAJMR) Formosa Journal of Science and Technology (FJST) Jurnal Pengabdian Masyarakat Bestari (JPMB) Sinergi Polmed : Jurnal Ilmiah Teknik Mesin atech-i
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Analisis Kekuatan Tarik Plat Baja ST37 Variasi Kuat Arus dengan Metode Shielded Metal Arc Welding Boangmanalu, Eka Putra Dairi; Saragi, Jandri Fan HT; Pratama, Angga Bahri; Al Qadry
Jurnal INOVATOR Vol. 6 No. 2 (2023): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v6i2.256

Abstract

Penelitian ini bertujuan untuk mengetahui sifat-sifat mekanik material melalui pengujian tarik. Spesimen pengujian tarik yaitu dari plat st37, spesimen tersebut diuji berdasarkan variasi kuat arus dengan metode Shielded Metal Arc Welding (SMAW). Proses yang dilakukan dengan mempersiapkan specimen sesuai dengan standart ASTM-E8 dengan perbandingan arus listrik 35A, 45A, 55A, 65A, 75A, 85A dan Raw material. Berdasarkan hasil pengujian, variasi kuat arus 85A lebih dominan memiliki kekuatan pembebanan tertinggi dari pada kuat arus lainnya, specimen pengujian tarik dengan menggunakan SMAW 85 A memiliki pembebanan maksimum sebesar 21.561 N, tegangan maksimum yang diperoleh 94.57 Mpa, regangan maksimum 0.07 % dan modulus young sebesar 2.944.19 Mpa, akan tetapi jika dibandingkan dengan raw material, nilai dan sifat-sifat mekanisnya lebih baik daripada variasi kuat arus, hasil yang diperoleh pembebanan maksimum sebesar 23.463 N, tegangan maksimum 102.91 Mpa, regangan maksimum 0.07 % dan Modulus young 3.087.52 Mpa.
Analisis Efisiensi Turbin Pada STG-20 di PLTP XYZ Pratama, Angga Bahri; Saragi, Jandri Fan HT; Boangmanalu, Eka Putra Dairi; Sahat, Sahat
Jurnal INOVATOR Vol. 7 No. 1 (2024): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v7i1.304

Abstract

Panas bumi merupakan salah satu sumber daya terbarukan yang paling potensial untuk Indonesia. Cara pemanfatannya adalah dengan membuat sumur dengan kedalaman mencapai titik panas bumi, lalu panas bumi tersebut dialirkan melalui pipa-pipa untuk memutar turbin agar dapat membuat generator bergerak dan menghasilkan energi listrik. Efisiensi dapat didefinisikan sebagai perbandingan antara daya keluaran (output) terhadap daya masukan (input) dalam suatu proses. Efisiensi merupakan persamaan yang penting dalam termodinamika untuk mengetahui seberapa baik konversi energi yang terjadi. Penelitian ini bertujuan untuk mengetahui efisiensi turbin di PLTP XYZ, kemudian dianalisis. Pengambilan data dilakukan pada tanggal 8 Maret 2024 dari jam 08:00 – 12:00 WIB, dan data yang diambil atau yang dianalisis diambil berdasarkan beban generator dari yang tertinggi. Hasil dari analisis didapatkan efisiensi turbin paling besar yaitu 95,79% pada jam 10:00 WIB. Efisiensi terendah yang didapatkan terjadi pada jam 12:00 WIB, yaitu 86.92%. Efisiensi turbin yang tidak stabil dapat disebabkan oleh berbagai faktor, dan solusi untuk meningkatkan efisiensi juga bervariasi tergantung pada penyebabnya, seperti memantau kinerja turbin secara berkala, menyesuaikan aliran uap sesuai dengan beban, dan melakukan perawatan preventif secara berkala. Secara umum, kinerja turbin masih dalam kategori normal, karena efisiensi yang dihasilkan masih di atas 80%.
Hardness Test Analysis on ST 37 Steel Plate Material and Aluminum Using the Brinell Test Method Sinaga, Franklin Taruyun Hudeardo; Boangmanalu, Eka Putra Dairi; Pratama, Angga Bahri; Saragi, Jandri Fan HT; Al Qadry; Sahat
Formosa Journal of Science and Technology Vol. 2 No. 12 (2023): December 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v2i12.7035

Abstract

One of the most frequently used methods of material testing is hardness testing. The aim of conducting research on material hardness is to determine the hardness value of the material specimens tested, namely ST 37 steel plate and aluminum plate. The test method is to use the Brinell hardness test where the values ​​obtained during testing are from the force load, indenter diameter and pressure trace diameter and the pressure time that has been determined. By using testing tools such as hardness tester, mechanical caliper, indenter, flat file, stopwatch. And the materials used are ST 37 steel plate, aluminum plate and sandpaper. From the test results obtained we can calculate the Brinell hardness value of the test material. The value from the calculation of test data where the highest hardness value using the Brinell method (BHN) for ST 37 steel plate material is 256.992. Meanwhile, the highest hardness value using the Brinell method (BHN) for aluminum plate material is 55,182.
Charpy and Izod Method Impak Strength Analysis on ST 37 Steel with Temperature Variations Boangmanalu, Eka Putra Dairi; Pratama, Angga Bahri; Qadry, Al; Saragi, Jandri Fan HT; Sinaga, Franklin Taruyun Hudeardo
Formosa Journal of Science and Technology Vol. 2 No. 12 (2023): December 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v2i12.7074

Abstract

This research is impact testing using the Charpy and Izod methods, temperature variations of 1500 C, 2500 C and raw material as the research variable. The results of the Charpy test with a variation of 150 0C obtained a maximum absorbed energy of 97.65 J, with an impact value of 0.222 J/mm2. Then the maximum energy absorbed through testing at a temperature of 2500C is 78.28 Joules and the impact value is 0.177 J/mm2. Furthermore, the raw material test results showed that the maximum energy absorbed was 145.96 J with an impact value of 0.330 J/mm2. Izod testing with a temperature of 1500C obtained a maximum absorbed energy of 60.94 J with an impact value of 0.101 J/mm2. Furthermore, the maximum energy absorbed at a temperature of 2500C is 36.83 Joules and the impact value is 0.061 J/mm2. The raw material test results show that the maximum energy that can be absorbed is 80.53 J with an impact price of 0.133 J/mm2
RANCANG BANGUN MESIN PEMOTONG PIPA DENGAN LAS OXY ACETYLENE Ariksa, Jeri; Setiawan, Yudi; Kadriadi, Kadriadi; Amiruddin, Amiruddin; Pratama, Angga Bahri
Machine : Jurnal Teknik Mesin Vol 9 No 1 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i1.3914

Abstract

Metal cutting is the stage of processing profile raw materials and steel plates according to the cut marks that have been set in the marking process. One of the metal cutting techniques is to use oxy acetylene welding where the cutting occurs due to the reaction of oxygen and steel. Oxy acetylene welding is a manual cutting and welding process, in which the surfaces to be joined are heated until melted by the flame of acetylene gas, namely burning C₂H₂ with O₂ with filler metal or without filler metal where the joining process is without pressure. Besides for welding purposes (connection), oxy acetylene welding can also be used as preheating, brazing, cutting and hard facing. In the process of cutting iron pipes using oxy acetylene welding manually, the problem that is often found is the results of uneven and not straight cuts. This causes a leveling process to be needed on the edges that are cut so that they are flat and straight. In this research, a pipe cutting machine with oxy acetylene welding has been made which aims to produce straight, smooth, and even pipe cutting. The pipe cutting machine that has been made can produce flat, smooth, and straight iron pipe cuts on iron pipes with a diameter of 4.5 inches, 3.5 inches and 3 inches with a cutting time of 32 seconds, a motor wave rotation speed of 5.8 Hz, and a cut tolerance of ± 3 mm.
RANCANG BANGUN ALAT PENGERING BAJU MENGGUNAKAN UDARA PANAS Kadriadi, Kadriadi; Wirakusuma, Kadex Widhy; Pratama, Angga Bahri; Ariksa, Jeri; Yandi, Welly
Machine : Jurnal Teknik Mesin Vol 9 No 1 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i1.3950

Abstract

Drying is a process of transferring heat and water vapor simultaneously which requires heat energy to evaporate the water content. This heat energy can usually be obtained from sunlight. However, during the rainy season, this condition inhibits the drying process that utilizes sunlight, so the drying process takes a long time. Therefore we need a tool that can dry clothes without depending on the heat source from the sun's rays. The clothes dryer is a tool used to dry clothes with artificial heat energy, one of the artificial heat producers is a heating element or what is often called a heater. The artificial heating element used in this research is Electric Heater. This Electric Heater is equipped with a fan that can produce an indoor temperature of up to ± 52.3º C so that the heat generated by the Electric Heater can convert the water contained in the clothes into water vapor which will then be released into the environment with the help of a fan. Based on the results of calculations and testing, the ability of this tool is able to evaporate an average mass of water of 535.8 grams/hour and this machine reaches its optimum point for the number of drying clothes that can be dried as many as 6 clothes.
RANCANG BANGUN ALAT SETTING ALIGNMENT RODA GIGI SEBAGAI MEDIA PEMBELAJARAN DI LABORATORIUM PERBAIKAN DAN PEMELIHARAAN MESIN Kadriadi, Kadriadi; Pratama, Angga Bahri; Wirakusuma, Kadex Widhy; Saragi, Jandri Fan HT; Ariksa, Jeri; Alfian, Muhammad; Siswanto, Yudi
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4509

Abstract

Alignment is a technique used to maintain machine components that rotate or transfer power so they can operate as effectively as possible and prevent damage to other machine components from errors made during installation or maintenance. Alignment is a maintenance activity that is often carried out on machines in industry and machines within the Morowali Metal Industry Polytechnic, especially in the Mechanical Maintenance Engineering Study Program. Competency in the alignment of gears and bearings is very much needed for prospective mechanics in the industry. The purpose of making this tool is as a simulation tool for learning alignment to achieve straightness and centricity between two rotating shafts (drive and driven shaft) to prevent friction, vibration, and other problems that can reduce tool life and, of course, increase expenditure costs. for repair or replacement of heavy equipment. In the process of designing this alignment tool, a drive method is used in the form of a sprocket and chain, where the link between the drive motor and the shaft to be moved is the sprocket and chain method. This research serves to help produce a design by considering the user's perspective so that the design results can be useful effectively. From the test results, the gear alignment setting tool can function well with the help of an inverter so that motor rotation can be reduced and can be controlled according to the desired conditions. The previous alignment setting tool had an RPM: of 1450.8 and the alignment setting tool that was made had an RPM: of 1455.7 with a frequency of 50 Hz so it can be concluded that this tool can be used for practical work in machine repair and maintenance laboratories.
The Uji Kekuatan Tarik Komposit Epoksi Diperkuat Serat Daun Nanas (Ananas comosus) Berdasarkan Variasi Fraksi Volume Serat Boangmanalu, Eka Putra Dairi; Saragi, Jandri Fan HT; Pratama, Angga Bahri; Sahat, Sahat; Bangun, Positron
Jurnal INOVATOR Vol. 8 No. 2 (2025): Jurnal INOVATOR-On Progress
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v8i2.507

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh variasi fraksi volume serat daun nanas (10%, 20%, 30%, 40%, dan 50%) terhadap sifat tarik komposit berbasis resin epoksi. Serat daun nanas terlebih dahulu diberi perlakuan alkali menggunakan larutan NaOH 5% untuk meningkatkan kekasaran permukaan dan adhesi dengan matriks. Proses pembuatan spesimen dilakukan dengan metode hand lay-up, dan pengujian tarik mengacu pada standar ASTM D638. Hasil penelitian menunjukkan bahwa peningkatan fraksi volume serat hingga 30% menghasilkan kekuatan tarik maksimum sebesar 49,3 MPa. Nilai modulus Young juga meningkat hingga fraksi tersebut, kemudian menurun pada komposisi serat yang lebih tinggi akibat terbentuknya void dan aglomerasi serat.
Analisis Penggunaan Bahan Bakar Padat Terhadap Kebutuhan Udara Pembakaran di Dalam Furnace pada Boiler dengan Kapasitas 200 Ton/Jam Pratama, Angga Bahri; Sitorus, Rini Swandi; Saragi, Jandri Fan HT; Sitompul, Sahat; Boangmanalu, Eka Putra Dairi
Jurnal INOVATOR Vol. 8 No. 2 (2025): Jurnal INOVATOR-On Progress
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v8i2.523

Abstract

Boiler berfungsi untuk memanaskan air dengan menggunakan panas dari hasil pembakaran bahan bakar. Variabel bahan bakar yang diuji ada tiga yaitu cangkang, palm caul dan kulit kayu eucalyptus. Prosedur pengujian dibagi menjadi tiga tahap, yaitu pengujian nilai kalor bahan bakar, uji moisture bahan bakar, dan kebutuhan udara didalam furnance (ruang bakar). Analisis ini menggunakan metode observasi, Hasil pengujian nilai kalor bahan bakar kulit kayu eucalyptus adalah 10.960,25 kKal/kg, nilai kalor bahan bakar cangkang diperoleh nilai sebesar 16.747,50 kKal/kg, dan nilai kalor bahan bakar palm caul sebesar 7.978,49 kKal/kg. Hasil pengujian moisture dan kebutuhan udara didalam furnace bahan bakar kulit kayu eucalyptus adalah 10,71% dan 270.455,77 kg/jam, bahan bakar cangkang memiliki nilai sebesar 16,53% dan 393.423,92 kg/jam, serta bahan bakar palm caul memiliki nilai sebesar 36,43 % dan 210.401,56 kg/jam. Dari ketiga variabel bahan bakar yang diuji didapatkan hasil pengujian pada bahan bakar cangkang yang memiliki nilai kalor bahan bakar dan moisture (kadar air) yang baik untuk pembakaran dibandingkan dengan kedua bahan bakar lainnya.
Co-Authors Abdi Hanra Sebayang Al Qadry Al Qadry Al Qadry Al Qadry Amiruddin Amiruddin Amiruddin Amiruddin Ariksa, Jeri Arridina Susan Silitonga - Bangun, Positron Benu, Siti Maretia Bin Sahat, Ts. Harun Bin Wan Hitam, Wan Fadhilah Binti Mohd Zahar, Noor Aisyah Boangmanalu E P D Boangmanalu, Eka Putra Dairi Dairi Boangmanalu, Eka Putra Donny Fernandez Eka Putra Dairi Boangmanalu Eka Putra Dairi Boangmanalu Eka Putra Dairi Boangmanalu Fajri, Nural Ferry Fachrizal - Franklin Taruyun Hudeardo Sinaga Franklin Taruyun Hudeardo Sinaga H.Sinaga, Franklin T Hasan, Faisal Fahmi Ibrahim, Husin Islahuddin Islahuddin Jandri Fan Jeri Ariksa Kadex Widhy Wirakusuma Kadex Widhy Wirakusuma Kadriadi Kadriadi Kadriadi Kadriadi Kadriadi Kadriadi, Kadriadi Mardiana Mardiana Maretia Benu, Siti Muhammad Alfian Muhammad Alfian, Muhammad Muhammad Anhar Pulungan Opu, Agus Salim Putra Dairi Boangmanalu, Eka Putra, Eriek Aristya Pradana Qadry, Al Sahat Sahat Sahat Sahat Sahat Sitompul Sanny Ardhy Saragi J F HT Saragi, Jandri Fan HT Siahaan, Sondang Beatrix Sihar Siahaan Sinaga F T H Sinaga, Franklin Taruyun Hudeardo Sitompul, Steven Sitorus, Rini Swandi Surya Dharma Taruyun Hudeardo Sinaga, frank Tri Septiningtiyas, Dina Wagino Wawan Septiawan Damanik Welly Yandi Wirakusuma, Kadex Widhy Yandi, Welly Yudi Setiawan Yudi Siswanto Yudi Siswanto