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Rahmat Noval
Politeknik Negeri Jakarta
Chemical Engineering, Chemistry & Bioengineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Dynotest Design Analysis for Electrical Converted Vehicles Danardono Agus Sumarsono; Fuad Zainuri; Muhammad Hidayat Tullah; Rahmat Noval; Sonki Prasetya; Rahmat Subarkah; Tia Rahmiati; Widiyatmoko widi; Muhammad Ridwan
Recent in Engineering Science and Technology Vol. 1 No. 1 (2023): RiESTech Vol. 1 No. 1 Years 2023
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v1i01.3

Abstract

The study comprises dynotest design and analysis to measure torque and horsepower. Basically, a dynotest carried out by apply certain load to the axle of a combustion motor through the braking mechanism of its crankshaft. Due to the high price of a Dynotest unit in the market, it is relatively difficult for a developing institution to own it on their site. The study target to design a simple and good accurate Dynotest within a reasonable price. The study used a common standard method for design analysis which rely on function and structural approach. Functionally, Dynotest is designed to be used to an ouput of an electical motor. Loading on motor shaft was done by disc brake braking mechanism. Structurally, Dynotest was designed to use rollers. As a main component, its mounting construction is connected to a motor to generate electrical power. Power transmitted from the motor to Dynotest through a center joint shaft, torque measured by load cell while the rotation of shaft itself counted by a digital tachometer. Test result show that electricity was produced from the simple construction and Dynotest functioned well in measuring it. Measurement data of roller support shaft performance showed a motor torque performance curve which are similar with the typical of similar Dynotest. Construction Test done by applying Solid Work software analysis to some components partially on rollers and on the construction assembly as a whole unit
Electric Vehicle Conversion Study for Sustainable Transport Fuad Zainuri; Muhammad Hidayat Tullah; Sonki Prasetya; Iwan Susanto; Dewin Purnama; Rahmat Subarkah; Tia Ramiati; Widiyatmoko; Rahmat Noval
Recent in Engineering Science and Technology Vol. 1 No. 2 (2023): RiESTech Vol. 1 No. 2 Years 2023
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v1i02.15

Abstract

The conversion of conventional motor vehicles to electric vehicles has become a popular choice in an effort to reduce greenhouse gas emissions and air pollution from transportation. Electric vehicle conversion involves replacing a gasoline or diesel engine with an electric motor and a reinstalled battery. In this paper, we cover the basics of electric vehicle conversion, conversion methods, and trial results of converted electric vehicles. We also discuss the benefits and challenges of converting to electric vehicles. Some keywords related to this topic include: electric vehicles, vehicle conversion, electric motors, batteries, sustainable transportation.
Study on Engine Learning Experiencing Low Power On Cummins QSL 9.3L Engine Raihan Trinanda Agsya; Rahman Filzi; Rahmat Noval; Hong Yue
Recent in Engineering Science and Technology Vol. 2 No. 2 (2024): RiESTech Vol. 2 No. 2 Years 2024
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v2i02.55

Abstract

The Cummins QSL 9.3L diesel engine is a production engine from CLG or Cummins Liugong. This type of engine is typically used in heavy equipment such as Wheel Loaders. A diesel engine is an internal combustion engine where the combustion process occurs inside the engine itself, and pure air is compressed within the combustion chamber, resulting in high air pressure. It operates in four strokes. This engine experienced low power, causing it to malfunction, which led to abnormal operation. Various checks were conducted, including inspection of diesel fuel, fuel tank inspection, engine oil level check, visual inspection of the air cleaner, water separator check, Fuel Feed Pump check, and Clearance Valve Lash check. The problem identified was the mismatch of Valve Lash clearance in the engine, resulting in low power. The repair step involved adjusting the Valve lash using a Feeler Gauge. The purpose of this research is to provide an explanation of troubleshooting and to perform repairs on engines experiencing low power
Analisis Penyebab Diesel Engine Low Power MTU 10V1600 Dengan Metode 7 Step Troubleshooting Sukron Athoillah Rasyid; Rahmat Noval; Ahmad Bustomi
JOURNAL SAINS STUDENT RESEARCH Vol. 4 No. 5 (2026): Oktober: Jurnal Sains Student Research
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v4i5.12432

Abstract

The diesel engine MTU 10V1600 installed in the P01912 power car unit experienced a low power phenomenon that reduced its operational performance. This study aims to analyze the root cause of the failure using a descriptive qualitative method, with data collected through field observation, technician interviews, and literature study, integrated with the 7 Step Troubleshooting method, Root Cause Analysis (RCA), and a fishbone (Ishikawa) diagram based on the 5M categories (Man, Machine, Method, Material, Measurement). The investigation found that the main root cause of the low power was a failure in the air intake and exhaust system, consisting of massive deposits on the turbocharger compressor blades, total blockage of the intercooler passages, and a clogged air filter element, which collectively restricted the air supply to the combustion chamber and reduced engine speed from the standard 1,500 RPM (50 Hz) to 1,402 RPM (45.2 Hz). Corrective actions, namely turbocharger replacement and intercooler cleaning, successfully restored the engine output power to the manufacturer's standard specification of 400 kW (536 HP) at 1,500 RPM and 50 Hz, as confirmed by a running and performance test. This study recommends an update to the preventive maintenance Standard Operating Procedure (SOP), including daily dust indicator inspection, hour-meter-based air filter replacement, and periodic boost pressure monitoring, to prevent recurrence of similar failures in power car units in the future.
Co-Authors Ahmad Bustomi Danardono Agus Sumarsono Dewin Purnama Fuad Zainuri Hong Yue Iwan Susanto Muhammad Hidayat Tullah Muhammad Ridwan Rahman Filzi Rahmat Subarkah Raihan Trinanda Agsya Sonki Prasetya Sukron Athoillah Rasyid Tia Rahmiati Tia Ramiati Widiyatmoko Widiyatmoko widi