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All Journal GEMA TEKNOLOGI Mechatronics, Electrical Power, and Vehicular Technology Electrices : Jurnal Otomasi Kelistrikan dan Energi Terbarukan Prosiding Seminar Nasional Inovasi Teknologi Terapan
Nofriyani Nofriyani
Politeknik Manufaktur Negeri Bangka Belitung
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Mechanical Engineering

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Uji Termoelektrik Generator Dengan Memanfaatkan Media Lapisan Timah Sebagai Penyerap Panas Matahari Zanu Saputra; Nofriyani Nofriyani; Ocsirendi Ocsirendi; Muhammad Naufal Almahmudy; Sunita Handayani
Electrices Vol 2 No 2 (2020): Volume 2 Nomor 2 Tahun 2020
Publisher : Jurusan Teknik Elektro, Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/ees.v2i2.3590

Abstract

Listrik menjadi sumber energi utama yang paling penting dan dibutuhkan manusia sehingga meningkatkan penggunaan listrik saat ini. Dari peningkatan tersebut, maka harus memanfaatkan sumber energi alternatif dengan memanfaatkan suhu panas sinar matahari. Salah satu teknologi pemanfaatan panas sinar matahari adalah termoelektrik. Tujuan penelitian ini adalah pengujian rancangan pembangkit listrik alternatif menggunakan termoelektrik untuk mengetahui berapa besar tegangan, arus keluaran serta suhu pada bagian heat side dan cold side. Penggunaaan termoelektrik generator ini menggunakan 14 modul peltier dengan tipe TEG-SP1848. Sensor DS18b20 waterproof digunakan agar dapat membaca suhu di kedua sisi perantara TEG sisi panas dan sisi dingin agar lebih aman karena bersifat anti air. Pengujian menggunakan media penyerap panas sinar matahari ditambahkan pasir timah ataupun tanpa ditambahkan pasir timah hasil yang didapatkan antara selisih beda suhu tidak jauh berbeda yaitu rata-rata 0.7ºC. Pengambilan data dilakukan setiap 30 menit sekali dengan hasil tegangan output tertinggi 1 volt dan arus sebesar 1.1mA yang terjadi pukul 13:30 WIB.
Phosphate ion sensor fabrication based on conductive polymer polypyrrole film coatings in doped phosphate using thick film technology Nofriyani Nofriyani; Robeth Viktoria Manurung; Aminuddin Debataraja; Indra Dwisaputra
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 12, No 1 (2021)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2021.v12.45-50

Abstract

This study describes the development of chemical sensors to detect polypyrrole (PPy) based phosphate sensors in doped di-ammonium hydrogen phosphate (DAP) with thick film technology (TFT). Manufacturing screen-printed carbon electrode (SPCE) with thick film uses alumina substrate provided a more portable, miniature, inexpensive, and reduced use of samples and reagents. Polymer polypyrrole and di-ammonium hydrogen phosphate as sensitive membranes are electrodeposition on carbon electrodes. Characterization has been conducted to see the electrode morphology in scanning electron microscopy (SEM) test, which showed that sensitive material particles were distributed evenly on the surface of the sample and spherical. The energy dispersive spectroscopy (EDS) experiment results showed the atomic composition respectively carbon 86.95 %, nitrogen 6.94 %, oxygen 5.9 %, and phosphate 0.21 %, which were exposed to the electrode. The performance test of electrodes with a phosphate standard solution has proceeded at a concentration between 5 to 100 mg/l, which is measured using the galvanostatic method. The voltage range was from 0.252 to 0.957 V with R2 at approximately 90.265 %. The results of sensor performance were concluded that the electrode was able to detect phosphate ions.
SISTEM INVENTARISASI PENGGUNAAN PERALATAN DAN BAHAN PADA MEJA PRAKTIKUM PLC DI POLITEKNIK MANUFAKTUR NEGERI BANGKA BELITUNG MENGGUNAKAN BARCODE SCANNER Nofriyani Nofriyani; Adhi Budiono; Charlotha Charlotha; Indra Dwisaputra; Dedy Ramdhani
Gema Teknologi Vol 21, No 2 (2021): October 2020 - April 2021
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v21i2.31659

Abstract

In the Programmable Logic Controller (PLC) course at Polmanbabel, students use a practicum table containing practicum equipment such as computer units, compressors, PLC units, pneumatic valves, sensors, jumper cables, etc. Before and after practicum, students are required to do an inventory of equipment and materials contained on this practicum desk. The inventory process is still done manually, where students write the name of the equipment, check the presence of the equipment, and calculate the amount. The thing that was complained by lecturers was the confiscation of practicum time as a result of the manual inventory process. Based on this, a new inventory system was created that uses the application and is equipped with a barcode scanner that is able to minimize the time and possibility of misplacement of the device. Based on the results of experiments, it can be seen that this system is able to minimize inventory time by an average of 14.65 minutes compared to manual inventory systems.
SISTEM KONTROL DAN MONITORING ENERGI LAMPU PINTAR MENGGUNAKAN APLIKASI BERBASIS INTERNET OF THINGS Shalilla Farrah Sahita; Muhammad Distya Rizky; Indra Dwisaputra; Nofriyani Nofriyani
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Along with the development of increasingly capable technology, people's daily lives can be helped by the presence of smart devices. The most widely used smart devices are smartphones. In this study, a smartphone is used as a device to control artificial lighting in the form of lamps. If lamps generally use an electric switch to turn on and off, this control system allows smartphones to be used as real-time light on-off control remotely using the Internet of Things (IoT). The control system is programmed using Arduino IDE and using NodeMCU ESP8266 microcontroller. This system can be run using a smart home application that connects users with smart lamps. The application is created using Mit App Inventor and the data is stored in a database that is Firebase. In addition, there is a monitoring system to monitor the use of power, energy, voltage, electric current, and conversion of electricity usage costs in lamps through applications found on smartphones and also Firebase.
Co-Authors Adhi Budiono Aminuddin Debataraja Charlotha Charlotha Dedy Ramdhani Harahap Indra Dwisaputra Muhammad Distya Rizky Muhammad Naufal Almahmudy Ocsirendi, Ocsirendi Robeth Viktoria Manurung Shalilla Farrah Sahita Sunita Handayani Zanu Saputra