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All Journal Jurnal Teknologi Prosiding Semnastek DINAMIKA Jurnal Ilmiah Teknik Mesin Journal of Applied Sciences and Advanced Technology

Hasan Basri

Universitas Muhammadiyah Jakarta

Author-ID : 3258976

Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISA STRUKTUR MEKANIS PADA BILLET BESI BETON DI PROSES PENGEROLAN Ery Diniardi; Anwar Ilmar Ramadhan; Syawaluddin Syawaluddin; Hasan Basri; Erwin Dermawan
Prosiding Semnastek PROSIDING SEMNASTEK 2016
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Prosedur proses dan fabrikasi merupakan hal terpenting dalam menentukan ada tidaknya cacat atau perubahan metalurgi yang terjadi pada struktur komponen. Proses mekanis, termal, dan kimia dapat menimbulkan cacat mikroskopik dan makroskopik, cacat tadi mungkin berada di dekat permukaan atau didalam, biasanya cacat awal itu sendiri tidak terlalu membahayakan, tetapi ketika terjadi interaksi antara lingkungan (proses) dan tegangan dapat menimbulkan pertumbuhan cacat, dan cacat subkritis berubah menjadi cacat kritis. Tujuan penelitian ini adalah untuk menganalisa komposisi dan struktur logam kerusakan billet baja tulangan dalam hal ini pembilahan pada proses canai panas. Hasil pengujian kekerasan material yang diperoleh yaitu: material sempurna (produk import ø 10mm) memiliki kekerasan paling tinggi, yaitu sebesar 105.8 HRB, dikarenakan tingginya komposisi karbon sebesar 0.24%, dan silicon sebesar 0.25%. Pada Billet cacat no 3 (produk import ø 8 mm) menduduki posisi kedua dalam hal kekerasan dan komposisi Karbon maupun Silikon, yaitu sebesar 89.1 HRB dengan C 0.18% dan Si 0.24%. Posisi ketiga ditempati oleh Billet cacat no 1 (produk lokal ø 10 mm) yang memiliki kekerasan yaitu 73.85 HRB dengan C 0.15%, Si 0.17%. Posisi terakhir ditempati oleh Billet cacat no 2 (produk lokal ø 8 mm) dengan kekerasan sebesar 67.25 HRB dan Karbon 0.11%, Silikon 0.14%. Korelasi pengujian dan pengamatan dalam penelitian ini, dapat disimpulkan bahwa pembilahan yang terjadi di proses canai panas diakibatkan pada retakan tepi, sehingga terjadi laju keretakan akibat beban besar reduksi pada proses pengerolan (canai) yang menuju pusat billet dan tidak terlalu di pengaruhi oleh struktur bahan, tetapi lebih disebabkan oleh faktor kadar karbon dan silikon yang berbanding lurus dengan nilai kekerasan.Kata kunci : pembilahan, distribusi tegangan, komposisi, karbon, silicon

Analisa Kerusakan Proportional Solenoid ECMV Komatsu D375A -6R Hasan Basri; Anwar Ilmar Ramadhan
Prosiding Semnastek PROSIDING SEMNASTEK 2019
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Sistem Transmisi unit D375A -6R adalah system yang sangat penting, dalam meneruskan tenaga dan putaran dari engine ke Transmisi .Bila salah satu komponen dari system transmisi ini ada yang tidak berfungsi maka secara otomatis unit tidak bisa melakukan pergerakan secara baik atau sempurna. Sesuai dengan permasalah yang terjadi pada unit tersebut, yaitu pada komponen ECMV (Electric Control Modulating Valved), yaitu proportional solenoid. Maka, langkah pemeriksaan pertama adalah melakukan pemeriksaan secara visual, apakah terjadi kerusakan atau abnormal pada komponen proportional soneloid, dan apakah terdapat abnormal pada komponen yang lain dalam sistem transmissi tersebut, sebelum prosedur untuk remove dan dis-assembly yang sesuai dengan shop manual Setelah diketahui komponen yang rusak yaitu pada Proportional solenoid dan penyebab kerusakannya. Maka, diambil langkah perbaikan atau penggantian komponen pada sistim trasmissi. Sebelum langkah pemasangan komponen, terlebih dahulu dilakukan flushing untuk membuang sisa kotoran didalam sistim. Kemudian, pembersihan pilot filter, pemasangan proportional solenoid, mengisi transmisi oil kedalam transmisi sistem. Setelah langkah perbaikan dilakukan dan seluruh komponen terpasang dengan baik, langkah selanjutnya yaitu dilakukan kembali proses pengukuran tekanan untuk memastikan komponen telah bekerja dengan baik atau tidak. Setelah komponen bekerja dengan baik, dari hasil kerja tersebut lalu diambil kesimpulan dan saran yang dapat dijadikan pedoman pada saat terjadinya permasalahan yang sama atau dapat mengantisipasi kemungkinan kerusakan yang sama, sehingga dapat memperkecil break down time pada unit tersebut.

Analysis Structure and Function Cooling System on Unit D155A-6 Hasan Basri; Anwar Ilmar Ramadhan; Ery Diniardi
Journal of Applied Sciences and Advanced Technology Vol 1, No 2 (2018): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

As time went on many problems were encountered in the unit, one of which was the problem experienced by the D155A-6 unit, which was overheating troubleshooting caused by abnormal fan motors. In handling the problem, it is difficult to determine the data of the motor fan. Therefore, an initiative is needed to create tools to help deal with problems that occur. The purpose of this study is the manufacture of adapter tools for measurement of hydraulic pressure fan motors in troubleshooting the overheat engine in D155A-6 units. The results of this study are analyzing the structure and function of the cooling system in troubleshooting the overheat engine in the D155A-6 unit.

Analysis of the Tensile Strength of Composite Material from Fiber Bags Ery Diniardi; Nelfiyanti Nelfiyanti; Kisman H Mahmud; Hasan Basri; A I Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 2, No 2 (2019): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

The use of composite materials in Indonesia, as a nonmetal alternative material has begun to increase. Composite use has grown from water tanks from fiberglass materials, household appliances, children's toys, sports equipment, furniture/interior design to automotive components and aircraft. Many of the advantages of this composite material include hand, strong, anti-corrosion, finely tuned finish. Its mild nature has a direct impact on energy savings. The prospect of composite materials as a non-metal alternative material is rapidly growing and its use. Various types of reinforce used can be influenced by the prices available, so seek alternatives as a commonly used glass fiber substitute woven rowing. The substitute used is a sack of gourds of the same kind as woven rowing, from which the same type of fiber is tried to find its strength by undergoing a pull test. And as a result of the test the mateial can know its power.

Analysis Systems of Aftercooler on Bulldozer D375A-6R Hasan Basri; Jaref Darmawan; Ery Diniardi; A I Ramadhan; Firmansyah Firmansyah
Journal of Applied Sciences and Advanced Technology Vol 2, No 3 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

The bulldozzer is seen as the most efficient heavy equipment unit for mining, specifically dozzing and ripping material. The purpose of this study was to analyze damage due to cracks in the cooler afterwards which caused dust and dirt to enter the air intake system which caused excessive piston, piston ring and cylinder wear liners in the Bulldozer. The research method was conducted using 8-step troubleshooting analysis. The results and discussion are damage due to cracks in the after cooler which causes dust and dirt into the air intake system which causes the piston, piston ring and cylinder liner to wear out excessively. The piston, piston ring and cylinder liner have excessive scratching and wear, so the compression pressure that should be compressed inside the combustion chamber experiences a leak where the air enters the crankcase chamber.

Troubleshooting Blow by Pressure High on the Komatsu Bulldozer Unit D375A-6R Hasan Basri; Ery Diniardi; Anwar Ilmar Ramadhan
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

PT United Tractors Tbk Loajanan-sanga site backs up a large number of customers, one of which is PT. RCI (RPP Contractors Indonesia) which is engaged in coal mining with the Komatsu D375A-6R unit which is used for dozzing and ripping. From the D375A-6R unit at PT. RCI experienced Troubleshooting on engines which caused Blow by pressure high, which resulted in the engine low power and could not run because the oil engine continuously exited from the oil engine filling hole, if the engine is forced to operate it is feared that the engine oil will run out and the engine components it will experience excessive wear and can also experience jammed which results in the maximum performance of the D375A-6R komatsu unit.

Analysis of Steering Wheel Heavy Komatsu Dump Truck Unit (HD) 785-7 Hasan Basri; Ery Diniardi; Kisman H Mahmud; Syawaluddin Syawaluddin; Firmansyah Firmansyah
Journal of Applied Sciences and Advanced Technology Vol 2, No 2 (2019): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Steering system is a system control unit that is used for deflecting the direction of motion straight into to the left or to the right in accordance with the will of the operator. At 785-7 HD unit using the steering system type full hydraulic steering valve, where steering valve serves as a directional control valve to direct the oil flow at the time of engine working (pump work), whereas when the engine died steering valve will serve as a hand pump and directional control valve. Abnormaly steering wheel because there is a scratch on spool demand valve causing internal leakage in the demand valve so oil pressure which served as the pilot sensing to move the spool valve is a pressure demand would drop because there is a leak and could not afford to drive the spool until the full open- as a result the oil flow from the steering pump cannot be fully prioritized to steering valve to be forwarded to the steering cylinder.

Analysis of the Effect of Cutting Variables against Surface Hardness Ery Diniardi; Sri Anastasia Yudistirani; Hasan Basri; Anwar Ilmar Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (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.3.3.81-88

Indonesia is one of the developing countries and is actively pioneering development, especially development in the industrial sector. The industry that is quite developed at this time is the manufacturing industry which produces a finished product that can be directly used by consumers. These products are expected to have a high enough quality level so that they can compete in the market. To support this quality, one of the factors is to pay attention to the level of precision of the workpiece in this case is the level of surface roughness of the object or product produced. The surface roughness value is obtained from the tests carried out on the product which has an average surface value (Ra) and a maximum roughness value (Ry). To achieve the desired roughness value, it is necessary to make improvements in metal forming work. In the variable cutting with variations in cutting speed, it is said that the cutting speed on work with smaller diameter objects should use a high cutting speed. Feeding thickness that is too large can cause high surface roughness values and high rotation at low cutting speeds to produce a smooth surface but takes a long time. With the selection of the speed of ingestion that varies for the price of the ingestion speed of 43.52 m/minute, the surface roughness value is 6.78 m, the speed is 48.32 m/minute, the surface roughness value is 3.64 m and the ingestion speed is 59.25 m. /min the surface roughness value is 6.14 m. Meanwhile, for the infeed thickness which varies for a feed thickness of 1.2 mm, the surface roughness value is 4.06 m; a feed thickness of 2.4 mm obtained a surface roughness value of 27.82 um and a feed thickness of 3.2 mm obtained a surface roughness value of 7.02 m.

Design of Water Heating By Utilizing Waste Heat of Air Conditioner Hasan Basri; Ery Diniardi; Anwar Ilmar Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (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.3.3.89-96

This plan aims to minimize wasted energy in the air freshener system and utilize the wasted energy to heat water. Here using a split type air conditioner system which is commonly used. The author slightly modified the air conditioning system which previously used an air conditioning condenser, here the author added a condenser with a water cooler that functions as a condenser and at the same time as a water heater. The energy used to heat the water is obtained from the heat released by the refrigerant so as to minimize the energy wasted when only using an air conditioning condenser. But the air conditioning condenser is still used in this system, because when hot water is not needed, the water in the heater does not flow and of course cannot take heat from the refrigerant. In this condition the air conditioning condenser can work to help the process of releasing heat from the refrigerant. This tool can heat water up to 43oC with a flow rate of 1 liter per 9 seconds which can be used at home, SOHO, office for bathing, washing face, washing hands, etc.

STUDI EKSPERIMENTAL PERPINDAHAN PANAS DAN PENURUNAN TEKANAN DARI HIBRIDA NANOFLUIDA DI PENDINGIN RADIATOR MOBIL Ery Diniardi; Hasan Basri; Anwar Ilmar Ramadhan; Deni Almanda; Alvika Meta Sari
Jurnal Teknologi Vol 14, No 2 (2022): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.14.2.221-232

The use of nanoparticle coolants in car radiators increases the rate of heat transfer and allows for a smaller overall radiator size. The transfer characteristics of hybrid nanofluids with various compositions of TiO2-SiO2 (40:60, 60:40, 80:20) based water/EG nanoparticles for a volume concentration of 1.0% were investigated experimentally. By dispersing the hybrid nanofluids in a mixture of water/ethylene glycol (60:40), the composition of the TiO2-SiO2 nanoparticles (40:60, 60:40, 80:20) was varied for a volume concentration of 1.0%. Experiments were carried out using a coolant flow rate between 2-12 LPM for a working fluid temperature of 70 °C, while the air flow velocity remained constant at an average of 4 m/s, to understand the effect of coolant flow velocity on heat transfer. The thermal performance of hybrid nanofluids in a water/EG mixture (60:40) was investigated for variations in the composition of TiO2-SiO2 nanoparticles (40:60, 60:40, 80:20) for a volume concentration of 1.0% and a working temperature of 70 °C. The heat transfer coefficient obtained is 32.1%, the maximum increase occurs in the TiO2-SiO2 nanofluid with the composition (40:60), while the 29.2% increase occurs in the nanofluid hybrid (60:40), for the nanofluid hybrid (80:20) it is an increase of 31.1%.

Co-Authors A I Ramadhan Alvika Meta Sari Anwar Ilmar Ramadhan Deni Almanda Dhian Trisnadi Setyawan Erwin Dermawan Erwin Dermawan Ery Diniardi Firmansyah Firmansyah Jaref Darmawan Kisman H Mahmud N Nelfiyanti Rasma Rasma Rasma Rasma Syawaluddin Syawaluddin Syawaluddin Syawaluddin Syawaluddin Syawaluddin

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