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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 308 Documents

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ANALISIS PERFORMANCE COOLING TOWER TIPE INDUCED DRAFT COUNTER FLOW PLTP KAMOJANG UNIT 5 Abdurohman, Hasan; Mrihardjono, Juli; Darmanto, Seno
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

Cooling tower is a heat exchanger used to cool water from the condenser. The process is carried out by contacting water with air directly and discharged into the atmosphere using air fluid that is flowed naturally or flowed by a fan. Cooling tower type used in PLTP Kamojang Unit 5 is Induced draft Counter Flow. This equipment more important in increasing turbine efficiency, therefore special treatment is needed by knowing and observing the performance of the Cooling tower so that it can be analyzed in actual conditions and make decision steps in carrying out further repairs and maintenance, this is the basis of research that will be carried out by looking for value and the Cooling tower performance trendline. The calculation method uses the standard ASME PTC 23-2003 and CTI ATC-105 where the results are the calculation baseline and the historical trendline of Cooling tower performance based on the parameters of the 3-cell Cooling tower operating conditions. The parameters tested are by taking 5 valid data on PLTP KMJ Unit 5, then the Tower Capability performance values are obtained as follows, namely in the initial commissioning conditions the performance value is 92,1%, Q1 2021 is 78,8%, Q3 2021 is 74, 3%, Q4 2021 is 84,7%, and Q1 2022 is 83,8%. There was a decrease in Q3 2021. Then there was an increase in the trend in Q4 2021 due to previous overhaul activities on the Cooling tower. Keywords: Cooling tower, trendline, overhaul, tower capability

KAJIAN EKSPERIMEN PENGGUNAAN SOLAR CELL SEBAGAI ALTERNATIF PENGISIAN AKUMULATOR 200Ah 12 Volt MESIN DIESEL PLTD Yusuf, Bakharuddin; Darmanto, Seno; Handayani, Sri Utami; Susastro, Susastro
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

PLTD (Diesel Engine Power Plant) is one generator used by several companies, especially electricity providers. It’s just that PLTD requires a large enough cost to produce electrical energy. Therefore it is necessary to make efforts to reduce operational costs, one of which is by making an alternative to charging the accumulator on the diesel engine. The alternatif is a prototype solar cell that can charge the 200 Ah 12 Volt accumulator so that the accumulator can be used for the starting process diesel engine (PLTD). So, at this writing the author tries to make an experimental study of the use of solar cells as an alternative to charging a 200 Ah 12 Volt accumulator which in this experimental study proceduces a 2 x 80 Wp mobile solar cell prototype that can be used for charging the accumulator of PLTD machines. In addition, from this experimental study, the results of accumulator charging of 1,444.92 Wh are sufficient to be used for the dynamo starter process on diesel diesel engines and the annual savings value is obtained.

Karakteristik Pola Aliran Air-Udara, Campuran Air+Gliserin (G20)-Udara, dan Campuran Akuades+Butanol 4%-Udara Pada Pipa Horizontal Berukuran Mini Jayadi, Farid; Sudarja, Sudarja; Komolosari, Eli
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

This study aims to obtain information about the flow characteristics of Water-Air Flow, Mixture of Glycerin+Water(G20)-Air, and Mixture of Aquadest+Butanol 4%-Air. The two-phase flow characteristics in mini-sized pipes have significant differences with the two-phase flow characteristics in conventional pipes, so it will affect fluid distribution processes involving two-phase flow such as heat transfer processes. Therefore, it is necessary to conduct further studies on the two-phase flow pattern in mini-sized pipes. This research was conducted in a test section in the form of a glass pipe with a diameter of 1.6 mm in a horizontal position. The liquid fluid used is water which has a surface tension (σ) of 71 mN/m, a mixture of glycerin+water (G20) has a surface tension (σ) of 62.5 mN/m, and a mixture of distilled water+butanol 4% has a surface tension (σ) of 36.50 mN/m. Superficial velocity of gas (JG)=0.033–4.935 m/s, and superficial velocity of liquid (JL)=0.025–66.3 m/s. The results showed that stratified flow was not observed in the mini channel as can be found in conventional pipes. The detected flow patterns are: bubbly, slug, slug-annular, churn, and annular. The results of flow pattern maps compared with flow pattern maps from Triplett et al (1999a), Chung and Kawaji (2004) and Sudarja et al (2014), and Aqli et al (2015) show that the higher the viscosity, the higher the annular churn-slug flow transition line will be. decreases while the annular – slug annular transition line tends to be more sloping.

Penambahan Katalik Konverter Plat Tembaga Berbentuk Spiral Terhadap Emisi Gas Buang Motor Bakar Menggunakan Gasboard 5020 Daryono, Mohammad; Darmanto, Seno
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

Due to the high use of motorized vehicles, air pollution will arise which can interfere with the environment and human health. The results of the combustion of motor vehicle fuels produce pollutants that are harmful to human health, if inhaled by humans, they can cause respiratory tract irritation, eye irritation and skin allergies, which can lead to lung cancer. The purpose of this study was to examine whether copper plates can be used as a substitute for catalytic converters to reduce exhaust gas emissions (CO and HC gases). The test results show that copper plate can be used as a catalytic converter replacement material with a significant reduction in exhaust emissions, with a decrease in the percentage of CO by 29.9% at 5000 rpm using a 10 winding catalyst, and a decrease in the percentage of HC by 33.9% at rotation. 5000 rpm using a 10 winding catalyst. Suggestions from this study are if you use it for daily purposes, you should use a catalyst that has 10 winding.

RANCANG BANGUN ALAT UJI KELURUSAN BENDA BERBASIS ARDUINOUNO DENGAN MENGGUNAKAN SENSOR HC-SR04 Naufal, Aziz Ibnu; Hadi M, Alaya Fadlu; Mrihardojhono, Juli
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

Design build Object Based Straightening Tools Arduino Uno Using HC-SR04 Sensor. Straightness test to be carried out so that the quality and quality of the product obtained is precise. By utilizing proximity sensor technology and Arduino Uno as a microcontroller, this is a solution to solve straightness test problems that still use conventional methods. Proximity sensor technology and Arduino Uno as a microcontroller are solution to detect the presence of objects in the vicinity without any physical touch. In the straightness test, the workpiece (pipe) is placed on the workpiece holder. The ultrasonic sensor will read how far the object is working with the ultrasonic sensor. The waves emitted by the ultrasonic sensor to the workpiece will be read back by the ultrasonic sensor to display data on the distance of the object to the sensor. The calibration method is carried out by using an inch pipe that has been confirmed to be straight, flat, and has no defects on its surface. The calibration process was carried out 10 times with a distance ranging from 10 mm – 100 mm. The function test of the measuring instrument is carried out after the calibration process is carried out and the test is carried out at a distance of 70 mm using 1 inch and 2 inch pipes. From the test data for 1 inch and 2 inch pipes, we get a table of error values from the measurements of the two pipes. The results of testing the prototype of this straightness test tool show that the prototype works effectively and efficiently, so that it can be applied in teaching and learning activities as well as in the industrial world.

ANALISA PERBANDINGAN HASIL UJI TARIK PADA BEBERAPA SPESIMEN DENGAN LOAD CELL BERKAPASITAS 500 KN Al Ayubbi, Irfan; Darmanto, Seno; Ariwibowo, Didik
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

Many tensile tests are carried out to complete the basic design information of the strength of a material and as supporting data for material specifications. In the tensile test, the test object is given a load of tensile force that increases continuously, at the same time observations are made regarding the extension experienced by the test object. This study aims to determine the mechanical properties and their changes from a metal to tensile loading using qualitative methods and data collection methods using literature review. The study is carried out by collecting data through a literature book related to the object of the final project. The test results of the material that has the smallest value, namely Aluminum, are obtained, the value without heat treatment is Voltage = 566 N / mm2, Strain = 7.9 , ME = 72.1 N / mm2) and the value using heat treatment is Voltage = 439 N / mm2), Strain = 3.5, ME = 124.5 N / mm2). While the largest value, namely Iron Concrete TP 280, was obtained, the value without heat treatment was Voltage = 1012 N / mm2, Strain = 6.5 , ME = 156.4 N / mm2). While the values when using heat treatment are Voltage = 729 N / mm2), Strain = 3.7, ME =198.8 N / mm2). It can be concluded that the results of the comparative analysis of the strength of the test material without heat treatment and using heat treatment are known when the material is heated until it is close to its critical point, the material will form a new property that will make it change its properties to be tenacious or brittle.Keywords : Tensile Test, Stress, Strain, ME "Modulus of Elasticity", Heat Treatment

Rancang Bangun Mesin Pelangsiran Material Konstruksi Tower Transmisi Sistem Crane Pulley dengan Kapasitas Maksimal 250 kg Mukhamad, Alaya Fadlu Hadi; Darmanto, Seno; Haqni, Firdaus Kurniawan
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

Material shredders are used in construction projects to move materials from the starting point to the intended point. This trimming machine uses a type or system of crane pulley. In the world of construction, it can rarely be used in various terrains, whether flat terrain, valley terrain, or hilly terrain. Therefore, this paper aims to ensure that the process of upgrading / transferring the construction material of the 150 kV transmission tower can run well on flat terrain to difficult terrain such as valleys and hills based on several consideration factors. The design process of the material shredder consists of three stages, namely design, tool making, and tool testing. The design process consists of several stages, namely field review and the availability of supporting systems and raw materials. The fabrication process, carries out the assembly of materials that are already available by the predetermined design. The process of testing the tool, using the test method directly in the field so that the data presented is real loading data. The material drill engine can be used well in the field with a maximum carrying capacity of 250 kg with the highest effective tool capacity of 12,424kg/hour and fuel sed as much as 0.91 liters/hourKeywords : Design and Construction, Solidworks, Material Transfer Tool, Shifting Machine, Material Mover

Performa Solar Water Heater Collector Dengan Menggunakan Reflektor Dan Variasi Laju Aliran Air Masykur, Masykur; Saputra, Maidi; Jayadi, Farid; Munawir, Al; Supardi, Joli; Muazar, Muazar
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 8, No 2 (2022): Oktober
Publisher : universitas teuku umar

This study aims to look at the performance of the solar water heater collector with the addition of a reflector. Reflector is used to increase the absorption of solar radiation. The test was carried out by varying the water flow rate in the pipe, namely 75 l/hour, 150 l/hour and 225 l/hour with a collector tilt angle of 30°. Tests are carried out every one hour, starting at 09.00-16.00 WIB for each variation. Parameters measured in this study included glass temperature, inlet water temperature, outlet water temperature, pipe temperature, absorber temperature, ambient temperature and wind speed. The results showed that the highest efficiency occurred at a flow rate of 225 l/hour, which was 62.44% at IT 3,366 MJ/m2, and the highest ratio of outlet water temperature and inlet water temperature was 1.51 at a flow rate of 75l/h. Adding a reflector to the coverslip can increase collector efficiency.

Modifikasi Blender Dapur Menjadi Blender Santan Rumahan Zakir Husin; Herdi Susanto; Masykur Masykur; Nasri Agus Saputra
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v6i2.7161

Nowadays, there are many tools for processing coconut milk, such as grater machines, hydraulic coconut squeezing machines and others, but they are large in size and less efficient for daily use. The purpose of this research is to redesign an ordinary blender to become a coconut milk production blender and to manufacture an ordinary blender to become a coconut milk production blender and to do the testing. The designs that are carried out are the components of the blender mechanism, the grate, and the inner tube. Modifying an ordinary blender into a coconut milk blender by adding an inner tube and drawing it with AutoCAD 2007. After testing the grated and squeezed coconut blender it went well with the grated yield obtained of 1.15 kg from 5 coconuts and the yield of coconut milk obtained during the test was 1.66 liters from 5 coconuts.

MENINGKATKAN EFISIENSI PENGGUNAAN LISTRIK MOTOR CONTROL CENTER (MCC) PLTP MENGGUNAKAN SYSTEM AUTOMATIC ELECTRONIC (SAE) DI PT PGE AREA KARAHA Khudhori, Mansur; Sarief, Ivany
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 9, No 1 (2023): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v9i1.7197

AbstrakUpaya pemerintah dalam menjaga kestabilan energi nasional melalui program peningkatan pasokan dan penghematan energi harus didukung oleh seluruh lapisan masyarakat, dan termasuk di sisi hulu[1]. Penelitian ini menganalisis tentang potensi persentase penghematan energi listrik disisi hulu yaitu disektor pembangkit. Dalam penelitian ini akan membahas tentang potensi penghematan energi listrik own use di PLTP Karaha 1 Pertamina Geothermal Energy yang berlokasi di kabupaten Tasikmalaya Jawa Barat. Dalam menunjang operasional PLTP Karaha unit 1, diperlukan kegiatan patrol check yang berfungsi untuk memantau kondisi peralatan pembangkit untuk memastikan peralatan penunjang pembangkit dalam kondisi yang optimal. Namun dalam aktualnya, ketika kegiatan patrol check sudah selesai dilaksanakan, lampu ruangan atau indoor lighting dibiarkan menyala selama 24 jam selama terus menerus dikarenakan design engineering lampu saat prosess EPC (Engineering Procurement Construction). Maka dirancanglah sebuah sistem kontrol untuk mengoperasikan indoor lighting secara otomatis menggunakan sensor Passive Infra Red (PIR) dan modul Arduino Mega 2560. Pembuatan program pada arduino dilakukan menggunakan aplikasi arduino IDE. Pada aplikasi arduino IDE menunjukan program inisialisasi library (sensor) dan inisialisasi pin pin yang digunakan pada arduino. Program yang dibuat pada aplikasi arduino IDE adalah program untuk mengontrol On-Off lampu, tampilan LCD meliputi jumlah orang yang masuk ke ruangan MCC, waktu On lampu dan energi total kWh. Dengan menggunakan metode ini diharapkan dapat menjadi solusi penghematan penggunaan energi listrik indoor lighting. Kata kunci : PLTP, Own use, Indoor Lighting, sensor PIR, Arduino ATMega 2560

Page 15 of 31 | Total Record : 308

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Home Page

OAI Link

Editorial Team

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Contact Name Sulaiman Ali

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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

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Contact Name
Sulaiman Ali

Contact Email
sulaimanali@utu.ac.id

Phone
+6281360045520

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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