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INDONESIA
Machine : Jurnal Teknik Mesin
ISSN : 25022040     EISSN : 25810138     DOI : -
Core Subject : Engineering,
Arjuna Subject : -
Articles 180 Documents
ANALISA PERAWATAN INTAKE PUMP DENGAN MENGGUNAKAN METODE RISK BASED MAINTENANCE (RBM) Ozkar F. Homzah; Ella Sundari; Rizky Brillian Yuliandi; Femi Permata Sari
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4352

Abstract

Intake Pump is one of the important equipment in the steam power plant of 3x10 MW electrical generator which functions to supply raw water to production of demin water, domestic water and service water. In the process of producing water through the intake pump there are several components of the intake pump that often experience damage, this can be a loss for the company, therefore requiring additional processing. In this study, the Risk Based Maintenance (RBM) method was carried out to achieve optimal maintenance by knowing the impact and risk of failure according to important intake pump components, namely impeller, bearing and shaft. Based on the analysis results of the RBM calculation, the consequences of risks accepted is low to 0.05% by the company that achieved to 221,498,196.507 Indonesian rupiah it’s to 0.13% of production capacity per year. This value exceeds the acceptance risk tolerance of 0.13% which has become a company provision. Therefore, it is necessary to plan the proposed maintenance period from the existing policy, which is carried out 48 times a year for each critical component such to reducing the number of consequences and risks to 198,002,597 Indonesian Rupiah or equal to 0.01%.
PENGARUH PERLAKUAN SERAT SABUK KELAPA (SSK)TERHADAP MORFOLOGI DAN SIFAT AKUSTIK KOMPOSIT BERPENGUAT SSK Mukhlis Muslimin; Kifli Umar; Ahmad Seng; Kadri Daud; Samsul Bahri LM
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4466

Abstract

The research aims to determine the effect of SSK treatment with liquid smoke on the morphology and acoustic properties of SSK reinforced composites. The research method is an experimental method with variations in fiber treatment by soaking in liquid smoke for 1, 2 and 3 hours. Next, after soaking the fiber, it is heated in an oven at 40ºC for 30 minutes, then the resulting fiber morphology is observed using a JEOL JCM 6000 SEM tool then SSK reinforced composites are made for acoustic testing, specimen making is done by preparing resin and long fibers. 1 cm fiber, 60% resin composition and 40% SBP, after drying a composite acoustic test specimen was made. The results show that SSK treatment with liquid smoke increases the fiber morphology to become rough and porous, so that the SSK reinforced composite has a sound absorption coefficient value for the SSK TP composite of 0.1175 db, while the SSK P1J, P2J, and P3J composites have a sound absorption coefficient value of 0.1304, 0.1199, and 0.1181 db. , this shows that the SSK P1J composite is better in sound absorption by 10.92% when compared with SSK TP, so it can be recommended as an environmentally friendly acoustic material.
RANCANG BANGUN ALAT SETTING ALIGNMENT RODA GIGI SEBAGAI MEDIA PEMBELAJARAN DI LABORATORIUM PERBAIKAN DAN PEMELIHARAAN MESIN Kadriadi Kadriadi; Angga Bahri Pratama; Kadex Widhy Wirakusuma; Jandri Fan HT Saragi; Jeri Ariksa; Muhammad Alfian; Yudi Siswanto
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4509

Abstract

Alignment is a technique used to maintain machine components that rotate or transfer power so they can operate as effectively as possible and prevent damage to other machine components from errors made during installation or maintenance. Alignment is a maintenance activity that is often carried out on machines in industry and machines within the Morowali Metal Industry Polytechnic, especially in the Mechanical Maintenance Engineering Study Program. Competency in the alignment of gears and bearings is very much needed for prospective mechanics in the industry. The purpose of making this tool is as a simulation tool for learning alignment to achieve straightness and centricity between two rotating shafts (drive and driven shaft) to prevent friction, vibration, and other problems that can reduce tool life and, of course, increase expenditure costs. for repair or replacement of heavy equipment. In the process of designing this alignment tool, a drive method is used in the form of a sprocket and chain, where the link between the drive motor and the shaft to be moved is the sprocket and chain method. This research serves to help produce a design by considering the user's perspective so that the design results can be useful effectively. From the test results, the gear alignment setting tool can function well with the help of an inverter so that motor rotation can be reduced and can be controlled according to the desired conditions. The previous alignment setting tool had an RPM: of 1450.8 and the alignment setting tool that was made had an RPM: of 1455.7 with a frequency of 50 Hz so it can be concluded that this tool can be used for practical work in machine repair and maintenance laboratories.
PENGEMBANGAN MESIN PEMISAH KULIT POLONG KACANG HIJAU UNTUK PENINGKATAN KAPASITAS DAN EFISIENSI PEMISAHAN BIJI Ahmad Nurul Muttaqin; Uswatul Hasanah Mihdar; Arfandy Arfandy
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4519

Abstract

The objective of this study is to improve the quality and efficiency of the verification process which is crucial for processing green bean seeds by upgrading the green bean skin separating machine. This change entails improving engine rotation in addition to changing engine mechanics and parts. The engine was tested at 350 rpm, 425 rpm, and 500 rpm during the experimental phase. According to the data, 350 rpm is the ideal engine speed for separating green bean seeds from the pod skin, with a differential capacity of 54 kg/hour. When ninety percent of the green bean seeds are undamaged and out of the pod skin, they are combined with other components. This machine may serve as a commercial solution to improve the quality and efficiency of processing green bean seeds. These encouraging outcomes highlight how important technology is to the agro-industrial and agricultural sectors. By processing green bean seeds more effectively and of higher quality, technology may also assist the environment and the economy.
ANALISA BENDING STRESS PADA FILAMEN ABS TERHADAP ARAH CETAKAN 3D PRINTING TIPE FDM Widiyanto, Wahyu
Machine : Jurnal Teknik Mesin Vol 10 No 1 (2024): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v10i1.4587

Abstract

Rapid Prototyping (RP) technology is rapidly advancing and plays a crucial role in various sectors. One of the methods used in this technology is Fused Deposition Modelling (FDM), which involves the process of melting thermoplastic material using an extrusion mechanism. FDM-type 3D printers control nozzle movements through computerization, resulting in various directions of movement, including parallel to the x-axis (0°), y-axis (90°), and diagonal (45°). Differences in these directions impact the mechanical characteristics of flexural strength in the produced prints. This research involves a bending test according to ASTM D790 standards, using the Beste KJ-1065 testing machine. Test specimens were created in three different types, with nozzle direction settings that differ in external infill angle offset and internal infill angle offset, specifically at 0° (parallel to the X-axis), 45° (parallel to the diagonal), and 90° (parallel to the Y-axis). The research results show that the nozzle direction in FDM-type 3D printers also influences the flexural strength of the produced products. The highest flexural strength was found in products with a 0° nozzle direction, reaching 65.21 MPa, while the lowest occurred in products with a 90° nozzle direction in the horizontal condition, reaching 45.18 MPa. Key words : Rapid prototyping, 3D Printing, Fused Deposition Modelling
MENINGKATKAN KAPASITAS PRODUKSI SUSU KEMASAN KALENG MELALUI PERANCANGAN MESIN PALLETIZING Dadan Heryada Wigenaputra; Ade Ramdan; Fajar Akbar
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4615

Abstract

Sebuah perusahaan produsen susu kemasan kaleng membutuhkan sebuah improvment pada proses produksinya yang menginginkan proses produksi menjadi otomatis. Salah satu prosesnya yaitu memindahkan kaleng menuju twister minimal 1200 pcs/jam untuk jenis 400 gram dan minimal 600 pcs/jam untuk jenis 600 dan 800 gram. Untuk mengatasi permasalahan tersebut, maka perlu dibuat sebuah rancangan mesin palletizing untuk memindahkan tumpukan kaleng menuju twister secara otomatis. Mesin yang dirancang harus mampu menahan beban dari tumpukan kaleng pada saat proses memindahkan kaleng menuju twister. Proses perancangan menggunakan metodologi VDI 2206 dari mulai menetapkan requirement, system design, domain-spesific design, system integration, verification/validation, sampai dengan menghasilkan produk. Hasil proses perancangan telah menghasilkan sebuah rancangan yang mampu memindahkan kaleng menuju twister sebanyak 1500 pcs/jam untuk jenis kaleng 400 gram dan 810 pcs/jam untuk jenis kaleng 600 dan800 gram. Konstruksi mesin palletizing sangat aman, karena beberapa komponen telah dianalisis kekuatannya dan memiliki faktor keamanan minimal 3,8.
PENGARUH PENDINGINAN PANEL SURYA TERHADAP EFISIENSI DAYA KELUARAN Ariksa, Jeri; Forestico, Abraham Sahat Salano; Setiawan, Yudi; Saparin, Saparin; Wijianti, Eka Sari
Machine : Jurnal Teknik Mesin Vol 10 No 1 (2024): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v10i1.5055

Abstract

Solusi pemenuhan energi listrik di daerah pedalaman dapat terselesaikan dengan menggunakan sumber energi terbarukan seperti panel surya yang dapat dibangun pada daerah terpencil dan minim infrastruktur. Penggunaan panel surya sendiri membutuhkan suhu optimal pada 25⁰C, sementara itu pada saat siang hari suhu pada panel surya bisa mencapai 45⁰C suhu optimal tersebut, dengan itu perlu adanya pengoptimalan suhu kerja pada panel surya dengan diberikan pendinginan untuk meningkatkan daya keluaran pada panel surya. Penelitian ini bertujuan untuk mengetahui pengaruh pendinginan pada panel surya yang menggunakan variasi pendinginginan air pada suhu 25-70⁰C. Hasil dari penelitian didapatkan rerata efisiensi pada panel surya yang bersuhu air 60-70°C 11,42,% dengan rerata daya keluaran 19,58W, rerata efisiensi panel surya dengan air bersuhu 25-28°C adalah 12,40% rerata daya keluaran 21,26W dan rerata efisiensi panel surya tanpa air adalah 11,86% dengan rerata daya keluaran 20,34W. Dan untuk pengujian panel surya dengan penambahan pendinginan memberikan pengaruh terhadap daya keluaran dan efisiensi yang dihasilkan oleh panel surya.
PEMBANGKIT LISTRIK RAMAH LINGKUNGAN BERTENAGA SURYA GUNA MEMENUHI KEBUTUHAN NELAYAN PANTAI MATRAS BANGKA Hidayat, Rizal Tegu; Rollastin, Boy; Pranandita, Nanda
Machine : Jurnal Teknik Mesin Vol 10 No 2 (2024): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v10i2.4676

Abstract

Natural resources in the form of solar heat, can be used as an alternative to electricity generation by using a power plant tool in the form of solar panels. In certain areas there are still many who need a supply of electric power, for example in the Turun Aban Sungailiat Beach area, Bangka Belitung Islands Province. At that location there is no electric power supply at all, the fishermen at the Turun Aban Beach location often carry out the process of transporting catches at night conditions. Therefore, to meet their needs, these fishermen can use alternative power plants in the form of solar panels. This research examines the process of analyzing the performance of solar-powered power plants. The solar panel produces 115.28 watts of power in 1 day. The time required for charging the battery is 5.81 hours/day and the battery endurance time is 4.65 hours in 1 day.
DESIGN OF TAPERED WIND TURBINE USING VARIOUS NACA 24112 AIRFOILS IN SEMAYAN VILLAGE CENTRAL LOMBOK REGENCY Tira, Hendry Sakke; Zulfikar, Muhammad Ponco
Machine : Jurnal Teknik Mesin Vol 10 No 2 (2024): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v10i2.4704

Abstract

This research focuses on designing and optimizing a tapered wind turbine employing NACA 24112 airfoils, specifically tailored for Semayan Village in Central Lombok West Nusa Tenggara province. Given the escalating global energy demand and the depletion of fossil fuels, the study aims to explore alternative energy solutions. The chosen horizontal axis turbine, equipped with an increased number of blades, seeks to maximize the power coefficient and overall efficiency. The NACA airfoil model, coupled with Q-Blade v0.963 software, was employed for simulations after conducting wind speed measurements in Semayan Village. The collected data indicated moderate wind speeds, aligning with the selection of the Taper blade design. The blade design process involved comprehensive system efficiency calculations and twist angle optimizations to enhance overall turbine performance and extend its lifespan. Rotor simulations revealed a noteworthy peak in the power coefficient (Cp), reaching 45% at Tip Speed Ratio (TSR) 7, indicating an optimal point for power generation. However, the study emphasizes the importance of selecting an appropriate TSR, as efficiency diminishes at higher TSR values. This research highlights the potential of wind energy as a viable and sustainable solution, particularly for regions with limited access to electricity. It advocates for the broader adoption of renewable energy sources to address the evolving energy landscape.
PENGARUH HEAT INPUT PADA PENGELASAN COMBINE GTAW-SMAW DISSIMILLAR MATERIAL BAJA AISI 1045 DENGAN SS 304 TERHADAP SIFAT MEKANIK Fauzi, Yusuf Rizal; Heka, Akbar Ela
Machine : Jurnal Teknik Mesin Vol 10 No 2 (2024): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v10i2.5406

Abstract

The growth and development of technology in the construction sector which is increasingly advanced and rapid, cannot be separated from the process of joining similar metals or joining dissimilar metals. This dissimilar welding uses AISI 1045 stainless steel and SS 304 carbon steel with a size of 200 x 200 x 6 mm. The welding method uses GTAW with ER 309 L filler metal with a diameter of 2.4 mm. Dissimilar welding aims to understand the mechanical properties affected by heat input. This study varies the heat input of 1.08 kJ / mm and heat input of 0.83 kJ / mm. The tests carried out were microstructure observations, tensile tests and hardness tests. The results of the tensile test all fractures occurred in the SS 304 base metal with an average value of 886 MPa. The results of the hardness test showed that the fusion line point had a higher hardness value compared to the base metal. In the observation of the microstructure of the SS 304 fusion line area, it has ferrite and pearlite phases, for the weld metal area it has ferrite, austenite and dendritic phases, in the AISI 304 fusion line section it has ferrite and austenite phases. The effect of heat input can be concluded that heat input affects the HAZ and fusion line due to the increasing hardness value.