Jurnal Teknologi dan Ilmiah Teknik Mesin (JTITM)

Perencanaan Mesin Pencacah Plastik Kapasitas 20 Kg/Jam

Mohammad Zefri — Thu, 07 Sep 2023 00:00:00 +0700

This research aims to design a plastic shredding machine with a production capacity of 20kg per hour. The plastic shredder is designed to reduce plastic waste and facilitate the recycling of plastic materials into smaller and more manageable sizes. This research adopts a design and optimization method for the machine system. The machine design includes the selection and arrangement of blades, the driving motor, as well as the cutting and shredding system for plastic materials. Furthermore, testing and performance evaluation of the plastic shredding machine were conducted to ensure its reliability and operational efficiency. The results of this research demonstrate that the designed plastic shredder successfully achieved the target production capacity of 20kg per hour. The use of specialized blades and an appropriate driving motor provided optimal plastic cutting and shredding results. The machine is capable of transforming plastic waste into small fragments, facilitating further processing. Performance testing of the machine showed its stability and high energy efficiency. This research makes a significant contribution to the development of high-capacity plastic shredding machines, thereby enhancing the efficiency of plastic waste recycling processes. It is expected that the findings of this research will provide a foundation for the future development of more efficient and environmentally friendly plastic shredding machines.

Rancang Sensor Suhu Menggunakan Sistem Kontroler Pid pada Radiator Mesin Genset Caterpillar 3516 Guna Mencegah Terjadinya Overheat

Mohammad Wahyudin, Dedy Rachman Ardian — Thu, 07 Sep 2023 00:00:00 +0700

Genset is a device that functions to generate electric power as a substitute with the working principle of converting mechanical power into electrical energy. Which consists of a set of combined equipment from two different devices, namely the engine and generator. In a diesel generator that must be considered, namely supervision and maintenance of the engine, because what is currently being done is not optimal and results in the impact of the work system on the generator engine being disrupted. There was a problem with one of the generator units experiencing overheating at 87°C. By doing additional control of the temperature of the radiator temperature in order to find out the limits on the engine work system. So this research was carried out to design a simple control that can work automatically to stop the engine in an emergency when the maximum temperature in the radiator has reached the limit or excessive load usage. The design of this generator temperature measuring device uses thermocontrol as a system controller and uses a type k thermocouple as a temperature sensor, relay, timer, buzzer and alarm shirine as supporting tools. the contact or timer terminal is connected automatically to the emergency stop button which will then cut off the current and the working process of the generator engine stops. Based on the results of the analysis of the tests carried out in this study, the tool works at temperatures above 75°. then the thermocontrol works to send a signal to the relay, and sends a signal to the timer and the buzzer lights up, then the output of the timer automatically disconnects the current with a delay on the timer for 5 seconds. The generator turns off automatically and is marked with a shirine alarm warning that lights up and works to find out if the generator is overheated

Analisis Laju Korosi Carbon Steel ASTM A283 Grade A , Stainless Steel AISI 304L Dan AISI 316L Dalam Cairan Asam Sulfat

Priambodo Galih Puspito, Meryanalinda, Agus Setiyo Umartono — Thu, 07 Sep 2023 00:00:00 +0700

The chemical industry's consistent growth necessitates increased quantities of raw and secondary materials, with sulfuric acid being a vital component in various applications such as phosphoric acid production, fertilizers, detergents, pharmaceuticals, laboratory reagents, and water treatment. As sulfuric acid is highly corrosive, selecting appropriate corrosion-resistant materials is crucial. This study aimed to assess corrosion rates in sulfuric acid solutions for ASTM A283 Grade A carbon steel, AISI 304L, and AISI 316L stainless steel. ASTM A283 Grade A, AISI 304L, and AISI 316L specimens were immersed in 98% and 37% sulfuric acid solutions for 27 days, and corrosion rates were determined using the weight loss method. Results revealed the highest corrosion rates in 98% and 37% sulfuric acid for ASTM A283 Grade A steel, measuring 29.68 mpy and 1191.06 mpy, respectively. In contrast, AISI 316L exhibited the lowest corrosion rates, at 1.91 mpy and 814.61 mpy. Uniform corrosion, characterized by surface color changes and area reduction, occurred in all specimens. The concentration of sulfuric acid significantly influenced steel corrosion rates, with solubility of the FeSO4 film layer being a key factor. Lower solubility values conferred higher corrosion resistance, while higher values indicated lower resistance.

Analisis Ketahanan Coating Zinc Rich Primer Ketebalan 10, 20, 30 dan 40µm pada Baja SUP 9 Terhadap Larutan Garam Shodium Chloride pada Temperatur 35°C

Yokanta esza Millenio Pratama — Thu, 07 Sep 2023 00:00:00 +0700

Steel material is susceptible to corrosion, due to the metallic nature of the material. Corrosion occurs due to the release of ions in the material to the environment. The protection that is often used in steel materials is coating. Coating is a form of coating a material with another material that can withstand the corrosion rate. This research was conducted to determine resilience coating cat zinc rich primer base in salt solution sodium chloride with a concentration of 5%, with a thickness of 10, 20, 30, 40µm, and a steel ratio of SUP 9 without coating paint, with a temperature of 35°C. Where will the specimen be tested within 240 hours, while data is collected every 24 hours. From the results of this study it was found that in SUP 9 steel salt solution corrosion occurred within 48 hours. Meanwhile, SUP 9 steel which is in coating paint thickness 28-33µm, paint damage occurs within 168 hours. While the standard is 144 hours, the paint thickness for SUP 9 spring steel uses paint Zinc Rich Primer Base is 30µm.

Perancangan Mesin Pencacah Rumput Ternak Kapasitas 700 Kg/Jam

Mohammad Sayyidul Kautsar — Thu, 07 Sep 2023 00:00:00 +0700

This study aims to design a livestock grass chopper with a capacity of 700 kg/hour. The machine used is a Honda GX160T2-SD with a power specification of 3.38 kW (5.2 Hp) and n1 rotation of 3600 rpm. Through calculations and analysis, it is obtained that the n2 synchronous rotation is 2755.1 rpm which is in accordance with the needs of the chopper. The single transmission system used consists of 2 pulleys with a shaft pulley with a diameter of 108.5 mm and a motor pulley with a diameter of 86 mm. The two pulleys are connected using a v-belt type B-46 with a length of 707.36 mm. The resulting V-belt belt speed is 14.13 m/s, with a distance between the pulley axes of 330.116 mm, and the pulley contact tilt angle of 176°. The design of this chopper is expected to contribute to increasing efficiency and productivity in the processing of livestock grass.