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Journal : nucleus journal

Rancang Bangun Alat Sistem Pembuangan Asap Rokok Pada Smoking Room Menggunakan Sensor MQ 2 Berbasis IoT Affan Bachri; Moh Ezra Syirojudin
Nucleus Journal Vol. 1 No. 1 (2022): May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v1i1.1102

Abstract

Indonesia faces a serious threat, the prevalence of male smokers in Indonesia is the highest in the world, it is estimated that more than 97 million Indonesians are exposed to cigarette smoke. Many ways have been done to reduce the negative impact of cigarette smoke. One of them is the provision of a smoking room. In this study, a tool is made which is a prototype of a special smoking room. This room uses a fan in the form of exhaust in and exhaust out. The design made as a simulation of the room is a box made of 2 mm acrylic which has a size of 23x18x18 cm, in the box there are 2 12 V fans, there is an MQ2 sensor at the top to detect cigarette smoke, then at the bottom left is the ionizer and the top is 1 Watt LED lamp in warm white color. Then for the control box using 2 mm acrylic with a size of 11.5x9x9 cm, at the top there is a 16x2 LCD which is used to display the sensor output results, at the bottom of the LCD there is a power button then an indicator light and a toogle switch which is used to turn on the 1 watt LED light in the simulation box.. Introduction
Optimalisasi Auto Dosing Cement Additive Berbasis PLC-SCADA dengan Kendali Closed-Loop pada Finish Mill Affan Bachri; Moch Syafi Uddin; Eko Wahyu Santoso; Abd Kadir Mahamad
Nucleus Journal Vol. 5 No. 1 (2026): May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v5i1.5110

Abstract

PLC is a programmable logic control system that uses a microprocessor as the main controller and is widely applied in industrial automation processes such as monitoring and controlling production machinery. The system is equipped with input and output devices that interact with external components such as buttons, sensors, actuators, and other hardware devices. This technology has been implemented in various fields, including cement production processes. In this study, the programmable logic controller was used to modify the auto dosing system for cement additive with the aim of improving dosing accuracy, enabling real-time monitoring, and developing an auto dosing system capable of adapting to changes in feed material. The previous system operated manually and relied heavily on operator intervention, resulting in inconsistent dosing performance. To overcome these limitations, a programmable logic controller-based control system integrated with a supervisory control and data acquisition system was implemented. The system applied a closed-loop control method to regulate the dosing process in order to achieve stable and consistent output. System performance was evaluated by comparing the accuracy and stability of the flow rate before and after modification. The analysis results showed that the proposed system reduced the error between the setpoint and the actual flowmeter reading from 16% to 3%, decreased flow fluctuations, and improved process stability. In addition, the system enabled centralized monitoring and reduced operator dependency, thereby improving operational efficiency.