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INDONESIA
JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY
Published by Universitas Medan Area
ISSN : 25496220     EISSN : 25496239     DOI : -
Core Subject : Science, Engineering,
Energy Industrial & Manufacturing Engineering Mechanical Engineering
This journal is a publication media of research results in the field of machinery that has been carried out by academics or practitioners by following predetermined rules. The research areas include: manufacturing, engineering materials, energy conversion and renewable energy, as well as other machinery fields, such as: mechatronics, hydraulics, plantation tools, and engine maintenance management systems. Each paper that has been sent will be reviewed by a team of experts in their field, and published online through the http://ojs.uma.ac.id/index.php/jmemme url address. This journal was founded in 2017 and has been registered with a print version of ISSN 2549-6220 and the online version of ISSN 2549-6239.
Arjuna Subject : -
Articles 153 Documents
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Analisis Pengaruh Panas dan Beban terhadap Kerusakan Traveling Grate pada Boiler Di PLTU Tembilahan 2x7 MW Sandi Saputra; Siswo Pranoto; Yopan Rahmad Aldori; Syurkarni Ali; Junaidi; Andri Herlambang; Muhammad Yusuf Rahmansyah Siahaan; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6094

Abstract

Rack grate is a component composed of rack clip and rack bone arrangement that serves as a dropping cross-section media of coal and as a media of coal burned in the boiler.  As part of the main component, the rack grate can be regarded as one of the components that ensure the success of combustion in the boiler. Failure to this component will certainly interfere with the implementation of boiler operations. In addition to require the boiler to be shut down while repaired, in addition to requiring the boiler to be extinguished during repairs, the inoperability of the boiler makes the steam production process at the PLTU impossible and ultimately the electricity generation process cannot be carried out as usual. Damage to the rack grate component has a type of plastic deformation with variable loads and fluctuating heat, which means that the thermal stress in the system has reached the yield stress point. To find out the root cause of this component damage quickly and accurately, an analysis of the results of the implementation of engineering software in this case Ansys Workbench, and a comparison of actual operating data, and data design is the best choice. Lastly, by evaluating the optimum values of temperature, equivalent stress and strain, total deformation, input process parameters value can be controlled to the desired values, resulting in less stress concentration occurs, so that the damage to the workpiece can be reduced or even eliminated.
Perancangan Alat Uji Tarik Universal Statis dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN Parulian Malau; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6157

Abstract

In this paper, the author discusses the process of designing static universal tensile test equipment suitable for the laboratory scale of the material. The design presents data on customer expectations and embodiment analysis of the design of the tensile testing machine. This study aims to design a tensile testing machine, choose a match in making a tensile testing machine design following customer expectations, and analyze the embodiment of the design of the tensile testing machine. This research uses quantitative methods using surveys or questionnaires distributed to the research sub-project. The results of this tensile testing machine questionnaire survey are processed into research data which translates into engineering needs and its development into the tool design concept. The result of this study is the design and specifications of the tensile testing machine with a servomotor drive. The tensile testing machine has been successfully designed and works well and has met customers' needs.
Pembuatan Alat Uji Tarik Universal Statis Dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN Feberius Gea; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6173

Abstract

Tensile test is one of several tests that are commonly used to determine the mechanical properties of a material. The purpose of this research is to build and assemble products according to customer needs and to be able to analyze the process of making a static universal tensile tester with a servomotor drive with a capacity of 1 kN. It is hoped that this research can facilitate the selection of raw materials in providing information about the materials to be used and used. This tensile test equipment with a capacity of 1 kN uses a servomotor as the main driver. This type has begun to be used in the world because it is simpler than other motors, so this tool can compete with tensile test equipment sold in the market. This tool is equipped with supporting components such as a load cell, encoder and control panel using a data cable so that it gets graphic results when testing using visual studio software.
Analisis Pengaruh Tinggi Hisap Pompa Sentrifugal Terhadap Kapasitas Dan Efisiensi Pompa Muhammad Abdul Rasyid; Din Aswan A Ritonga; Yopan Rahmad Aldori; Sukmawati; Erni Yusnita; Etanto Heiliano Wijayanto; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6189

Abstract

Pompa adalah peralatan mekanis untuk meningkatkan energi tenakan pada cairan(fluida) yang dipompa dengan mengubah energi mekanis poros penggerak menjadi energi potensial dan energi kinetis fluida. Seiring berkembangnya teknologi, pompa digunakan diberbagai bidang termasuk pemakaiannya dalam bidang indsutri. Pompa Sentrifugal merupakan salah satu jenis pompa yang mempunyai lingkup penggunaan yang sangat luas terkait dengan head dan kapasitas yang dihasilkan. Pada kesempatan ini penulis mencoba memaparkan hasil penelitian tentang unjuk kerja pompa sentrifugal bila dilakukan variasi tinggi hisap pada pompa sentrifugal akan mempengaruhi kapasitas, Head, Daya Hidraulis dan effesiensi pompa sentrifugal. Variasi tinggi hisap dimaksudkan untuk mengetahui peningkatan performance pompa yang terjadi akibat penambahan tinggi hisap pompa. Menambah tinggi hisap pompa sangat berpengaruh terhadap kapasitas aliran air yang dihasilkan, hal ini juga akan mempengaruhi kerja pompa, kecepatan spesifik, daya dan efesiensi pompa. Sehingga dapat diperoleh titik kerja tertinggi pompa sentrifugal dengan Kapasitas (Q) 0,001180 m3/s, Head (H) 6,066 m, Daya Hidraulis (Ph) 70,008 watt, Effesiensi (ɳp) 26,51 %, hal ini dapat terlaksana bila diikuti penambahan daya dari motor penggeraknya.
Analisis Pembangkit Listrik Termoelektrik Generator Diradiasi Oleh Panas Matahari Felix Sigalingging; Weriono Weriono; Muhammad Idris; Indra Hermawan; Darianto; Amru Siregar
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 1 (2023): Edisi Juni 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i1.6191

Abstract

Pemanfaatan Energi terbarukan yaitu Energi Panas Matahari ( Solar Cell) yang dipakai berbagai maanfaat mulai dari solar cell, pencahayaan tenaga surya, pemanas ruangan cahaya, dan juga pemanfaatan pada termoelektrik. Di penelitian ini pemanfaatan energi panas matahari yaitu sumber panas. Pengertian termoleketrik adalah suatu perangkat yang mengubah energi kalor (akibat dari perbedaan temperatur panas dan temperatur dingin) menjadi energi listrik. Penelitian ini mengggunakan satu buah heatsing 10 sirip dan 6 buah termoelektrik dan juga ada tambahan perbandingan elemen panas yaitu plat baja. Berdasarkan hal itu, maka pengerjaan tugas akhir ini merancang dan menganalisis pembangkit emergi lstrik sederhana dengan memanfaatkan energi panas matahari dengan metode ternoelektrik. Berdasarkan hasil percobaan selama 3600s menghasilkan yang tanpa menggunakan plat baja tegangan 0.17 V, arus 0.008 A dan daya 0.00141 W, dan menggunakan plat baja tegangan 0.31 V, arus 0.009 dan daya 0.00305 W.
Pengaruh Penambahan Ukuran Tebal Pipa Air Heater Terhadap Efisiensi Termal Serta Konsumsi Bahan Bakar Pada Boiler PT. Socimas Kapasitas 50T/H Recsi Febian Adiansyah; Derlini; Din Aswan A Ritonga; Yopan Rahmad Aldori; Pratiwi Putri Lestari; Fider Lumbanbatu; Etanto Heiliano Wijayanto; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6193

Abstract

PLTU PT. Socimas saat ini menggunakan  air heater tipe tubular untuk mendukung dan meningkatkan kan produktivitas dari boiler. Penggunaan air heater ini menimbulkan permasalahan baru pada penggunaan air  preheater tipe tubular dengan terjadinya kebocoran pada pipa di dalam air heater. Kerusakan ini  terjadiakibat dari terjadinya gesekan flue gas yang terjadi di secara terus menerus kerusakan ini menyebabkan kurang maksimalnya  penggunaan  air heaterterhadap boiler . kerusakan ini Menyebabkan perusahaan mengganti tebal pipa  air heater, dengan adanya permasalahan ini, penulis mencoba untuk mengetahui efisiensi air heatersetelah terjadinya penggantian pipa dengan diameter awal 35mm dengan tebal 2,5mm didapatkan laju perpindahan panas konveksi aliran dalam sebesar 62547,7 J/s, konduksi sebesar 127530,49 J/s, konveksi aliran luar sebesar 1242750,13 J/s. Setelah terjadi perubahan diameter 37mm dengan tebal 3,5mm didapatkan laju perpindahan panas konveksi aliran dalam sebesar 69142,4 J/s, konduksi sebesar 113825,46 J/s, konveksi aliran luar sebesar 1711397,46 J/s. Setelah laju perpindahan panas diketahui maka penulis membandingkan efisiensi air heater pra penggantian sebesar 52,07% dengan air heater pasca penggantian sebesar 67,66% maka didapatkan selisih penghematan bahan bakar batubara sebesar 67,347 kg/ hari.
Perancangan Alat Uji Impak Anak Panah Jatuh Bebas untuk Menguji Lembaran Plastik dengan Kapasitas 120 gr Goodman Pakpahan; Muhammad Yusuf Rahmansyah Siahaan; Rakhmad Arief Siregar
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 1 (2023): Edisi Juni 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i1.6295

Abstract

Pengujian impak merupakan suatu pengujian untuk mengukur ketahanan bahan terhadap beban kejut (dinamis). Pengujian impak mensimulasikan kondisi operasi material yang sering ditemui dimana beban tidak selamanya terjadi secara perlahan-lahan melainkan datang secara tiba-tiba. Alat uji impak yang akan dirancang dalam penelitian ini merupakan alat uji impak jatuh bebas. Alat uji impak ini memanfaatkan massa benda serta gaya gravitasi. Pengujian ini bertujuan untuk menganalisa pengaruh pembebanan impak jatuh bebas pada plastik yang dijatuhkan dari ke tinggian 0.66 m. Langkah yang dilakukan dalam penelitian ini meliputi pengujian dan pengambilan data untuk mengetahui energi yang diserap, harga impak, momentum, implus dan ketangguhan pada material baja struktur saat diberi beban kejut. Pada pengujian impak jatuh bebas ini, mempunyai jarak dan berat beban yaitu pada beban (m) = 30, 45, 60 gr dengan jarak ketinggian (h) = 0.66 m.
Identifikasi Getaran Mekanis Thrust Bearing Pompa Sulzer Bingham yang Mengalami Kegagalan Weriono; Adi Isra; Nazaruddin
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6366

Abstract

Thrust bearing yang berfungsi mendukung gaya-gaya yang terjadi pada  pompa Sulzer Bingham Type 8 x 10 x 13 MSD – D 3 Stage akan mengalami kerusakan berakibat kegagalan pula pada komponen lain. Perubahan sifat mekanik disebabkan oleh kondisi pembebanan yang tidak baik, seperti terjadinya kondisi unbalanced dan poros yang tidak sesumbu (missalignment) menimbulakan getaran.Metode yang diterapkan dalam pengujian melalui pendekatan analisis kerusakan thrust bearing 7310 BECBM. Data kerusakan thrust bearing 7310 BECBM didapatkan  frekuensi vibrasi, dan intensitas kebisingan akan dilakukan pengolahan data menggunakan pendekatan frekuensi vibrasi dalam bentuk frekuensi domain menggunakan bantuan software MATLAB.Data pengamatan thrust bearing 7310 BECBM pada 0 – 1225 jam tidak menunjukkan indikasi kegagalan dan indikasi kegagalan ditemukan pada 1663 jam. kerusakan thrust bearing dalam arah horizontal disebabkan oleh kondisi unbalanced. Spektrum vibrasi dalam domain frekuensi terhadap thrust bearing arah vertikal ditunjukkan pada Gambar 7. kerusakan thrust bearing arah vertikal disebabkan oleh fenomena bent shaft atau ketidaklurusan sumbu poros. Frekuensi vibrasi thrust bearing 7310 BECBM arah horizontal lebih tinggi dibandingkan frekuensi vibrasi arah vertikal dan aksial. Komponen cage bearing memiliki sifat kekerasan yang rendah dibandingkan komponen lainnya sehingga cage bearing akan lebih cepat mengalami kerusakan.
Perancangan Sepatu Kuda Berbahan Dasar Polymeric Foam dan Diperkuat dengan Fiber Glass Fider Lumbanbatu; Surya Irawan; Khairuddin Tampubolon
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6707

Abstract

This study aims to obtain the best design and material for horseshoes. The research method used is experimental and research target design. This research was conducted in Medan and most of the experiments were conducted at USU University Medan. The results of this research are: it is known that horse shoes will be better if they are made using polymeric foam and reinforced with glass fiber. Furthermore, it was found that other advantages of horseshoe material made of polymeric foam reinforced fiberglass when compared to low carbon mild steel A 36 material, namely: a) Light weight, so it does not burden the horse's feet. b) Flexible, so it can adjust to the horse's hooves. c) Soft, so it can reduce the risk of injury. Horseshoe made of iron, when the horse is moving, if it hits a hard surface, it can cause a reaction force that over time can damage the horse's hooves, the joints of the horse's legs and even the horse's feet, if used for a long time. d) Resistant to chemicals found in the horse's environment, for example horse urine contained in horse stables, where horse urine contains ammonia, and is mixed with other harmful substances. e) Not slippery, thus preventing the horse from slipping and reducing the risk of injury.
Analisis Pengaruh Bio Additive Pada Bahan Bakar Terhadap Unjuk Kerja Mesin 4 Langkah Poppy Aprilya Sitorus; Rahmatullah Rahmatullah; Darianto Darianto; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6869

Abstract

Bioadditives are elements derived from plants that are used as additives to improve fuel quality. Citronella oil is one type of essential oil that has been studied for its potential as a fuel bio additive because of its volatility and ability to dissolve into fuel. The purpose of using this bioadditive is to increase engine performance. This research was conducted using an experimental method, some of the samples tested consisted of pertalite fuel, bioethanol then the development was carried out by adding the Bioadditive element citronella oil to the fuel with a ratio of 2,0 : 1000 ml, 3,0 : 1000 ml, and 3,5 : 1000 ml. The sample test was aimed to measure engine performance using a dynamometer. The results of this study show that the use of citronella bioadditives can improve motorcycle performance, the maximum power increases by 55% at a ratio of 2,0 : 1000 ml, and the optimum torque is achieved by 39% at a ratio of 2,0 : 1000 ml. In addition to these tests, measurement of fuel consumption is also carried out by producing a savings of 10%, using a ratio of 2,0 : 1000 ml.

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