Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

2.165

P-Index

This Author published in this journals

All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Rekayasa Material, Manufaktur & Energi Hasil Pengabdian Kepada Masyarakat JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Madani dan Lestari (JAMALI) Jurnal MESIL (Mesin Elektro Sipil) Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI) Sisfo: Jurnal Ilmiah Sistem Informasi Jurnal Polimesin

Muharnif M

Fakultas Teknik Universitas Muhammadiyah Sumatera Utara Jalan Kapten Muchtar Basri No.3 Medan 20238, Indonesia

Author-ID : 3933958

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 20 Documents Claim Missing Document

Claim Missing Document

Articles

Title

Pengaruh Diameter Lubang Pembangkit Vorteks Winglet Melengkung Terhadap Unjuk Kerja Apk Tipe Kompak Studi Eksperimental K.Umurani K.Umurani; Muharnif M.
Rekayasa Material, Manufaktur dan Energi Vol 2, No 1: Maret 2019
Publisher : Fakultas Teknik UMSU

Alat Penukar Kalor (APK) tipe kompak yang memiliki unjuk kerja yang optimal, yaitu perpindahan kalor yang maksimal dan penurunan tekanan yang minimal dengan volume konstruksi APK yang kecil dan ringan dengan memvariasikan diameter lubang pembangkit vorteks winglet melengkung berlubang terhadap unjuk kerja apk tipe kompak melalui studi eksperimental sehingga diperoleh penyerapan kalor yang maksimal dan efektifitas APK tipe kompak yang ditunjukan oleh koefisien perpindahan kalor dan mendapatkan penurunan tekanan total dan koefisein gesek yang terkait dengan desain pembangkit vorteks winglet melengkung berlubang. Model uji terdiri dari 12 pelat aluminium paralel dengan ukuran 300 mm x 300 dan 12 mm jarak antar sirip . Percobaan dilakukan dengan sejumlah pasangan pembangkit vorteks yang memiliki variasi diameter. Eksperiment dilakukan di terowongan angin dimana APK dipanaskan oleh air panas aliran silang (cross-flow). Udara yang dialirkan oleh blower, melewati generator vortex terpasang di bagian sirip aluminium. Seluruh data pengujian akan direkam setiap 3 detik dengan Arduino PLX Data Acquisition yang dihubungkan ke Laptop. Dalam penelitian ini sudut serangan dijaga konstan,β = 45, Dengan variasi diameter lubang pada pembangkit vorteks. Dari hasil pengujian alat penukar kalor terlihat bahwasanya alat-alat yang dibuat berkerja sesuai dengan yang diharapkan Winglet dengan lubang memiliki pengaruh dalam membuat aliran udara menjadi bergolak sehingga meningkatkan penyerapan kalor oleh udara. Pada penelitian ini terlihat bahwa diameter winglet sebesar 6 mm memberikan pengaruh yang baik dalam peningkatan penyerapan kalor dan juga penurunan tekanan yang relatif lebih rendah

Analisa Pengujian Lelah Material Stainless Steel 304 Dengan Menggunakan Rotary Bending Fatigue Machine Muharnif M; Randy Septiawan
Rekayasa Material, Manufaktur dan Energi Vol 1, No 1: September 2018
Publisher : Fakultas Teknik UMSU

Rotary Bending Fatigue is a test tool to determine the limits of fatigue that occur in material, where fatigue occurs due to loading. Fracture occurs because when the material has undergone a stress cycle that produces permanent damage as a process of changing the permanent structure at one point crack (crack) is done by varying loading, namely: 10kg load produces a voltage of 34.226 Mpa, Cycle 125321 within 123, 37 minutes . At 15kg load produces a voltage of 51.333 Mpa, Cycle110597 in 125.54 minutes. At 20kg load produces a voltage of 68.452 Mpa, Cycle 54527 in 32.37 minutes. At 25kg load produces a voltage of 85.565 Mpa, Cycle 28638 in time of 22.01. At 30kg load produces a 102.6786 Mpa Voltage, 19711 Cycle in 17.57 minutes. With the following conclusions, fatigue resistance in 304 Stainless Steel decreases with increasing voltage given.

Analisis Kesetimbangan Massa Dan Rendemen Pada Sistem Distilasi Daun Nilam Menjadi Minyak Atsiri Mukhtar, Muharnif; Lubis, Riadini Wanty; ., Suherman; Mariono, Nanang Pat Sumantri
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.14504

Indonesia is one of the largest essential oil producing countries in the world and is supported by natural resources with climatic conditions, soil and plant species that are very suitable for the growth of patchouli plants. The use of essential oils today is not only as a raw material for fragrances and cosmetics but also in the health sector. One of the basic ingredients for producing essential oils is patchouli. The main thing that needs to be considered in the processing of this essential patchouli oil is the yield it produces. This study aims to analyze the mass balance and yield in the processing of patchouli essential oil in a distillation system with 5kg, 4kg, 3kg patchouli leaf raw material variations. Distillation of patchouli leaves was carried out using the steam and water distillation method with a temperature in the kettle not exceeding 100 oC for 6 hours. The main variables in the processing of patchouli leaves into essential oil are distillation efficiency and the yield obtained. The more mass of patchouli leaves used, the more it will increase the distillation efficiency of 79.7%, 82.1% and 82.4% as well as the yield of the resulting oil increased 1.67%, 1.7% and 1.78%

Analisis Termoelektrik Generator (TEG ) Sebagai Pembangkit Listrik Bersekala Kecil Terhadap Perbedaan Temperatur M, Muharnif; Umuani, Khairul; Nasution, Firman AlwiArif
Rekayasa Material, Manufaktur dan Energi Vol 5, No 1: Maret 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i1.10260

Electrical energy has now become a major need for the community, so it is necessary to develop alternative sources of electrical energy that are environmentally, not only on a large scale but also on a small scale. Thermoelectric Generator is a power plant that works based on the Seebeck effect, where the temperature difference between the hot and cold surfaces of these 2 electronic components is converted into electrical energy on a small scale. This study aims to analyze the effect of temperature differences that occur on the electrical energy produced in a thermoelectric. This research was studied by comparing the difference in heat generated from 1, 2 and 3 candles with Peltier elements connected in series to the power and efficiency produced with a time duration of 120 seconds. Based on thos research, it shown that this thermoelectric generator is capable to producing 0.01200 Watt with a temperature difference of 10 oC for 1 candle, and producing 0.02920 Watt with a 12 oC temperature for 2 candles and generating 0.04107 Watt with a temperature difference of 14 oC for 3 candles. While the resulting efficiency is 0.033%, 0.057% and 0.092% each using 1, 2 and 3 candles for 120 seconds.

Analisis Kinerja Motor Bakar Berbahan Bakar Campuran Pertalite Dan Bioetanol Dari Sampah Organik Mukhtar, Muharnif; A, Arfis; Febrian, Muhammad Kevin; Refan, Mahammad
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.18015

The increasing availability of fossil fuels and high emissions from combustion which have an impact on global warming has continued to emerge in recent years. One solution to this problem is the use of alternative fuel sourced from organic waste to become bioethanol fuel. The use of bioethanol as a fuel mixed with pertalite is expected to reduce consumption and dependence on fossil fuels. This research aims to analyze the effect of a mixture of biethanol and pertalite on the performance of a 150 cc 4 stroke of SI Engine. The test method was carried out by analyzing torque, power and specific fuel consumption using a mixture of pertalite and bioethanol 10% (PB10), 20% (PB20) and 30% (PB3) as well as 100% pertalite wiith a rotation variations of 5000 – 9000 rpm. The results of research performance show that there is an increase in torque and power with the addition of bioethanol into pertalite. Specific fuel consumption will decrease as the percentage of bioethanol mixed with pertalite fuel increases

Pembuatan Cetak Paving Block Berbahan Plastik Dan Pasir Siagian, Nusyirwan Said; Siregar, Ahmad Marabdi; Mukhtar, Muharnif; Siregar, Chandra Amirsyahputra
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.12404

Plastic is a synthetic polymerization product material, plastic is very difficult to decompose where the degradation of the plastic itself usually takes decades by nature. According to the Ministry of Environment and Health and the Ministry of Industry, the amount of waste in 2016 reached 6.25 million tons per year. This makes plastic waste one of the causes of environmental pollution. Recycling plastic waste is a solution to the problem of plastic waste which is increasingly polluting the environment. Realizing the importance of plastic recycling. Then a recycling tool will be made or changing the shape of plastic to be more useful, such as recycling plastic into paving blocks. Recycling plastic waste into paving blocks is expected to be a solution to environmental pollution due to plastic waste. Therefore a paving block printing tool made from plastic and sand is designed and produced which can reach a temperature of 397 0C, the paving block printing machine can make paving blocks made from PVC (Polyvinyl Chloride) plastic waste or plastic pipes. This tool can melt as much as 1.2 kg of plastic waste, namely 1 (one) paving block made from plastic waste and sand. The resulting paving blocks are in the form of bricks with sizes according to SNI Number 03-0691-1998 with dimensions of 10 cm x 20 cm x 6 cm.

Pembuatan Alat Pelipat Baju Otomatis Berbasis Arduino Uno Untuk UMKM Laundry Umurani, Khairul; Rahmatullah, Rahmatullah; Muharnif, M.; Asfiati, Sri; Sandi, Didik Mei
Rekayasa Material, Manufaktur dan Energi Vol 8, No 1: Januari 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i1.22371

Laundry workers are required to be able to fold quite a lot of clothes in a fairly short time and neatly. Based on this, an innovation is needed in terms of folding clothes that can help household chores and the UMKM scale laundry industry in terms of folding clothes. The main aim of the research is to create an Arduino-based automatic clothes folding device. Arduino Uno is a microcontroller that is often used in making prototypes of electronic circuits which are useful for making things easier for users. Making an Arduino-based module requires a circuit schematic which is useful for making things easier when making tools. Electronic circuit schematics are needed as a guide in making electronic circuits. The electronic circuit schematic should be designed or drafted first before carrying out the process of making the electronic circuit. Testing of this servo motor is carried out by starting the rotation of the servo motor from an angle of 0⁰ to a rotation of 180⁰. The test results can be concluded that the three servo motors used are in good condition. Having an automatic clothes folding tool can help with daily housework and help laundry entrepreneurs in folding clothes neatly, saving time and energy. The time required to fold a short-sleeved t-shirt is 3.56 seconds and a short-sleeved shirt is 3.66 seconds

Co-Authors A M Siregar A, Arfis Abdullah, Ilmi Ahmad Marabdi Siregar Ali, Rizki M Asfiati, Sri Aulia, Rakha Ramdan Dewi Andriany Febrian, Muhammad Kevin Hadriman Khair hutasuhut, abdul azis IRMA DEWI K Umurani K.Umurani K.Umurani Lubis, Riadini Wanty Lubis, Yusuf M Yani M Yani Mariono, Nanang Pat Sumantri Marzuki Marzuki Mutia Arda, Mutia Nasution, Elvy Sahnur Nasution, Firman AlwiArif Nikmal, Nikmal Nurzanah, Wiwin Pane, Yunita Pohan, Muhammad Ade syahputra Rahmatullah Rahmatullah Kasim Rahmatullah Rahmatullah Randy Septiawan Refan, Mahammad Rimbawati Sandi, Didik Mei Siagian, Nusyirwan Said Siregar, Chandra Amirsyahputra Suherman Suherman ., Suherman Suherman, Suherman Suroso, Bekti Umuani, Khairul Umurani, Khairul Wan Hamzah, Azmi Zogner Halawa, Kevin

Title Search

Found 7 Documents Search Journal : Jurnal Rekayasa Material, Manufaktur

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search
Journal : Jurnal Rekayasa Material, Manufaktur