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All Journal JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Lestari, Dwi Mardika
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Automotive Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGARUH PENYETELAN KATUP PADA ENGINE 4K 4 SILINDER 1300CC TIPE OHV TERHADAP EMISI GAS BUANG Lestari, Dwi Mardika; Ahmad Rizal Fauzi
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 3 No 1 (2021): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (636.205 KB) | DOI: 10.52005/permadi.v3i1.46

Abstract

Indonesia is a country that has a lot of users of motorized vehicles, this is because the level of consumer need to have a motorized vehicle is very high. Cars are one of the favorite vehicles for Indonesian citizens. Because cars provide more comfort and security and now many cars are becoming luxury goods. So many people are turning to cars as their everyday vehicles. Many people want to own a car but at a cost that is not too high, namely by buying a used car. This is where used cars usually have various problems, especially in the engine and exhaust emissions that are not up to standard, therefore it is necessary to repair the car engine. In this study contains about Toyota Kijang 4K valve adjustment variations which have engine problems. To study this study there are two methods used, namely the first is the primary method obtained from direct practice and observation. The second is the secondary method, namely the method taken from internal data and external data. This research data collection resulted from variations in the valve gap ex 0.30mm valve in 0.15mm, valve ex 0.30mm valve in 0.20mm and valve ex 0.30mm valve in 0.25 at engine speed of 1000 rpm, 1500 rpm, rpm 2000, 3000 rpm, and 3500 rpm. The conclusion from the results of this study is that there is a significant effect of valve adjustment on exhaust gas emissions on a 1300cc 4k 4 cylinder 1300cc stand engine OHV type.
MODIFIKASI ALAT PENYEMBELIH SAPI SEDERHANA SISTEM KANDANG JEPIT Budriyadi, Syefi; Lestari, Dwi Mardika; Mardiyana, Dani
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 4 No 1 (2022): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v4i1.72

Abstract

The process of slaughtering cattle at Slaughterhouses (RPH) usually uses a Killing Box which functions as a place for slaughter by clamping and laying the cows down so that handling during slaughter is easier. However, this tool is still quite expensive, so not all abattoirs use this tool in the slaughtering process. The traditional way is still widely used, namely by pulling/slamming the cow's body so that it is helpless. The cattle slaughtering tool with the clamp cage system that has ever been made is quite helpful and makes it easier to slaughter animals. However, there are still some drawbacks to this tool, including the alternating wires that have broken, the wheels are damaged quickly, and the lack of bottom supports. Therefore, it is necessary to modify this cattle slaughtering tool so that no more problems occur. In this research, modifications are limited to the frame, alternating wire and wheels. The method used in this research is analytical calculation method. The results showed that the fixed frame and movable frame materials did not need to be replaced because the maximum stress received by each frame was still below the allowable stress, while the alternating wires had to be replaced with wires with a minimum diameter of 8 mm. bottom support that can withstand a load of 225 kg/pc
STUDI KASUS KONDISI RADIATOR PADA PERFORMA MESIN SISTEM PENDINGIN MELALUI KOMPUTASI DINAMIK FLUIDA DI PLTD BATAKAN Lestari, Dwi Mardika; Kurniawan, M. Arief
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 4 No 1 (2022): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v4i1.75

Abstract

Computational fluid dynamics (KDF) is a commonly used method to solve physics cases that have the advantage of reducing operating costs, especially in the study of cooling systems in engines. In this study, the engine cooling system observed was located at the Diesel Power Plant (PLTD), Batakan. The cooling system on the engine has several important components that affect performance, one of which is the radiator. The condition of the radiator is observed with different fin designs, namely ideal conditions with fins (100%), 75%, and 50%. KDF helps to provide a detailed analysis of the performance of the engine cooling system. Under ideal conditions, the value of the temperature difference between the inlet and outlet in high temperature (HT) and low temperature (LT) pipes is 220C. From this study gave results, the condition of the radiator fins that were not ideal resulted in a decrease in temperature difference between the inlet and outlet in the HT and LT pipes.
Co-Authors Ahmad Rizal Fauzi Budriyadi, Syefi Dani Mardiyana Kurniawan, M. Arief