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All Journal Jurnal Teknologi Prosiding Semnastek JRST (Jurnal Riset Sains dan Teknologi) Journal of Applied Sciences and Advanced Technology

Ery Diniardi

Universitas Muhammadiyah Jakarta

Author-ID : 3258856

Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering

Published : 22 Documents Claim Missing Document

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Articles

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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.

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

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.

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.

Stamping Disability Analysis on Material SPC 270 E Sri Anastasia Yudistirani; Kisman H. Mahmud; Ery Diniardi
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.3.3.75-80

Good production results will be a benchmark for a company to compete in today's free market era. To improve good quality is determined by several factors, including: raw material factors, production processes, labor, the state of the engine or dies and the environment. Basically, the production results are not all good, because there are several factors that influence it, as noted above. To overcome this, a company sets a quality requirement because it is very useful for good and quality production results. In determining good quality, it is necessary to conduct a research on the raw material at the SPC 270 E foot step by means of the testing method that will be carried out. The testing methods carried out consist of: tensile testing, hardness testing, metallographic testing, chemical composition testing, and dye penetrant testing. From the results of the research that has been done, it can be seen that the thinning material has an average tensile strength of 307.41 N/mm2, the standard used by the company is 270 - 323 N/mm2 and is still in accordance with the tolerance value. Whereas the material with a lump has an average Vickers hardness value of 124.24 HV, the standard used by the company is 135 HV and still fits the tolerance value.

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.

Hardness Analysis of Bearing on Heat Treatment Process Kisman H Mahmud; Sri Anastasia Yudistirani; Ery Diniardi; A I Ramadhan
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

Bearing is a mechanical element that resembles a loaded shaft, so that rotation or back and forth motion can be smooth, safe and long lasting. Bearings should be sturdy and durable to allow the shaft and other machine elements to work properly. If the bearing is not working properly then the performance of the whole system will decline or not work properly. For this reason, materials from high-carbon steel bearings should be durable and durable. To obtain the desired properties of the metal, the Heat Treatment process, especially the outer and inner ring, is used. Hardness testing of the outer and inner ring of the bearing is performed after the Heat Treatment process. Testing the violence using the Digital Rockwell Hardness Tester, the value of the violence can be read directly on the scale of the tool. The Heat Treatment process of the outer and inner ring of the bearing can produce the mechanical properties that the manufacturer wants, namely Rockwell hardness 62-64 HRC. If the result of the hardness test is in accordance with the factory standard, then the outer and inner ring meet the manufacturer's quality requirements.

Analisa Penyusutan Produk Plastik di Proses Injection Molding Menggunakan Media Pendingin Cooling Tower dan Udara dengan Material Polypropylene Anwar Ilmar Ramadhan; Ery Diniardi; Muhammad Daroji
JRST (Jurnal Riset Sains dan Teknologi) Volume 1 No. 2 September 2017: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Shrinkage merupakan suatu cacat berupa perubahan dimensi produk hasil proses injection molding. Pendinginan mold merupakan salah satu faktor yang mempengaruhi cacat produk shrinkage. Pendinginan pada mold dapat dilakukan dengan media pendinginan udara ( air cooling ) atau fluida (water cooling). Pemanfaatannya tergantung dari efektivitas pendinginan yang perlu dicapai sehingga produk cepat berada pada batas temperatur sentak yang diijinkan sesuai material plastik, fasilitas yang tersedia dan konstruksi pendinginan yang mendukung. Pengujian dilakukan menggunakan material polypropylene dengan parameter yang konstan seperti waktu injeksi 1 detik, tekanan injeksi 650 bar, kecepatan injeksi 25 mm/s dan temperatur leleh 230°C - 240°C, serta variabel backpressure yang digunakan pada masing – masing zat pendinginan yaitu 15 kgf/cm2, 25 kgf/cm2, dan 35 kgf/cm2. Pada pengujian pendinginan cooling tower dengan menggunakan settingan temperatur leleh 230°C - 240°C dengan waktu injeksi 1 detik dan backpressure 15 kgf/cm2 nilai shrinkage-nya adalah 1,65%, dan backpressure 25 kgf/cm2 nilai shrinkage-nya 1,57 % serta pada backpressure 35 kgf/cm2 nilai shrinkage-nya adalah 1,49 %. Pada pengujian menggunakan pendinginan udara dengan menggunakan settingan yang sama seperti pada pendinginan cooling tower didapat nilai shrinkage pada backpressure 15 kgf/cm2 adalah 1,78 %, dan backpressure 25 kgf/cm2 nilai shrinkage sebesar 1,7 %, serta pada backpressure 35 kgf/cm2 nilai shrinkage-nya adalah 1,61 %. Berdasarkan hasil pengujian, shrinkage pada pengujian injection molding dengan pendinginan cooling tower lebih kecil dibandingkan pada pengujian injection molding dengan pendinginan udara. Hal ini disebabkan karena laju perpindahan panas konveksi maupun konduksi yang terjadi pada pendinginan cooling tower lebih baik dibandingkan dengan menggunakan pendinginan udara, sehingga pemerataan panas pada mold akan lebih merata dan akan memiliki temperatur yang konstan.

Co-Authors A I Ramadhan Achmad Nuril Fajar Alvaro Costa Neto Alvika Meta Sari Anwar Ilmar Ramadhan Dede Erland Ramadhan Deni Almanda Erwin Dermawan Firmansyah Firmansyah Hasan Basri Hayya Afifah Istianto Budhi Rahardja Januar Parlaungan Siregar Jaref Darmawan Kisman H Mahmud Kisman H. Mahmud Muhammad Arifangga Muhammad Daroji N Nelfiyanti Nurul Hidayati Fithriyah Syawaluddin Syawaluddin Thomas Djunaedi Waldi Isnaini Yudi Dermawan

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