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3rd International Conference on Emerging Electrical Energy, Electronics and Computing Technologies 2021, ICE4CT 2021

作者： Anggraini, Lydia Hendriawan, Rivaldo Agung Anggraina, Putri Laila Hakiki, Rijal Study Program of Mechanical Engineering President University Jl. Ki Hajar Dewantara Jababeka Education Park Cikarang Bekasi17550 Indonesia Study Program of Environmental Engineering President University Jl. Ki Hajar Dewantara Jababeka Education Park Cikarang Bekasi17550 Indonesia

In the agricultural countries, rice husk is an abundant waste, especially as one of the largest sources of silica (SiO2) production that can be produced. By complete combustion, to about 87% - 97% SiO2 content can be produced from rice husks. Alkaline solution is used as a solvent in the solid-liquid extraction process of rice husk ash. The mass of 10 grams of rice husk ash was weighed for the extraction process added with 80 ml of potassium hydroxide (KOH) solution with 10%, 15% and 20% various concentration for 60 minutes to extract the SiO2 content. The solution was added with 1 N hydrochloric acid (HCl) solution to precipitate the SiO2, after the extraction process was complete. The SiO2 formed is then separated from the rest of the solution by filtration. Next step is the drying process which aims to remove the moisture content of the resulting SiO2. In a systematic study, for 60 minutes the rice husks were soaked and washed using HCl and then heated in a muffle furnace. The results of this study showed that all samples are succeeded in homogenizing SiO2 with a purity close to 90%. Furthermore, through X-Ray Fluorescence (XRF) analysis was proven these results obtained through solid-liquid extraction of KOH from rice husks. Green SiO2, known as biosilica, is useful and has potential in reinforcing compounds, including applications as filler in tires and natural rubber compounds. © Published under licence by IOP Publishing Ltd.

关键词： Silica

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The effect of fiber volume fraction on tensile and impact properties of eleusine indica grass reinforced polypropylene bio composite 1

The effect of fiber volume fraction on tensile and impact pr...

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1st International Conference on Design, Energy, Materials and Manufacture, ICDEMM 2018

作者： Lokantara, I.P. Suardana, N.P.G. Surata, I.W. Winaya, I.N.S. Doctoral Study Program of Engineering Science Faculty of Engineering Udayana University Kampus Sudirman Denpasar-Bali Indonesia Mechanical Engineering Department Udayana University Street of Bukit Jimbaran Bali Badung Indonesia

The purpose of this research was to investigate the tensile strength and impact strength of eleusine indica grass fiber-reinforced polypropylene recycle composite. In this study, the fiber was treated with alkali at 5% NaOH for 2 hours. The eleusine indica grass fiber cut with a length of 3 cm and the matrix used recycle polypropylene. In this research, the volume fraction of eleusine indica grass fiber varied by 20%, 25%, and 30% respectively. The composite molded with a hot press at temperature 200°C with a holding time for 2 hours. Tensile test used ASTM D3039 and impact test used ASTM D256. The highest tensile and impact strength results on fiber volume fraction 30%. © Published under licence by IOP Publishing Ltd.

关键词： Polypropylenes

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Comparative analysis combustion chamber cleaners use carbon cleaner on performance engine type 16 3SZ-VE IL,-4 cylinder valve, DOHC,VVT-i, 1500cc Daihatsu Astra cars 2

Comparative analysis combustion chamber cleaners use carbon ...

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2nd International Conference on Computer, Science, engineering, and Technology, ICComSET 2019

作者： Rosyidin, A. Effendi, Y. Efrizal Amir Mechanical Engineering Study Program University of Muhammadiyah Tangerang Jl. Perintis Kemerdekaaqn I No.33 Cikokol Kota Tangerang Banten15118 Indonesia

Car transportation tools are widely used in Indonesia. The car is experiencing rapid technological development, including a family car made by Daihatsu astra with 1500 Cc. Engine Type 16 3SZ-VE IL,-4 Cylinder Valve, DOHC,VVT-I) (Toyota New Avanza type Veloz, Toyota New Avanza type G, Toyota Rush and Daihatsu Terios, production is much loved by the public 2012-2015, because it is loaded with many people affordable prices but has sophisticated technology so it is comfortable when driving. affordable prices but has sophisticated technology so it is comfortable when driving. As you use, the longer the car will experience a decrease in performance, this is caused by the engine combustion chamber experiencing crust, which results from incomplete combustion and poor fuel quality then care needs to be taken so that the car remains in top shape, Toyota's official workshop has a new innovation that is the engine combustion chamber cleaner using Camber Cleaner. Toyota's official workshop has a new innovation that is the engine combustion chamber cleaner using Camber Cleaner. The performance of the car will be excellent after the engine combustion chamber is cleaned using Camber Cleaner, The performance of the car will be excellent after the engine combustion chamber is cleaned using Camber Cleaner, many effects such as better acceleration, more efficient fuel, the combustion chamber will remain clean so that the combustion results released into the air will be less harmful material contentmany effects such as better acceleration, more efficient fuel, the combustion chamber will remain clean so that the combustion results released into the air will be less harmful material content. This also helps reduce air pollution caused by the large number of motorized vehicles. © 2020 Published under licence by IOP Publishing Ltd.

关键词： Combustion chambers

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Performance of 500 liter stainless steel portable biogas anaerobic digester with agitator designed for the tropical developing country 11th

Performance of 500 liter stainless steel portable biogas ana...

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11th International Conference on Materials and Manufacturing Technology, ICMMT 2020

作者： Sebayuana, Kadek Nindhia, Tjokorda Gde Tirta Surata, I. Wayan Nindhia, Tjokorda Sari Shukla, Shailendra Kumar Khanal, Samir Kumar Master student at Ma ster Study Program of Mechanical Engineering Engineering Faculty Udayana University Jimbaran Bali80361 Indonesia Study Program of Mechanical Engineering Engineering faculty Udayana University Jimbaran Bali80361 Indonesia Faculty of Veterinary medicine Udayana University Denpasar Bali802232 Indonesia Departmen of Mechanical Engineering IIT Banaras Hindu University Varanasi221005 India Dept. of Molecular Biosciences and Bioengineering University of Hawaii at Manoa HonoluluHI96822 United States

ISBN: (纸本)9783035737226

This document it is established that 2 types of biogas anaerobic digester that usually found in developing country. First type is fixed dome type of anaerobic digester and secondly is floating drum biogas anaerobic digester. Both of this type have draw back that the anaerobic process is not completed with agitation process that yield low rate of biogas production. Other serious problem is the release of slurry cannot optimal. Some of the slurry will still remain stay in the anaerobic digester especially scum. To drain and cleaning the fixed dome or floating drum biogas anaerobic digester is mandatory to be done regularly that consume time and cost. The fixed dome types as well as floating drum type are usually not portable which cause no possibility to relocate in the new site. It is the purpose of this work to introduce portable biogas anaerobic digester that suitable for developing country with volume of digester around 500 liter of slurry. The requirement of agitator is facilitated, and the anaerobic digester is possible to be operated in batch system or continuous system. The material that is used for anaerobic digester is stainless steel 304 with tungsten inert gas welding technology that is used for the manufacturing. With this design the anaerobic digester are easy to be maintenance. The batch system can keep producing biogas until 52 day with total production of biogas around 3320 liters. The continuous system was conducted by releasing for about 5 liters slurry from the outlet and after that filled with new slurry with stirring with agitator was conducted for about 10 minutes for 3 times in a day (morning, noon, and evening). The result for continuous system is a linear biogas production with rate biogas production is around 51.7 liter/day (1550 liter/30days). © 2021 Trans Tech Publications Ltd, Switzerland.

关键词： Biogas

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Dynamic Stability of a Sieve Shaker Used in a Pachouli Oil Refining Process 3rd

Dynamic Stability of a Sieve Shaker Used in a Pachouli Oil R...

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3rd International Conference on Experimental and Computational Mechanics in engineering, ICECME 2021

作者： Kurniawan, Rudi Fuadi, Zahrul Abubakar, Fathurrahman Afdhal, Afdhal Department of Mechanical and Industrial Engineering Universitas Syiah Kuala Banda Aceh Indonesia Undergraduate Study Program Department of Mechanical Engineering Universitas Syiah Kuala Banda Aceh Indonesia Department of Electrical and Computer Engineering Universitas Syiah Kuala Banda Aceh Indonesia

ISBN: (纸本)9789811936289

One of the problems causing low quality of essential oils is the high content of solvent resulting from traditional extraction process employing low purity metallic components. This extracted oil therefore requires further process to improve the patchouli alcohol content of the oil by removing unwanted components. One of the process is by mixing the oil with bentonite and zeolite. In this study, a sieve shaker is designed to be used at an integrated equipment for patchouli oil refining process. In order to have a dynamically stable shaker, it is necessary to investigate the effect of various components for the stability, particularly the spring stiffness. The simulation was conducted using Autodesk Inventor using a one degree of freedom model. It is shown from the result that, for the defined condition, the sieve shaker shown a stable condition for the spring stiffness value at least 10 kN/m. Spring stiffness lower than the value could cause detachment of the roll follower from the cam, resulting in impact between the components. © 2023, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Stiffness

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Managing laundry wastewater 1

Managing laundry wastewater

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1st International Conference on Smart City Innovation, ICSCI 2018

作者： Watiniasih, N.L. Purnama, I.G.H. Padmanabha, G. Merdana, I.M. Antara, I.N.G. Study Program of Biological Sciences Faculty of Mathematics and Natural Sciences Udayana University Indonesia Laboratory of Integrated Material Engineering and Environmental Technology Udayana University Indonesia Study Program of Public Health Faculty of Medicine Udayana University Indonesia Faculty of Veterinary Science Udayana University Indonesia Mechanical Engineering Study Program Faculty of Engineering Udayana University Jl. Raya Kampus UNUD Kampus Bukit Jimbaran Bali Jimbaran80361 Indonesia

Laundry services are emerging in every corner of Bali, particularly at suburban area, from cities to villages. These services help the community to ease their burden. However, the burden for the environment is increase. The wastewater from the laundries should be controlled, which should be handled natural ways. One way of reducing the dangerous chemical from the laundry wastewater can be done by Vertical-Sub-surface Flow Constructed Wetland system, using volcanic rocks as substrate of plant grow and the plant as filters. This study aimed to investigate the effectiveness of volcanic rock and Canna plants as a filter for the laundry wastewater. The volcanic rock as substrate for the plant grows was place in layers in a drum and the laundry wastewater was flowed. The parameter of wastewater laundry, such as TDS, BOD, COD and total phosphate were measured before and after treatment. The treatment was run for 6 weeks. The result shows that this system is effective that overall can reduce the parameter measured for 53.86%. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Volcanic rocks

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Enhancing Agricultural Efficiency and Sustainability Through Smart Direct Couple Motor Operated Valve: A Technological Innovation for Automated Irrigation and Fertilization

SSRN

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SSRN 2024年

作者： Nugraha, Muhamad Hanhan Hanhan Rabbika, Anes Inda Rusdja, Andy Permana Bustomi, Ahmad Mechanical Engineering Study Program Mechanical Engineering Department State Polytechnic of Jakarta Depok16425 Indonesia Manufacturing Engineering Technology Study Program Mechanical Engineering Department State Polytechnic of Jakarta Depok16425 Indonesia Mechanical Engineering Study Program Faculty of Engineering Mayasari Bakti University Tasikmalaya46196 Indonesia

This research introduces the Smart Direct Couple Motor Operated Valve (SDCMOV), designed to enhance agricultural efficiency and sustainability. SDCMOV automates the distribution of water and fertilizers in vegetable farming, reducing labor intensity and inefficiencies. The system addresses key issues such as minimizing musculoskeletal disorders (MSDs) among farmers and ensuring consistent nutrient delivery for optimal plant growth. Energy-efficient, environmentally friendly, and remotely controllable via mobile devices, SDCMOV significantly improves irrigation and fertilization processes. Experimental results suggest that SDCMOV is a viable solution for sustainable and modern agricultural practices, particularly in developing countries. © 2024, The Authors. All rights reserved.

关键词： Irrigation

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Measurement analysis of the level of household preparedness for facing landslide in Bogor regency 2

Measurement analysis of the level of household preparedness ...

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2nd International Conference on Disaster and Management 2020, ICDM 2020

作者： Saputra, P.D. Rahmawati, C. Purnomo, K.S.H. Larosa, E. Nurhasanah Military Building Construction Engineering Study Program Faculty of Military Engineering Indonesia Defense University Bogor Indonesia Industrial Engineering Department Faculty of Industrial Technology Universitas Dirgantara Marsekal Suryadarma Jakarta Indonesia Master of Management Program Universitas Teknologi Yogyakarta Yogyakarta Indonesia Mechanical Engineering Education Faculty of Teacher Training and Education Universitas Negeri Yogyakarta Yogyakarta Indonesia Civil Engineering Study Program School of Engineering and Technology Tanri Abeng University Jakarta Indonesia

There are so many areas in Indonesia that are prone to landslides. Bogor is the regency with the most frequent landslides. Therefore, high community preparedness is needed to deal with the landslide, especially at the household level because it is the spearhead of preparedness and influence disaster risk. The objective of this research is to measure and analyze the level of household preparedness for facing landslide. The location of this research is in Cibadak Village, Bogor regency where a landslide disaster had happened. This is a quantitative research. The number of the samples were 100 household. Data collection was done by surveying samples and distributing questionnaires. The data would be analyzed with descriptive analysis, and the results of level of household preparedness would be categorized to five levels which were very prepared (80-100), prepared (65-79), almost prepared (55-64), less prepared (40-54), and not prepared (0-39). The results of the research are the average index value of Knowledge and Attitude (KA) parameter is 66.77, Emergency Planning (EP) parameter is 52.24, Warning System (WS) parameter is 64.80, Resources Mobilization Capacity (RMC) parameter is 51.25 and the level of household preparedness for facing landslide is 59.26 or and it is significant at the almost prepared level. © Published under licence by IOP Publishing Ltd.

关键词： Landslides

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MODELING OF MAGNETORHEOLOGICAL DAMPER USING MULTIPLE ARTIFICIAL NEURAL NETWORKS FOR FUZZY CONTROL DESIGN OF A SEMI-ACTIVE SUSPENSION SYSTEM

UPB Scientific Bulletin, Series C: Electrical Engineering an...

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UPB Scientific Bulletin, Series C: Electrical engineering and Computer Science 2024年第3期86卷 315-334页

作者： Sitompul, Erwin Anggraini, Lydia Turnip, Arjon Study Program of Electrical Engineering President University Cikarang Indonesia Study Program of Mechanical Engineering President University Cikarang Indonesia Department of Electrical Engineering Padjajaran University Bandung Indonesia

Suspension is a very important part of the functionality of a car. It supports the comfort of the passengers and can be used to improve the car's stability. If a magnetorheological (MR) damper is used, the damping performance can be adjusted according to the road condition. In this research, an attempt to model an MR damper using multiple artificial neural networks (ANNs) was conducted. The measurement data was obtained by using a damper dynamometer. Eight measurements were conducted to cover the coil current range between 0 and 1,400 mA. The MR damper model was then integrated into the semi-active suspension of a quarter-car model. Furthermore, the fuzzy logic controller (FLC) design for the semi-active suspension system was conducted. This artificial intelligence control deployed a novel approach in using the frequency content of the road surface as the input. The control scheme was tested by giving a sinusoidal bumpy road and a pseudo-random bumpy road as the input to the quarter-car model. The FLC performed well and was able to reduce the transmitted excitation from the road to the car chassis. © 2024, Politechnica University of Bucharest. All rights reserved.

关键词： Active suspension systems

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Real- Time Quality Monitoring and Prediction System for Logistics 4.0 of Mango Agroindustry 14

Real- Time Quality Monitoring and Prediction System for Logi...

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14th International Conference on Advanced Computer Science and Information Systems, ICACSIS 2022

作者： Kailaku, Sari Intan Djatna, Taufik Hakim, Muslih Arfiana, Afifah Nur Arkeman, Yandra Purwanto, Y Aris Udin, Faqih IPB University Indonesian National Research and Innovation Agency Agroindustrial Engineering Study Program Bogor Indonesia IPB University Faculty of Agricultural Technology Agroindustrial Technology Department Bogor Indonesia Agroindustrial Engineering Study Program Graduate School IPB University Bogor Indonesia IPB University Faculty of Agricultural Technology Mechanical and Biosystem Engineering Department Bogor Indonesia

ISBN: (数字)9781665489362

ISBN: (纸本)9781665489362

The challenge of distributing climacteric fruit is quality assurance due to the long-distance and perishability nature of the fruit. While monitoring transportation conditions is common, little research has developed a prediction model of fruit quality affected by transportation conditions. The presented study designs a quality monitoring system for mango's long-distance supply chain by integrating the Internet of Things (IoT) and machine learning. The system modeling utilizes Business Process Model and Notation and a Use Case Diagram based on requirement analysis. The design of IoT architecture addresses the needs of the supply chain actors to monitor the transportation process and predict the final quality of mango upon arrival. Artificial Neural Network (ANN) predicts mango grade classification upon arrival. The dataset consists of initial (harvest) maturity level and transportation conditions as predictor variables and mango final grade as the target variable. The accuracy of the prediction model reaches more than 95%. The verification and validation of the system with traceability technique on the user's requirements confirm the fulfillment of each requirement's input, tasks, and output. This conceptual design presents IoT and machine learning as promising solutions to quality assurance problems in the global fresh produce supply chain. © 2022 IEEE.

关键词： Supply chains

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