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All Journal CHEMICA Jurnal Teknik Kimia Sinergi World Chemical Engineering Journal Jurnal Teknik Mesin Science and Technology Indonesia Jurnal Abdi Masyarakat (JAM) Dinasti International Journal of Management Science Dinasti International Journal of Digital Business Management Jurnal Pengabdian kepada Masyarakat Nusantara Akuntansi dan Humaniora: Jurnal Pengabdian Masyarakat Journal of Scientech Research and Development Journal of Community Service International Journal of Innovation in Mechanical Engineering and Advanced Materials Journal of Artificial Intelligence and Digital Business
I Gusti Ayu Arwati
Universitas Mercu Buana
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Corrosion Analysis on AMS 4050 Aluminum Metal in an Extreme Acid Rain Environment by Weight Loss Method Arwati, I Gusti Ayu; Alva, Sagir; Fadilah, Arif; Maryani, Yeyen
World Chemical Engineering Journal VOLUME 5 NO. 2 DECEMBER 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i2.12613

Abstract

AMS 4050 aluminum metal which is a type of aluminum, with no Zn content, that composed of 5.7 - 6.7%Cu 2 - 2.6%, Mg 1.9 - 2.6%, Zr 0.15%, Si 0.15% and Mn 0.1% others 0.15% each. The advantage of aluminum is that it weighs only 2.7 gr / cm3, corrosion resistant, good electrical and heat transmitter, easy to fabricate or forge. This AMS 4050 material is widely used in the expansion industry to be used as an aircraft frame. MS 4050 aluminum is more resistant to cracking than other types of aluminum, however cracks can still occur due to corrosion due to acid rain. The test method used to calculate the corrosion rate is the weight loss method. The corrosion rate test results obtained with mean values for immersion of 1, 2, 3, and 4 weeks were 0.03, respectively; 0.07; 0.1 and 0.12 mg / cm2 h. EDX test results showed that the aluminum content in AMS 4050 metal decreased by 18.18%.
Analysis of Characteristics of S45C Steel Changes due to the Quenching and Tempering Process Golwa, Gian Villany; Romahadi, Dedik; Arwati, I Gusti Ayu
World Chemical Engineering Journal VOLUME 6 NO. 2 DECEMBER 2022
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v6i2.17611

Abstract

S45C steel has a carbon content of 0.50% and its classified as medium carbon steel. The main element content of S45C is carbon (C) is 0.50%, sulphur (S) is 0.035%, and manganese (Mn) is 0.80%. Tempering is a heat treatment process in which the hardening or normalizing process was previously carried out on steel. The research method was carried out where the steel was heated below the critical temperature and cooled. Quenching is a process of rapidly cooling the material from austenitizing from a temperature range of 815 °C to 870 °C for steel. S45C steel was quenched at 950 °C for 120 minutes, then tempered at 700 °C, and 500 °C for 120 minutes. The raw material sample (without heat treatment) is the initial reference standard among the samples undergoing the heat treatment process. They are then analyzed, and the influence and changes in the characteristics after that. In addition, changes in mechanical properties due to the heat treatment process experienced by S45C steel use tensile tests, Charpy impact tests, hardness tests and microstructures. The research results on the quenching process sample were tempered at a temperature of 500 °C and held for 120 minutes, increasing tensile strength by 17.1% and yield strength of 56.82%.
CATHODIC PROTECTION IN ONSHORE PIPE NETWORKS GAS PAGARDEWA RECEIVING STATION Arwati, I Gusti Ayu; N, Euis; Sirait, Dedi
World Chemical Engineering Journal VOLUME 3 NO. 1 JUNE 2019
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v3i1.5613

Abstract

The use of pipelines is one element that plays an important role as a production chain The pipeline network is used as the main component to distribute gas from the producer to the shipper and then distributed to industrial and household customers. In accordance with the regulations of the Ministry of Mines and Energy No. 300. K / 38 / M.PE / 1997 concerning the Occupational Safety of Petroleum and Gas Pipeline Pipes that the gas and main pipe transmission pipes held on land must be planted with a depth of at least 1 (one) meter above ground level.  However, the placement of steel pipes in the ground can cause pipe material to be threatened by corrosion due to interaction with the environment. This happens in the Pipeline Line of the Gas Pagardewa receiving station. To prevent corrosion from continuing on the pipeline, a precautionary step is needed where one of them is by applying the cathodic protection method. At Pagardewa Gas Receiver Station, which has the role of distributing gas to PLN's power plan in South Sumatra by using a 4875 m pipeline that is embedded in the ground so it needs to be designed for a cathodic protection system to be corrosion resistant. The purpose of this study is to design a cathodic protection system that uses sacrificial anodes so that the analysis can be obtained to be applied in the field.
Effect of Chitosan on the Corrosion Protection of Aluminum in H2SO4 medium Arwati, I Gusti Ayu
World Chemical Engineering Journal VOLUME 2 NO. 1 JUNE 2018
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v2i1.3386

Abstract

Metal aluminium alloy 5052 is a metal that has a lightweight nature of its utilization is very wide. In addition to light also has other advantages such as a good introduction to heat. But the weakness of this material is easily corrosive in the acid environment. To reduce corrosion rate is generally used inorganic inhibitors such as cremate, but these inhibitors are toxic and can contaminate the environment. This study aims to reduce the corrosion rate of aluminium alloys by using non-toxic and environmentally friendly green chitosan inhibitors. The method used for coating on aluminium alloys by coating the metal by electrophoresis deposition (EPD).  For corrosion rate testing using weight loss method in 0.5M H2SO4 environment and surface analysis using scanning electron microscope (SEM). The results showed that for 7 days the immersion of Al5052 alloyed uncoated a corrosion rate of 3.571 x 10 -5g / Cm2 days but, after coated with chitosan inhibitor the corrosion rate decreased by 1.73 10 -5 g / Cm 2 days.
The Time Effect Of Extraction With Natural Dyes Morin Jackfruit Wood Powder By Using Some Variation of Solvent Arwati, I Gusti Ayu; Wedhasari, Tyas
World Chemical Engineering Journal VOLUME 1 NO. 2 JUNE 2016
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i2.811

Abstract

The aim of this study is to obtain a dye source which is can be degraded easily. Themajority of natural dyes extracted from plants is easily degraded dye. Plants that can be used as a coloring agent such as jackfruit wood (Artocorpusheterophyllus) taken from the morin containing a yellow dye. This study aims to find the best extraction time of morin from jackfruit sawdust using some solvent (Ethanol, Hexane and Acetone). The research was carried out in chemical laboratories in PT Sanova. From the research that has been done, found the best extraction time for 2hours with a yield of 8.36% morin.
Aluminum Corrosion Analysis for Environmental Acid Chloride Solution Arwati, I Gusti Ayu; Fina, Fina
World Chemical Engineering Journal VOLUME 1 NO. 5 DECEMBER 2017
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i5.2547

Abstract

Aluminum is the most commonly used metal. Aluminum is present on the bipolar plate which is a key part in PEMFC (Proton Exchange Membrane Fuel Cell). In the air, aluminum is easily oxidized, forming a thin layer (Al2O3). Therefore it's necessary to do an experiment to find out the extent of corrosion on aluminum. In this experiment, corrosion rate analysis on aluminum is arrived at by using hydrochloric acid (HCl) using weight loss and electrochemical methods. And corrosion rate results of aluminum metal with a concentration of 0.1M ; 0.2M; 0.3M; 0.4M and 0.5M with a concentration of 0.5M with a value 0.04250 grams and the smallest corrosion rate of 0.00030 gram with concentration of 0,1M. The largest value of corrosion rate at 0.58610 (mpy) and 0.91589 Ampere using electrochemical method. Morphology on aluminum is seen using SEM (Scanning Electron Microscope is pitting corrosion).
PKM Islamic Boarding School Riyadhussholihiin Rocek Cimanuk – Pandeglang in Waste Processing Machine Applications SETIYAWATI, Hari; ARWATI, I Gustri Ayu; IMANINGSIH, Erna Soriana; ADISTIN, Yulita; ZAKIYAH, Eneng Fitri; NUGROHO, Yusuf Purwo; SARAGIH, Cindy Patricia
Akuntansi dan Humaniora: Jurnal Pengabdian Masyarakat Vol. 3 No. 2 (2024): Akuntansi dan Humaniora: Jurnal Pengabdian Masyarakat (Juni – September 2024)-I
Publisher : Indonesia Strategic Sustainability

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38142/ahjpm.v2i3.869

Abstract

This paper presents a comprehensive study on the design, implementation, and performance evaluation of a Solar-Powered Submersible Water Pump (SPSWP) system tailored for agricultural irrigation in Subak Munduk Babakan, Sangeh, Bali. With a focus on sustainable agriculture and water resource management, the system addresses the challenges of water scarcity during the dry season in the absence of natural irrigation sources. The SPSWP system, consisting of solar panels with pump controller, a submersible pump, and a water tank, harnesses solar energy to power the pump, eliminating the need for extensive infrastructure. The research encompasses site survey and mapping, analysis and design, installation, benefits beyond irrigation, and technical measurements. The implementation shows promising results in overcoming water scarcity issues. The system's advantages include minimal maintenance, cost savings, and enhanced reliability. Additionally, the SPSWP system serves as an educational site for renewable energy study and awareness. Performance metrics, including solar irradiance, voltage, current, solar panel temperature, and water discharge, are measured and discussed. The results indicate fluctuating solar energy availability, with voltage and current aligning with solar panel specifications. The system demonstrates a water discharge rate of 0.56 liters/second, showcasing promising outcomes in addressing water scarcity challenges for agricultural irrigation. Further research and monitoring are required to assess the long-term performance and sustainability of the system.
Community Service at Imam Syafi'i Islamic Boarding School - Panancangan- Cipocok Jaya- Serang City In The Implementation of Waste Processing Machinery & Digitalization of Accounting Setiyawati, Hari; Arwati, I Gusti Ayu; Putra, Yananto Mihadi; Agustin, Andhika Permana; Sidik, Yusuf Samil
Journal of Community Service Vol 7 No 1 (2025): JCS, June 2025
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jcs.v7i1.250

Abstract

The partner in this community service is the Imam Syafi'i Islamic Boarding School which is an Islamic educational institution located on Jl. Dishud / Fire Department, Km. 02, Panancangan Village, Cipocok Jaya District, Regency. Serang, Banten which is involved in the field of formal and non-formal Islamic education. Along with its development, the Imam Syafi'i Islamic boarding school continues to improve facilities for its students. And as students continue to increase, the daily food requirements are certainly quite large. This has an impact on increasing the amount of waste produced from kitchens or from school areas, where it would be very beneficial if this waste was recycled into useful goods or processed into fertilizer that can be used by oneself or sold to the community to increase income. The problems experienced by partners are: a). The partner in this community service is the Imam Syafi'i Islamic Boarding School which is an Islamic educational institution located on Jl. Dishud / Fire Department, Km. 02, Panancangan Village, Cipocok Jaya District, Regency. Serang, Banten which is involved in the field of formal and non-formal Islamic education. Along with its development, the Imam Syafi'i Islamic boarding school continues to improve facilities for its students. And as students continue to increase, the daily food requirements are certainly quite large. This has an impact on increasing the amount of waste produced from kitchens or from school areas, where it would be very beneficial if this waste was recycled into useful goods or processed into fertilizer that can be used by oneself or sold to the community to increase income. The problems experienced by partners are: a) Produce liquid fertilizer, b) Produce recycled products that are ready to use, c) Availability of an accounting application with features for SPP and cottage business units, namely Zahir Accounting. The targeted output is the Sinta Indexed National Scientific Journal/international journal, Articles in the mass media /print/electronic, Activity Videos, Increasing understanding and skills of boarding school administrators, students and ustadz and output of IPR (Creation Rights). Until now, the output that has been achieved is video. PKM activities have been implemented starting August 7 2024. All activities as targeted have been achieved 100%. To ensure the success of the program, evaluation will be carried out at each stage of program development. To support the success of this program, it will continue to be monitored and facilitated so that it can continue to be implemented consistently and developed according to needs.
Effect of Intake Manifold Porting and Polishing and Throttle Body Venturi Diameter Modification on Motorcycle Performance Anbia, Gun Gun; Arwati, I Gusti Ayu
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v13i2.27416

Abstract

This study aims to investigate the effect of intake manifold and throttle body modifications on the performance of a Yamaha Mio M3 125cc motorcycle engine. A two-level factorial experimental design with two factors was employed: intake manifold diameter (27 mm and 30 mm) and throttle body diameter (26 mm and 28 mm). Data were collected using a dyno test and analyzed using statistical methods. The results revealed that intake manifold and throttle body modifications significantly influenced the performance of the Yamaha Mio M3 125cc motorcycle engine. The combination of a 27 mm intake manifold and a 28 mm throttle body produced the highest torque of 23.1 Nm at 2,058 RPM, while the combination of a 27 mm intake manifold and a 26 mm throttle body generated the highest power of 11.2 HP at 7,155 RPM. These modifications resulted in a 10.53% increase in torque and a 16.67% increase in power compared to the standard configuration. Modifying the intake manifold and throttle body can enhance the performance of the Yamaha Mio M3 125cc motorcycle engine. Keywords: Intake manifold modification, Throttle body modification, Engine performance, Yamaha Mio M3 125cc
STRENGTH ANALYSIS OF STEEL ROPE ON FREIGHT ELEVATOR WITH A HOIST LIFTING CAPACITY OF 3 TONS Risdiyan, Asep; Haftirman, Haftirman; Arwati, I Gusti Ayu
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v13i2.19053

Abstract

Steel rope has advantages over chains, but also has disadvantages. The advantage is that it is resistant to shock loads, if it breaks it shows a brittle sign on one of the wires (Houda Mouradi, 2018). The drawbacks are that they are not resistant to corrosion, are difficult to bend, can stretch or elongate, and tend to rotate (Aginaparru, 2018). In this study the analysis carried out was the process for the Salt Spray test to determine the effect of the corrosion rate on steel rope and the tensile test process aimed at determining the phase transformation, plasticity, creep, fatigue, to the fatigue point, as well as metallographic tests for changes in the properties mechanic. Loss or loss of weight on steel rope type 6 x Fi (29), diameter 13 from the salt spray test process, increased the corrosion rate from 0.21 mpy to 0.23 mpy. The greater the tensile force, the greater the tensile stress that occurs. And the greater the tensile force, the greater the elastic modulus that occurs from the elastic limit to the fatigue limit due to the magnitude of the tensile force that exceeds the limit. In metallographic testing using the ASTM 317 / ASTM E 407 method, it can be concluded that the steel rope has a modulus of elasticity, visible crack lines in the steel rope structure indicating that the steel rope has undergone an elastic process to the fatigue limit or fracture limit. Keywords: Salt Spray, wire, creep, fatigue 
Co-Authors Abdul Hadi Zulkafi ADISTIN, Yulita Agustin, Andhika Permana Alfattah, Muhammad ANBIA, GUN GUN Asaeli Tongoni Lase Bambang Darmono Cindy Patricia SARAGIH Dafit Feriyanto Damar, Stenlly Dedik Romahadi Diana Lutfiana Dianta Ginting Edy Herianto Majlan Edy Herianto Majlan, Edy Herianto Ena Rolika Indirwanti Endah Retno Wuryandari, Nur Eneng Fitri ZAKIYAH Erna Sofriana Imaningsih Euis Nina Saparina Yuliani, Euis Nina Saparina Fadilah, Arif Fina, Fina Gian Villany Golwa Haftirman, Haftirman Hari Setiyawati Hendranata, Deni Ibdal Satar Ifani, Febrina IMANINGSIH, Erna Soriana Indiyani Indiyani Izzati, T. KHUZAIMAH Lase, Asaeli Tongoni Mashadi Mashadi Maulana Witanta Muhamad Fitri Muhammad Edi Laksono N, Euis NUGROHO, Yusuf Purwo Nur Endah Retno Wuryandari Pudjiwati, Sri Ratna Mappanyukki Risdiyan, Asep S., Wiwit Sagir Alva Samsul Sianipar Sanusi, Yasa SARAGIH, Cindy Patricia Sidik, Yusuf Samil Sirait, Dedi Syahbana, Fikri Syamsul, Nurato Tarigan, Kontan Titia Izzati Tyas Wedhasari Wahyu Irwansyah Witanta, Maulana Yananto Mihadi Putra Yeyen Maryani Yuliarty, Popi Yulita ADISTIN Yusuf Purwo NUGROHO Z. Arifin ZAKIYAH, Eneng Fitri