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Trainer Kit for Velocimetry Thermodynamics Lab Dice Throwing Muhammad Prihadi Eko Wahyudi; Natalia Parhusip; Fauzun Atabiq; Qoriatul Fitriyah
JURNAL INTEGRASI Vol 15 No 1 (2023): Jurnal Integrasi - April 2023
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v15i1.5258

Abstract

The Trainer Kit is one of the tools that supports the learning process of the Thermodynamics Lab Course. The objects ejection tool design is created with a 3D printed catapult movement system. The main components of the objects Ejection Speed ​​Trainer Kit are: Use the ultrasonic sensor HC-SR04 as a guide for the desired firing distance, a stopwatch as a measure of time spent throwing objects using the TTP223's capacitive touch as a start and stop clock. Load cell as a measure of the weight of the objects. Meter reading results are displayed on a 20x4 LCD with an i2c module and calculation of velocity values ​​using Visual Basic 6.0. Results of a load cell experiment measuring 6 different materials weighing between 5 and 63 g with an average measurement error of 1.2%. As result of ultrasonic examination measured in increments of 3 to 100 cm, the measurement error is 0% at the maximum distance of 70 cm, and the error is 1.1% at 70 cm or more. The result of the timer experiment using TTP223 in 15 tests has an arithmetic error of 0.37%.
Designing an IoT-based footstep counter for sports shoes Vikra Aditya; Dirja Nur Ilham; Fauzun Atabiq; Dina Miftahul Jannah; Muhammad Khoiruddin Harahap
JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development Vol. 1 No. 1 (2023): JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Dev
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jataed.v1i1.2

Abstract

Shoes are general footwear that can be used when exercising, working, formal events, or just to sweeten your appearance. Shoes used for sports have a slightly different shape from shoes in general, in terms of covering the left and right sides, the base, and the design, but most shoes do not have a device to count the steps taken. To overcome this, researchers have created a tool in shoes that can count the user's footsteps while exercising. A step counter on shoes based on the internet of things uses NodeMCU and an IR sensor which functions to detect every step of the shoe wearer. The result of the detected step count will be displayed in the blynk application. NodeMCU and IR sensors will be connected to the Blynk application using the internet network. When the step counter on the shoe and the hotspot are turned on, the results of the foot count will appear on the Blynk application on the smartphone. Footstep data detected by the IR sensor corresponds to the number of steps counted manually. The test results from a 150-meter step counter, obtained results of 207 steps in 3 minutes when walking casually, 223 steps in 1 minute 30 seconds when walking fast, and 264 steps when running in a period of 1 minute 15 seconds.
Uji Kinerja Membrane Sea Water Reverse Osmosis Sebelum Dan Sesudah Pemeliharaan Di PLTGU Tanjung Uncang Hasnira, Hasnira; Olfhie Stevani; Muhammad Syafei Gozali; Didi Istardi; Arif Febriansyah Juwito; Fauzun Atabiq; Fitriyanti Nakul
Journal of Applied Electrical Engineering Vol. 9 No. 1 (2025): JAEE, June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v9i1.9462

Abstract

Sea Water Reverse Osmosis (SWRO) di PLTGU Tanjung Uncang berfungsi untuk menyuplai air baku melalui permurnian air laut menggunakan membrane. Dalam operasinya, membrane sering mengalami fouling dan scaling yang menurunkan kinerja sistem. Penelitian ini bertujuan mengevaluasi kinerja membrane SWRO sebelum dan sesudah proses pembersihan menggunakan metode Cleanig in Place (CIP) dan pembersihan manual (pembongkaran). Evaluasi dilakukan berdasarkan data conductivity dan differential pressure dalam tiga kondisi: sebelum Cleanig in Place (CIP), sesudah Cleanig in Place (CIP), dan setelah pembersihan manual. Hasil menunjukkan bahwa Cleanig in Place (CIP) efektif mengurangi fouling ringan, namun tidak cukup untuk fouling berat seperti lumpur. Sebaliknya, pembersihan manual lebih efektif dalam mengembalikan performa membrane ke batas normal (differential pressure ≤ 1,5 bar dan conductivity ≤ 600 µS/cm), meskipun membutuhkan waktu lebih lama. Dengan mengombinasikan kedua metode ini, efisiensi operasional SWRO dapat ditingkatkan secara signifikan.