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Aplikasi Pemasaran Sampah Anorganik Sebagai Bahan Baku Pengolahan Sampah Berkelanjutan Budiman, Marson James; Pongoh, Deitje Sofie; Lambonan, Oldi Malfri
Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) Vol 5, No 4 (2024): Edisi Oktober
Publisher : LPPM STIKOM Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/kesatria.v5i4.514

Abstract

This website-based inorganic waste marketing application has the potential to make a positive contribution to more sustainable waste management, by facilitating more efficient waste collection and sales practices. Apart from that, this application also has the potential to increase environmental awareness among the public. This research aims to design and develop a website-based marketing application for Inorganic Waste using the SDLC (Software Development Life Cycle) Development Method. This application was built as a solution to facilitate more efficient and sustainable waste management. The SDLC method is used as a framework in developing this application, which includes the stages of planning, needs analysis, design, development, testing, implementation and maintenance. The results obtained through system testing using the black box method are that the system can run the home window menu, trash buying feature, trash selling feature, transaction feature, point exchange feature, trash list feature, order feature, offer feature, and report feature. This system is a practical solution for MSME business actors who process inorganic waste.
Utilization of Solar Energy as Electric Energy for Street Light Pongoh, Deitje Sofie; Marasi, Rio; Tuela, Sonia; Tulia, Yisrael; Pangaila, Aditya
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 8 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i8.2800

Abstract

The increasing demand for sustainable street lighting solutions has become critical due to rising energy costs, environmental concerns, and the need for reliable illumination in areas with limited grid access. Conventional street lighting systems rely heavily on fossil fuel-based electricity, contributing to carbon emissions and high operational costs, while many remote areas lack adequate lighting infrastructure due to grid connectivity limitations. Indonesia has rich natural resources and abundant energy resources. This study aims to analyze the effectiveness of solar energy utilization as an alternative electric energy source for street lighting systems. The research methodology employs a qualitative approach combined with experimental analysis, utilizing a 50 WP solar panel module to evaluate electrical fluctuations and energy conversion efficiency. Key findings demonstrate that the solar panel system achieves 20% conversion efficiency under optimal conditions (1000 W/m² solar irradiance), with energy obtained from 6 hours of sunlight capable of operating street lamps for 16 hours at 30 watts total output. The system shows effective energy storage through battery integration, enabling continuous lighting operation during nighttime and cloudy weather conditions. Economic analysis reveals significant long-term cost savings despite higher initial installation costs, while environmental benefits include substantial carbon emission reductions and independence from conventional electricity grids. The research implications indicate that solar-powered street lighting systems represent a viable and sustainable solution for public lighting needs, particularly suitable for remote areas and supporting Indonesia's renewable energy transition goals and carbon emission reduction commitments.
Working Principle of Contactor in Electrical System Pongoh, Deitje Sofie; Prajitno, Muhammad Arif Kurniawan; Kalalo, Mutiara Gissyella; Kraar, Imanuel Rakwer Orlando; Mokalu, Eadvent Supit Jearty
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 9 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i9.2848

Abstract

Contactors are important components in electrical systems that function as electromagnetic switches to control electric current in various places, both in industry and in housing. The working principle of the contactor is based on the electromagnetic field that occurs when the coil gets electricity, so that the contacts can be open or closed control the flow of electricity. So that it can control high currents, so when the contactor is given a voltage or electricity, it will produce an electromagnetic field to attract the main contact so that the voltage or electricity is connected, and vice versa when the voltage for the contactor is removed, the magnetic field will disappear and the main contact will return to its normal position. Contactors are often used in controlling electric motors, lighting systems, and industrial automation. This journal explains the working principle, as well as the main role of contactors in electrical systems. A good understanding of contactors can help in the design and maintenance of electrical installations to make them safer and more efficient in the industrial world.
Use Of 3 Phase Electric Motors In Lifts Or Elevators Pongoh, Deitje Sofie; Malonda, Brian Anugrah Nasana Putra; Karundeng, Daniel Jesilloh Audrey; Poluan, Mario Petro; Tumiwa, Mikhael Meidy Junior
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 10 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i10.2921

Abstract

In the industrial world, induction motors are one of the most widely used types of electric motors to support the production process. Its popularity is due to several advantages, such as simple construction, relatively affordable prices, high efficiency, and minimal maintenance requirements compared to other types of motors. Three-phase induction motors have the characteristic of a fairly large starting current when first turned on. However, this problem can be minimized by various starting methods, such as the use of star-delta circuits, autotransformers, soft starters, and inverters (VFDs). Three-phase induction motors are the most common type of induction motor. Because of their affordable price and high efficiency, 3-phase induction motors are widely used in industry. The disadvantage of three-phase induction motors is that they cannot maintain a constant speed when the load changes rapidly due to their non-linear parameter characteristics.