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All Journal Sinergi Jurnal Abdimas ADPI Sains dan Teknologi International Journal of Innovation in Mechanical Engineering and Advanced Materials
Zakaria, Supaat
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Astronomy Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PROPOSE SAFETY ENGINEERING CONCEPT SPEED LIMITER AND FATIGUE CONTROL USING SLIFA FOR TRUCK AND BUS Pranoto, Hadi; Adriansyah, Andi; Feriyanto, Dafit; Wahab, Abdi; Zakaria, Supaat
SINERGI Vol 24, No 3 (2020)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2020.3.009

Abstract

In 2015, there were 55 deaths from 6,231 accident cases that occurred in Jakarta. A severe problem in Indonesia is the absence of a unique safety device in both commercial transport or personal vehicles and the very high complexity problem of human highways. Consequently, there are many traffic accidents caused by the negligence of the driver, such as driving a vehicle in a drunken, tired, drowsy, or over-limit speed. Therefore, it needs to be innovative using devices to increase speed but able to detect the level of tired or sleepy drivers. This paper tries to propose a concept of improving safety engineering by developing devices that can control the speed and level of safety of trucks and buses, named SLIFA. The proposed device captures the driver's condition by looking at the eyes, size of mouth evaporating, and heart rate conditions.  Theses condition will be measured with a particular scale to determine the fatigue level of the driver. Some performance tests have been carried out on truck and bus with 122 Nm and 112 Nm torque wheels and 339 HP and 329 HP power values, respectively, and the minimum speed is 62 km/h. At a top speed of 70 km / h, the torque and power of the truck are 135Nm and 370HP, with average fuel consumption of 3.43 liters/km before SLIFA installation and average fuel consumption of 4.2 liters/km after SLIFA installation. SLIFA can be said to have functional eligibility and can cut fuel consumption by 81 percent.
PELATIHAN PENYELESAIAN SOAL INTEGRAL MENGGUNAKAN MATLAB SIMULINK GUNA MENUMBUHKAN MINAT SISWA PADA MATERMATIKA Feriyanto, Dafit; Romahadi, Dedik; Pranoto, Hadi; Zakaria, Supaat
Jurnal Abdimas ADPI Sains dan Teknologi Vol. 1 No. 1 (2020): Jurnal Abdimas ADPI Sains dan Teknologi
Publisher : Asosiasi Dosen PKM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47841/saintek.v1i1.132

Abstract

Mata pelajaran matematika perlu diberikan kepada peserta didik agar memilikikemampuan berpikir logis, analitis, sistematis, kritis, dan kreatif serta mempunyai kemampuanbekerja sama. Matematika adalah salah satu ilmu pengetahuan yang sangat penting yang diberikandi sekolah-sekolah. Matematika merupakan salah satu pelajaran yang diajarkan di sekolah-sekolahdengan frekuensi jam pelajaran lebih banyak dibandingkan dengan mata pelajaran lainnya. Tetapibanyak siswa yang merasa kurang mampu dalam mempelajari matematika karena dianggap sulitsehingga minat untuk mempelajari kembali matematika di luar jam sekolah sangat kurang.Berdasarkan permasalahan di atas, tim pengusul bertujuan memberikan kegiatan pembelajaranmatematika yang mudah dan menarik menggunakan software MATLAB di SMAN 95 Jakarta.Pelatihan telah sukses dilaksanakan dengan jumlah peserta 35 siswa. Dalam pelatihan tersebut,terlihat mahasiswa sangat antusias dalam belajar Matlab guna menyelesaikan soal-soal integral.Siswa telah dapat menyelesaikan soal integral pangkat 1-3 sehingga siswa merasa puas denganadanya pelatihan ini dan diharapkan adanya pelatihan-pelatihan serupa yang dilakukan di SMAN95 Jakarta.
Sustainable Biodiesel Production from Waste Cooking Oil and Crude Palm Oil Using a Custom Mini Pilot Plant Siang, Alan Ooi Lim; Leman, Abdul Mutalib; Feriyanto, Dafit; Abdulmalik, Samir Sani; Zakaria, Supaat
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.23734

Abstract

The widespread practice of reusing Waste Cooking Oil (WCO) in hawker food stalls, often for multiple frying cycles, presents a significant public health concern due to the degradation of the oil, which can lead to the formation of toxic compounds. These practices not only pose health risks, such as increasing the potential for cardiovascular diseases and cancer, but also contribute to environmental pollution when the oil is improperly disposed of. This study seeks to address these issues by converting WCO, along with crude palm oil (CPO), into biodiesel using a custom-designed mini pilot plant. The biodiesel production process involved a two-step reaction. The first step, esterification, was conducted using a 55:100 alcohol-to-oil volume ratio with 1% by volume sulfuric acid (H₂SO₄) as the acid catalyst, at 60°C, with a reaction time of 30 minutes and a stirring speed of 800 rpm. The second step, transesterification, utilized a 6:1 alcohol-to-oil molar ratio, with 1 wt.% sodium hydroxide (NaOH) as the alkaline catalyst, carried out at 70°C over the course of one hour. These conditions were carefully selected to optimize the conversion efficiency and to minimize the free fatty acid content, which is crucial for achieving a high yield of biodiesel. The results demonstrated that the mini pilot plant is highly effective in producing biodiesel from both WCO and CPO. The study also led to the development of a standard operating procedure (SOP) for the biodiesel production process, ensuring reproducibility and efficiency.
GREEN TECHNOLOGY FOR SUSTAINABLE AGRICULTURE: BIO-FERTILIZER PRODUCTION FROM MUNICIPAL WASTE TO PRESERVE THE ENVIRONMENT Sidik, Muhamad Afifi Muhamad; Leman, Abdul Mutalib; Feriyanto, Dafit; Abdulmalik, Samir Sani; Zakaria, Supaat
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 5, No 3 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v5i3.23743

Abstract

This study addresses the pressing issue of municipal waste (MW) management by proposing an innovative approach to transform residential solid waste into a valuable resource using green technology. MW, sourced from diverse sectors, undergoes various disposal methods, including incineration, recycling, and landfilling. In Malaysia, the composition of MW aligns with global trends, with food waste and plastic being the predominant categories. This research focuses on producing fertilizer from residential solid waste through a green technology process, utilizing a sequential procedure involving high pressure, high temperature, and energized water to de-polymerize hemicellulose and lignin, followed by microbial enzymatic fermentation. The developed green technology introduces a novel apparatus designed for treating MW in a high-temperature, low-pressure rotating vessel using indirect heating with thermal fluid. The experimental protocol involves four batches of MW samples, evaluating the mass differential before and after the treatment process. Furthermore, a 7-week observation period assesses chili plant growth as an indicator of fertilizer effectiveness. Results indicate a significant 71% mass reduction of MW, amounting to 201.26 kg, emphasizing the efficacy of the developed process. The investigation extends to plant height, comparing MW-derived fertilizer with commercial fertilizer over a 5-week period. Remarkably, chili plants fertilized with MW-derived fertilizer exhibit a greater height of 8.6 cm, surpassing the 7.3 cm observed with commercial fertilizer. This study concludes that MW-derived fertilizer is highly recommended for enhancing plant growth and health in Malaysia, suggesting a sustainable production system. The research not only contributes to waste management but also aligns with broader goals of promoting environmentally conscious and sustainable agricultural practices, emphasizing the potential of green technology in addressing the challenges of municipal waste.
Co-Authors Abdi Wahab Abdulmalik, Samir Sani Andi Adriansyah Dafit Feriyanto Hadi Pranoto Leman, Abdul Mutalib Romahadi, Dedik Siang, Alan Ooi Lim Sidik, Muhamad Afifi Muhamad