Franklin Taruyun Hudeardo Sinaga

State University of Medan

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Eka Putra Dairi Boangmanalu

State University of Medan

Angga Bahri Pratama

State University of Medan

Al Qadry

State University of Medan

Jandri Fan HT Saragi

State University of Medan

Sahat Sahat

State University of Medan

Kadriadi

Andalas University

Wawan Septiawan Damanik

Bandung Institute of Technology

Cooperative Institutions

State University of Medan

Andalas University

University of HKBP Nommensen

Universitas Dharmas Indonesia

State University of Padang

Bandung Institute of Technology

Universitas Muhammadiyah Sumatera Utara

University of North Sumatra

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UJI KEKUATAN TARIK KOMPOSIT DENGAN PENGUAT SERAT SABUT KELAPA

SINERGI POLMED Jurnal Ilmiah Teknik Mesin (2024)

Eka Putra Dairi Boangmanalu Al Qadry Franklin Taruyun Hudeardo Sinaga Jandri Fan HT Saragi Angga Bahri Pratama

Serat dan ampas kelapa banyak dihasilkan oleh pedagang kelapa dan industry kelapa. Limbah serat kelapa tidak berbahaya karena organic dan bisa terurai. Akan tetapi limbah kelapa menjadi masalah karena kapasitas yang besar dan menjadi sampah yang kurang termanfaatkan. Atas dasar pertimbangan tersebut maka penelitan ini bertujuan untuk memanfaatkan serat sabuk kelapa sebagai salah satu solusi yang bisa digunakan sebagai new material bagi masyarakat dan industry. Penelitan ini dilaksanakan di Labolatorium Teknik Mesin Politeknik Negeri Medan dengan menggunakan mesin computer servo universal tensile machine dengan kapasitas maksimum mesin 100000 N. Matriks yang digunakan pada penelitian ini adalah resin polister yang disusun dengan serat dengan pertimbangan massa, dimensi dan diameter yang sama yang secara kontiniyu, acak dan terputus-putus. Sampel tersebut dibuat dengan komposisi fraksi volume yaitu (10:90) %, (20:80) %, (30:70) %, (40:60) %, dan (50:50) %. Matriks 50:50 % memiliki stress, strain dan modulus yang tertinggi pada pengujian kali ini. stress sebesar 14,98 MPa, strain 2,00%, beban 12.251 N dan modulus young sebesar 7,49 MPa.

10.51510/sinergipolmed.v5i1.1484

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Charpy and Izod Method Impak Strength Analysis on ST 37 Steel with Temperature Variations

Formosa Journal of Science and Technology (2023)

Eka Putra Dairi Boangmanalu Angga Bahri Pratama Al Qadry Jandri Fan HT Saragi Franklin Taruyun Hudeardo Sinaga

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

Charpy impact test

Impact energy

10.55927/fjst.v2i12.7074

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Computer Based Technical Drawing Practical Competency Training (AutoCad 2022) for Students of SMK 1 Raksana Medan

Jurnal Pengabdian Masyarakat Bestari (2023)

Sahat Sahat Jandri Fan HT Saragi Eka Putra Dairi Boangmanalu Angga Bahri Pratama Franklin Taruyun Hudeardo Sinaga

The aim of PMKM is to provide training and assistance regarding computer-based technical drawing (AutoCad) which is useful for increasing students' competence in drawing. Training and assistance in computer-based technical drawing (Auto Cad) which is useful for increasing students' competence in technical drawing as a preparation for students to enter the world of work and entrepreneurship for vocational school graduates. The method used to resolve the problems that occurred was to use a survey method at SMK 1 Raksana Medan to obtain PMKM data, then the PMKM team formulated training materials, created a training implementation schedule related to time, arranged instructors who would provide training, created activity evaluation designs. The results of implementing PMKM are: Students understand the basic introduction to using AutoCad and the basic commands used for drawing, especially drawing machine components.

Technical drawing

Vocational school

10.55927/jpmb.v2i11.6720

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Hardness Test Analysis on ST 37 Steel Plate Material and Aluminum Using the Brinell Test Method

Formosa Journal of Science and Technology (2024)

Franklin Taruyun Hudeardo Sinaga Eka Putra Dairi Boangmanalu Angga Bahri Pratama Jandri Fan HT Saragi Al Qadry

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.

Brinell scale

Vickers hardness test

10.55927/fjst.v2i12.7035

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Analisis Energi Pada Alat Desalinasi Tenaga Surya

Jurnal Rekayasa Material Manufaktur dan Energi (2023)

Jandri Fan HT Saragi Eka Putra Dairi Boangmanalu Angga Bahri Pratama Franklin Taruyun Hudeardo Sinaga Al Qadry

In recent times, many studies have been carried out on desalination systems in areas that have difficulty in obtaining clean water sources. Desalination is a method used to distill salt water or brackish water into clean water using solar power as its energy source. This desalination process is a practical alternative that can be used to offer renewable energy sources that are used to produce clean water. To perform energy analysis, the first law of thermodynamics is used as a basis. This study aims to obtain the results of the amount of energy obtained from the solar desalination system and to determine the factors that greatly affect the amount of energy obtained from the system for evaporating water. The method used in this research is an experiment by testing a solar desalination device for eight days. The results show that the highest thermal energy produced is 8.98 kWh and the lowest is 1.56 kWh, and the factors that influence the amount of thermal energy are the heat transfer coefficient and the amount of distilled water produced by the system.

Distilled water

Thermal energy

Solar Desalination

Geothermal desalination

10.30596/rmme.v6i2.15169

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Pengaruh Temperatur terhadap Kekuatan Impak pada Material Besi Nako 10 mm

Jurnal MESIL (Mesin Elektro Sipil) (2023)

Jandri Fan HT Saragi Angga Bahri Pratama Eka Putra Dairi Boangmanalu Al Qadry Franklin Taruyun Hudeardo Sinaga

Each material has a different type of toughness, such as the type of 10 mm nako iron material. In use, the material can be damaged. One of the factors that can cause damage is temperature. To find out how the effect of temperature on the material, one of the material tests was carried out, namely impact testing with the charpy method. This impact test is carried out on materials that have been given different temperature variations. There are 6 test specimens used at different temperatures. As a result, at the highest temperature, namely at 31 oC, the absorbed energy is 180.84 J with an impact price of 180.84 J/cm2 and at a low temperature, namely at 4 oC, the absorbed energy is 256.8 J with an impact price of 256 .8 J/cm2.

Charpy impact test

Impact energy

10.53695/jm.v4i1.886

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Analisis Efisiensi dan Efektifitas Laju Perpindahan Panas pada Alat Heat Exchanger tipe Double Pipe dengan Aliran Searah

Jurnal MESIL (Mesin Elektro Sipil) (2024)

Angga Bahri Pratama Al Qadry Jandri Fan HT Saragi Eka Putra Dairi Boangmanalu Franklin Taruyun Hudeardo Sinaga

Double pipe heat exchangers have been widely used in various fields, one of which is in the industrial. The design of this heat exchanger has undergone many changes and modifications. This aims to get efficiency and effectiveness so that it can achieve maximum work on the tool. The focus of this research is to calculate and analyze the efficiency and effectiveness of the rate of heat transfer in a double pipe type heat exchanger with unidirectional flow. The data collection method was direct observation of the device, with an interval of two minutes for each test. The results of this study indicate that the effect of time variation on Vh = ±700 l/h, Vc = ±500 l/h fixed on the double pipe type, it can be concluded, at 2 minutes with Vh = ±700 l/h, efficiency is obtained 1.46% and effectiveness = 0.476. The longer the time in data retrieval, the efficiency increases. This can be seen in the table of research results, at 8 minutes Vh = ±700 l/h, efficiency = 1.478% and effectiveness = 0.919.

10.53695/jm.v4i2.890

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Pelatihan dan Pendampingan Teknik Pengelasan sebagai Upaya Peningkatan Kemampuan Praktik Siswa SMK Samudera Indonesia Medan

ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) (2023)

Jandri Fan HT Saragi Eka Putra Dairi Boangmanalu Angga Bahri Pratama Al Qadry Franklin Taruyun Hudeardo Sinaga

The purpose of this PkM is to provide training and assistance regarding basic welding techniques that are useful for increasing student competence in welding. This training and mentoring in welding techniques serves as a provision for students to enter the world of work and entrepreneurship for SMK graduates as well as assisting the productive process of SMK students who lack funds and practicum facilities to improve their competence in the field of welding. The method used to solve the problems that occur is to use the survey method at SMK to obtain PkM data as needed, formulate training materials, schedule time-related training implementations, arrange instructors who will provide training, make activity evaluation designs, carry out training and mentoring activities Welding techniques were attended by students of SMK Samudra Indonesia, welding teachers, students and lecturers of Mechanical Engineering at the Medan State Polytechnic. The results of the PkM implementation are as follows: Welding skills that can equip SMK students to enter the world of work are being able to operate a welding machine properly and being able to connect plates using welding. The responses from SMK students who took part in the training and assistance from the Medan State Polytechnic Mechanical Engineering Study Program were as follows: they were happy because they had acquired welding skills that they had not mastered to their full potential and the teachers hoped that next year they could continue with other programs.

Practicum

10.53695/jas.v4i2.887

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