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All Journal Indonesian Journal of Science and Technology Communications in Science and Technology Molekul: Jurnal Ilmiah Kimia JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Jurnal Abdimas Kartika Wijayakusuma Asean Journal of Science and Engineering (AJSE) Indonesian Journal of Teaching in Science Automotive Experiences Journal of Mechanical Engineering, Science, and Innovation Fraction: Jurnal Teori dan Terapan Matematika JURTI Jurnal Teknik Industri Open Global Scietific Journal ASEAN Journal for Science and Engineering in Materials ASEAN Journal of Educational Research and Technology
Fiandini, Meli
Universitas Pendidikan Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Synthesis of Carbon Microparticles from Red Dragon Fruit (Hylocereus undatus) Peel Waste and Their Adsorption Isotherm Characteristics Asep Bayu Dani Nandiyanto; Rina Maryanti; Meli Fiandini; Risti Ragadhita; Dian Usdiyana; Sri Anggraeni; Wafa Raihana Arwa; Abdulkareem Sh. Mahdi Al-Obaidi
Molekul Vol 15, No 3 (2020)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.27 KB) | DOI: 10.20884/1.jm.2020.15.3.657

Abstract

This study aims to demonstrate the preparation of carbon microparticles obtained from red dragon fruit peel waste and their adsorption isotherm characteristics. The carbon microparticles were prepared by combining carbonization (at 250°C) and saw-milling process, and to get carbon microparticles with a specific size, sieve analysis was used. The adsorption isotherm was done by testing the adsorption ability of carbon microparticles with a specific size into curcumin solution in the batch-type reactor. The adsorption results were then compared to several standard isotherm models (i.e., Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models) for understanding what phenomena happen during the adsorption process. The adsorption analysis was also confirmed by testing several sizes of the carbon microparticles to predict the proposal mechanism in the adsorption process. The analysis results showed that the multilayer adsorption process occurs for all sizes in the micrometer range, and the process involves physical interactions between adsorbate and surface of adsorbent. The existence of multilayers is due to the possibility in the existence of porous structure in the carbon microparticles. This study is important for giving an alternative solution for reusable organic waste as well as supporting the fundamental researches in the further applications of carbon particles as catalyst and adsorbent.
Resin Matrix Composition on the Performance of Brake Pads Made from Durian Seeds: From Computational Bibliometric Literature Analysis to Experiment Asep Bayu Dani Nandiyanto; Dwi Novia Al Husaeni; Risti Ragadhita; Meli Fiandini; Dwi Fitria Al Husaeni; Muhammad Aziz
Automotive Experiences Vol 5 No 3 (2022)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.6852

Abstract

The purpose of this study was to analyze the effect of a resin composition on the performance of brake pads with durian seeds (BDs) as the base material. Experiments were done by attaching saw-milled BD particles to a polymer matrix. Various resin compositions were used for preparing the brake pad, which was then tested (press test, puncture test, and friction test). Physical properties (i.e., particle size, surface roughness, morphology, and density), as well as mechanical properties (ie: hardness, wear rate, and friction coefficient properties), were investigated. Based on observations, the best mechanical properties were found in the highest resin mixture, reaching a compressive strength value of 2.4 MPa. The impact of the homogeneity of the brake pad filler particles is the main reason. The high resin composition causes more cross-links to be formed. This research demonstrates the prospective environmentally friendly and inexpensive brake pads used to replace current products that use hazardous materials.
RANCANGAN HEAT EXCHANGER JENIS SHELL AND TUBE UNTUK PRODUKSI NANOPARTIKEL Fe3O4 SKALA INDUSTRI: DESIGN OF SHELL AND TUBE TYPE HEAT EXCHANGER FOR INDUSTRIAL SCALE Fe3O4 NANOPARTICLE PRODUCTION USING MATHEMATIC MODELING Mentari Putri Aprilia; Asep Bayu Dani Nandiyanto; Teguh Kurniawan; Meli Fiandini; Risti Ragadhita
Fraction: Jurnal Teori dan Terapan Matematika Vol. 2 No. 2 (2022): Fraction: Jurnal Teori dan Terapan Matematika
Publisher : Jurusan Matematika, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/fraction.v2i2.33

Abstract

Nanopartikel Fe3O4 merupakan jenis nanopartikel yang berperan penting dalam kehidupan industri. Namun, masih jarang ditemukan proses sintesis Fe3O4 menggunakan sistem heat exchanger pada skala industri sehingga penelitian ini dilakukan untuk merancang heat exchanger jenis shell and tube dalam proses produksi nanopartikel Fe3O4 pada skala industri. Metode yang digunakan pada penelitian ini yaitu perhitungan matematis menggunakan lebih dari 20 persamaan yang diturunkan berdasarkan pengaruh dimensi dan spesifikasi fluida dan kemudian data yang diperoleh diolah dengan menggunakan aplikasi Microsoft Excel. Rancangan alat HE memiliki spesifikasi panjang tube 4,572 m, diameter tube 0,0254 m, dan ketebalannya 0,0018 m. Lalu data diolah menggunakan software pengolah data Microsoft Excel. Hasilnya menunjukkan bahwa rancagan heat exchanger jenis shell and tube ini memiliki nilai efektivitas 93% dengan faktor kemurnian 0,01 jam.ft2.oF/Btu. Dari penelitian ini diketahui jenis HE shell and tube yang dirancang belum sesuai dengan standar yang telah ditetapkan oleh industri.
Interpretation of Fourier Transform Infrared Spectra (FTIR): A Practical Approach in the Polymer/Plastic Thermal Decomposition Asep Bayu Dani Nandiyanto; Risti Ragadhita; Meli Fiandini
Indonesian Journal of Science and Technology Vol 8, No 1 (2023): IJOST: April 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i1.53297

Abstract

Fourier transform infrared (FTIR) is one of the tools to represent molecular structure based on atomic vibration. It can denote a specific property of the chemical bond and molecular structure in the material, especially when analyzing specimens relating to plastics, polymers, and organic components. The FTIR peaks and spectrum act as a fingerprint of a specific molecular structure and chemical bonding, which need a sufficient reference database to distinguish them. This paper is to address issues of the need for a reference database of FTIR. This paper exhibits step-by-step information on how to read and interpret the FTIR spectra and identify a molecule's backbone with its functional groups. Practical examples from the analysis of several plastics/polymers and the thermally decomposing plastics/polymers were included to help and guide the reader to comprehend the basic concept of FTIR spectra.
Analisis Tekno-Ekonomi pada Produksi Nanopartikel Emas (AuNP) dengan Metode Biosintesis menggunakan Sargassum horneri pada Skala Industri Thyta Medina Salsabila Erlangga; Asep Bayu Dani Nandiyanto; Meli Fiandini
Jurnal Teknik Industri Vol 1, No 2 (2022)
Publisher : Fakultas Teknologi Industri, UNISSULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.489 KB) | DOI: 10.30659/jurti.1.2.103-110

Abstract

Biosintesis nanopartikel emas (AuNP) menggunakan ekstrak Sargassum horneri (SH) dinilai lebih ekonomis dan terbukti menghasilkan nanopartikel emas yang berperan sebagai katalis dalam degradasi zat warna. Oleh karena itu, produksi nanopartikel emas perlu dikembangkan dalam skala industri. Penelitian ini bertujuan untuk mengetahui kelayakan proyek biosintesis nanopartikel emas menggunakan ekstrak Sargassum horneri dalam skala industri. Metode evaluasi ekonomi menggunakan analisis terhadap beberapa parameter evaluasi ekonomi seperti Gross Profit Margin (GPM), Break Even Point (BEP), Cumulative Net Present Value (CNPV), Payback Period (PBP), dan Profitability Index (PI). Hasil penelitian menunjukkan bahwa pada skala industri, jumlah produksi Nanopartikel Emas dalam setahun adalah 132 L. Total harga yang dibutuhkan untuk produksi nanopartikel emas dalam setahun adalah USD 8.573.006,05, dengan penjualan tahunan USD 13.200.000, sehingga total biaya adalah USD 4.626.993,95 USD per tahun. Dalam kondisi ideal, analisis PBP menunjukkan bahwa proyek akan menguntungkan pada tahun ke-3, dan analisis PI menunjukkan bahwa biaya modal awal dapat diperoleh kembali dari tahun ke-3. Analisis terhadap beberapa kondisi tidak ideal menunjukkan bahwa kerugian proyek dapat terjadi. Berdasarkan evaluasi ekonomi, proyek ini dapat dilakukan dengan mengantisipasi kerugian yang akan terjadi akibat perubahan beberapa kondisi ideal.
RANCANGAN CONTINUOUS STIRRED TANK REACTOR UNTUK SINTESIS NANOPARTIKEL WO3 Maya Lianawati; Asep Bayu Dani Nandiyanto; Meli Fiandini; Risti Ragadhita
JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Vol 5 No 1 (2023):  Jurnal Pendidikan, Pendidikan Kimia, dan Ilmu Kimia
Publisher : LEMBAGA PENELITIAN DAN PENGABDIAN MASYARAKAT (LPPM) UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/jedchem.v5i1.2793

Abstract

This research aim to develop a continuous stirred tank reactor (CSTR) in the meant to produce WO3 nanoparticles. A manual calculations was done using Microsoft Excel. The result obtained CSTR with a tank designed with volume 1301.14 m3 volume, height 1.26 m, and 1.19 designed hydrostatic pressure. The reactor also equipped with 1 stirrer with length 0.23 m and width 0.18 m. This study expected to be useful reference for production of WO3 nanoparticles in industrial scale.
Techno-Economic Analysis of the Production of Magnesium Oxide Nanoparticles Using Sol-Gel Method Anisa Noorlela; Asep Bayu Dani Nandiyanto; Risti Ragadhita; Meli Fiandini; Tedi Kurniawan
Journal of Mechanical Engineering, Science, and Innovation Vol 3, No 1 (2023): (April)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2023.v3i1.3870

Abstract

The purpose of this research is to determine the feasibility of a project in producing magnesium oxide (MgO) nanoparticles using the sol-gel method and to evaluate it from a technical and economic point of view. The sol-gel method is a method that is often used by industry because the process is simpler. Assessment from a specialized point of see is done by calculating the stoichiometry, whereas assessment from a financial viewpoint is decided by a few parameters, such as deciding Gross Profit Margin (GPM), predicting Payback Period (PBP), predicting Cumulative Net Present Value (CNPV), etc. The results of the technical analysis appear that the overall fetched of the gear to create 1,875 kg of MgO nanoparticles per day is 45,373 USD. Payback Period analysis appears that the venture pays off after more than three a long time. This venture is able to compete with PBP capital advertise measures since the venture will return in a brief time. Based on the economic evaluation, it can be concluded that this project is very promising if it is anticipated that losses will occur due to changes in several ideal conditions. The result of this study about are anticipated to be a reference for building more economical, efficient and high-demand MgO nanoparticle production projects.
How to Purify and Experiment with Dye Adsorption using Carbon: Step-by-Step Procedure from Carbon Conversion from Agricultural Biomass to Concentration Measurement Using UV Vis Spectroscopy Asep Bayu Dani Nandiyanto; Meli Fiandini; Risti Ragadhita; Muhammad Aziz
Indonesian Journal of Science and Technology Vol 8, No 3 (2023): (ONLINE FIRST) IJOST: December 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i3.58290

Abstract

This paper contains guidelines and provides a basic understanding of how to do experiments in dye adsorption using carbon. This paper presents a step-by-step experimental procedure from carbon preparation (as biochar) from agricultural waste to concentration measurement using UV-Vis Spectroscopy. We used agricultural waste as a model due to its high cellulose and organic content, making it easily converted into carbon. This paper can be used as a guide for researchers and students in the fabrication of carbon from agricultural waste biomass easily and inexpensively for its application as an adsorbent in the batch adsorption process. This paper also supports the current issues in Sustainable Development Goals (SDGs).
Cost Analysis and Economic Evaluation for The Fabrication Activated Carbon Nanomaterials from Durian Seeds Utilizing Ionic Liquids Andika Purnama Shidiq; Asep Bayu Dani Nandiyanto; Risti Ragadhita; Meli Fiandini
Open Global Scientific Journal Vol. 2 No. 1 (2023): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v2i1.17

Abstract

Waste Agricultural Biomass (WAB) is a challenging problem in this modern era. The purpose of this study was to evaluate the economic feasibility of manufacturing carbon nanomaterials from durian waste biomass using ionic liquids. Several economic evaluation parameters are analyzed to inform the production potential of valuable materials from Biomass. The results showed that the production of carbon nanoparticles from biomass is quite prospective. Technical analysis for converting 250 kg of waste durian seeds shows the total cost of the equipment purchased was USD 12,086. Adding the Lang Factor, the total investment cost should be less than USD 53,661. This value is relatively economical (ie the project requires less investment funds) to reduce 75 tons per year or 100 tons per 20 project years. Compared to the total amount of degraded durian seed waste, the value is only around 18 USD per ton. Indeed, it is inexpensive to access a problem solver in degrading a ton of durian seed waste. To ensure project feasibility, projects are assessed from ideal to worst conditions in production, including labor, sales, raw materials, utilities, and external conditions (ie, taxes and subsidiaries).
Production of Brake Pad from Epoxy Resin: From Polymerization Concept to the Experiment with Analysis of Mechanical Properties Nandiyanto, Asep Bayu Dani; Fiandini, Meli; Al Husaeni, Dwi Novia; Ragadhita, Risti; Hofifah, Siti Nur
Jurnal Penelitian Enjiniring Vol 25 No 2 (2021)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.112021.05

Abstract

The purpose of this study was to determine the effect of variations in the use of catalysts on the performance of brake pads. The performance testing is compressive strength and puncture strength. The resin is formed from a mixture of Bisphenol A-epichlorohydrin and cycloaliphatic amine. Based on the results of the study, it was found that brake pads with samples B and C had better performance. The hardness values of samples A, B, and C are 307.4; 331.1; and 334.3 N, respectively. The ratio of resin and catalyst mixture affects the performance of the brake pad. The more catalysts added, the faster the hardening process. It is hoped that this research can be the basis for developing brake pads.
Co-Authors Abdulkareem Sh. Mahdi Al-Obaidi Adi Rahmat Al Husaeni, Dwi Fitria Al Husaeni, Dwi Novia Al-Obaidi, Abdulkareem Sh. Mahdi Andika Purnama Shidiq Anisa Noorlela Asep Bayu Dani Nandiyanto Astuti, Asita Puji Dewi, Mauseni Wantika Dian Usdiyana Dwi Novia Al Husaeni Fadhillah, Farid Fauzi, Fajar Miraz Hofifah, Siti Nur Indra Mamad Gandidi Khimmataliev, Dustnazar Omonovich Lepir, Yenika Rambu Mahmudatussa'adah, Ai Maya Lianawati Mentari Putri Aprilia Mrs Yanti Hamdiyati Mubiar Agustin Muhammad Aziz Muhammad Aziz Mukhamedov, Gafurdjan Israilovich Nanang Winarno Ragadhita, Risti Rina Maryanti SAKINAH, PUTRI Santiuly Girsang, Gabriela Chelvina Sri Anggraeni Sukrawan, Yusep Tedi Kurniawan Teguh Kurniawan Thyta Medina Salsabila Erlangga Wafa Raihana Arwa