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Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Published by Universitas Pancasila
ISSN : 26551861     EISSN : 27162923     DOI : https://doi.org/10.35814
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering
Jurnal ini mempublikasikan artikel ilmiah berbasis penelitian, studi kasus, articles review, rekayasa dan inovasi yang mencakup teoritis maupun praktis serta pengembangannya. Topik artikel ilmiah yang dimuat ASIIMETRIK mencakup bidang Arsitektur, Teknik Sipil, Teknik Industri, Teknik Informatika, Teknik Mesin dan Teknik Elektro.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 186 Documents
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Analisis Perbandingan Sistem Kinerja Motor Penggerak Pada Mobil Listrik Kapasitas 75 kWh Indriawan Viantama; Budhi Muliawan Suyitno
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2083

Abstract

Population growth and the increasingly rapid industrial technology to 4.0. So that there was an electric car with an electric motor as the driving force. At first, electric cars used a DC motor system. But the triumph of this DC motor is not long in coming because problems arise when compared to induction motors such as complicated maintenance, much higher prices, and heavier weight than induction motors. In an induction motor, the control is believed to be easier than a DC motor. The induction motor is believed to make it possible to drive an electric car. The advantage of using this induction motor is that it has durability, reliability, if exposed to interference, it remains strong, easy to maintain, and the ability to operate in extreme environments. These advantages can replace the use of DC motors. Where the induction motor receives power from a rechargeable battery, so that the analysis of data from an induction motor for an electric car with the calculation of the electric motor rotation is 1,500 rpm, the motor power itself is 375 kW, the maximum and minimum torque generated is 582 Nm and 271 , 2 Nm, with a battery life of 189.3 hours. The resulting acceleration to reach speeds of 0-100 km / h only takes 5 seconds.
Analisis Pengaruh Turbine Washing Terhadap Efisiensi dan Daya Pembangkit Turbin Uap Sagita Firza Nur; I Gede Eka Lesmana
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2094

Abstract

The steam turbine is one of the main components in the Geothermal Power Plant which acts as the prime mover is used to convert heat energy in steam into rotation energy. At PLTP X, steam is used to drive the turbine is in saturation conditions. The principle of the steam turbine is dry steam plant cycle. From July to August, it was known that there have been several decreases in generating power at Unit 2 at PLTP X. The efforts that can be done to overcome this problem is by turbine washing. This study aims to compare the performance of steam turbines based on thermal efficiency, isentropic efficiency and steam turbine generator power before and after turbine washing from the calculation results based on CEI/IEC 953-1, CEI/IEC 60953-3 and ASME PTC 6-2004 standards using the actual steam system operating parameter data collection, interviews and analysis. So that it gets an average increase in isentropic efficiency of 0,0564 %, thermal efficiency of 0,0082 %, the actual power generation of steam turbine is 162,72 kW and the largest power generation reaches 54.500 kW after the turbine washing steam rate of 7,5963 kg/kWh and the turbine heat rate of 3.607,3453 kJ/kWh.
Analisis Keretakan pada Sambungan Las antara Pipa ASTM A106 dengan Globe Valve Amri Abdulah; Apang Djafar Shieddique; Jatira Jatira; Dede Ardi Rajab; Sukarman Sukarman
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2150

Abstract

Crack failure often occurs in piping installations, especially in the welding area which can be caused by excessive stress or corrosion of the material. In this case, the crack failure in the HAZ area will be discussed near the pipe connected to the valve for the heat transfer fluid line. The method used in this paper is the inspection of the attached materials using OES (Optical emission spectroscope), observation of pipe and valve joints and failure analysis. From the results of material inspection, it was found that the pipe used was ASTM A106, then from the microstructure it was seen that the grain dimensions were not homogeneous, it would cause the strength of material heterogeneity, then from visual observation, it could be seen that pipe joints and valve misalignment occurred.
Analisis Ketahanan Material Epoxy Powder EF150AB pada Uji Thermal Shock untuk Komponen Charger Mobil Listrik Apang Djafar Shieddique; Amri Abdulah; Choerul Anwar; Yoon Jung Rag; Sohn Chang Kil; Dodi Muhammad
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2153

Abstract

Inside the electric car charger there is a controller where one of the components is the Disc Ceramic Capacitor (DCC) type SCF2E472M10 coated with epoxy powder EF150AB. The faster the charging, the higher the temperature, for that we need good performance on the capacitor layer. The method used in this study is to test the Pressure Cycle Temperature (PCT) with a temperature of 121 ° C, a pressure of 2 bar and a holding time of 48 hours and a Thermal Shock Test with a temperature parameter of -40 ° C to 125 ° C for each temperature change. 30 minutes for 100 hours, the number of test samples for each test is 20. From the test results, it was found that the average capacitance value on the PCT test was 4439.9 pF with a standard limit value of 3760 to 5640 pF, then the average value of Insulation resistance (IR) after the PCT test was 14183 Ω with the standard limit of the IR value of 10000 Ω. From these results it can be concluded that epoxy powder EF150AB is good for DCC coatings because the coating is resistant to low and high temperatures, which ranges from -40 ° C to 125 ° C.
Modifikasi Mesin Las Gesek Cakram Fendi Eka Setiawan; Nafsan Upara
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2161

Abstract

The purpose of this research is to improve the performance of the disc friction welding machine that has been built and is operated, but there is a drawback, namely that there is no measuring device for process parameters such as rotational speed and forging load. In addition, during operation there is a vibration of 1.5 mm / s to 4.9 mm / s which is unacceptable according to ISO-2372 standards, so that these deficiencies can affect the quality of weld production. Repair or modification of this the friction welding machine is carried out by selecting and installing a rotating speed sensor (RPM) and load cell forging loads and installing rubber to dampen vibrations. Furthermore, the function test was carried out with the load, it was obtained that the rotational speed read on the LCD was 3.7% greater than the tachometer and the vibration decreased up to a value of 0.9 mm/s where this value was acceptable according to ISO-2372, while the performance test resulted in welding production for 3 workpieces with plate sheet material AA-110, ASTM A36 and CU-DHP copper with the same thickness, namely 1mm. From the results of the specimen tensile test of the three materials, it was found that the breakdown location was in the welding area where the tensile test value was around 1.2 to 5.1% of the tensile value of the workpiece material.
Analisis Efektivitas Alat Penukar Kalor Pelat Datar UFX-42H Terhadap Kebocoran Pelat Dalam Proses Elusi Emas Annisa Sekarayu Permanajati; La Ode M. Firman
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2163

Abstract

Heat exchanger is an equipment designed to exchange heat between two fluids by applying heat transfer by convection and conduction without mixing the two fluids. heat exchangers are used in the gold mining industry in the gold elution process stage with the type of alat penukar kalor pelat datar(PHE) UFX-42H to reheat the eluate (water) using glycol as the heating fluid. The PHE has a leak on the back base plate. This report aims to analyze the comparison of the effectiveness and LMTD of PHE between specification data and operational data at the time of leakage. The calculation off effectiveness requires the suhue, mass flow rate, and specific heat of the fluid. The results obtained were the effectiveness of the specification data is 0.83 and the mean of operational data is 0.71. The results of LMTD specification data is 23.91 and the mean of operational data is 28.1.
Perancangan Pembangkit Listrik Tenaga Angin dengan Turbin Angin Savonius Tipe-U untuk Kapasitas 100 W Eka Maulana; Eddy Djatmiko; Dhidik Mahandika; Roni Cahya Putra
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2164

Abstract

The current need for energy is many tools that use electrical energy as a source of energy from these tools, followed by the need for electrical energy in Indonesia, increasing every year. Currently, Indonesia is targeting to increase the role of new and renewable energy to maintain energy security and independence with a target of at least 23% in 2025 and 31% in 2050. The utilisation of wind energy converted into electrical energy by converting energy mechanical energy from the wind into kinetic energy in turbine blades to turn a generator that can produce electricity. This paper discusses the design of a wind power plant with a u-type Savonius turbine for a capacity of 100 W using the Pahl & Beitz method. The Savonius wind turbine designed has 3668 mm × 920 mm with galvanised steel plate material and shaft dimensions of 4310 mm × 20 mm using carbon steel material S-45 C. The average wind speed is around 4 m/s with a humidity of 30°C; if the turbine is arranged on the rotor with a suitable mechanism, it can produce a turbine rotational speed of 199.9889 rpm, a Savonius type U wind power plant designed for a capacity of 100 Watt.
Aplikasi Sistem Informasi Pengelolaan Paket Wisata (Studi Kasus SATU BIRU Travel) Erwin Suhandono; Ponco Sugiarto
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2169

Abstract

This research is motivated by the lack of utilization of disseminating information on tour packages on SATU BIRU Travel which has not been computerized. These constraints can make it difficult for consumers to find information on tour packages that have been made. In this study, the data collection techniques used were observation, interviews and literature study. The method used to build this information system is the waterfall and object-oriented design using UML (Unified Modeling Language) and Black Box testing. The process in this study includes the process of managing tour packages, customer registration, customer status, financial income reports, implementation reports. The result of the research that will be implemented in the tour package management information system (the case study SATU BIRU Travel) is a system that can provide tour package information, customer registration, customer status, financial income reports, implementation reports, so that customers are expected to make it easier to order tour packages.
Pengaruh Laju Aliran Fluida Helical Coil Terhadap Efektivitas Kondensor Minyak Atsiri Cengkeh Berbasis Shell Cendy S. E. Tupamahu; Sefnath J. E. Sarwuna
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2298

Abstract

One of the main tools in the process of making essential oils is a condenser. The simple use of condensers is still used for essential oil processing by small business groups of Clove essential oil in Suli Village, Central Maluku. This is what encourages this research to be carried out. This research includes designing and testing the condenser model using COMSOL Multiphysics 4.5 Software to determine the optimal efficiency of the condenser by varying the mass flow rate of cold fluid on the shell side. The condenser used in this study is a helical coil condenser where hot fluid flows on the tube side and cold fluid flows on the shell side. Tube and shell materials are made of stainless steel 304, with a tube diameter of 1.905 cm, shell diameter 30 cm, shell height 57 cm, coil diameter 24 cm, coil height 50 cm. mass flow rate variations of 0.25, 0.51, 0.76, 1.01, and 1.26 kg / s. The results showed that the effectiveness of the condenser was effective at the mass flow rate m ̇ = 1.26 kg/s where the effectiveness (ɛ) was 91%.
Potensi Energi Angin pada Sisi Siku Atap Gedung Tinggi Wildane Aryabathi; Erwin Erwin; Slamet Wiyono
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2304

Abstract

Wind is moving air caused by the earth's rotation and also because of the difference in air pressure around it. The wind flows that occur include laminar flow and turbulent flow. Judging from the effect of spreading its direction, the wind that passes through a building, its flow will split into horizontal and vertical axes and pass along the geometry and structure of the building. This happens because the wind speed increases due to the increased wind pressure along the side of the building. Departing from this hypothesis, this research was conducted to compare the velocity potential on the angle side of the building roof with the speed at the top of the building (Rooftop) as a starting point for the development of new renewable energy engineering, especially wind energy. This experiment was conducted at the Dean Building of the Faculty of Engineering, Sultan Ageng Tirtayasa University, Cilegon, Banten. After conducting experiments with reference to the International Electrotechnical Commission (IEC) 61400-12-1 standard, this research found that on the angle side of the building the average and maximum velocity are higher than those on the roof of the building, also the wind energy potential is higher, amounting to ≥20.94%. In terms of Daily Wind Energy Potential, the elbow side of the building is proven to be more efficient with an increase in efficiency of 42.2%.

Page 6 of 19 | Total Record : 186

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