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AUSTENIT
Published by Politeknik Negeri Sriwijaya
ISSN : 20851286     EISSN : 26227649     DOI : https://doi.org/10.53893/austenit
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
AUSTENIT (pISSN 2085-1286 and eISSN 2622-7649) is a peer-reviewed open access journal published by Mechanical Engineering Department, Politeknik Negeri Sriwijaya. Focused on original articles in the form of technical and vocational research results or literature review which provides insight in the field of mechanical engineering and machinery that includes Mechanical Structure, Manufacturing, Metallurgy Sciences and Engineering, Design Engineering, Maintenance and Repair Engineering, Fluid Dynamics, HVAC (Heating, Ventilation and Air Conditioning), Heat-Mass Transfer, Sustainable Renewable Energy, Mechatronic and Control Systems or as well as other related Mechanical Engineering field study.
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Articles 225 Documents
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PEMBUATAN MESIN PENGUPAS DAN PEMERAS TEBU: PEMBUATAN MESIN PENGUPAS DAN PEMERAS TEBU Veranika, Rita Maria; Madagaskar, Madagaskar; Aprilyanti, Selvia; Aprianti, Tine
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i1.4600

Abstract

Sugarcane is one of Indonesia's agricultural commodities which is quite large in production, sugarcane processing in Indonesia is usually used as sugar and flavoring, but sugar cane is also used by the community as a raw material for beverages, namely sugarcane ice. Sugarcane grinding machines or sugarcane squeezer machines are using for the process of separating sugarcane juice from sugarcane stem fiber, with the help of a sugarcane squeezer machine it will produce a lot of sugarcane juice, and only requires a short working time. The use of a sugar cane squeezer machine for producing sugar and making ice cane with a small-scale machine, so that it does not require space and a complicated process, this machine is very suitable for small and medium scale sugarcane processing industry. The purpose of this research is to design and manufacture a sugarcane squeezer machine using a combustion engine. The implementation method in the manufacture of this machine uses a propulsion system including combustion motors, pulleys, v-belts, gears, shafts, pegs, rollers and bearings. The results obtained from the design and manufacture of this sugarcane squeezer machine are that the energy and time that have been used are more efficient and the sugarcane processing is faster than manually. The design specifications of the tool are 0.5Hp engine capacity, 220 volt voltage and 2500 rpm rotation. Testing of the sugarcane juice machine is carried out to find out the results of the design can function according to the expected design
STIRLING ENGINE: FROM DESIGN TO APPLICATION INTO PRACTICE AND EDUCATION Thanh Le, Hien; Nghia, Huynh Hoang; Huy, Bui Minh; Phu, Vu Thanh; Quyen, Vy Bui Hoang
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i1.4601

Abstract

Stirling motor is a type of outside ignition heat motor that can utilize various fuel sources from customary structures (coal, oil, kindling, rice husk, and so forth) to sustainable power sources (sun-oriented energy), climate, squander heat usage, and so forth). The article centers around introducing the fundamental highlights of the improvement history, activity qualities, and plan techniques for certain sorts of Stirling motors, in this way offering useful appropriateness as well as a college preparing for understudies. The understudy studying Thermal Engineering in our nation today.    
AN AQUACULTURE DISRUPTED BY DIGITAL TECHNOLOGY Setiyowati, Harlis; Thalib, Supriadi; Setiawati, Ratna; Nurjannah, Nurjannah; Akbariani, Nurhaliza Vania
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i1.4608

Abstract

Fish farming as a primary protein source is significantly more efficient than other protein sources, and demand for fish continues to climb. The future of fish farming is brighter, more traceable, and more profitable. This research aims to learn everything there is to know about the Internet of Things (IoT) systems, including their technology, protocols, and potential hazards. According to the literature, 3D printing, robotics, drones, sensors, artificial intelligence, augmented reality (AR), virtual reality (VR), and blockchain are the digital technologies affecting aquaculture. A wide range of industries is adapting and using it.
Coverage Vol. 14 No. 1 Journal, AUSTENIT
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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

Abstract

AUSTENIT sebagai media untuk menjembatani hasil riset terapan dan vokasional berupa karya ilmiah dari tulisan-tulisan hasil penelitian atau kajian pustaka para Akademisi, Peneliti, Praktisi, Profesional dan Mahasiswa yang belum pernah diterbitkan dalam media lain di bidang ilmu Teknik Mesin dan Permesinan yang meliputi bidang kajian Perancangan dan Rekayasa Produk, Konversi Energi, Teknik Metalurgi dan Sains, Kontruksi, Teknik Perawatan dan Perbaikan Mesin, Energi terbaru dan keberlanjutan, serta Mekanisasi-Kontrol. Pada Volume 14 Nomor 1 terdapat 11 artikel, yang ditulis oleh Akademisi Luar Negeri dari Dong Nai Technology University; Viet Nam, the University of Western Australia serta Akademisi Dalam Negeri dari Universitas Islam Sumatera Utara, Universitas Pradita, Universitas Pancasila, Universitas 17 Agustus 1945, Universitas Wijaya Putra, Universitas Sriwijaya, Universitas Negeri Malang, Universitas Tridinanti, Politeknik Caltex Riau, Politeknik Manufaktur Bandung, Politeknik Negeri Semarang, dan Politeknik Negeri Sriwijaya. Setiap artikel Ilmiah yang dimuat pada AUSTENIT telah diseleksi oleh dewan redaksi dan telah melewati tahapan single blind reviewer oleh Mitra Bestari yang kompeten dibidangnya. Diharapkan, Edisi ini dapat dijadikan referensi dan memberikan sumbangsih keilmuan bagi pembacanya. Salam Hangat,RedaksiPalembang, April 2022
PENGARUH VARIASI TEKANAN SUCTION TERHADAP KINERJA AC MOBIL Wardika, Wardika; Setiawan, Aa; Suwandi, Dedi; Casinih, Casinih
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4534

Abstract

A refrigerant is a functioning liquid that flows in the refrigeration cycle which causes a cooling effect on the refrigeration machine. This study aims to determine the impact of refrigerant suction pressure on the performance of car air conditioners. The refrigerant pressure in the refrigeration system can increase and decrease the performance of the A/C system. The test was carried out by varying the 3 refrigerant pressures, 10psi, 20psi, and 30psi on the Car AC trainer testing tool. Based on testing and data processing, the system efficiency performance at 10psi pressure is 81.26%, at 20psi pressure is 81.27% and at 30 psi pressure is 82.13% with actual COP of 6.98, 7.24, 7.36, and Carnot COP of 8.56 respectively. , 8.92, 8.95. Then the impact of changes due to pressure variations in the system on cabin temperature is 22.52℃, 23.01℃, and 23.45℃, respectively. Changes in refrigerant pressure in the car AC engine will affect system performance, where the more significant the suction pressure is given, the efficiency, and the COP value will increase as well as the compressor work and the cabin temperature will increase.
OPTIMASI PARAMETER MESIN PRINTER 3D TERHADAP KEKASARAN PERMUKAAN PRODUK MATERIAL ABS MENGGUNAKAN METODE TAGUCHI Karuniawan, Bayu Wiro; Rachman, Farizi; Yoningtias, Mega Tri
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4631

Abstract

The examination was directed utilizing 3D Printer FDM (Fused Deposition Modeling) Ender-3 Pro with different mixes of boundaries. Choice of boundaries for 3 kinds of boundaries (Layer level, infill example, and spout temperature), every boundary fluctuated by 3 varieties. The material utilized is ABS (Acrylonitrile Butadiene Styrene) material. The examination strategy utilizes the Taguchi technique. Plan of Experiment involving the Taguchi technique as an orthogonal matrix L9(34) with three replications. The resulting response is only surface roughness. Tests produce the ideal boundaries: layer height 0.1 mm, infill pattern is line pattern and nozzle temperature 240°C. The layer height parameter result a contribution percentage of 99,63%, infill pattern 0,04%, and nozzle temperature 0,15%.
MODIFIKASI TABUNG DAN KARET PADA MESIN PENGUPAS BAWANG MERAH SISTEM HORIZONTAL Prayogo, Agung Pangestu; Saparin, Saparin; Wijianti, Eka Sari; Setiawan, Yudi
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4640

Abstract

This research about how to modify a machine that peels onions. The method used is Reverse engineering. This machine was modified because there is a shortage, level of success onion-peeler machine is still low, with value 43.63%, safety level machine is not sufficient, and the diameter of peeler tube hole is too large, so it is not effective and efficient. Modification made for to improve the efficiency of peeling shallots. The modified part is the rubber and the diameter of the peeler hole. Tube-hole size changed from 16mm to 6mm. will use the Shaft On the stripper tube. The shaft works like a holder for a rubber peeler. There are 11 pieces of peeling rubber. The results of the study showed that the peeled onion was 755 grams after 20 minutes. The machine's actual capacity is 37.75 grams per minute, or 2.26 kg per hour. The machine's production efficiency is 75.5%.
MATERIAL SELECTION AND MECHANICAL PROPERTIES IN LEAF SPRING APPLICATION: A REVIEW Utami, Nurhabibah Paramitha Eka; Mahendra, Nanda Yusril; Akbar, Imam; Gunawan, Gunawan; Romli, Romli; Fatoni , Zulkarnain; Pratiwi, Diah Kusuma
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4878

Abstract

In the industrial world, leaf springs are an important component of vehicles. Therefore, material selection is very influential in producing good mechanical properties that can affect leaf spring performance. In this review article, the author aims to review and compile articles on relevant previous studies to compare the best alternative materials other than steel that meet the criteria for the application of leaf springs. The review method used in this article is to search for articles that are relevant to the keyword material, leaf springs, and mechanical properties. After that, the author will collect articles and choose articles that have the criteria to be reviewed. Then the articles that meet the criteria will be reviewed by extracting the data to the review table. As a result, 24 articles will be reviewed. Then the author will extract data on each article, namely material, tensile strength, and flexure. Flexural and tensile strength are used as quality criteria for each material. The conclusion of the review article obtained is that carbon/epoxy has the potential as an alternative steel material because carbon/epoxy has the highest tensile strength with a value of 1841MPa, and flexural strength with a value of 1646.7MPa is close to steel as shown in the review table. However, further research is needed, such as proper design and more efficient manufacturing methods to produce innovative leaf spring components with high quality and acceptable quality in the industry.
Pengaruh Carburizing Arang Tulang Sapi Terhadap Peningkatan Kekerasan Egrek Produk Pande Besi Desa Tanjung Pinang Sailon, Sailon; Seprianto, Dicky; Andika, Ekki
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4922

Abstract

The egrek must have a tough hardness in the eyes of the egrek, but the craftsman there is criticism by consumers regarding the quality of his sharpness and toughness, therefore. The purpose of this study is to determine the effect of carburizing cow bone charcoal on increasing the egrek hardness of blacksmith products in Tanjung Pinang Village. This research method is a pack carburizing experiment using cow bone charcoal with temperature variations of 850°C, 900 °C, and 950°C and a containment time of 30 minutes, 45 minutes, and 60 minutes. The results of this study prove that the composition of the egrek material of blacksmith products with an elemental carbon value of 0.414% and pack carburizing using cow bone charcoal affects the hardness, the top surface hardness value at a temperature variation of 950°C with a 60-minute containment time of 59.2 HRC. Temperature is very influential in carrying out pack carburizing against the increase in surface hardness.
THE EFFECT OF VARIATIONS SPEED OF THE CONDENSER FAN WITH CONTROL FREQUENCY INVERTER ON THE ICE SLUSH MACHINE APPLICATION Muliawan, Rizki; Septyansah, Septyansah; Khakim, Nur; YP, Bowo; Falahuddin F, MA; Azmy, Ilham
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4955

Abstract

The condenser is one of the main components in the ice slush machine system that functions to removed heat from the system to the environment. In this system, the condenser is equipped with a fan whose rotation speed is modified using an inverter that aims to determine the system performance and condenser capacity at each fan rotation variation of the ice slush machine. There are 3 variations of frequency settings in this system 50 Hz, 40 Hz, and 30 Hz, with equivalent velocity air 3.6, 2.9, and 1.9 m/s respectively. In this study, the performance of the ice slush machine with various condenser fan speed settings was studied including, how long the product temperature is reached, condenser capacity, actual COP, efficiency, and electrical power. The test results show that the fastest product temperature is reached when using a fan speed setting of 1397 rpm, which is 145 minutes with a condenser capacity of 42.36 kW. The highest actual COP is obtained from the fan speed set at 1397 rpm of 2.58 with an efficiency of 57.5% and electrical power consumption of 269.64 W. The fan speed setting at 1090 rpm has a condenser capacity of 33.78 kW, COPactual of 2.46 with an efficiency of 56.2%, and electric power consumption of 272.09 W. The fan speed setting at 711 rpm has a condenser capacity of 21.73 kW, an actual CO of 2.15 with an efficiency of 49.2%, and electric power consumption of 312.71 W.

Page 18 of 23 | Total Record : 225

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