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Mutiara Bahtiar, Ahmad Dony
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Automotive Engineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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Journal : Jurnal Teknik Mesin

 1 
ANALYSIS OF CHEMICAL PROPERTIES AND THERMAL DECOMPOSITION OF THE VYAZOVKIN MODEL OF CORN SILK BY PYROLYSIS PROCESS AT A HEATING RATE OF 40 O C/MINUTE: ANALISIS SIFAT KIMIA DAN DEKOMPOSISI TERMAL MODEL VYAZOVKIN SUTRA JAGUNG DENGAN PROSES PIROLISIS PADA LAJU PEMANASAN 40 O C/MENIT Citrakara Upendra Sneha Bandhana Kusuma Himawan; Rahmad, Hadi; Mutiara Bahtiar, Ahmad Dony
Jurnal Teknik Mesin Vol. 1 No. 2 (2022): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v1i2.400

Abstract

Increasing levels of carbon dioxide (CO) in the atmosphere in highly populated countries is driving renewed interest in developing research and techniques to reduce global warming. The abundance of corn silk is a very important factor and needs to be considered when it comes to its utilization. Several studies have been conducted regarding the use of corn silk, namely as an ingredient for making low-fat, anti-obesity, anti-diabetic meatballs which are obtained from corn silk polysaccharides. However, the potential of corn silk as a raw material for fuel has not been studied. Therefore, it is important to conduct research to understand the potential of corn silk as a new and renewable energy source which is expected to become a long-term energy reserve. Thermogravimetric analysis of the characteristics and kinetics in the normal room temperature range of 900 oC under a nitrogen atmosphere at a heating rate of 40 oC/minute. The results show that the pyrolysis process of corn silk is divided into 3 stages related to the process of reducing the water content at a temperature of 65-130 °C, followed by the devolatilization stage at a temperature range of 216-506 oC and the last is a relatively slow decomposition up to 900 oC. The activation energy (Ea) in the active pyrolysis stage was calculated using the isoconventional fitting model using the Vyazovkin model. The resulting activation energy from the calculation of the Vyazovkin model is in the range of 215,522 kJ/mol each.
DESIGN AND CONSTRUCTION OF PNEUMATIC PARTS SEMI-AUTOMATIC TIED WEAVING YARN DYES MACHINE: RANCANG BANGUN BAGIAN PNEUMATIK MESIN PEWARNA BENANG TENUN IKAT SEMI OTOMATIS Mutiara Bahtiar, Ahmad Dony; Hendarti, Devina Rosa; Cahyono, Hiding; Setiawan, Deny
Jurnal Teknik Mesin Vol. 1 No. 2 (2022): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v1i2.932

Abstract

To Increase production woven fabric and efficiency production woven fabric, which can alternatives realizing an increase it by create a Design Machine Coloring Yarn Weaving. Design method Machine Coloring Yarn Weaving Using a pneumatic system and electric motor as a driven source, includes design planning, design elements of machine (machine frame, color liquid container, twist yarn weaving, pulley, v-belt and pneumatic systems). Coloring Machine Yarn Weaving semi automatic pneumatic section use pneumatic piston diameter of 32 mm and air requirements needed 0.000746m3/s.
DESIGN OF VACUUM MACHINE FOR SEPARATING METAL SCRAP WASTE WITH OIL CUTTING USING AUTODESK INVENTOR: PERANCANGAN DESAIN MESIN VAKUM PEMISAH LIMBAH GERAM DENGAN OIL CUTTING MENGGUNAKAN AUTODESK INVENTOR Susanto, Riswan Eko Wahyu Susanto; Yulia Puspa Dewi; Setiawan, Deny; Cahyono, Hiding; Mutiara Bahtiar, Ahmad Dony
Jurnal Teknik Mesin Vol. 2 No. 1 (2023): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v2i1.4090

Abstract

Metal scrap waste mixed with oil cutting can reduce the quality of the oil cutting itself, so it cannot be used directly. Meanwhile, the waste that is mixed with oil cannot be processed directly such as recycling / remelting. Cutting oil as a cooling material for the cutting process, so from here the recycle of cutting oil is needed, so a tool/machine is needed to separate the waste from the oil cutting. The research method used is design research which consists of planning machine elements and making machine designs. In the planning of machine elements, more emphasis is placed on the impler blade of the vacuum separator while the drawing uses Autodesk Inventor. From the results of the design and design of the "vacuum separator" it is obtained that; the dimensions of the impeller are 20 mm in diameter, the impeller neck is 28 mm in diameter, the impeller eye and the inlet side are the same diameter 92 mm, the inlet side of the impeller has an angle of 16 °, the width of the bow is 18.85 mm, while the distance between the blades (????1) is 48.17 mm, the diameter of the outgoing side of the results of the calculation is 230 mm, the angle of the outgoing side of the impeller is 25 ° and the wide side of the impeller is 7.5 mm, at the distance between the blades of the incoming side (????2) 120.42 mm. So that from the design of the machine element, the number of impellers is obtained 6 blades, with the results analyzed with a safety factor of 15 Ul.
MONITORING AND MANAGEMENT OF ELECTRIC MOTORCYCLE BATTERY SYSTEMS: MONITORING DAN MANAJEMEN SISTEM BATERAI MOTOR LISTRIK Rahmad, Hadi; khalida, zulfa; arif, saiful; Candra dewi, Kartika; Mutiara Bahtiar, Ahmad Dony
Jurnal Teknik Mesin Vol. 3 No. 1 (2024): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/j-meeg.v3i1.4996

Abstract

Some problems that often occur with electric motorbike batteries include overcharge, overdischarge and overheat. To avoid these problems, it is necessary to regulate or monitor the battery, which is called a Battery Management System (BMS). The BMS in this research is focused on the use of PSDKU Kediri electric motors. With this BMS design, it is hoped that it can be used as a reference in battery system management so that the battery lasts longer. In this study, 112 batteries were used, consisting of 14 series and 8 parallel. The voltage sensor circuit is made to determine the battery cell voltage so that overvoltage and undervoltage protection can be carried out. Measurements can be made using a multimeter by adjusting the reading position on the voltage. The maximum voltage produced is around 57.7 volts with a charging time of 7 hours
Co-Authors Cahyono, Hiding Candra Dewi, Kartika Citrakara Upendra Sneha Bandhana Kusuma Himawan Deny Setiawan Devina Rosa Hendarti Rahmad, Hadi Saiful Arif Susanto, Riswan Eko Wahyu Susanto Yulia Puspa Dewi Zulfa Khalida, Zulfa