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All Journal Rekayasa Mesin JTERA (Jurnal Teknologi Rekayasa) Journal of Robotics and Control (JRC) Recent in Engineering Science and Technology
Handaya, Devi
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Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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SISTEM KONTROL PENGISIAN BATERAI PADA PENERANGAN JALAN UMUM BERBASIS SOLAR CELL Akhinov, Ihsan Auditia; Handaya, Devi
JTERA (Jurnal Teknologi Rekayasa) Vol 4, No 1: June 2019
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (967.863 KB) | DOI: 10.31544/jtera.v4.i1.2019.93-98

Abstract

Penggunaan solar cell sebagai sumber tenaga listrik untuk Penerangan Jalan Umum (PJU) sudah banyak digunakan. Solar cell menerima energi matahari yang penyinarannya tidak konstan. Hal ini menjadikan energi matahari yang disimpan ke dalam baterai dalam bentuk energi listrik akan mempengaruhi kualitas baterai dan lampu pada PJU. Untuk tetap bisa memanfaatkan energi matahari yang efisien, diperlukanlah sebuah sistem kontrol yang akan mengatur tegangan dan arus menuju baterai dan lampu Light Emmiting Diode (LED). Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem kontrol pengisian baterai pada PJU berbasis solar cell. Perancangan sistem kontrol PJU otomatis ini berbasis analog menggunakan DC boost converter XL6009E1. Dengan perancangan sistem kontrol, solar cell mampu memberikan efisiensi daya sampai 78% dan efisiensi penggunaan lampu sampai 94%. Dengan demikian, diharapkan masyarakat tetap dapat beraktivitas di malam hari tanpa perlu dibebani biaya listrik dan sistem otomatis dapat mempermudah penggunaan PJU di jalan umum.
Proportional-Integral-Derivative and Linear Quadratic Regulator Control of Direct Current Motor Position using Multi-Turn Based on LabView Handaya, Devi; Fauziah, Resti
Journal of Robotics and Control (JRC) Vol 2, No 4 (2021): July (Forthcoming Issue)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study accommodates the industry needs in monitoring a control system on a DC motor using LabView. The servomotor, which is usually used for position control, was replaced in this study with a DC motor coupled with a multi-turn potentiometer sensor. The use of DC motors was carried out to reduce actuator prices while maintaining control objectives. The control method used is in the form of Proportional – Integral - Derivative (PID) and optimal control which are then compared with the output. PID tuning is done using the Root Locus method. Meanwhile, for optimal control using the Linear Quadratic Regulation (LQR) approach. Testing was done by looking at the results of direct implementation of the DC motor plant hardware through observations using LabView. By using the right zero variables in the PID control, the best performance is obtained until it can track references. Too large a zero value will result in even greater Steady State Error. The results of optimal control using different Q variables did not provide a significant change. The SSE value shows the same result. The results show that the optimal control can track the reference with lower settling time and overshoot than the PID control. However, the two control methods still produce relatively small Steady State Error.
Estimasi Jumlah Penghuni Ruangan Berdasarkan Konsentrasi CO2 Dengan Metode Bayesian MCMC Rahman, Haolia; Handaya, Devi; Budianto, Teguh
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.14

Abstract

The number of occupants in the building is important information for building management because it is related to security issues, evacuation, and energy saving. This article focuses on estimating the number of occupants using the Bayesian Monte Carlo Markov chain (MCMC) method based on indoor CO2 levels. Probability theory underlies the Bayesian MCMC principle, where the mass balance equation of indoor CO2 is used as a physical model of estimation calculations. Determination of the variables in the mass balance equation is investigated to obtain the effect on the accuracy of the estimated number of occupants. It found that the higher the standard deviation of the input variable on the physical model, the higher the error estimation produced. In addition, the Bayesian MCMC algorithm is tested in a real-time scheme of test-chamber. The result shows an estimated error of 39%. Rapid changes influence estimation errors in actual occupants relative to the sample interval and the time delay of the estimation.
Design and Construction of Magnetic Support Construction Separator on Track V 33 BC-5 at Greenzone 2 Mulyana, Fajar; Haqqi, Akmal Nafsa Ulya; Handaya, Devi
Recent in Engineering Science and Technology Vol. 3 No. 01 (2025): RiESTech Volume 03 No. 01 Years 2025
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v3i01.85

Abstract

The process of shredding and sorting waste in the Pre Processing method is one of PT Solusi Bangun Indonesia's contributions in overcoming waste and pollution problems. The waste will be shredded into certain sizes and put into the cement kiln. The processing place is called a green zone. In this process, sometimes the material transport contains impurities in the form of metal and the like. This distribution has the potential to cause foreign material to be carried because there is no sorting of waste content. Belt conveyors and dynamic disc screens are often damaged by the metal material. This problem can be overcome with a magnetic separator to separate foreign metals from waste that is channeled using a belt conveyor. The magnetic separator provides protection for the dynamic disc screen and conveyor operating process from foreign material so that the potential for wear on the dynamic disc screen and torn belt conveyor can be avoided. The installation of the magnetic separator position uses a construction based on the optimal position. This study discusses the design and construction of the green zone belt conveyor magnetic separator installation. The construction installation for the magnetic separator aims to facilitate access to maintenance and cleaning, also provide access to dispose of foreign materials and protect the material transport system in the green zone. Before redesign magnetic sparator, the company spent Rp. 389,000,000 maintenance cost from November 2023 to February2024 period.  After redesign, it’s can reducing maintenance and repair costs during the period March 2024 to July 2024 with no maintenance related to metal separation.
Co-Authors Akhinov, Ihsan Auditia Fajar Mulyana Haqqi, Akmal Nafsa Ulya Rahman, Haolia Resti Fauziah, Resti teguh budianto