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Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi

jmekanova
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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 9 Documents

Search results for , issue "Vol 7, No 1 (2021): April" : 9 Documents clear

Analisis Penyebab Cacat Cekung Profil Aluminium Bangladesh Window Dengan Metode FMEA Murwan Widyantoro
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Quality control is a necessary requirement to keep the business running. By maintaining product quality there will be continuous business. PT.XYZ is a company engaged in manufacturing aluminum products. One of the products produced is the Bangladesh aluminum window profile. Currently, the production of Bangladesh window aluminum profiles is still often defective. This study aims to determine the root cause of the failure that occurred in the Bangladesh window aluminum profile product. The number of defects that occur is on the concave surface type with the results of the analysis using fish bone and the number of values of Severity 10, Occurance 10 and detection value 10. The results of FMEA calculations are 7 failures that occur, namely at the highest rank with a value of 120 by the state of the die draw surface. less evenly on the inside resulting in a concave-shaped aluminum profile.

Analysis Thermal Pada Solid dan Ventilated Disk Brake Pada Mobil Hemat Energy Pagaruyuang Team UNP Wanda Afnison; Wagino Wagino; Nuzul Hidayat; Muslim Muslim; Masykur Masykur
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

This study discusses the thermal analysis of the disc brakes used in UNP energy-efficient cars. There are three types of disc brake designs that are simulated, namely solid disc brake, circular hole ventilated and vane ventilated types. Using the finite element method, the three disc brake designs analyzed the characteristics of the heat received from the braking process. Disc brakes with better heat dissipation ability are the most suitable type to use. From the simulation results, the ventilated (circular hole) disc brakes have the best heat dissipation capability with a maximum temperature of 635,520 K, lower than the vane and solid types where the maximum is obtained. temperatures of 5700 K and 809.50 K . The vane type disc brake design is a disc brake design with the worst heat dissipation capability which has the highest final temperature of 809.50 K.Keywords—Thermal analysis, disk brake, heat, high efficiency vehicle

RANCANG BANGUN PROPELLER TURBIN ANGIN SUMBU VERTICAL BERBAHAN DASAR KOMPOSIT FIBERGLASS (GFRP) TA Nizardi; syurkarni ali; Zakir Husin; Mahmuddin Marbun
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

The wind energy as an alternative in the use of renewable energy has the potential to increase income for the capital, where the potential for wind in the area of Meulaboh, west Aceh, which is 11 km/h, on average can be used for electrical energy needs specially for low wind turbine power, This is research is designing and manufacturing wind turbine propellers. Wind type Lenz cupped type, the number of propellers as much as 3 (three) pieces. The design method is carried out by using Sketch Up software, the final result is in the form of a 3-D image and in the manufacturing process method is making the wind turbine propeller with the method hand lay up for the materials using are fiberglass as a matrix and resin as a reinforcement or known as composite materials. And to obtain the results, a test was carried out in the form of a propeller ability test in driving a generator. With the generator output was 100 W. The test was carried out at the location of Teuku Umar University in an integrated building, precisely on the rooftop with a height of build ± 50m. On the sea level. The results obtained after testing the wind speed amounted to 18.4 mph. average during testing 3 (three) days, and the average results of the propeller turbine rotation of 39.8 rpm. Key words: wind energy, energy alternative, composite materials, hand lay up, wind speed, propeller turbine rotation

Uji Kebisingan pada Motor Listrik dan Tabung Sentifugal Mesin Produksi Santan Kapasitas 10 Liter Per Jam Herdi Susanto; Al Munawir; Herri Darsan
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Noise standards on a machine are very important to consider before the machine is produced, because it can cause discomfort to the operator and damage hearing function. The noise standard has been set by OSHA, the maximum noise threshold value of 85 dB is considered safe for most workers when working 8 hours / day. The coconut milk production machine with a capacity of 10 liters per hour was carried out by measuring the noise level which aims to determine whether the machine meets the noise standard criteria. The test was carried out at three levels of motor rotation, namely 1000 rpm, 1500 rpm, 2000 rpm with a noise measuring distance of 0.5 meters from the component parts of the electric motor and centrifugal tube using a sound level meter. The results of measurements of noise levels on electric motors and centrifugal tubes of coconut milk production machines with a capacity of 10 liters per hour can be concluded that the noise level value of the production machine meets the noise standard level required by OSHA 1978, where the maximum production machine noise level is at 75 dB while that which is implied by OSHA 1978 maximum is at 85 dB. Keywords— OSHA standards, electric motor, centrifugal tube, noise test

Uji Getaran Rangka Tabung Sentrifugal Mesin Produksi Santan Kapasitas 10 Liter Per Jam Herdi Susanto; Syurkarni Ali; Sulaiman Ali; M Khalil
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Abstract Coconut plantations reach more than 106 hectares of the 831 thousand hectares of plantation areas in Aceh. Meanwhile, the total production reached 63 thousand tons with a productivity level of 818 kilograms per hectare. Most of it is still traditionally produced to produce coconut milk from these coconuts. The design of the coconut milk production machine has been carried out and before it is used a vibration test must be carried out to determine the operational feasibility of the machine. This study aims to measure the vibration level of the centrifugal tube frame for the coconut milk production machine with a centrifugal system capacity of 10 L / hour. The test was carried out at three levels of motor rotation, namely 1000 rpm, 1500 rpm and 2000 rpm with repeated measurements carried out five times at each motor rotation speed, the measurement results were compared with ISO 2631-1 standards and Kepmenaker number KEP-51 / MEN / I999. The results showed that testing the vibration of a coconut milk production machine with a centrifugal system with a capacity of 10 L / hour stated that it was safe if it was operated for less than 4 hours for a motor rotating speed of 1000 rpm, for a motor rotating speed of 1500 rpm it was safe to use if it was operated for less than 3 hours, while for rotation 2000 rpm motor is good and comfortable to use for less than 2 hours. Keywords— centrifugal tube, coconut squeezer, SO 2631-1, KEP–51/MEN/I999

Pengaruh Penggunaan Oli Bekas Sebagai Bahan Bakar Terhadap SFC dan Efisiensi Termal Mesin Diesel Ahmad Arif; Nuzul Hidayat; Wawan Purwanto; M. Yasep Setiawan; Masykur Masykur
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Minyak pelumas (oli) berfungsi sebagai pelapis, pembersih, pendingin dan pencegah gesekan langsung antar komponen di dalam mesin. Setelah dipakai, kualitas oli menjadi berkurang sehingga disebut oli bekas. Oli bekas merupakan campuran hidrokarbon kental ditambah berbagai bahan kimia aditif. Sumber oli bekas yang melimpah perlu ditangani dengan cepat, tepat dan praktis. Oli bekas masih mengandung energi yang cukup tinggi, dan masih berpotensi menjadi bahan bakar. Sampai saat ini, penanganan terhadap oli bekas yang telah dilakukan diantaranya adalah proses daur ulang dan dijadikan campuran bahan bakar hidrokarbon. Oleh sebab itu, maka perlu dicari cara untuk memanfaatkan oli bekas sebagai bahan bakar dengan proses yang mudah dan murah dan dapat menjadi bahan bakar alternatif mesin diesel sehingga lebih ekonomis. Penelitian ini bertujuan untuk mengetahui SFC dan efisiensi termal mesin diesel dengan menggunakan oli bekas sebagai bahan bakar. Penelitian ini dilakukan secara eksperimental dengan mengatur campuran bahan bakar solar dan oli bekas. Metode yang digunakan untuk mengetahui SFC dan thermal efficiency yang optimal adalah dengan mencampur bahan bakar solar dengan oli bekas 20%-100% dengan interval 20%. Pengujian dilakukan pada mesin diesel Yanmar TF150MR yang dikopel electrical generator dengan putaran mesin konstan 1500 rpm dan pembebanan 500-5000 watt dengan interval 500 watt. Hasil penelitian menunjukkan bahwa campuran bahan bakar solar dan oli bekas yang paling optimal adalah 40%:60%. Hal ini dibuktikan dengan SFC rata-rata terendah 0,537 kg/hp.jam dan efisiensi termal rata-rata tertinggi 16,82%. Penggunaan bahan bakar campuran solar dan oli bekas 40%:60% juga dapat menghemat/menggantikan bahan bakar solar 60%.

Studi Numerik Pengaruh Sudut Kemiringan Sudu Terhadap Performa Turbin Angin Vertikal Tipe Savonius Masykur Masykur; Andre Kurniadi; Maidi Saputra; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

AbstractWind energy is a renewable energy source that can be felt in everyday life. To convert wind energy into electrical energy, a tool is needed that is a wind turbine. Horizontal Axis Wind Turbine is more widely used and developed today than the vertical type wind turbine. However, the vertical turbine has several advantages compared to the horizontal wind turbine, which is that it can move without depending on the direction of the wind. This study aims to determine the effect of tilt angel of savonius turbine with blades angle 30°, 60° and 90° the turbine power coefficient and determine the optimal turbine blade results in designing a Vertical wind turbine by simulation using Computational Fluid Dynamics (CFD). The variations used are tilt angel turbine blades is 30°, 60°, 90°. The results showed that the value of Cp (Power Coefficient) of wind turbines with the addition of the blade angel 30°, 60° and 90° had a different increase. The variation the addition of turbine blade tilt angle with 90° tilt angle can increase the efficiency of the turbine blade when compared 30°, 60° blade inclination this is evidenced by wind turbine speed contour analysis, wind vortex contour analysis and turbulence intensity contour analysis shows that the turbine blade simulation results with a slope of 90° has an efficient turbine blade that is very good and effective and get optimal results.Keywords: Wind turbine, VAWT, CFD, Efficiency, Contour, Optimal, TSR, power

Upaya Menurunkan Emisi NOx Engine Diesel dengan Pengaplikasian Sistem Injeksi Bertingkat M. Yasep Setiawan; Masykur Masykur; Martias Martias; Wawan Purwanto; Ahmad Arif
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Penelitian ini bertujuan untuk menurunkan kadar emisi gas buang NOx dari hasil pembakaran campuran bahn bakar dan udara pada engine diesel diamond di-800 dengan menggunakan bahan bakar biodiesel B20. Penelitian ini dilakukan secara eksperimental dengan melakukan modivikasi pada engine diesel Diamond di-800 sitem injeksi konvensional menjadi injeksi bertingkat atau split injection yang dikontrol secara elektronik. Pengujian dilakukan dengan kecepatan konstan 1500 rpm dan menggunakan beban elektris lampu variasi beban dengan 200 watt sampai dengan 2000 watt dengan interval 200 watt. Variasi pada sistim penginjeksian bahan bakar ke ruang bakar dengan variasi injeksi 100%-0%, injeksi 75%-25%, injeksi 50%-50%, dan injeksi 25%-75%. Hasil yang didapat dari penelitian ini adalah pengaplikasian injeksi bertingkat pada engine diesel diamond di-800 efektif untuk menurunkan emisi gas buang NOx berturut-turut injeksi 75%-25%, injeksi 50%-50%, dan injeksi 25%-75% sebesar 46%, 56% dan 45% jika dibandingkan dengan injeksi tunggal atau single injection (variasi 100%).

RANCANG BANGUN MESIN PENGHALUS KULIT PISANG MENJADI BUBUK MINUMAN KOPI DENGAN DAYA 0,5 HP saparin saparin; Yudi Setiawan; Eka Sari Wijianti; Randi Randi
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v7i1.3635

AbstrakPenelitian ini tentang rancang bangun mesin penghalus kulit pisang untuk dijadikan bubuk minuman kopi. Biasanya minuman kopi disajikan dari bahan biji kopi, namun kali ini bahan dasar kopi adalah dari kulit pisang kepok matang. Kulit pisang ini umumnya dihaluskan dengan menggunakan blender, tetapi memiliki kelemahan yaitu kapasitas produksinya yang rendah, sehingga memerlukan waktu yang lama dalam memproduksi dalam jumlah yang besar. Berdasarkan hal tersebut, maka dibuatlah mesin penghalus kulit pisang dengan tingkat kehalusan seperti bubuk kopi pada umumnya. Mesin ini dirancang dengan sistem kerjanya mirip Hammer Mill yaitu menggunakan prinsip benturan/pukulan (impact) dan juga gesekan. Sudu penghalus akan dipasang menyatu pada sebuah poros putar 1 inchi yang berada di dalam tabung dan di sekeliling tabung dipasang ayakan (meshing). Produk hasil penghalusan akan keluar melalui lubang ayakan 18 mesh menuju lubang pengeluaran dibawah tabung. Dimensi mesin secara keseluruhan yaitu dengan panjang 61 cm, lebar 40 cm, dan tinggi 88 cm, dengan penggerak motor listrik 370 watt putaran 1400 rpm. Putaran poros yang menghubungkan sudu penghalus yaitu dengan 1050 rpm. Jumlah sudu penghalus tetap yaitu 4 buah. Jarak celah antara sudu penghalus dengan dinding tabung berkisar 9 sampai dengan 12 mm. Torsi yang dihasilkan motor listrik 2.525,23 Nmm. Data hasil pengujian menghasilkan kapasitas produksi mesin 4,896 kg/jam. Efisiensi produksi mesin 73,33%.

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Sulaiman Ali

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Jurusan Teknik Mesin, Fakultas Teknik Universitas Teuku Umar, Jalan Alue Peunyareng, Kecamatan Meureubo, Aceh Barat, Aceh.

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Kab. aceh barat,

Aceh

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Sulaiman Ali

Contact Email sulaimanali@utu.ac.id

Phone +6281360045520

Journal Mail Official mekanova@utu.ac.id

Editorial Address Jurusan Teknik Mesin, Fakultas Teknik Universitas Teuku Umar, Jalan Alue Peunyareng, Kecamatan Meureubo, Aceh Barat, Aceh.

Location Kab. aceh barat, Aceh INDONESIA

Abstract

Abstract

Abstract

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Abstract

Abstract

Abstract

Contact Name
Sulaiman Ali

Contact Email
sulaimanali@utu.ac.id

Phone
+6281360045520

Journal Mail Official
mekanova@utu.ac.id

Editorial Address
Jurusan Teknik Mesin, Fakultas Teknik Universitas Teuku Umar, Jalan Alue Peunyareng, Kecamatan Meureubo, Aceh Barat, Aceh.

Location
Kab. aceh barat,

Aceh

INDONESIA