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All Journal Jurnal Teknologi Sinergi Journal of Applied Sciences and Advanced Technology International Journal of Applied Research and Sustainable Sciences (IJARSS)
Rahardja, Istianto Budhi
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Religion Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Efficiency Analysis of Ripple Mill Capacity 6 Ton/Hours on Maintenance Machine Siregar, Ahdiat Leksi; Zulfiah, Riyansa Devi; Rahardja, Istianto Budhi; Rantawi, Azhar Basyir; Saputera, Hendra
Journal of Applied Sciences and Advanced Technology Vol 6, No 2 (2023): 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.6.2.75-82

Abstract

Ripple mill is a machine used to crush palm kernels at the nut & kernel station. This research aims to find out how the ripple mill machine works and determine the relationship between machine maintenance carried out on the performance efficiency of the ripple mill. The working principle of a ripple mill is that palm kernels that are fed into the ripple mill will be ground and crushed between the rotor and stator with an engine speed of 1200 rpm. The components contained in the ripple mill are the rotor bar which consists of 40 bars arranged in a circle, the stator bar consists of 18 bars at the front and 18 bars at the back, the v-belt pulley used is of the type B65 and B67 according to the position of the motor, then the flange bearing is used as a position for the shaft on the rotor before connecting to the pulley. Based on the results of research that has been carried out, it was found that the feed entering the ripple mill is 5.6 tons / hour with an installed capacity of 6 tons / hour. The working hours that have been set for the ripple mill are 300 operating hours, after observations it was obtained that it was 320 operating hours with the efficiency results obtained remaining in accordance with the predetermined standards, namely 95% - 99%.
Fuel Consumption in an Organic Fertilizer Processing Machine Asbanu, Husen; Chan, Yefri; Esye, Yendi; Faturachman, Danny; Rahardja, Istianto Budhi
Jurnal Teknologi Vol 16, No 2 (2024): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.16.2.233-240

Abstract

The demand for organic fertilizer is crucial for small-scale farming businesses, particularly when compared to chemical fertilizers, which are expensive and negatively affect long-term soil fertility. This study aims to determine the specific fuel consumption requirements for gasoline engines used in organic fertilizer processing machines based on the workload applied to the engine. The research compares the actual specific fuel consumption and fuel consumption times for three types of gasoline, RON 90, RON 92, and RON 98, under an engine operating load of 3 kg. The results show that for a 3 kg load, the specific fuel consumption is 10 milliliters for RON 90, 35 milliliters for RON 90, and 25 milliliters for RON 92. The time savings for operating under a 3 kg load are 2.91 minutes with RON 90, 1.99 minutes with RON 92, and the lowest time savings of 0.92 minutes with RON 98.
Analysis Characteristics Hybrid Coolant Nanoparticles As a Cooling Media for Genset Generator Rantawi, Azhar Basyir; Saputra, Hendra; Siregar, Ahdiat Leksi; Rahardja, Istianto Budhi; Susanto, Edy; Ramadhan, Anwar Ilmar
Jurnal Teknologi Vol 16, No 2 (2024): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.16.2.259-266

Abstract

Industry nanotechnology- based is a very significant new modern era, where throughout field develop and use it. In the world of technology as primary needs at the moment This for society, has Lots use results its products. Cooling system as balancers in the industrial world including generators require gensets research and development For cool diesel generator engine . Hybrid coolant has composition 30% material  natural and 70% distilled water. The addition nanoparticles to in hybrid coolant of 1% (TiO2-SiO2-Al2O3 ). The test was carried out is temperature point education, pH value, density. Analysis results The characteristics of hybrid coolant are point boiling 99°C, pH value between 5.79-6.06, as well mark density of 1,012-1,024.
Effect of Mass Composition on Nano Zircon Synthesize from Local Zircon Sand Using Soda-Precipitation-Calcination-Caustic Fusion Method Sari, Alvika Meta; Ramadhan, Anwar Ilmar; Rahardja, Istianto Budhi; Umar, Efrizon; Yudistirani, Sri Anastasia; Faisal, Akmal Imam; Fikriyansyah, Fikriyansyah; Azmi, Wan Hamzah
Jurnal Teknologi Vol 16, No 2 (2024): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.16.2.169-178

Abstract

Zircon sand has the major component of ZrO2 with impurities SiO2, Fe2O2, and TiO2. Zircon sand can be synthesized using various methods, such as caustic fusion method. This research purposed to determine the effect of the mass composition of NaOH on fusion process of zircon sand and to find the optimal mass ration of NaOH on yield and characteristics of nano zircon produced. This research was conducted using caustic fusion and precipitation process to obtain the mass ration of NaOH in best zircon sand fusion (melting) process. The nano zircon obtained was analyzed its size using SEM and chemical composition using FTIR. The result show that the correlation between NaOH ration and yield following the equation y = 0.42x2-2.532x+3.908 and R2 =0.9696. It showed that the higher NaOH composition will reduce the size of nano zircon. The optimum NaOH ratio is 1 : 3.6 with size od 41.983 nm and yield 1.84% which in white, odorless and powder texture. The FTIR spectrum showed the presence of the -Zr-O2 functional groups at wave numbers 600 – 700 cm-1.
Red Palm Oil from Crude Palm Oil Refinement Using The Acid Degumming Method Saputra, Hendra; Rantawi, Azhar Basyri; Siregar, Ahdiat Leksi; Rahardja, Istianto Budhi; Simatupang, Dimas Frananta
International Journal of Applied Research and Sustainable Sciences Vol. 2 No. 6 (2024): June 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijarss.v2i6.1957

Abstract

Red Palm Oil (RPO) is the result of refining Crude Palm Oil (CPO). In further processing to obtain cooking oil, several processes are undergone to produce a clear oil, which is very different from its original product, CPO. RPO is rich in beta-carotene and its refining process does not include bleaching. The production of RPO utilizes the acid degumming method with different acid variations, namely phosphoric and sulfuric acid, with varying concentrations of 0.05% and 0.075%. The results showed that the average percentage of RPO produced reaches 44.05%. Furthermore, the quality analysis of RPO also meets the SNI-3741-1995 standards (quality standard of cooking oil), with the average of free fatty acid value of 1.41% (max 3%), peroxide value of 1.04 mg oxygen/100 g (max 1.6 mg oxygen/100 g), and moisture value of 0.04% (max 0.3%).
Experimental investigation on stability and thermal conductivity of SiO2 nanoparticles as green nanofluids for application thermal system Ramadhan, Anwar Ilmar; Umar, Efrizon; Hendrawati, Tri Yuni; Sari, Alvika Meta; Rahardja, Istianto Budhi; Aziz, Azmairit; Firmansyah, Firmansyah; Yulianto, Sulis; Azmi, Wan Hamzah
SINERGI Vol 28, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.3.018

Abstract

In the last few years, much research has focused on the stability and improvement of the thermo-physical properties of single-component nanofluids. Some studies have not made many improvements to the stability and thermophysical properties of various types of green nanofluids from several variations of nanoparticles. Green nanofluids must be developed to improve heat transfer performance from their stability and thermal conductivity factors. Stability and thermal conductivity of Nano-silicate suspended in a base mixture of water /ethylene glycol with the ratio of 60:40, different volume concentrations were investigated. The experiments carried out were the stability of the green nanofluids investigated for volume concentrations of 0.1~0.3% and temperature conditions from 30 to 70°C for thermal conductivity measurement using TEMPOS Thermal Properties Analyzer. The experimental results showed that the stability analysis of the green nanofluids prepared by the UV-Vis method was stable up to 30 days after preparation with a sonication time of 1 hour with a ratio of 70-80%. The evaluation of the zeta potential for green nanofluids obtained a value of 33.57 mV with a moderate stability classification. The highest thermal conductivity for the green nanofluids was obtained at 0.3%, and the maximum increase was 17% higher than that of the base liquid (W/EG). Green nanofluids with a concentration of 0.1% gave the lowest effective thermal conductivity of 1.09 time at 70°C.
Co-Authors Alvika Meta Sari Anwar Ilmar Ramadhan Azmairit Aziz Azmi, Wan Hamzah Chan, Yefri Danny Faturachman, Danny edy susanto Efrizon Umar Esye, Yendi Faisal, Akmal Imam Fikriyansyah, Fikriyansyah Firmansyah Firmansyah Hendra Saputra Husen Asbanu Rantawi, Azhar Basyir Rantawi, Azhar Basyri Saputera, Hendra Simatupang, Dimas Frananta Siregar, Ahdiat Leksi Sulis Yulianto Tri Yuni Hendrawati Yudistirani, Sri Anastasia Zulfiah, Riyansa Devi