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IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Published by CV. IRA PUBLISHING
ISSN : -     EISSN : 29624290     DOI : https://doi.org/10.56862/irajtma
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) fokus pada artikel ilmiah hasil penelitian dan review dalam bidang teknik mesin dan aplikasinya yang antara lain meliputi: 1. Konversi energi 2. Mekanika 3. Material 4. Manufaktur 5. Lain-lain yang relevan
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 157 Documents
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Uji Kinerja Burner LPG Mesin Stirling dengan Variasi Tekanan Bahan Bakar Jufrizal, Jufrizal; Mawardi, Mawardi; Ramadhan, Fandy
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.836 KB) | DOI: 10.56862/irajtma.v1i2.18

Abstract

This paper is the result of initial research on the development of an LPG burner planned for the Gamma-type Stirling engine. The purpose of this study was to determine the effect of variations in fuel pressure on flame temperature and mass flow rate of fuel in LPG burners. This research method was carried out experimentally by varying the fuel inlet pressure on the regulator to the LPG burner from high to low. The LPG fuel used is 3 kg LPG produced by PT Pertamina (Persero). The pressure drop in the LPG gas tanks was varied and observed in a range of values between 20-17.5 kg/cm2, 15-12.5 kg/cm2, and 10-7.5 kg/cm2. In testing 20-17.5 kg/cm2, 15-12.5 kg/cm2, and 10-7.5 kg/cm2 the average fire temperature is 724.6°C, and 743.6°C respectively. , 631.4°C. Meanwhile, the mass flow rate of the fuel according to the order of pressure variations was 0.131 kg, 0.264 kg, and 0.162 kg respectively for 1 hour of testing. The temperature and mass flow rate of the fuel produced will be the basis for consideration in the Stirling engine design.
Uji Kinerja Burner Gas LPG Mesin Stirling dengan Variasi Laju Aliran Udara Jufrizal, Jufrizal; Siregar, Zufri Hasrudy; Saktisahdan, Tengku Jukdin; Putra, Bintang Kelana; Syahputra, Muhammad Novrin Rizky
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.299 KB) | DOI: 10.56862/irajtma.v1i2.19

Abstract

A burner is a tool used to heat the heater as a source of initial heat whose heat functions to drive the Stirling engine. The burner used in this test is self-designed. The purpose of this study was to determine the temperature profile, fuel consumption used, power on the burner, and the efficiency of the Stirling engine burner with variations in air flow rates. Variations in the airflow rate used in this study were 2 m/s, 2.5 m/s, and 3 m/s. This research method was carried out experimentally and analyzed by the water boiling test method. The results of the three variations of air flow rate show that the highest temperature occurs in the Stirling engine burner with an airflow rate of 3 m/s of 813,815℃, for fuel consumption with variations in air flow rate of 343 gr, Stirling engine burner power with variations in air flow rate 2 m/s, 2.5 m/s, and 3 m/s produce the same power of 4.48 kW, and the highest efficiency on the Stirling engine burner is obtained at an airflow rate of 3 m/s of 38.33%.
Analisa Perilaku Aliran Panas Pada Permukaan Desain Heatsink Dengan Menggunakan Software ANSYS Aldori, Yopan Rahmad; Pangestu, Reno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.907 KB) | DOI: 10.56862/irajtma.v1i2.24

Abstract

The heatsink is a passive heat transfer device used in an electronic component that has a role as a cooler in the system by utilizing heat distribution and being discharged through the fin gaps on the heatsink, in this article we will discuss analyzing the flow behavior of a heatsink using software ANSYS with a variation of design, the simulation carried out is conditional on placing a heatsink on the surface of a system with a heating temperature of 75oC, with a room temperature of 25oC. In this simulation, various designs will be carried out on the heatsink fins, and the design with the largest heat distribution in this article is design (c) with the simulation results of a flux therma gradient of 7152 W/m2.
Sistem Level Kontrol Menggunakan Differential Pressure Transmitter untuk Tangki Timbun CPO Mansyur Mansyur; Said Hanief; Yunianto Yunianto
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 3 (2022): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i3.25

Abstract

The use of instruments at this time is very much needed, especially in industry. One example of an instrument is a transmitter, where the transmitter consists of an electrical transmitter. The transmitter is a device used to convert physical signals into instrument signals or send signals from the transmitter (sensor) to the controller and from the controller to the final controller. In this case, we will discuss the measurement of CPO liquid level, where what is measured is the height of CPO liquid using an electric differential pressure transmitter, which is equipped with other instrumentation equipment such as recorders, transmitters, digital manometers, DC voltage sources, pressure gages, compressors, air regulators. . From level measurement using an electric differential pressure transmitter, the results of the level measurement are proportional to the physical pressure, where the 6000 mm tank level has an instrument signal of 20 mA. The 0 mm tank level has an instrument signal of 4 mA.
Pengaruh Tekanan Terhadap Deflection dan Shear Stress Helical Compression Spring Pada Press Pallet Irwansyah Irwansyah
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 3 (2022): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i3.26

Abstract

The author describes the object of observation in this final work as the helix compression spring. The helix compression spring is used to reduce pressure, and it works based on the amount of compressive force exerted by the press plate on the pallet. The pallets used are nine types of pallets with three main paper sizes, namely A4, F4, and B5. This observation aims to study the extent of the relationship between the variables of pressure, deflection, and spring shear stress. Based on the results of the discussion obtained, the pallet that receives the most significant compressive force, deflection, and shear stress is the F4 5 plate pallet, and the pallet that gets the minor compressive strength, deflection and shear stress is the B5 3 plate pallet. This proves that the pressure is directly proportional to the deflection and shear stress of the spring.
Analisis Metode Split Tensile Test Komposit Laminat Jute Terhadap Kekuatan Tarik Belah Beton Kolom Silinder Hidayat, Nurul; Jusuf Zulfikar, Achmad; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.14

Abstract

Composite materials have experienced quite rapid development as new alternative materials to replace metal materials. The concrete structure is the main structure of a building and will experience a decrease in its mechanical strength over time. In this study, laminated composite materials from woven jute fabrics will be used as reinforcement for concrete structures. The purpose of this study was to obtain the tensile strength of cylindrical column concrete (BKS) reinforced by laminated jute composite (KLJ) using the split tensile test method, to analyze the validity of the test results using the normally distributed data method (DTN), and to analyze the tensile strength of BKS reinforced KLJ based on test results of the split tensile test method. The split tensile test uses the ASTM C496 standard with a variety of layers from 1 layer to 4 layers of KLJ. Each variation was tested 3 times. KLJ casing printing on BKS uses the Vacuum Bagging method. As a comparison, 3 specimens without KLJ casing were prepared as control specimens. The results of the investigation showed that the application of the KLJ sheath to the BKS resulted in an increase in the split tensile strength of the BKS at 1, 2, 3, and 4 KLJ sheaths by 62%, 166%, 200%, and 330% respectively. Thus, the provision of a KLJ sheath has the potential to strengthen the BKS structure.
Analisis Kekuatan Tarik Komposit Laminat Jute Berdasarkan Pola Kerusakan Kolom Silinder Metode Split Tensile Test Al Rasyid, Al Rasyid; Jusuf Zulfikar, Achmad; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.15

Abstract

The purpose of this study is to obtain the damage pattern of cylindrical column concrete specimens (BKS) reinforced with laminate jute composite (KLJ) based on the results of the Split Tensile Test, to determine the phenomenon of applying laminated jute composite reinforcement to cylindrical column concrete on the percentage of crack patterns ( PPR) specimens, and analyze the comparison between split tensile strength (KTB) and PPR. The test specimens were printed based on the ASTM C496 test standard using the Vacuum Bagging method. Specimen variations consist of 1 to 4 layers of KLJ and one variation without KLJ sheath as a control specimen. The split tensile test used the UTM test tool with each variation being carried out with 3 repetitions. PPR observations and calculations were carried out with the help of Adobe Photoshop software. The results of the study show that the greater the KTB value, the greater the PPR that occurs. The increase in PPR in each KTB is reported in this article.
Analisis Metode Split Tensile Test Komposit Laminat Hybrid Jute E-Glass Akibat Beban Tarik Beton Kolom Silinder Tambusay, M. Ibnu; Zulfikar, Achmad Jusuf; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.16

Abstract

In this study, reinforcement of the concrete structure was done by coating it with a laminate composite material from a combination of reinforcement from natural materials (woven jute cloth sheets) and synthetic materials (woven e-glass fiber sheets). The purpose of this study was to determine the split tensile strength of cylindrical column concrete (BKS) using the split tensile test method due to the application of e-glass laminate hybrid composite sheath (KLHJG), to analyze the validity of the data using the normally distributed data method (DTN). on the results of the shear strength test of the KLHJG sheath as reinforcement for BKS, and analysis of the effect of applying KLHJG's sheath on the tensile strength of BKS. Specimens were printed based on the ASTM C496 test standard by immersion in clean water for 28 days and drying in the open air for 28 days. The KLHJG variation consists of JGJ, JJG, JJJG, JGJG, and GJGJ. Each variation consists of 3 repetitions of the test. The process of providing KLHJG casings to BKS uses the Vacuum Bagging method. Data validity uses the probability density function method. The results of the study show that the provision of KLHJG can increase the split tensile strength by up to 800%. Thus, the KLHJG application has the potential to be applied as a BKS booster.
Analisis Kekuatan Tarik Belah Komposit Laminat Jute sebagai Penguat Beton Kolom Silinder Berdasarkan Metode Penyerapan Energi Bahan Lubis, Pramdya A.T.; Zulfikar, Achmad Jusuf; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.21

Abstract

The purpose of this study is to calculate the amount of energy that can be absorbed (toughness) of the material based on the graph of the results of the split tensile test of cylinder column concrete specimens (BKS) reinforced with laminated jute composite (KLJ) and analysis of the comparison between split tensile strength (KTB) and material toughness from the results split tensile test of BKS specimen reinforced by KLJ. The test specimens were printed based on the ASTM C496 test standard using the Vacuum Bagging method. Specimen variations consist of 1 to 4 layers of KLJ and one variation without KLJ sheath as a control specimen. The split tensile test used the UTM test tool with each variation being carried out with 3 repetitions. Calculation of Material Toughness Energy (EKB) using the Trapezoidal Numerical Integration method. The results of the study showed that giving KLJ boosters to BKS was able to increase EKB up to more than 1000% starting with 2 layers of sheathing. Thus the provision of KLJ to BKS can be recommended as a strengthening material for concrete column structures.
Pengaruh Kombinasi Cangkang Kemiri Dengan Tempurung Kelapa Terhadap Nilai Kalor Briket Idris, Muhammad; Hermawan, Indra; Sihombing, Verianto
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.22

Abstract

Energy demand in the world continues to increase in line with population growth and economic growth. Biomass is a renewable energy source that comes from living things which include plants, animals and their by-products such as garden waste, crops and so on. The mass of 0.0002 kg is the mass of the briquettes allowed on the bomb calorimeter test equipment, the test was carried out nine times for each variation of the mixture, where there were three variations of the mixture in the test, namely level 1 variation of the mixture of 25% candlenut shell charcoal, 65% coconut shell charcoal and 10% starch, level 2 variation mix 65% candlenut shell charcoal, 25% coconut shell charcoal and 10% starch, level 3 mixed variation 45% candlenut shell charcoal, 45% coconut shell charcoal and 10% starch . Briquettes are fuel that is compacted and formed in molds. The results of the analysis data were obtained using Minitab20 with product optimization of the Taguchi method. The optimum LHV value of the briquettes recommended by Taguchi was obtained from the mixed variation level 2 briquettes, namely 65% ​​candlenut shell charcoal and 25% coconut shell charcoal with an adhesive concentration of 10%, obtained a heat of 23884.252 kJ/kg against the uncontrol factor during briquette drying, namely speed wind 0.5 m/s, ambient temperature 37.4 °C, with air humidity 46% while in laboratory observations the optimum LHV value was in level 3 mixed variation briquettes with a value of 32054.208 kJ/kg with mixed variations namely 45% candlenut shell and 45% coconut shell charcoal with an adhesive concentration of 10% starch.

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