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Scientific Journal of Mechanical Engineering Kinematika
Published by Universitas Lambung Mangkurat
ISSN : 26559048     EISSN : 2655903X     DOI : http://dx.doi.org/10.20527
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is a mechanical engineering journal that focuses on Energy, Applied Mechanics, Materials, Manufacturing Processes. SJME Kinematics journal publish in Indonesian and receive in English. Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is an Open Access Journal that is available for free on online media. We are not only accept journals that focus on the derivatives of the four fields below, but also the possibility of an integrated focus of fields from several fields.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 166 Documents
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SIMULASI DAN PERANCANGAN BILAH TURBIN ANGIN SAVONIUS HELIKS DENGAN MEMANFAATKAN FENOMENA ANGIN PADA GEDUNG TINGGI Irfan Muhammad
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.211

Abstract

The shape of the earth's uneven topography causes many phenomena to occur that can deflect and change the character of wind speed. This phenomenon can occur due to natural factors and human intervention factors. The presence of a high-rise building complex is one of the causes of the downwash and venturi effect phenomena. Both phenomena are famous for producing wind gusts that are significant enough to disturb pedestrian comfort. Therefore, in this study the author will calculate the change in wind speed character with the influence of these two phenomena as the potential driving energy for three variants of helical type vertical axis wind turbines with Computational Fluid Dynamic (CFD) simulation media. The simulation process is divided into two stages, the first is the author runs a simulation of the effect of wind phenomena on the natural wind speed character, which shows an increase in wind speed of 40%. And the last is a simulation of the power output of each wind turbine variant using wind speed data in the previous stage. The results show that a helical type vertical axis wind turbine with a normal blade can produce an optimal power of 447,8 watt.
PENGARUH PENGGUNAAN WIND GATE TERHADAP UNJUK KERJA TURBIN ANGIN DARRIEUS TIPE H Lia Agustina; I Made Susanto; I Wayan Wawan Mariki
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.216

Abstract

Has performed characterization of the darrieus wind turbine type H through wind speed measurement and rotor rotation speed which can be used to knowing the optimal performance wind turbine. Measurement of wind speed is done with using an anemometer. Measurement of rotor rotation speed using a tachometer. Wind turbines characterized in this study are darrieus wind turbines type H varied into wind turbines using wind gates and wind turbines without wind gates. The results obtained from this study are differences power values and differences in the efficiency values of the wind turbine using the wind gate and without the wind gate. The maximum power value of wind turbines is owned by the darrieus wind turbine type H without using a wind gate which reaches 77.55 watts of power. The highest efficiency value is owned by darrieus wind turbines type H using the wind gate which reaches 36.25%.
ANALISIS POTENSI ENERGI ANGIN MEMANFAATKAN KENDARAAN YANG BERGERAK DI JALAN PB SUDIRMAN PATRANG, JEMBER Ramadhan Al Firdaus; Nasrul Ilminafik; Aris Muttaqin
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.218

Abstract

The potential of wind energy on the highway by utilizing moving vehicles can produce wind speeds of up to 6 m/s depending on the speed, intensity, and size of the vehicle. The study was conducted to determine the potential for wind energy generated on Jalan PB Sudirman based on wind speed m/s on November 24-30 and December 11-17. The average wind speed on November 24 - 30, the highest is 3.1 m/s and the lowest is 1.9 m/s with characteristic wind gusts at 06-17 hours. The average wind speed on December 11-17 is the highest at 3, 8 and the lowest is 2 m/s with low wind characteristics, and gusts from 06 to 17. Based on the characteristics of the gusts of wind, two types of turbines that can rotate at low speeds were selected: HAWT TSD-500 cut-in 3 m/s and VAWT EN-5KW-H cut-in 2.5 m/s, The average power potential from November to December of the TSD-500 is 232.9 Watts and 443.7 Watts. The EN-5KW-H average power potential is 456.9 watts and 844.6 watts. EN-5KW-H can take advantage of wind speed with wind characteristics better than TSD-500.
PERANCANGAN DAN ANALISIS TEGANGAN PRESSURE VESSEL HORIZONTAL SEPARATOR DENGAN METODE ELEMEN HINGGA Aswin Aswin; Fajar Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.219

Abstract

Pressure vessel separator is a pressure vessel that functions to separate fluids in the form of water, oil, and gas which have different densities. The design of the pressure vessel in this study aims to calculate the strength and stress in the material. The design data uses secondary data in the form of datasheets and process and instrumentation diagrams that show the specifications and orientation of the pressure vessel separator. The operating pressure is 5 psi, the design pressure is 200 psi, the operating temperature is 90 F and the design temperature is 212 F. The material of the saddle, shell, and head used is SA 516 Gr.70, nozzle neck using A106 Gr. B, and nozzle flange material using SA 105. The design and analysis was carried out using manual calculations referring to the ASME section VIII standard which is the standard for pressure vessel calculations and stress analysis using Solidworks software which is software for three-dimensional image modeling and finite element analysis. The results of the design and analysis using manual calculations using the ASME section VIII standard, then the maximum allowable working pressure is 290.934 psi. Circumferential stress analysis using Solidworks software obtained 21680.2 psi and longitudinal stress obtained 25430.7 psi, so the analysis results are declared safe because they do not exceed the design pressure and allowable stress values of 38000 psi.
ANALISIS DESAIN POROS DAN DOCTA EKSENTRIK UNTUK GEARBOX ROTOGRAVURE MENGGUNAKAN METODE ELEMEN HINGGA Bagus Adi Prasetyo; Heri Yudiono
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.220

Abstract

The design of the eccentric shaft and docta of the rotogravure gearbox must have the correct design structure construction and material type so as to increase the effectiveness and efficiency of the gearbox performance. The purposes of this study is to determine the safest and optimum eccentric shaft and docta design based on the results of analysis on the CATIA V5 software simulation. This study uses the finite element method by analyzing the structure of the shaft and docta eccentric components in the form of von Mises stress values, displacements, and safety factor calculations which are displayed in color contours. The eccentic shaft design with the lowest von Mises stress value has a value of 178,92 MPa, the lowest displacement value is 0,22042 mm, and the highest safety factor calculation results is 2,505. Meanwhile, the consequences of the eccentric docta design analysis with the lowest von Mises stress value have a value of 24,92 MPa, and the lowest displacement value is 0,021661 mm, and the highest safety factor calculation result is 18,45. It was concluded that the eccentric shaft design 4 and eccentric docta 4 using ST 60 material resulted in the lowest von Mises, the lowest displacement, and the most highest safety factor value calculation compared to other eccentric shaft and docta designs so that this new design is the safest and optimum design for the loading model that occurs.
ANALISIS PENGARUH TEMPERATUR MEDIA PENDINGIN PROSES PENGELASAN SMAW TERHADAP NILAI KEKERASAN DAN PADA BAJA KARBON SEDANG Jefri Aldo; Rijal Surya Rahmany
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.226

Abstract

This research aims to analyze the effect of the comparison of the temperature of the cooling medium used in the cooling process of medium carbon steel welded using a SMAW welding machine to the hardness values. The cooling medium used is SAE 5W 30 oil with different temperatures of 80°C, 90°C, and 100°C. The research was carried out by using the method of welding on medium carbon steel and cooling it with oil media at different temperatures, then testing the Vickers hardness with a load of 40 kgf. Researchers used oil cooling media without heating, and room temperature as a differentiator, as a result, through this research, generally different results were obtained, namely the hardness number of non-media materials 103, 584972 VHN, oil without heating 108, 127134 VHN, oil 80°C 108 , 36668 VHN, 90°C 110 oil, 5910479 VHN, 100°C 101 oil, 4692936 VHN.
UNJUK KERJA MOTOR BENSIN GENERATOR-SET BERBAHAN BAKAR CAMPURAN BIOETANOL NIRA TEBU Abdi Hanra Sebayang; Aditya Pangestu; Rico Aditia Prahmana
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.233

Abstract

An increase in fuel oil consumption occurs every year, and an increase in population causes this. To overcome these problems, developed alternative fuels such as bioethanol. This research was conducted using an experimental method to analyze the performance of a single-cylinder SI motor fueled with a mixture of bioethanol. Bioethanol is produced from raw sugarcane juice through fermentation with the help of the bacterium Saccharomyces cerevisiae. The composition of the fuel mixture used is 5% bioethanol+95% Premium (Ron 88), 5% bioethanol+95% Pertalite (Ron 90) and 5% bioethanol+95% Pertamax (Ron 92), which is then analyzed for the performance of the motor gasoline generator sets. The results showed that a Premium of 240.9 W obtains the highest power of the bioethanol mixture. The specific fuel consumption was reduced, obtained for Premium of 1.417 kg/Wh, and the highest power of bioethanol mixture was obtained for Pertalite. The result shows that the highest power is 218.67 W and, the torque is 0.803 Nm. Thermal efficiency is obtained at 38.711% for Pertalite. The Pertamax bioethanol mixture has power, and torques are 220 W and 0.875 Nm, respectively. Moreover, the fuel consumption value obtained is 1.573 kg/Wh, and the mixture's thermal efficiency is 42,524%. The outcome of this study would provide insight into the potential use of bioethanol mixture for generator engine applications and offer a pathway for future studies in different ratios of bioethanol to realize the significant benefits of generator engines for internal combustion engines.
ANALISIS PENGARUH ADSORBENT PADAT TERHADAP KUALITAS KANDUNGAN BIOGAS Harmiansyah; Lathifa Putri Afisna; Sugatra Dwi Atmaja; Fitrah Qalbina; Rustam Efendi
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.238

Abstract

The population is getting bigger every year as population growth increases, with population growth the use of fossil energy becomes high so that energy availability is increasingly limited. Renewable energy is one way to overcome the diminishing availability of energy, one of which is biogas. Biogas is a renewable gas fuel produced from the fermentation process of organic matter by anaerobic bacteria in a vacuum, biogas is also included in the energy category which is environmentally friendly and easy to use. Optimization of biogas performance can be carried out by purifying the biogas content using the adsorption method. In this study using natural zeolite adsorbentts and activated carbon with 3 mass variations, namely 250, 500 and 750 grams. Based on the results of the tests that have been carried out, the adsorbentt has an effect on the biogas content, the more adsorbentt used, the greater the CH4 gas (at 250 grams it is 46.29%, 500 grams is 48.33%, and 750 grams is 51.84%) followed by a decrease in CO2 (at 250 grams of 47.38%, 500 grams of 47.47%, and 750 grams of 43.02%) and the better the quality of biogas. The minimum pressure required to pass through the 750 gram adsorbentt is 7 mbar (700 Pa) or the minimum pressure provided by the floating drum.
ANALISIS UNJUK KERJA AGITATOR BLADE HELICAL RIBBON UNTUK PENGADUKAN BAHAN BAKU BIOGAS Ilham Dwi Arirohman; Shintha Sarmila A.S Yahya; Lathifa Putri Afisna
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.239

Abstract

Biogas is an affordable source of alternative energy. Regarding to increase the yield of biogas production, several studies have implemented a stirring process, one of which is a mechanical stirring process. This study aim to design, manufacture and determine the effect of the agitator blade helical ribbon on the homogenity of biogas slurry. The design parameters considered include force, torque, and power to drive the agitator. Parameters for agitator performance tests were stability of rotation speed and total dissolved solids (TDS) from a mixture manure and water. The designed agitator has a stirring force of 372.849 N, a stirring torque of 8.203 N.m, and the power required to drive the agitator is 143.491 watts or 0.192 HP. The average TDS ratio at 10 rpm rotational speed is 1.35 with a standard deviation of 0.20; at a rotational speed of 30 rpm, the average TDS ratio was 1.37 with a standard deviation of 0.07; and at a rotational speed of 50 rpm the average TDS ratio is 1.8 with a standard deviation of 0.04. The higher the agitator rotation speed, the higher the TDS slurry ratio. The higher the value of the TDS ratio, the more effective the stirring process. The smaller the standard deviation of the TDS ratio value, the more homogeneous the slurry in the biodigester.
KOMPARASI KONSENTRASI HIDROGEN SENSOR MQ-2 TERHADAP LUAS DAN WARNA NYALA API HASIL ELEKTROLISIS AIR Bernardus Crisanto Putra Mbulu; Danang Murdiyanto; Mietra Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 1 (2023): SJME Kinematika Juni 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i1.234

Abstract

Hydrogen is a fuel that is being developed today as a substitute for fossil fuels that are depleting. One way to produce hydrogen fuel is through the electrolysis method using a water-based HHO generator. This study aims to determine how much hydrogen is produced from each electrolyte solution, which is then compared to the area and color of the resulting flame. The comparison of each electrolyte solution comes from the ratio of moles of solute and solvent (H2O), which is 1:12, with the solutes used being NaCl, CH3COOH, and NaHCO3. The concentration of hydrogen gas produced is detected using the MQ-2 sensor. At the same time, the area and color of the flames are obtained through the results of a 20-minute combustion video, which is made into 100 photo frames for each electrolyte solution. The results of this study showed that the average hydrogen production for NaCl solute was 891.0 ppm and the flame area was 12.64 mm2 without blue color, the solute CH3COOH was 917.33 ppm, the flame area was 16.46 mm2 with 40.52% blue color, and NaHCO3 solute was 980.67 ppm with a flame area of 17.47 mm2 with 76.19% blue color

Page 9 of 17 | Total Record : 166

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