cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Kurnia Dwi Artika
Contact Email
kurnia.2a@politala.ac.id
Phone
-
Journal Mail Official
elemenjurnal@politala.ac.id
Editorial Address
-
Location
Kab. tanah laut,
Kalimantan selatan
INDONESIA
Jurnal Elemen
Published by Politeknik Negeri Tanah Laut
ISSN : 24424471     EISSN : 25812661     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering
Jurnal Elemen is a media for publishing scientific articles in the field of mechanical and automotive engineering which are published regularly in June and December each year. All articles presented are the results of research, conceptual ideas and reviews in the field of mechanical and automotive engineering that have never been published before. Jurnal Elemen managed by P3M in the Tanah Laut State Polytechnic has been ISSN, namely the printed version of ISSN 2442-4471 and online version of ISSN 2581-2661, and for now the Elementary journal has been indexed in ISJD (Indonesian Scientific Journal Database) in PDII-LIPI . then it can be indexed and accredited at SINTA, DOAJ and Scopus.
Arjuna Subject : -
Articles 279 Documents
 24   25   26   27   28 
OPERATION AND MAINTENANCE CHILLER TIPE SCREW PADA GEDUNG PLAZA PT. XYZ Bintang Ramadhan Hermnato; Gabriel Xaverius Englando Rajagukguk; Agung Rizky; Ferly Fikri Ramadhan; Fajar Paundra
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.372

Abstract

This report discusses the operational and maintenance processes of a screw-type chiller at Plaza PT XYZ. Chiller systems are crucial for maintaining the temperature in multi-story buildings, especially in tropical countries like Indonesia. The methods used in data collection include direct observation, interviews, and literature research on cooling systems were conducted during the practical work. While modular chillers are used outside working hours to save energy, screw chillers were chosen for their efficiency and high cooling capacity. The primary focus in maintaining system performance is regular maintenance, including preventive and corrective measures. These activities enhance understanding of the application of Heating, Ventilation, and Air Conditioning (HVAC) systems in the business world and highlight the importance of proper maintenance management to ensure buildings operate comfortably and efficiently.
RANCANG BANGUN GRATE PADA ALAT INSINERATOR Faisal Asnan; Sigit Mujiarto; Suyitno
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.374

Abstract

Waste is a major issue in Indonesia, with production exceeding 67 million tons annually. One effective method for waste treatment is combustion using an incinerator. This study aims to design and build a grate as an additional component to improve the efficiency of the combustion process in an incinerator. The designed grate consists of three main parts: a manual actuator, a drying staircase, and a combustion chamber. The design was created using AutoCAD and SketchUp software, and experiments were conducted using three types of waste: dry, wet, and mixed. The test results show that the addition of the grate accelerates the combustion process and enhances user safety. The highest combustion rate was achieved with dry waste at 2.95 grams/second, followed by wet waste (2.50 grams/second), and mixed waste (2.10 grams/second). The grate also helps reduce moisture content before the waste enters the combustion chamber, contributing to smoke reduction and improved combustion efficiency. This design is expected to offer a practical and efficient solution for small to medium-scale waste management.
PENGARUH VARIASI DIAMETER PULI DAN KECEPATAN PUTAR BLOWER TERHADAP KAPASITAS HASIL DAN EFISIENSI MESIN PERONTOK PADI TIPE DRUM TERTUTUP Nanda Gitara Rizkinada; Ikhwan Taufik; Raka Mahendra Sulistiyo
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.376

Abstract

The closed drum type rice thresher has constraints on the speed of the cylinder which is less than optimal, thus affecting threshing capacity and efficiency. This study aims to analyze the effect of pulley diameter variation (250, 300, 350 mm) and blower speed (500, 600, 700 rpm) on the performance of rice thresher using Ciherang rice variety. Airflow simulation was conducted with SolidWorks to determine the optimal direction and speed. The simulation results were validated with a small difference from direct measurement (0.128-0.475 m/s). Multiple linear regression analysis of 27 samples showed a simultaneous effect of pulley diameter and blower speed on yield capacity of 88.9% and threshing efficiency of 76.2%. The best combination was 300 mm pulley and 500 rpm blower with a capacity of 516,2 kg/hour and efficiency of 97,16%. In conclusion, variations in transmission and blower speed have a significant effect on the performance of the rice thresher.  
ANALISIS PENGEMBANGAN GEROBAK TARIK MOTOR BERBASIS DESAIN MODULAR UNTUK MENINGKATKAN MOBILITAS DAN KONSTRUKSI YANG AMAN DALAM BERNIAGA Bilnadzary Rahmatullah; Abdul Rohman; Eli Novita Sari; I Gusti Ngurah Bagus Catrawedarma; IGNA Satria Prasetya D W
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The development of mobility in the commercial sector drives innovation in transport tools such as motorized tow carts. This study analyzes three support frame design variations using Aluminum 6063 and Finite Element Analysis (FEA). A static load of 3,924 N was applied evenly at three points along the -Y axis. Simulation results showed that Variation 1 generated a maximum Von Mises stress of 43.409 MPa, deformation of 0.62483 mm, and safety factor of 4.9529. Variation 2 yielded stress of 35.493 MPa, deformation of 0.66134 mm, and safety factor of 6.0575. Variation 3 yielded 35.487 MPa, 0.66071 mm, and the highest safety factor of 6.0586. All values remain below the material’s yield strength of 215 MPa and above the minimum required safety factor of 1.25. Variation 3 is deemed optimal.
ANALISIS KEKUATAN MEKANIK SERAT KELAPA BERMATRIK UNSATURATED POLYESTER DENGAN VARIASI LAMANYA WAKTU PERLAKUAN ALKALI NaOH DAN KOH Muhammad Fauzan Nurhidayat; Sri Hastuti; Faiz Listyanda
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Composite materials have received attention from automotive industry players. An interesting raw material to be developed is coconut fiber waste which is abundant in Indonesia as a tropical country. The study aims to analyze the mechanical strength of coconut fiber-unsaturated polyester BQTN-EX 157 composite with volume fraction of 30%: 70%, fabricated using hand lay-up method of random fiber orientation with 15mm fiber length. This study has three variations of alkalization treatment length; 4 hours, 6 hours, and 8 hours treatment. Alkalization uses 5% NaOH and 5% KOH solutions. The tests used ASTM D6110 charpy impact test and ASTM D638 tensile test. The 6-hour KOH immersion treatment had the highest absorption energy of 4.9085 Joules and the 4-hour KOH immersion treatment had the highest impact price of 0.052 J/mm2. The 6-hour KOH immersion treatment received a tensile stress value of 13.60 MPa with the highest elastic modulus of 852.79 MPa. Observation of specimen fracture shows the presence of fiber pullout, voids, brittle fracture, rich matrix and others.
PERANCANGAN MESIN PEMIPIL JAGUNG SEMI-OTOMATIS DILENGKAPI SISTEM VAKUM yeremia bagas setiawan; Nurhadi; Trisma Jaya Saputra
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

"Maize (Zea mays L.) is a staple crop widely cultivated in tropical regions. Before processing, maize needs to undergo a threshing process to separate the seeds from the cobs. Manual threshing often requires significant time and labor, so a more efficient tool is needed. This study aims to design a semi-automatic maize thresher equipped with a vacuum system to help clean debris during the threshing process. The research method includes a literature review, numerical calculations, 3D design using SolidWorks 2022, and static simulation to analyze stress, deformation, and safety factor of the frame. The machine is designed with a frame size of 1360 × 540 × 800 mm and uses a 5.5 hp gasoline engine. The frame material uses ASTM A36, with loading on the engine and component supports. The simulation results show a von Mises stress of 80.38 MPa on the engine frame and 5.19 MPa on the component frame, with maximum displacement of 1.80 mm and 0.01 mm. The safety factor value of 3.11 indicates that the design is safe."
SELEKTIVITAS HIDROKARBON PADA SINTESIS FISCHER–TROPSCH BERBASIS SYNGAS KULIT KOPI MENGGUNAKAN SOFTWARE ASPEN PLUS Benazir Zulfana Anwar; Arif Rahman Saleh; Rany Puspita Dewi; Tri Retno Setiyawati
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.418

Abstract

Indonesia’s continued dependence on non-renewable fossil energy sources contrasts with the underutilization of New and Renewable Energy (NRE), despite its abundant resource availability. One promising yet underexploited NRE source is coffee husk biomass, which is generated in large quantities as a by-product of plantation activities. This study aims to analyze hydrocarbon selectivity in the Fischer–Tropsch (FT) synthesis process using syngas derived from coffee husk gasification through thermochemical modeling in ASPEN Plus. Simulations were conducted at an operating temperature of 240ºC and a pressure of 25 bar using various thermodynamic methods. The results indicate that the product distribution is dominated by heavy hydrocarbons (C₅⁺), with selectivity values of 9.881% for the Grayson model, 5.341% for BK10, and the highest value of 1.333×10¹% obtained using the Peng–Robinson equation of state, while light hydrocarbons exhibit selectivity in the order of 10⁻⁶–10⁻³. The Peng–Robinson model demonstrates the most representative performance for predicting liquid heavy hydrocarbons from biomass-based Fischer–Tropsch synthesis.
FABRIKASI MESIN CUP SEALER SEMI OTOMATIS DENGAN KAPASITAS 4 CUP Abdul Hakim; Herru Santoso Budiono; Sigit Joko Purnomo
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v13i1.422

Abstract

The rapidly growing packaging industry is driving the need for efficient technology for MSMEs. However, manual cup sealers on the market often result in loose seals and low productivity. This research aims to design and test a microcontroller-based, semi-automatic, 4-cup cup sealer to improve circuit neatness, system response, and seal quality stability. The method used is tool engineering through an experimental approach, encompassing literature review, design, manufacturing processes (welding, turning, assembly), and testing of temperature and time variations. Test results indicate optimal performance is achieved at a temperature of 180–185°C with a pressing time of 4 seconds. This machine has been proven to improve production efficiency and quality consistency, making it an affordable technological solution for MSMEs and a foundation for future production capacity development.
PERENCANAAN ALAT PENGAYAK PASIR DUA MESH UNTUK PEMISAHAN MATERIAL Ardi Taufik Hidayat; Bayu Handika S; Muhammad Hasan Basri
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sand is a widely used building material, used from the structure's bottom to the top of the building. Good as a dune mix or a concrete mixture. The high demand for residential buildings or shops that require sand as a raw material increases the need for supporting equipment to maximize processing time; one necessary supporting tool is the sand sowing machine. This machine uses 3 (three) levels, which are on the first level to filter gravel, the second level for fine sand between 12-30 mesh, third level for residual in the form of dust sand. In the design of this sieving machine, there is also an eccentric shaft that serves to regulate the forward and backwards movement so that the sifting process can take place. The engine is planned to use a 0.5 kW motor with a rotation of 1500 rpm, while the engine rotation is designed for 300 rpm to sieve the sand with a capacity of 1 m³/minute.

Page 28 of 28 | Total Record : 279

 24   25   26   27   28 

Filter by Year

2014 2026


Reset
Filter By Issues
All Issue Vol. 13 No. 1 (2026) Vol. 12 No. 2 (2025) Vol. 12 No. 1 (2025) Vol. 11 No. 2 (2024) Vol. 11 No. 1 (2024) Vol. 10 No. 2 (2023) Vol. 10 No. 1 (2023) Vol. 9 No. 2 (2022) Vol. 9 No. 1 (2022) Vol 9 No 1 (2022) Vol. 8 No. 2 (2021) Vol 8 No 2 (2021) Vol 8 No 1 (2021) Vol 7 No 2 (2020) Vol 7 No 1 (2020) Vol 6 No 2 (2019) Vol 6 No 1 (2019) Vol 5 No 2 (2018) Vol 5 No 1 (2018) Vol 4 No 2 (2017) Vol 4 No 1 (2017) Vol 3 No 1 (2016) Vol 2 No 1 (2015) Vol 1 No 1 (2014) More Issue