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RANCANG BANGUN ALARM ANTI PUTUS Khalil, Muhammad; Musthofa, Imron; Artika, Kurnia Dwi; Andriami, Sri Muntiah; Wicaksono, Bayu Agung
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.333

Technology can be used as a preventive measure to avoid theft. One technology that can interfere and even make the perpetrator cancel the robbery is an alarm. With the sound of the alarm, the thief can be surprised and will immediately save himself because he is worried about being caught. Until now, various alarm technologies have been studied, from simple to complex. There are also many sensors used as triggers for alarm activation. This study created a simple anti-break alarm that is not easily turned off using a magnetic switch and relay. Several parameters are measured to determine the performance of the input and output of the alarm such as voltage and current, then a consistency test is carried out from the alarm that was created. The results obtained were that the alarm functioned properly. The alarm can sound when the door is opened then continues to sound and does not break when the door is closed again. The alarm also works consistently after 100 tests.

Characteristics of Peat Water and Coconut Water Molecules in the Electrolysis Process to Produce Hydrogen Gas Imron Musthofa; Reza Taufiqi Ivana; Hajar Isworo; Adhiela Noer Syaief; Rusuminto Syahyuniar; Muhammad Rezki Fitri Putra
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 25 No. 2 (2025): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v25i2.78-84

Hydrogen energy is one of the alternative energies that will help overcome the scarcity of fossil energy. One of the steps to produce hydrogen energy is by the electrolysis method. In this study, the electrolysis process was carried out with a combination of peat water and coconut water. Given that in the South Kalimantan area the existence of peat land is very extensive and there are also many coconut trees. So the main raw materials used can be renewed. In addition, the composition contained in peat water can also help in the electrolysis process which consists of metal minerals such as Na, Mg, Al, Fe, Ca, K, and others. These mineral compounds will also help in accelerating the formation of hydrogen gas. The mineral compounds contained in coconut water and peat indirectly produce electrolyte properties and can be used as catalysts to accelerate the reaction to produce hydrogen gas by the electrolysis method. From the results of the research conducted, as much as 155 ml of hydrogen was produced. Hydrogen gas production, 0.6 A of electric current, and 7.3 Watts of electric power in the 30-minute electrolysis process were found in sample F (1.5 L of pure coconut water). In the electrolysis process, peat water and coconut water, the voltage used during the electrolysis process was 12 V which flowed through the cathode and anode.

Utilization of Corn Cob Waste as an Alternative Catalyst in Catalytic Converters for Diesel Engine Carbon Emission Reduction Muhajir Muhamad; Imron Musthofa; Hajar Isworo; Muhammad Rezki Fitri Putra; Bayu Agung Wicaksono
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 25 No. 3 (2025): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v25i3.140-146

Catalytic converters function to transform harmful exhaust gases into less hazardous substances through catalytic reactions, primarily oxidation and reduction. This study aims to investigate the potential of corncob waste as an alternative catalytic material in catalytic converters for reducing carbon emissions from diesel engines. The methodology involves synthesizing biochar-based catalysts derived from corncobs via pyrolysis, followed by performance evaluation within a catalytic converter system under varying engine speeds: 700 RPM, 900 RPM, and 1100 RPM. Experimental results demonstrate that catalytic efficiency does not increase monotonically with char content; instead, the 70% char formulation achieved the highest smoke opacity reduction, recording 18.90% at 700 RPM and 14.70% at 900 RPM, outperforming both the 50% and 100% variants at 1100 RPM, where exhaust temperature and flow rate increase substantially, the 100% char catalyst showed comparatively greater stability, achieving a reduction of 5.50%, while the 70% formulation declined to 2.90%. These quantitative outcomes confirm that optimal performance arises from a balanced char loading that maximizes reactive surface area while preserving gas–solid interaction efficiency. Corncob biochar thus represents a viable and sustainable alternative to metal-based catalysts. However, the variability in performance across operating conditions and the need for improved thermal durability underscore the importance of further material optimization for commercial diesel applications.

Model Formulasi dan Pengendalian Mutu Berkelanjutan Food Grade Grease Berbasis Sumber Daya Agroindustri untuk Mendukung Keamanan dan Kehalalan Produk Pangan Nina Hairiyah; Nuryati; Raden Rizki Amalia; Fatimah; Imron Musthofa
JURNAL AGROINDUSTRI HALAL Vol. 12 No. 1 (2026): Jurnal Agroindustri Halal
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jah.v12i1.24111

Food safety and halal assurance of food products are influenced not only by the primary food ingredients but also by processing aids, one of which is food grade grease used in food processing equipment. Dependence on imported products and the lack of integration between formulation and process-based quality control highlight the need for the development of a sustainable scientific model based on local agroindustry resources. This study aims to develop a sustainable formulation and quality control model for agroindustry-based food grade grease to support food safety and halal assurance. The study employed a fundamental research approach, with food grade grease as a case study for model development. The research stages included the identification of Critical Quality Characteristics (CQC), selection and physicochemical characterization of agroindustry-based materials, formulation design using Design of Experiment (DOE), and the application of Statistical Quality Control (SQC) to analyze process stability and capability. The results indicate that the developed formulation model successfully identified quantitative relationships between material composition and critical quality parameters, with product quality consistency maintained within statistical control limits. The implementation of SQC demonstrated that the formulation process was stable, with process capability indices (Cp and Cpk) greater than 1.33 for key quality parameters. The integration of formulation and quality control models produced a conceptual framework capable of mapping critical quality points, process variability, and sustainability indicators, including resource-use efficiency and potential agroindustrial waste reduction. The proposed model is expected to serve as a scientific reference for the development and quality supervision of food processing aids that support food safety, halal assurance, and sustainable agroindustry principles.

Design and Development Of an Iot-Based Water Quality Monitoring System In The Palm Oil Industry At PT. PKIS Nina Hairiyah; Alya Rahmaida; Risna Dwi Latifah; Imron Musthofa; Jihan Pradesi; Fina Pradika Putri
Jurnal Teknologi Agro-Industri Vol. 12 No. 2 (2025): Jurnal Teknologi Agro-Industri
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Negeri Tanah Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/jtai.v12i2.228

The availability of clean water is a vital element in the operational processes of palm oil mills, serving both processing and domestic needs. PT. PKIS operates a Water Treatment Plant (WTP) to treat raw water from reservoirs into clean water that meets quality standards. However, the existing manual monitoring system for water quality poses a risk of delays in detecting fluctuations in critical parameters such as pH and turbidity. This study aims to design and implement an Internet of Things (IoT)-based water quality monitoring system capable of real-time monitoring of pH and turbidity parameters. The system design was conducted over five months within the industrial environment of PT. PKIS, utilizing pH and turbidity sensors integrated with an ESP32 microcontroller and the Blynk application platform for data visualization. The testing results indicate that the pH sensor demonstrates a satisfactory accuracy level with a margin of error of 2,20%, while the turbidity sensor exhibits suboptimal performance with a margin of error of 1,30%. The implementation of this system is expected to enhance the effectiveness of water quality monitoring, expedite decision-making processes, and ensure that the treated water meets the established standards, thereby supporting the sustainability of palm oil industry operations.

Design and Development Of an Iot-Based Water Quality Monitoring System In The Palm Oil Industry At PT. PKIS Nina Hairiyah; Alya Rahmaida; Risna Dwi Latifah; Imron Musthofa; Jihan Pradesi; Fina Pradika Putri
Jurnal Teknologi Agro-Industri Vol. 12 No. 2 (2025): Jurnal Teknologi Agro-Industri
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Negeri Tanah Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/jtai.v12i2.228

The availability of clean water is a vital element in the operational processes of palm oil mills, serving both processing and domestic needs. PT. PKIS operates a Water Treatment Plant (WTP) to treat raw water from reservoirs into clean water that meets quality standards. However, the existing manual monitoring system for water quality poses a risk of delays in detecting fluctuations in critical parameters such as pH and turbidity. This study aims to design and implement an Internet of Things (IoT)-based water quality monitoring system capable of real-time monitoring of pH and turbidity parameters. The system design was conducted over five months within the industrial environment of PT. PKIS, utilizing pH and turbidity sensors integrated with an ESP32 microcontroller and the Blynk application platform for data visualization. The testing results indicate that the pH sensor demonstrates a satisfactory accuracy level with a margin of error of 2,20%, while the turbidity sensor exhibits suboptimal performance with a margin of error of 1,30%. The implementation of this system is expected to enhance the effectiveness of water quality monitoring, expedite decision-making processes, and ensure that the treated water meets the established standards, thereby supporting the sustainability of palm oil industry operations.

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