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Betti Ses Eka Polonia
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INDONESIA
INJECTION: Indonesian Journal of Vocational Mechanical Engineering
Published by Politeknik Negeri Ketapang
ISSN : -     EISSN : 27754995     DOI : https://doi.org/10.58466/injection.v1i2.117
Core Subject : Economy, Science, Engineering,
Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Indonesian Journal Of Mechanical Engineering Vocational (INJECTION) adalah jurnal ilmiah yang dikelola secara profesional dan diterbitkan oleh Jurusan Perawatan dan Perbaikan Mesin, Politeknik Negeri Ketapang. Jurnal INJECTION sebagai media kajian ilmiah hasil penelitian, pemikiran dan kajian analisis-kritis mengenai penelitian yang berfokus pada ilmu teknik mesin dan inovasi teknologi atau rekayasa dengan upaya serta semangat untuk menyebarluaskan hasil dari penelitian-penelitian yang bermanfaat bagi masyarakat. Selain itu, juga sebagai bahan kajian dan referensi akademisi dalam bidang ilmu teknik mesin dan inovasi teknologi.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 1 No 2 (2021): Agustus 2021" : 7 Documents clear
STUDI KARAKTERISTIK FISIK DAN NYALA API BRIKET DAUN BAMBU Ikhwanul Qiram
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.994 KB) | DOI: 10.58466/injection.v1i2.89

Abstract

Briquettes are solid fuels derived from biomass waste obtained from the compression of the shaped powdered material. This study aims to obtain the physical characteristics and flame characteristics of leaf briquettes of Javanese bamboo (Gigantochloa Apus) and ori bamboo (Bambusa Arundinacea). The method used in this research is varying the pressing load of 5 kg, 10 kg, 15 kg, and the size of the briquette powder (particles) of 20, 40, 60, a cylinder-shaped mold with a diameter of 38 mm and an inner hole diameter of 9 mm. The analysis includes the characteristics of the fire products (area, color and temperature) and the surface morphology of the briquettes. The pressing load affects the characteristics of the resulting flame. The results showed that the type of bamboo, the size of the biomass particles and the pressing load affected the characteristics of the flame.
EFFECT OF MAGNESIUM TREATMENT PROCESS ON THE PRODUCING COMPACTED GRAPHITE CAST IRON WITH DIFFERENT CASTING THICKNESS Wiwik Purwadi; Tama Ramadhani; Betti Ses Eka Polonia; Yusuf Yusuf
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.152 KB) | DOI: 10.58466/injection.v1i2.117

Abstract

Strength, toughness, machinability and damping capacity are properties of compacted graphite iron that distinguish the properties between flake graphite cast iron and spheroidal cast iron. The formation of compacted graphite can be set to achieve the required specification. The formation of compacted graphite is started from spheroidal to compacted cast iron. The residual magnesium after magnesium treatment and the solidification rate have a significant role in the formation of compacted graphite. The high content of residual magnesium can obstruct the graphite plane to grow during the transformation from spheroidal to compacted shape. In addition, the cooling rate of the casting can be controlled by varying the casting thickness. The compacted graphite in the cast iron are characterized according to shape, size and distribution. The optimum compacted graphite in the cast iron that can be produced has 30 mm of casting thickness with 0.017 % of residual magnesium.  
PENGARUH KOMPOSISI SERAT KENAF DAN SERBUK CACO3 TERHADAP KEKUATAN TEKUK DAN WATER ABSORPTION KOMPOSIT HYBRID-POLIESTER Alfian Hudan Laksana; Marhadi Budi Waluyo
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.886 KB) | DOI: 10.58466/injection.v1i2.126

Abstract

The reinforcing composition in hybrid composite can affect the material properties. Kenaf fiber (Hibiscus Cannabinus L.) can be used as a reinforcement for hybrid composites with high advantage. Calcium carbonate serves as a reinforcement for composite materials and was useful for increasing stiffness. The purpose of this study was to analyze the effect of variations in the composition of the addition of kenaf fiber and CaCO3 powder on the flexural strength and water absorption properties of the calcium carbonate reinforced kenaf fibers/polyester hybrid composites (PTJ/SK/CaCO3) made by hand layup method. Hybrid composites were made with various compositions of CaCO3 (0%, 2.5%, 5%, 10%, and 20% by weight). The results showed that the PTJ/SK/CaCO3 (5%wt) hybrid composite had the highest flexural strength with a value of 74.87 MPa. The increase in the amount of CaCO3 powder composition showed a decrease in the water absorption of the PTJ/SK/CaCO3 hybrid composite.
RANCANG BANGUN CONVERTER KIT SEBAGAI ALAT KONVERSI ENERGI SEPEDA MOTOR 100cc BERBAHAN BAKAR GAS LPG Rizal Justian Setiawan; Muhammad Sahid Fitrihartanta; Mujiono Mujiono; Didik Nurhadiyanto
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (574.483 KB) | DOI: 10.58466/injection.v1i2.128

Abstract

LPG is one of the Gas Fuel products that can be used as fuel to replace the use of Oil Fuel. Therefore, an energy conversion tool is needed to utilize LPG as a motorcycle energy source. The purpose of this research is to design and manufacture a gas motor converter kit. This converter kit has three technologies, such as a fuel distribution system using a manual fuel faucet, a solenoid valve that functions to cut off gas flow, and the position of the fuel tube under the seat. The research method using VDI2221 (Verein Deutcher Ingenieure). The research result is the creation of converter kits that are made through the design, turning, milling, welding, and assembling process. The research conclusion is the converter kits can be implemented on 100cc motorcycles, and no leaks or defects were found in the converter kits, so the tool can be used properly on motorcycles.
ANALISIS KEBOCORAN SISTEM HIDROLIK PADA LANDING GEAR PESAWAT AIRBUS A330 SERIES MENGGUNAKAN METODE PDCA Yudhi Chandra Dwiaji
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (703.581 KB) | DOI: 10.58466/injection.v1i2.129

Abstract

The landing gear of the Airbus 330 uses a green hydraulic system, which is currently still found several leaks which result in a decrease in flight safety because the propulsion force on the landing gear does not function normally so it must use the freefall system when landing. This study analyzes the events that cause leaks of the flexible hose system, swivel valve and pitch trimmer. Flexible hose in AircraftmMaintenance Manual has no limitations when a rapture occurs, while for swivel and pitch trimmers there are still limitations. The hydraulic system leak data was taken in January – December 2020 with a total of 49 cases of leaking hydraulic system cases in the landing gear area, where flexible hose has a very high leakage rate compared to other cases. To identify the causes of hydraulic system leaks, this study used ultrasonic internal leak measurement tools and hydraulic fluid analysis methods.
ANALISIS SISTEM KENDALI DUA POSISI PADA SOLENOID VALVE UNTUK PRODUK BIOGAS CONTROL AND MONITORING (COMMON-BIGOT) FROM ANIMAL WASTE Imam Arifin
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.595 KB) | DOI: 10.58466/injection.v1i2.131

Abstract

Biogas is gas produced by bacteria when organic matter undergoes a fermentation process under anaerobic conditions, and will produce methane gas which is temporarily stored in a container called a biogas bag. The biogas bag needs to be controlled to ensure the biogas bag remains safe. The control system is in the form of a two-position control because it has the advantage of being cheap and simple, besides that the solenoid valve as an actuator has a non-linear output property. To detect the capacity of the biogas bag, the HCSR-04 proximity sensor is used as feedback on the set point value that is set, which is 50 cm for the maximum set point and 30 cm for the minimum set point. The results obtained by the proximity sensor is able to read the distance with an accuracy of 5.8% and the On-Off control has a response of 0.25 seconds.
STUDI NUMERIK PENGARUH REYNOLDS NUMBER TERHADAP KARAKTERISTIK ALIRAN DAN PERPINDAHAN PANAS PADA SUSUNAN PIPA TIPE STAGGERED Yusuf Yusuf
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 2 (2021): Agustus 2021
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (672.809 KB) | DOI: 10.58466/injection.v1i2.315

Abstract

The characteristic of fluid-flow and heat-transfer on a circular cylinder with particular pattern is frequently used in various branches of modern technology today. The amount of heat transfer when fluid cureent passes through circular cylinder is expressed by Nusselt number parameter, eiter local Nusselt number (NuФ) or average Nusselt-number. Forced convection heat transfer on the circular cylinder with a staggered-type of using Reynolds-number (ReD) varied as the-value of 80, 200, 5000 while the tranverse-pitch (2D, 2D). The fluid inlet temperature entering shell is 350oK and the tube temperature is 300oK, which is modeled whith-Gambit 2.4.6 and simulated using Fluent-6.3.26 whith turbulent model k-w SST 2D steady-flow to obtain data related to the velocity profile and temperature distribution. From the simulation results obtained visualization contour of velocity, temperature and Nusselt number distribution. The smallest Nusselt value is at ReD 80 then ReD 200 and the highest is at ReD 5000.

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