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All Journal Voteteknika (Vocational Teknik Elektronika dan Informatika) Jurnal Teknik ITS Jurnal Sains dan Seni ITS IPTEK The Journal of Engineering IPTEK Journal of Science IPTEK Journal of Proceedings Series Elsains : Jurnal Elektro Applied Technology and Computing Science Journal Journal of Applied Electrical Engineering JAREE (Journal on Advanced Research in Electrical Engineering) Jurnal Teknik Informatika (JUTIF) Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Sewagati
Lucky Putri Rahayu
Institut Teknologi Sepuluh Nopember
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

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The Characteristic of Variable Frequency Drive for Water Flow Control in the SFC Plant Sefi Novendra Patrialova; Destiarga Husein Wardhana; Lucky Putri Rahayu; Tedy Agasta
IPTEK The Journal of Engineering Vol 7, No 1 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i1.a8415

Abstract

One of several techniques to control fluid flow-rate through a pump is using variable frequency drive.  This paper presents how experiment be able to perceive the characteristic of variable frequency drive (VFD) to control water flow-rate in the Simulator Flow Control (SFC) plant. The SFC plant is developed for a fluid course learning simulator. The user would be able to set the desired value of frequency or flow-rate through a convenient interface. To provide it, the characteristic of VFD-frequency-to-flow-rate must be firstly observed, as reported in this paper. The fluid flow-rate control is designed without an electric valve, but using VFD to drive the 250 Watt water pump. In this first development, the SFC Plant successfully work with various water flow-rate from 2 Liter per minute until 20 Liter per minute by changing the frequency input of VFD. The water flow-rate was measured by manual rotameter, the flow sensor has not been applied yet in this first development. In this experiment, the VFD’s frequency was set from 10 Hz to 36 Hz with 2 Hz intervals. Result showed that VFD frequency is proportional to water flow-rate. The higher frequency given to VFD, the faster rotational motor of water pump generated and then given rise to water flow-rate. Using linear graphic approach, the characteristic is shown through the linearity coefficient of 0,68 and constant value of 3.43. This characteristic value would be useful for open-loop-control and user interface programming in next step of development.
Fabrication of TiO2 Nanoparticles Slab Waveguide by Spin-coating Method with 2-Propanol Solvent Lucky Putri Rahayu; Yono Hadi Pramono; Asnawi Asnawi; Gatut Yudoyono
IPTEK Journal of Science Vol 2, No 1 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.586 KB) | DOI: 10.12962/j23378530.v2i1.a2252

Abstract

The slab waveguide TiO2 nanoparticles by spin-coating method was fabricated with solvent 2-propanol. Component of TiO2 phase anatase is obtained using the old method of coprecipitation with time stirring 5 h. The Slab waveguide fabrication process using the spin-coating method with a rotation speed of 3000 rpm for 60 s and thermally treated at 100 0C for 15 min. Heating temperature used should be higher than the boiling point of the solvent (2-propanol) is 82.2 0C. This research was intended to determine the thickness of the film of the waveguides that have been fabricated and examination absorbance and transmittance. From the test results of absorbance and transmittance using UV-Vis known that the highest absorption (262 nm) and average transmittance (91%). The thickness of the film obtained 131.6 μm
Disturbance Observer Design for Controlling the Speed of Three Phase Induction Motor Josaphat Pramudijanto; Fauzi Imadudin Adhim; Lucky Putri Rahayu; Muhamad Zulfiqar Rusretin
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 2, No 1 (2018): April
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v2.i1.42

Abstract

Induction Motor is a type of motor that is most widely used in industry compared to other electrical motors,  because this type of motor has several advantages such as construction simplicity, sturdiness, cheap prices and low maintenance need. But the main challenge is to keep the speed remain constant when the induction motor is given many various values of load until particular value of the load nominal is given, so the response of the motor will change varily even if a controller has been given, thus controlling the speed of three phase induction motor is much more difficult to do. Therefore, in this research, we applied Disturbance Observer (DOB) method using Proportional Integral Derivative (PID) controller. This method was chosen because it can automatically reduce or even eliminate the disturbance, which is in the form of load and the measurement noise. The use of PID controller was expected to enhance the motor’s time settling. The test result of the Disturbance Observer method shows that it can reduce the measurement noise in every loading scenario. While the simulation result shows that the response of PID controller + DOB are capable of approaching the nominal load response with a response specification of 0.1 % of plant error, overshoot or undershoot of 1.5 %, time settling (ts) 5 % by 7.1 seconds and time rises (tr) of 2.2 seconds. Keywords: Disturbance Observer, Proportional Integral Derivative, Induction Motor
Development of Employee Payroll System using Rational Unified Process (RUP) on Odoo Platform Fauzi Imaduddin Adhim; Raisya Fiany Martin; Slamet Budiprayitno; Lucky Putri Rahayu
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 1 (2022): June
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i1.3696

Abstract

Payroll process mostly done manually in Indonesian companies. Manual process takes longer time than automated process. In this research, an employee payroll system was developed on the Odoo platform by implementing the Rational Unified Process (RUP) method. There are four phases in this method, the inception phase includes business process modeling activities both ongoing business processes (as-is) and proposed business processes (to-be). Then from the business process needs analysis is carried out. The elaboration phase includes system design activities using use case diagrams, activity diagrams, configuration, use case scenarios, and salary rules. The construction phase includes implementation activities based on the system design in the previous phase. The results of the implementation will then be evaluated at the testing stage. In the final phase, namely the transition, the deployment or installation process is carried out to the user. The results obtained after testing the system by comparing salary calculations on Microsoft Excel and Odoo show that the total salaries of employees received are similar. The time needed to calculate an employee in Microsoft Excel is 15 minutes, while in Odoo the time needed is 6 minutes faster. In the User Acceptance Testing (UAT) test, the respondents involved were a limited circle of various departments at a sample company totaled 11 people by giving 12 statements from 3 UAT test criteria and obtained a final score of 86.97%. From the final score, the respondents accepted the developed system well.
Analisis Pengaruh Bayangan Sebagian Terhadap Karakteristik Daya Listrik pada PV Array Luqi Abidin; Ciptian Weried Priananda; Khafit Imron Muzaki; Fauzi Imaduddin Adhim; Lucky Putri Rahayu; Arif Musthofa
Journal of Applied Electrical Engineering Vol. 6 No. 2 (2022): JAEE, December 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v6i2.4086

Abstract

Fenomena Photovoltaic Array (PV Array) tertutup bayangan sebagian sangat berpotensi terjadi pada Pembangkit Listrik Tenaga Surya (PLTS). Fenomena tersebut dapat menyebabkan penurunan perolehan daya listrik pada PLTS. Penurunan daya listrik ini dipengaruhi oleh seberapa besar bayangan yang timbul pada area PV Array. Pada penelitian ini dilakukan pengujian melalui pendekatan simulasi (software) dan eksperimental (hardware) untuk mengetahui efek tertutup bayangan sebagian terhadap penurunan daya listrik keluaran PV Array. Penelitian ini melakukan pengujian secara praktis pada PV Array yang tersusun dari 25 modul PV 3-watt peak. PV Array ini memiliki konfigurasi 5 string dengan daya total 75-watt peak. Pada proses pengujian, digunakan beberapa skema tertutup bayangan sebagian dengan nilai persentase dan bentuk yang bervariasi. Pengujian dilakukan dengan mengambil data arus dan tegangan pada catu daya keluaran PV Array. Selanjutnya daya PV Array dihitung dengan mengalikan nilai arus dan tegangan. Perhitungan ini kemudian disajikan dalam bentuk kurva karakteristik P-V (Daya-Tegangan). Berdasarkan hasil pengujian, masing-masing skema tertutup bayangan sebagian memberikan dampak yang berbeda terhadap penurunan nilai daya listrik serta bentuk kurva karakteristik P-V yang dihasilkan selama proses pengujian. Pada kurva karakteristik P-V, ditemukan adanya sejumlah titik puncak daya (maksimum power point) dengan beragam variasi nilai puncak.
Kontrol Ketinggian Air dalam Tangki menggunakan Logika Fuzzy Fauzi Imaduddin Adhim; Achmad Jalaluddin Muchdlor; Lucky Putri Rahayu
Voteteknika (Vocational Teknik Elektronika dan Informatika) Vol 11, No 1 (2023): Vol. 11, No 1, Maret 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/voteteknika.v11i1.120298

Abstract

Mekanisme penyimpanan material hasil tambang di industri minyak dan gas memiliki banyak tantangan. Penyimpanan material berbentuk cairan umumnya memanfaatkan media tangki. Adakalanya tangki utama (daily tank) untuk menyimpan cairan dari proses kilang harus ditransfer menggunakan pompa ke tangki penyimpanan (storage tank) jika tangki utama telah penuh. Hal ini dimaksudkan untuk tetap menjalankan proses penambangan, meskipun tangki utama telah penuh. Storage tank perlu diawasi agar proses pengisiannya dapat dihentikan jika penuh. Proses pengawasan ketinggian air dalam tangki, umumnya juga dilakukan secara langsung oleh operator. Tujuan dari penelitian ini adalah untuk mendapatkan metode yang lebih baik untuk mengontrol ketinggian air pada tangki. Penelitian ini menggunakan metode Logika Fuzzy untuk mengontrol pompa pada prototipe sistem pengisian storage tank dari daily tank. Ketinggian air dalam tangki akan dikontrol melalui kecepatan pompa untuk disesuaikan dengan set point yang mengindikasikan bahwa tangki telah penuh. Ketinggian air di dalam tangki juga dimonitor secara wireless dari aplikasi android. Berdasarkan hasil pengujian yang dilakukan, implementasi metode Logika Fuzzy untuk kontrol ketinggian air pada tangki memiliki nilai akhir lebih dekat dengan set point dibandingkan dengan metode ON-OFF. Nilai maksimum overshoot pada metode ON-OFF didapatkan sebesar 5.3%, sedangkan pada metode logika fuzzy didapatkan sebesar 2.28%. Nilai rise time dari implementasi logika fuzzy (39 detik) dapat diterima meskipun lebih lama dibandingkan dengan metode ON-OFF (27 detik). Dari hasil penelitian ini, dapat disimpulkan bahwa metode Fuzzy layak dipertimbangkan sebagai metode kontrol ketinggian air pada tangkiKata kunci: Logika Fuzzy, Kontrol Ketinggian Air, Tangki Air, Pompa Transfer The mechanism for storing mining materials in the oil and gas industry has many challenges. Material storage in the form of liquid generally utilizes tank media. Sometimes the main tank (daily tank) to store liquids from the refinery must be transferred to the storage tank (storage tank) when the main tank is full. This is intended to keep the mining process running, even though the main tank is full. Storage tanks need to be monitored so that the filling process can be stopped if they are full. The process of monitoring the water level in the tank, is generally also carried out directly by the operator. The purpose of this study is to find the better method to control water level. This study uses the Fuzzy Logic method to control the pump on a prototype storage tank filling system from the daily tank. The water level in the tank will be controlled through the pump speed to match the set point which indicates that the tank is full. The water level in the tank is also monitored wirelessly from the android application. Based on the results of the tests carried out, the implementation of the fuzzy logic method for controlling the water level in the tank has a final value closer to the set point compared to the ON-OFF method. The maximum value of overshoot in the ON-OFF method is 5.3%, while the fuzzy logic method is 2.28%. The rise time value of the implementation of fuzzy logic (39 seconds) is acceptable even though it is longer than the ON-OFF method (27 seconds). From that result, it can be concluded that Fuzzy can be considered as the new method for water tank level control.Keywords: Fuzzy Logic, Water Level Control, Water Tank, Transfer Pump
Model Kemitraan Perguruan Tinggi dan Desa untuk Meningkatkan Kemampuan Start-Up Produk Susu Sapi Desa Pesanggrahan, Kecamatan Batu, Kota Batu, Jawa Timur Melania Suweni Muntini; Agnes Tuti Rumiati; Janti Gunawan; Lucky Putri Rahayu; Iim Fatimah; Faridawati
Sewagati Vol 7 No 5 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i5.574

Abstract

Desa Pesanggrahan terletak di Kecamatan Batu, Kota Batu, Jawa Timur. Susu sapi yang dihasilkan lebih dari dua juta liter per tahun dan menjadikannya desa dengan produksi susu tertinggi di Kota Batu. Pada tahun 2015, produksi susu Kota Batu mencapai 22.430.928 L, terdiri atas susu kambing 33.620 L, dan susu sapi mencapai 22.397.655 L. Dalam pengolahan hasil susunya, masyarakat Batu lebih banyak menggantungkan diri dengan Industri Pengolah Susu (IPS), yaitu 90%, dengan harga yang terbilang rendah untuk ukuran susu kualitas super, dan hanya sekitar 10% yang dijual sendiri oleh KUD Kota Batu untuk konsumsi masyarakat sekitar. Penelitian yang dilakukan ini sekaligus juga sebagai partisipasi perguruan tinggi dalam menaikkan metrik Sustainable Development Goals (SDGs), utamanya pada capaian ke delapan tentang Decent work and economic growth. Dalam kegiatan ini terdapat partisipasi masyarakat untuk memastikan pertumbuhan ekonomi dan partisipasi yang produktif masyarakat Desa Pesanggrahan, Kecamatan Batu, Kota Batu, Jawa Timur. Fokus utama pada pengabdian ini adalah melakukan kegiatan pelatihan tentang produk olahan susu sapi dan mengenalkan proses bisnis berbasis IT. Inovasi dalam melakukan kemitraan ini diharapkan dapat menghidupkan bisnis produk olahan susu sapi Desa Pesanggrahan, Kota Batu dan meningkatkan partisipasi pemuda yang tidak bekerja di daerah tersebut dalam mengolah produk susu beserta menjalankan bisnisnya sendiri dengan memanfaatkan teknologi agar dapat meningkatkan produktivitasnya.
Digitalisasi Komoditas dan Hasil Olahan Kopi Desa Pesanggarahan, Kecamatan Batu, Kota Batu, Jawa Timur Rahayu, Lucky Putri; Muntini, Melania Suweni; Indarto, Bachtera; Arifin, Zainal; Widianto, Muhammad Yusuf Hakim; Al Kindhi, Berlian; Priambodo, Joko; Adhim, Fauzi Imaduddin
Sewagati Vol 8 No 4 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i4.1088

Abstract

Sejak 2015 hingga saat ini luas lahan pertanian kopi di Kota Batu bertambah, dimana pada tahun 2015 seluas 109 ha, tahun 2016 luas lahan menjadi 140,1 ha dan 2017 hingga 2018 seluas 150,9 ha. Sehingga, komoditi kopi saat ini memiliki nilai ekonomi tinggi dan berpeluang sangat besar dalam pemasaran. Dalam konteks ini, salah satu desa yang berpotensi dalam pengembangan produksi kopi ini adalah Desa Pesanggrahan. Dalam hal ini, pengabdian masyarakat dilakukan untuk mengembangkan aplikasi pemasaran berbasis website dan Android, yang ditujukan khusus untuk memasarkan produk kopi dan olahan berbahan dasar kopi. Aplikasi ini dirancang untuk memudahkan proses transaksi antara penjual dan pembeli dengan mengintegrasikan kegiatan promosi dan transaksi dalam satu platform yang dapat diakses oleh pengguna dengan tingkat akses yang berbeda. Tujuan utama dari aplikasi ini adalah untuk mempercepat proses transaksi serta memperluas jangkauan pemasaran produk kopi dan turunannya. Selain itu, aplikasi ini juga bertujuan untuk memperkenalkan produk-produk berbahan dasar kopi kepada masyarakat luas serta mengenalkan daerah-daerah penghasil kopi di Jawa Timur. Aplikasi ini telah dibuat dan dimanfaatkan oleh masyarakat Desa Pesanggrahan.
Fuzzy implementation for temperature control on coffee roaster machine Adhim, Fauzi Imaduddin; Akbar, Ilham Syahrial; Istiqomah, Fivitria; Priananda, Ciptian Weried; Rahayu, Lucky Putri; Musthofa, Arif
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 3, No 1 (2024): June
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27213560.v3i1.14042

Abstract

A roaster machine is a machine that is used for the process of determining the quality of the coffee it gets. The roaster machine at Puslitkoka still uses a manual process so that the Post Harvest operator always maintains the roasting process when researching to get quality coffee beans. The roaster machine at Puslitkoka is still maintained by the operator to stabilize the temperature of 140oC - 200oC with a time of 10 to 15 minutes to get the desired coffee beans. As a result of some of the problems above, it is necessary to develop a roaster machine. By adding a thermocouple sensor to measure the temperature that can move the servo valve to stabilize the gas output during the roasting process using the fuzzy logic method. When it reaches a temperature of 140oC the servo motor opens as input for coffee beans. All data obtained will be managed by Arduino Mega 2560. With the creation of this tool, it was found that the temperature control on the coffee roaster using the fuzzy method has a more minor average steady-state error of 5.85%. The conventional method has a larger error than fuzzy logic because the temperature increase is linear with time. For the required roasting time, the fuzzy method has a shorter time with an average of 549.67 seconds than the conventional method with an average time of 811.34 seconds.
Green Coal Machine: Innovative Solution for Processing Organic Soil Enhancer from Compost and Coal Testing Waste Rahayu, Lucky Putri; Yuliana, Vita; Budiono, M. Buang; Riznaldhy, Afrian; Kurniarina, Riris
Journal of Applied Electrical Engineering Vol 7 No 2 (2023): JAEE, December 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v7i2.6775

Abstract

The Eco Green Campus Program adopted by Sepuluh Nopember Institute of Technology (ITS) aims to create a campus that is sustainable and environmentally friendly with a focus on cultivating healthy organic soil. However, tillage Organic soil require organic materials which are quite expensive and difficult to obtain, such as organic fertilizer. Therefore, innovative solutions are needed through utilization of abundant local resources such as remaining coal samples with compost that called Green Coal which was made into quality organic soil enhancer. Coal has very complete nutrients and can be used as fertilizer. In addition, the use of coal as fertilizer can reduce the potential for degradation of the quality of agricultural land. In order to meet the needs in ITS parks, coal from the rest of the laboratory testing samples can also be used as a source of soil fertilizer. However, the results of the production is still lacking by number so sometimes the compost is applied though its still half ripe. To increase its effectiveness, organic compost waste is used as a soil conditioner through the use of coal. ITS has succeeded in developing a soil enhancer product named Green Coal from residual coal sample. However, the process of making Green Coal is done manually and is constrained by time constraints. Therefore, in this research, a 3-in-1 Green Coal machine was carried out to increase the efficiency of Green Coal production. The 3-in-1 Green Coal machine consists of a chopping machine, a sieving machine and a mixing machine in one machine so it can simplify processes, cost and time efficiency in the production process. The results of this research showed that a 3-in-1 Green Coal machine can produce 10 kg/minute of Green Coal soil enhancer products.
Co-Authors Achmad Jalaluddin Muchdlor Adhim, Fauzi Imaduddin Adhim, Fauzi Imaduddin Adhim, Fauzi Imaduddin Agnes Tuti Rumiati Ahmad Rifky Perdana Akbar, Ilham Syahrial Al Kindhi, Berlian Alawiyyah, Mujtahidatul Andi Subagyo Putra Andriawan, Alan Asnawi Asnawi Aulia Alfiana Yufrida Bachtera Indarto, Bachtera Bagus Saputro, Triono Boerhanudin Mohammad Budiono, M. Buang Cantona, Singgih Chandra Permana Ciptian Weried Priananda Destiarga Husein Wardhana Faridawati Faridawati Fatimah, Iim Fatimah, Iim Fauzi Imadudin Adhim Gatut Yudoyono Haidar, Abdu Aswar Imam Wahyudi Farid Iqbal Sholehudin Ghofur Istiqomah, Fivitria Janti Gunawan Jauhari, Moh. Joko susila Josaphat Pramudijanto Khafit Imron Muzaki Khoiri, Mohamad Kurnianto, Mahfud Kurniarina, Riris Latif, Muhammad Nasrudin Lila Yuwana Luqi Abidin Mahira, Balqis Melania Suweni Muntini Muhamad Zulfiqar Rusretin Musthofa, Arif Musthofa, Arif Muthmainnah, Melania Suweni Muntini Patrialova, Sefi Novendra Priambodo, Joko Priananda, Ciptian Weried Rahman Aliffianto, Lutfir Raisya Fiany Martin Riznaldhy, Afrian Sefi Novendra Patrialova Slamet Budiprayitno Suluch, Munarus Susilo Indrawati Suweni Muntini, Melania Suyatno Suyatno Syahbana, Dwiky Fajri Tedy Agasta Tutik Nurhidayati Vita Yuliana, Vita Waskito, Lugas Jabar Widianto, Muhammad Yusuf Hakim Yono Hadi Pramono Zainal Arifin