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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY IKRA-ITH ABDIMAS Indonesian Journal of Engineering and Science (IJES) Journal of Engineering and Technological Sciences
M Ihsan Riady
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Effect Analysis of Boiler Feed Water and Exhaust Gas Turbine Generator against Steam Products M Ihsan Riady; Bazlina Dawami Afrah; Nabilla Tania Rahma; Edda Anastasia Oktawina
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 1 (2024): June 2024 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v8i1.9766

Abstract

The boiler is a tool that functions to produce steam, consisting of two important parts, namely the heating kitchen to produce heat obtained from burning fuel and the proper boiler to convert water into steam. The petrochemical industry, in terms of meeting steam needs, uses supply from the 4003-U waste heat boiler (WHB), namely a boiler that utilizes exhaust gas from a gas turbine generator (GTG). WHB operation uses two sources of heat and fuel, namely exhaust gas from GTG and natural gas. The calculation method used to determine the results of steam products from WHB is the calculation of heat value and efficiency. Based on calculation data for the period 03 October-09 October 2022, efficiency values range from 67-74%. The size of the WHB efficiency is greatly influenced by several factors, namely the quality of the boiler feed water (BFW), the quality of the fuel and heat source, the quality and amount of combustion air and how much heat is lost through the boiler tubes.
EXPERIMENTAL STUDY OF VERTICAL AXIS WIND TURBINE WITH PRE-SWIRL AUGMENTED Riady, M. Ihsan; Santoso, Dyos; Ervega, Frandiaz Agustan
Indonesian Journal of Engineering and Science Vol. 5 No. 1 (2024): Table of Contents
Publisher : Asosiasi Peneliti Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51630/ijes.v5i1.107

Abstract

The paper presents an experimental investigation on a vertical axis wind turbine that utilizes pre-swirl augmentation through a concentric stator and rotor system. The study's main objective is to demonstrate that incorporating a stator as a guide blade can significantly enhance the turbine's performance. The rotor is positioned in the inner region of the turbine and is rotated by the flow induced by the stator surrounding it in the outer region. The stator accelerates the incoming wind before it reaches the rotor. The turbine has five rotor blades and has been tested with stator guide blades varying from zero to six and twelve. Both the guide rotor and blades use a modified cp-100-050-gn cambered plate airfoil. The tests were conducted at an average wind speed of 4 m/s. The results indicate that utilizing a stator with six guide blades leads to a 52% increase in the power coefficient, while a stator with 12 guide blades yields a slightly higher increase of 58%. Moreover, the turbine with a stator comprising 12 guide blades takes less time to attain maximum speed under no-load conditions than the one with a stator with six guide blades.
Pemberdayaan Masyarakat Tanjung Seteko Mengelola Sampah Sebagai Eco-Enzyme Mewujudkan Zero Waste Berkelanjutan Komariah, Leily Nurul; Cundari, Lia; Riady, M. Ihsan; Afrah, Bazlina Dawami; Gayatri, Rianyza; Anggraini, Dwi; Fitri, Rizza Fadillah; Al-Faiz, Ahmad Haris; Zalman, Arjun; Ariva, Helmi
IKRA-ITH ABDIMAS Vol. 9 No. 2 (2025): Jurnal IKRAITH-ABDIMAS Vol 9 No 2 Juli 2025
Publisher : Universitas Persada Indonesia YAI

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Abstract

Desa Tanjung Seteko di Kecamatan Indralaya, Kabupaten Ogan Ilir, Sumatera Selatan, memiliki penduduk yang terdiri dari keluarga dengan ibu rumah tangga sebagai anggota keluarga utama. Penggunaan detergen kimia sebagai pembersih lantai di desa ini seringkali mengakibatkan dampak lingkungan negatif akibat zat kimia. Untuk mengatasi masalah ini, solusi ramah lingkungan adalah dengan memanfaatkan sampah organik sebagai bahan baku eco-enzyme, cairan serbaguna yang mengandung alkohol, enzim, dan unsur hara, yang dapat digunakan sebagai pembersih lantai alternatif. Desa Tanjung Seteko memiliki potensi besar dalam menghasilkan limbah organik dari perkebunan dan rumah tangga, tetapi pengetahuan masyarakat dalam mengubahnya menjadi produk bernilai masih rendah. Kegiatan ini bertujuan untuk memberdayakan masyarakat dalam mengolah sampah organik menjadi pembersih lantai ramah lingkungan. Metodenya mencakup tahap pra-pelaksanaan, pelaksanaan, dan evaluasi. Hasil uji menunjukkan efektivitas eco-enzyme dalam membunuh kuman mencapai 50%. Program ini menciptakan nilai tambah dari sampah organik dan mendapat respons positif dari masyarakat untuk mewujudkan zero waste berkelanjutan.
Analysis of Liquid Smoke Grade Characteristics from Coconut Shells and Palm Kernel Shell Waste Through a Slow Pyrolysis Process Afrah, Bazlina Dawami; Riady, M. Ihsan; Payomthip, Panida; Ramadhanty, Rizky Vasya; Rizki, Fadhilah; Alfayyadh, Muhammad Luthfi
Journal of Engineering and Technological Sciences Vol. 56 No. 4 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.4.10

Abstract

This research was motivated by the abundance of biomass plantations in Indonesia. Accumulated biomass waste will cause environmental problems. Biomass processing can resolve this issue, by producing functionally and economically valuable products. The purpose of this research was to increase the value of biomass by processing it as liquid smoke through pyrolysis and then proceeding to the purification stage. The purification method applied in this research was a combination of distillation and adsorption processes using natural zeolite. The variables of this research were: two types of biomass, namely coconut shells and palm kernel shells, and liquid smoke grade variations. The analysis parameters were: pH, viscosity, density, acid content, and phenol analysis as well as GC-MS. The characteristics analysis results showed that all liquid smoke samples met the Japanese liquid smoke standard. Based on pH, acid, and phenol analysis, the liquid smoke from the coconut shells sample had better quality compared to the liquid smoke from palm kernel shells, namely with pH 2.36, acid content 0.26 mg/mL, and phenol 2,368.75 ppm. The GC-MS test results indicated that grade-1 liquid smoke from both samples contained antibacterial compounds, such as phosphonic acid, formic acid, and carbamic acid, which have the potential to inhibit bacterial growth.
Co-Authors Al-Faiz, Ahmad Haris Alfayyadh, Muhammad Luthfi Ariva, Helmi Bazlina Dawami Afrah Cundari, Lia Dwi Anggraini Dyos Santoso Edda Anastasia Oktawina Ervega, Frandiaz Agustan Fitri, Rizza Fadillah Gayatri, Rianyza Leily Nurul Komariah Nabilla Tania Rahma Payomthip, Panida Ramadhanty, Rizky Vasya Rizki, Fadhilah Zalman, Arjun