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All Journal Jurnal Teknologi Prosiding Semnastek JURNAL CITRA WIDYA EDUKASI Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Journal of Applied Sciences and Advanced Technology Jurnal Teknik Mesin Mechanical Xplore
Istianto Budhi Rahardja
Politeknik Kelapa Sawit Citra Widya Edukasi
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Journal of Applied Sciences and Advanced Technology

 1 
Mechanical Properties of Particle board from Empty Palm Fruit with Polyester Resin Adhesive Istianto Budhi Rahardja; Hayya Afifah; Yudi Dermawan; Ery Diniardi; Anwar Ilmar Ramadhan; Januar Parlaungan Siregar
Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.4.1.35-42

Abstract

The need for particleboard in Indonesia is increasing every year. Particleboard is usually made of wood that comes from the forest so it has a bad effect and forest products will decrease over time. To overcome this problem, new knowledge is created that can be done. The new knowledge is like utilizing empty palm oil bunches for particle board material to replace wood raw materials. Particleboard is usually made of wood or other lignocellulosic materials such as oil palm empty bunches. The empty fruit bunches that have been made will be mixed with polyester resin as an adhesive. This study examines the effect of the percentage of polyester resin adhesive used, namely 90%, 75% and 60%. The process of making particle board starts with the preparation of raw materials such as palm empty fruit bunches and polyester resin. For empty bunches fiber used is 1 cm long. After the particle board is made, a hardness test is carried out using a durometer with the ASTM D2240 standard.
Paving Block Investigation Using Waste Plastic, Used Oil, And Styrofoam with Different Variables St. Nugroho Kristono; Muhammad Malik Arifandi; Yudi Dermawan; Istianto Budhi Rahardja; Ahmad Mahfud
Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.4.1.1-6

Abstract

Paving block is a composition of building materials made from a mixture of portlandcement or similar hydraulic adhesives, which are components of building materials that are very commonly used. But besides that, the dependence on the use of cement as an adhesive for Paving Blocks is still high. Therefore, the solution taken is to use waste plastic, Styrofoam, and used oil as materials for making Paving Blocks. Based on the results of data processing, it can be concluded that the manufacture of paving blocks using a mixture of plastic, used oil, and styrofoam has several stages, namely the stages of preparing tools and materials, taking and collecting plastic waste, used oil , and styrofoam, heating stages, mixing stages, the printing stage, the release stage and the drying stage, and the laboratory testing stage. This study uses 6 comparisons of mixed materials. The results of the trial of making paving blocks using a good mixture of plastic waste and used oil, namely with a composition of 67%: 33% with an average compressive strength of 63.2 MPa and water absorption capacity of 2.4% entered into quality A used for roads while paving blocks with plastic waste materials, used oil, and styrofoam have the best compressive strength value, which is 26.0 MPa with a composition of 40%:50%:10% and the absorption power obtained is 5.2%. B quality is used for parking lots. 
Design of Refrigerant Leak Detector on Arduino Uno – Based Refrigeration System Sobri Sobri; M. Subroto Aliredjo; Yusuf Aditya Nugraha; Istianto Budhi Rahardja
Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.1.9-16

Abstract

Refrigeration loos has big impact on inefficient system operation, increase power consumption, higher maintenance cost and moreover contribute to global warming. The purpose of this study is designing refrigerant leak detection device, making a refrigerant leak detector, and testing the refrigerant leak detector in a refrigeration system. Research was conducted for six months, starting in November 2018 until Mei 2019 at the ice block factory owned by KUD. Usaha Mina, Semarang City. The stages of method used in this study include studying of literature, designing device, making device, and testing refrigerant leak detection device. As for the research result are as follows 1) The design of the refrigerant leak detector is made using CorelDraw Grapichs Suite X7 very easily according to the input and output to get desired function 2) In assembling components using jumper cable, it must be in accordance with the input that is in the program so that it does not cause a short circuit to component. Sensitivity level of this refrigerant leak detection device is very high, depending on how in programing the desire level of sensitivity and other factors such as NH3, NOx, Alcohol, Benzene, Smoke, CO2, and other gases. Because the gases will affect the level of sensitivity of device. 4) The testing of a refrigereant leak detector must be close to the source of leakage which serves to accelerate the device to detect leakage 5) The voltage needed by this tool is between 5 – 20V (DC).
Comparative Analysis of the Amount of Fuel Use for Main Motor 1 in Theory and Reality in the Field During Operation One Trip at KMN. Cahaya Lapawawoi 01 Ade Hermawan; Teguh Binardi; Agustiawan Agustiawan; Samsi Samsi; Priyantini Dewi; Sobri Sobri; Istianto Budhi Rahardja
Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.4.1.7-14

Abstract

Ships are units used for transportation, logistics industry, fishing units and so on. In its operations, ships use fuel oil to move and reach their intended destination. The fuel oil used includes heavy fuel oil (HFO), medium fuel oil (MFO), and intermediate fuel oil (IFO). The main factors that affect the high and low use of fuel are rotation (rpm) and also the operating time of the main engine. Flowmeter is a measuring tool to determine the amount of fuel oil consumption in the engine. The function of the flowmeter is to measure the volume of liquid that passes through the device so that the total volume of liquid that enters a container / place or machine is obtained. Flowmeter and Tachometer are very helpful in calculating fuel consumption on board. Basically, with the use of high rotation, it can accelerate the speed of the ship's movement to reach its destination.
Analysis Cause of Automatic Voltage Regulator Damage to the Genset in KP Hiu 06 Owned the Ministry of Marine and Fisheries Sobri Sobri; Ade Hermawan; Edwin Haryanto; Istianto Budhi Rahardja
Journal of Applied Sciences and Advanced Technology Vol 2, No 1 (2019): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (548.565 KB) | DOI: 10.24853/jasat.2.1.1-6

Abstract

AVR on an electric generator is a device that serves to maintain the stability of the generator output voltage. KP Shark 06 suffered AVR damage twice in 2017 which affected the operations of the ship so it is necessary to analyze the cause of the damage. The steps to analyze the causes of AVR damage starts from the factor of overload on the electricity generator, the working condition of the electric generator and the motor driving factor of the electric generator. Based on observations and calculations of the ship's electricity load, it is known that there is no overload of electric generators, ie the average per day / hour of power used is 6,009.75 Watt, where the available power is 17,600 Watt (generator efficiency 34.14%). While the work of the generator is observed normally based on the results of the measurement of the electric current produced by the generator. It was concluded that the cause of AVR damage was due to the generator driving motor which experienced a decrease in performance so that when subjected to electric load the engine rotation experienced instability which caused voltage fluctuations where this caused the AVR to work abnormally resulting in AVR damage. After repairs to the generator drive engine during ship docking, the engine rotation of the electric generator drive motor becomes more stable and the working function of the AVR becomes more normal.
Fiber Cyclone Palm Oil Mill Capacity 45 Tons/Hour Istianto Budhi Rahardja; Juni Afriani; Ahdiat Leksi Siregar; Daruki Daruki; Deni Almanda; Firmansyah Firmansyah; Anwar Ilmar Ramadhan; Mohd Hamisa Abdul Hamid
Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.5.2.67-76

Abstract

The processing of Fresh Fruit Bunches into crude palm oil and palm kernel can be done by starting to boil the Fresh Fruit Bunches until they are ripe, after the Fresh Fruit Bunches are ripe, then separate the bunches from the fiber by going through the slaughtering process, after which the fiber is then chopped and immediately pressed so that the oil comes out. After the oil and fiber are separated, the fiber will go to the fiber cyclone. Fiber cyclone is a device located at the solids station, the main function of the fiber cyclone is to separate the nut and fiber by sucking the fiber using air, through the ducting column and will exit through the air lock and then go to the boiler to be used as fuel. The fiber cyclone has a speed of 10.08 m/s for the velocity box, a vertical column of 6.86 m/s, and 8.57 m/s for the horizontal column. Fiber cyclone has 1 loss point for kernel, what is analyzed is the output of fiber cyclone which is fiber taken from air lock, the standard loss for fiber cyclone is 0.10%.
Co-Authors Abduh Al Afghani Adhes Gamayel Agustiawan Agustiawan Ahdiat Leksi Siregar Ahmad Mahfud Akmal Imam Faisal Alvika Meta Sari Anita Rahayu Anwar Ilmar Ramadhan Azhar Basyir Rantawi Cenda E. Hasibuan Dani Saputra Daruki Daruki Deni Almanda Djoko Hadi Prajitno Dodi Mulyadi Edwin Haryanto Efrizon Umar Efrizon Umar Erlangga Abinanda Ery Diniardi Fikriyansyah Fikriyansyah Firmansyah Firmansyah Gerhard Alex Sitorus Hayya Afifah Januar Parlaungan Siregar Juni Afriani Kezia Alfa Sarandon Kushendarsyah Saptaji M Rifqi Aziz M. Subroto Aliredjo Mohd Hamisa Abdul Hamid Muhammad Dadi Saputra Muhammad Malik Arifandi Muhammad Soleman Muhammad Sopyan Mutiara Salsabila Nana Rahdiana Priyantini Dewi Rahmawati Suryani Rian Fitriana Riyan Ariyansah Samsi Samsi Siti Purwani Sobri Sobri Sobri Sobri Sri Rejeki Ambarita St Nugroho Kristono St. Nugroho Kristono St. Nugroho Kristono Sukarman Sukarman Sukarman Sumanto Teguh Binardi Tri Yuni Hendrawati Yudi Dermawan Yusuf Aditya Nugraha