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Jurnal Inovator
Published by Politeknik Jambi
ISSN : -     EISSN : 26155052     DOI : 10.37338/ji
Core Subject : Engineering,
Automotive Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Journal of Inovator is peer review journal, published twice a year by the LPPM Politeknik Jambi. This journal discusses the scientific works containing results of research in the field of mechanical engineering, includes Dynamics, Vibration and Sound Engineering, Material and Manufacture Technology, Thermal and Refrigeration Engineering, Energy Conversion, Robotic and Industrial Automation, Vehicle Engineering, Solid Mechanic and Design.
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Articles 5 Documents
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Search results for , issue "Vol. 4 No. 2 (2021): Jurnal INOVATOR" : 5 Documents clear
Analisa Konsentrasi Reaktan Terhadap Produk Gas Hidrogen Pada Reaksi Hidrolisis Kompor Berbahan Bakar Limbah Kaleng Bekas Sukadi; Novarini
Jurnal INOVATOR Vol. 4 No. 2 (2021): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v4i2.141

Abstract

Inorganic waste is rubbish that cannot be broken down by nature such as metals, plastics and glass. Garbage for the city of Jambi is a problem that has not been resolved to date. One example of the type of metal waste that can be managed is Aluminum such as used beverage cans. One way that technology can be developed to treat aluminum waste packaging for used beverage cans (soft drinks) is by way of recycling. The method that can be used is the hydrolysis process to produce hydrogen gas as stove fuel. The hydrolysis process is carried out by mixing Sodium Hydroxide, Aluminum, and Water. An analysis of the composition of Aluminum, Water and Sodium Hydroxide (NaOH) is carried out to produce maximum hydrogen gas with a fixed reactor volume. the results of research conducted obtained the volume of H volume gas formed, the highest pressure and temperature (130 l, 200 psi and 100 ° C) with the use of maximum reactants, namely aluminum from 400 g canned waste and 4N NaOH. NaOH acts as a catalyst in the aluminum reaction and water forms NaAl (OH) ₄ which releases hydrogen gas in the exothermic reaction..
Analisa Pengaruh Perlakuan Panas Quench-Temper terhadap Nilai Kekerasan dan Kekuatan Tarik Baja JIS SUP 9 Zainuri Anwar; Risky Irawan
Jurnal INOVATOR Vol. 4 No. 2 (2021): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v4i2.142

Abstract

The raw material for making springs must have mechanical properties following the spring standards because the spring was receiving a dynamic load. This study aimed to improve the mechanical properties of the metal used as a material for making leaf springs. The material used is JIS SUP 9 steel which has a carbon content of 0.52-0.6%. The method used in this research is quenching and quench-tempering heat treatment. The used cooling medium was water, and the tempering temperature was at 300 °C. The mechanical properties of each specimen were tested by Vickers hardness and tensile test. The best heat treatment for material preparation is a quench-temper process, and the result was met with the manufacture of leaf spring. The findings explained that the hardness and tensile strength values were 504 HVN and 1555 N/mm2, respectively. This study could be a new insight for the leaf spring manufacture in the automotive industry.
Rancang Bangun Alat Peraga Sistem Pneumatik dan Pengujian Dua Silinder Kerja Ganda Bergerak Bersamaan Secara Terus-Menerus Ari Kurniawan; Hilda Porawati; Siti Aminah
Jurnal INOVATOR Vol. 4 No. 2 (2021): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v4i2.143

Abstract

Teaching aids are tools used to teach and help explain the material. The teaching aids that the author makes are pneumatic system props and testing of two double acting cylinders moving simultaneously continuously. This teaching aid is made through the design stage. This teaching aid was made to serve as a learning practicum tool in the Jambi Polytechnic workshop and to conduct testing. In the final project report, the author made a pneumatic system that has the actuator motion automatically. Thus the components used to make the actuator move automatically, namely 4 manifold ports, 1 3/2 pushbutton valve, 2 3/2 roller valves, 1 5/2 double pilot valve where the air flow will be branched using a T fitting to each each cylinder, namely cylinder 1 and cylinder 2. This teaching aid has a length of 80 cm, a width of 80 cm and a height of 150 cm. All pneumatic components are mounted on pneumatic sliding boards by connecting them with pneumatic rails.
Pengaruh Temperatur Pengeringan Pada Alat Pengering Sistem Rotary Terhadap Kualitas Cabai Merah Dikki Pratama; Vivi Apriyanti; Generousdi
Jurnal INOVATOR Vol. 4 No. 2 (2021): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v4i2.146

Abstract

Red chili is a food ingredient that is widely consumed and grown in Indonesia. Prices fluctuate greatly due to many factors. Post-harvest handling of chili can help farmers from losses and can maintain price stability in the market. The easiest post-harvest handling is drying. In this study, chili drying was carried out using a dryer with a rotary system. The dryer is designed in the form of a mechanical rotating drum driven by an electric motor. Hot air from LPG combustion is passed forcibly across the drum using a blower. Drying was carried out for 6 hours with a capacity of 3 kg of fresh red chilies at 60 oC, 70 oC and 80 oC. Drying at a temperature of 60 oC produces a high water content of 18.2 % with a weight loss of 80 %, the texture of the chili is still wet and soft with a bright red color. At a drying temperature of 70˚C the moisture content is quite low, namely 11.22 %, weight loss is about 87.2 %, the texture of dry chili is brightly red colored, while at a temperature of 80 ˚C the water content is low 9.1 %, the weight loss is high 90 %, dry chili texture with brown color.
Mesin Pengiris Tempe Semi Otomatis Jenis Disc Cutter Vertical Hilda Porawati; Ari Kurniawan
Jurnal INOVATOR Vol. 4 No. 2 (2021): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v4i2.147

Abstract

Rempeyek Ilham is one of the Micro, Small and Medium Enterprises (MSMEs) in Jambi City which is engaged in the production of tempeh peanut brittle. The increase in the capacity of the tempeh slices is done by making an automatic tempeh slicing machine using a vertical disc cutter. The slicing method is to use a crankshaft mechanism which produces a reciprocating motion with a 2-way movement direction, namely the transfersal direction and the longitudinal direction. The thickness of the wedge is regulated by a stopper with the help of a spring push mechanism. The results showed that the tempe cutting machine with a cutting time of 1 minute 37 seconds, the average number of slices obtained with a size of 2 mm was 83.8 slices and for sizes above 2 mm (2.1 mm-3 mm) as many as 68 slices, and the rest of the tempeh pieces are 5.6 cm long.

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