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Machine : Jurnal Teknik Mesin
Published by Universitas Bangka Belitung
ISSN : 25022040     EISSN : 25810138     DOI : -
Core Subject : Engineering,
Automotive Engineering Mechanical Engineering
Arjuna Subject : -
Articles 180 Documents
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SIMULASI ALIRAN PADA TURBOSAIL MENGGUNAKAN MODEL RANS - SCALABLE WALL FUNCTION Eka Sari wijianti
Machine : Jurnal Teknik Mesin Vol 5 No 1 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.872 KB) | DOI: 10.33019/jm.v5i1.1002

Abstract

Turbosail merupakan silinder yang diletakkan di tengah kapal yang berfungsi meningkatkan gaya angkat (lift) kapal sehingga mampu mereduksi penggunaan bahan bakar. Sama seperti cara kerja layar dan turbin, turbosail memanfatkan propulsi angin sebagai sumber energinya. Pada penelitian ini akan disimulasikan sebuah turbosail dengan bentuk bulat telur yang ditambahkan ekor pada bagian belakangnya untuk mengurangi gaya hambat (drag). Untuk mengetahui kinerja turbosail, dilakukan simulasi menggunakan RANS (Reynolds Average Navier Stokes) dengan model simulasi Scalable Wall Function. Geometri dan meshing dibangun dengan software Salome. Perhitungan simulasi dijalankan menggunakan program Code Saturne, sedangkan penyajian grafik menggunakan program Paraview dan Phyton. Hasil simulasi menunjukkan bahwa bentuk bulat telur dan penempatan ekor di bagian belakang turbosail mampu meningkatkan nilai CL dan mereduksi nilai CD. Nilai CL untuk bilangan Reynold 104 adalah 1,45 dan nilai CD sebesar 0,58. sedangkan untuk bilangan Reynold 105 nilai CL adalah 1,47 dan nilai CD adalah 0,71.
DESAIN DAN ANALISIS KEKUATAN RANGKA LEMARI PERKAKAS DI BALAI LAPAN GARUT MENGGUNAKAN METODE ELEMEN HINGGA Lasinta Ari Nendra Wibawa
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.676 KB) | DOI: 10.33019/jm.v5i2.787

Abstract

Penelitian ini mengkaji tentang perancangan dan analisis kekuatan rangka lemari perkakas menggunakan metode elemen hingga. Lemari perkakas didesain lima tingkat dengan ukuran 800 mm (panjang), 400 mm (lebar), dan 1750 mm (tinggi). Analisis dilakukan menggunakan software Autodesk Inventor Professional 2017. Material rangka yang digunakan adalah Aluminum paduan 3003-H12 dengan standar DIN EN 10056-1 (Equal angles) dengan ukuran 25 x 25 x 3 mm. Variabel beban tiap tingkat lemari perkakas yaitu 45 kg, 50 kg, 55 kg, dan 60 kg. Hasil simulasi menunjukkan untuk beban lemari perkakas tiap tingkat dengan berat 45 kg, 50 kg, 55 kg, dan 60 kg memiliki faktor keamanan berturut-turut yaitu 2,49, 2,24, 2,04, dan 1,87.
ENGINEERING DESIGN PROCESS PADA PERANCANGAN TRANSPORTASI PERSONAL DIDALAM LINGKUNGAN UNIVERSITAS Deny Nusyirwan
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.449 KB) | DOI: 10.33019/jm.v5i2.824

Abstract

Universitas merupakan tempat mahasiswa mengikuti kegiatan belajar dan kegiatan non formal lainnya. Dengan semakin berkembangnya cabang ilmu pengetahuan, tidak jarang mahasiswa yang belajar ilmu teknik, akan mengikuti perkuliahan di fakultas lain atau mengikuti seminar-seminar yang diadakan oleh universitas atau organisasi mahasiswa di lingkungan kampus. Dari hasil observasi secara langsung, dapat ditemukan masalah utama yaitu mobilitas internal kampus, seperti terlambat mengikuti perkuliahan lanjutan akibat jarak dari satu lokasi perkuliahan ke lainnya yang cukup jauh karena tidak tersedianya transportasi yang memadai di lingkungan internal kampus atau ketinggalan bus shuttle karena terlambat sampai di lokasi pemberhentian bus. Dalam penelitian ini akan dititik beratkan pada transportasi pribadi didalam universitas yang nyaman dan selalu tersedia serta mudah dioperasikan. Penelitian dititik beratkan dengan mengikuti proses desain rekayasa dari observasi hingga pembuatan purwarupa sederhana untuk mendapatkan pengalaman dari calon pengguna.
PENGARUH REDUKSI CANAI TERHADAP SIFAT MEKANIS BAJA KARBON RENDAH DENGAN SAMBUNGAN FLASH BUTT WELDING Sunardi Klaten
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.133 KB) | DOI: 10.33019/jm.v5i2.1007

Abstract

Steel plate making can be produced by hot and cold rolling method. To obtain the optimal results, the production on the cold rolling mill (CRM) must be carried out continuously. This CRM is equipped with a flash butt welding machine to connect between one plate and anothers. The purpose of this research is to determine the effect of thickness reduction on mechanical properties of steel JIS 3141. The method used in this study is experimental, namely mechanical properties testing at weld area, heat affected zone (HAZ) and base material. The thickness reductions used in this research are 0%, 69,78%, 71,56% and 73,33%. The material characteristics observed were hardness, tensile strength, yield strength, elaongation and corrosion rate. From this study it is known that the thickness reduction 73.33% resulted the best mechanical properties. The values ​​of hardness, tensile strength, yield strength and corrosion rate were 82.26 HRB, 644 N / mm2, 501 N / mm2 and 1.3844 mpy, respectively.
ANALISA KINERJA MESIN PENCACAH BOTOL PLASTIK TIPE PET Nuha Desi Anggraeni
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.721 KB) | DOI: 10.33019/jm.v5i2.1068

Abstract

Plastic waste production in 2015 reached 146 tons per year. This amount is the highest amount of waste compared to other solid waste sectors. The most plastic waste is packaging plastic waste which is often used to package food and beverages. Because of the amount of waste, plastic waste needs to be processed so that it can be reused into other objects. One of the uses of plastic waste is by carrying out plastic counting to be used again. In a previous study, a scissor-type plastic crusher machine was built with a capacity of 50 kg / hour with a diesel engine. The plastic chopper machine needs to be tested for performance to determine the suitability of the results of realization with the initial design. Engine performance tested and analyzed were engine capacity, noise level, crushing efficiency, and machine vibration and crushing quality. The test results show the actual capacity of the engine is 36.68 kg / hour; the efficiency of the crushing results is 73.37%, the noise level when carrying out the crushing is 80.6 dB, the vibration generated when carrying out the crushing is 4.9 mm / s2, and the yield 73.45% crushing.
PENGARUH VARIASI DIAMETER PIPA INPUT DAN PIPA OUTPUT TERHADAP KINERJA POMPA HIDRAM budi santoso wibowo
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.146 KB) | DOI: 10.33019/jm.v5i2.1366

Abstract

Bangka Belitung Province is one of the provinces that have a vast potential of agricultural land, with the potential for abundant water resources in an area that is often in contradiction with the conditions in which some regions still lack water. Often the source of water is under the location of settlements or agricultural land, so it is difficult to use it. The use of electric/diesel pumps has significant cost consequences, as some farmers do use diesel pumps to irrigate their farm fields from rivers that are nearby. One technology that is simple and inexpensive to use is the use of a hydram pump. The methodology in this study is that the hydram pump drive is derived from the impact of water entering the pump through a pipe that depends on the flow of flow entering the pump. This study discusses the performance of hydram pumps on variations in the diameter of the Input pipe and Output pipe. The results of the study that the greatest efficiency of hydram pump for discharge of 8 liters/minute is in the variation of the diameter of the Input pipe 1 inch and the Output pipe 1½ inches is 9.5%, while the lowest efficiency in the variation of the Input pipe diameter is 1½ inches and the Output pipe 1½ inches is 6, 2%. The results of the study found that the larger the diameter of the Input pipe and the smaller the diameter of the Output pipe, the greater the efficiency produced at the hydram pump.
TURBIN ANGIN SAVONIUS EMPAT SUDU DENGAN VARIASI MODEL PROFIL SEBAGAI MEDIA BELAJAR MAHASISWA Eka Sari Wijianti; Saparin Saparin; Yudi Setiawan
Machine : Jurnal Teknik Mesin Vol 5 No 2 (2019): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.28 KB) | DOI: 10.33019/jm.v5i2.1414

Abstract

This research is about making a prototype of four blades savonius wind turbine as a learning media for Energy Conversion in the Mechanical Engineering Department, Bangka Belitung University. The making of this learning media is due to the limitations of student practicum facilities to support the continuity of practical and conducive lectures. The prototype was made with small dimensions, namely a frame of 0.75m x 1.5m and a turbine blade diameter of 0.15x0.3m. A fan-assisted the study as a wind energy generator. Wind speed variations carried out at three rates following the wind speed generated by the fan. The rate of wind speed measured using an anemometer and the rotation using a tachometer. The current and voltage are measured using a multitester. Turbine blades are varied with 4 blades with three-blade profile models, namely U, L, and S. Research, shows that wind speed influences turbine performance. The higher the wind speed, the higher the rotor's rotation, and so the resulting power. The best profile is obtained from the L model, which reaches 177.63 rpm with 6.35 watts of power.
p PENGUJIAN MESIN KOMPOSTER KOMUNAL SAMPAH RUMAH TANGGA TIPE ROTARY HORIZONTAL KAPASITAS 40 KG noviyanti nugraha
Machine : Jurnal Teknik Mesin Vol 6 No 1 (2020): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v6i1.800

Abstract

Sampah rumah tangga diantara nya sampah sisa sayuran merupakan sampah organik yang dapat didaur ulang atau diolah kembali. Salah satu upaya pengolahan sampah organik yaitu dengan cara mengolahnya menjadi pupuk kompos. Untuk mempercepat proses pengomposan dibutuhkan komposter. Pada penelitian sebelumnya telah dirancang dan dibuat sebuah mesin komposter komunal rumah tangga tipe rotary berkapasitas 40 kg sampah. Tujuan dari penelitian ini adalah melakukan pengujian terhadap komposter komunal tipe rotary horizontal berkapasitas 40 kg hasil pengembangan yang sudah dilakukan pada penelitian sebelumnya. Pengujian dilakukan pada putaran drum 25 rpm dan 30 rpm, dengan memutar komposter setiap hari satu kali pemutaran dengan lama pemutaran 2 dan 7 menit dilakukan sampai kompos matang. Parameter yang diuji adalah lamanya waktu pengomposan, temperatur, pH, kadar air, kandungan karbon dan nitrogen. Target proses pengomposan adalah 14 hari atau 2 minggu. Hasil pengujian diperoleh waktu pengomposan sesuai target yaitu 14 dan 11 hari, temperatur maksimum pada fase thermophilik adalah 70 oC, PH maks 7, kandungan karbon maks 33%, kandungan nitrogen maks 1,2%, rasio C/N maks 32,6, kadar air maks 35,3%, kadungan kompos yang dihasilkan untuk rasio C/N diatas standar SNI 2004 sebesar 3%, sedangkan hasil lainnya rata-rata sesuai dengan standar SNI.
PENGARUH PARAMETER PERMESINAN TERHADAP BURR FORMATION PADA PROSES MILLING DENGAN CNC ROUTER ALUMINIUM SHEET 1100 fariq urbeyni
Machine : Jurnal Teknik Mesin Vol 6 No 1 (2020): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v6i1.1178

Abstract

This study aims to determine the burr formation value of aluminium sheet 1100 object using the milling router machining method with depth parameters feeding (1mm ; 1,5mm ; 2mm), feeding (100 mm/minute ; 200 mm/minute ; 300 mm/minute), speed (5000rpm ; 8000rpm ; 12000rpm) and coolant (coolant ; air ; oil SAE 40). This resarh was carried out in a robotics laboratory majoring in electronics engineering at the bengkalis state polytechnic campus.The samples used were 100x60 mm in size with 27 pieces which would be treated differently by varying the end mill tool diameter, feeding depth, feeding, speed, and coolant. The measurment used to measure the burr formation of the workpiece is a microscope USB, data analysis techniques used are the taguchi and ANOVA methods. The results showed that the lowest burr value was obtained at 1mm depht, 6mm tool, 50 m/minute feeding, oil cooler and 5000 rpm speed ie 0,2288 while the hihest was obtained at 1,5mm depht, 5mm tool, 50 m/minute feeding, coolant cooler and 12000 rpm speed ie 0,590967. Based on the analisys of varian (ANOVA) that the significant parameter in influencing the burr formation is the tool and coolant
ANALISA TUNGKU PEMBAKARAN ARANG UNTUK MENINGKATKAN PRODUKTIVITAS KARBONISASI ARANG mohd zulkarnain
Machine : Jurnal Teknik Mesin Vol 6 No 1 (2020): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v6i1.1189

Abstract

Charcoal is a residue that is solid in the form of wood burning under controlled conditions. The process of burning is burning wood with limited air, and can produce charcoal, tar, acetic acid, wood alcohol, and wood gas (CO2, CH4, CO, and H2). The purpose of this research is to find out the causes of non-carbonized charcoal, to produce maximum charcoal combustion, and to find out what percentage is charcoal and ash. The case study of this research is a dome-shaped charcoal furnace with a capacity of 4.5 tons owned by one of the indigenous tribesmen who produce wood charcoal, which is located on the main road of Jangkang, Gg native tribe, Bantan District, Bengkalis Regency. The method used in this research is the experimental method and the Slovin method. Because what is varied in this study is the base used, by adding an iron plate and a temperature measuring instrument, namely a thermometer. Data retrieval is done by burning twice to get the comparison results. From the results of research that has been done, it can be explained that in order to obtain maximum charcoal, several factors must be considered, namely temperature, carbonization duration, winding down of doors and chimneys, and closing of combustion doors. second combustion using a plate base two days faster than the first combustion. But the furnace temperature is unstable, there is charcoal that is not carbonized.

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