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All Journal Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Alfrie M. Rampengan
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Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Immunology & microbiology Mathematics

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Comparative Analysis Of Solar Panel Output Power Using Reflected Light And Direct Sunlight Byancha Priscilla; Alfrie M. Rampengan; Arik S. Nugroho
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 4 (2023): Desember : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v1i4.1380

Abstract

This study pertains to the utilization of solar energy as a sustainable energy source, which exhibits considerable promise in Indonesia. The average daily solar radiation intensity in Indonesia is estimated to be approximately 4.8 kWh/m2. Nevertheless, the practical implementation of the Solar Power Plant (PLTS) presents several problems, including the need to improve the output power efficiency of the solar panels. This aspect offers the potential for significant enhancement. This study aimed to evaluate the performance of solar modules when equipped with reflectors, through a comparative analysis. In order to enhance the output power of the solar module, it is vital to augment the solar radiation received by this module. Based on the data acquired, it can be observed that the utilization of reflectors within the time frame of 11.00-12.00 WIT yields the maximum efficiency value.
Pengaruh Suhu Proses Karbonasi Terhadap Konduktivitas Listrik Arang Bambu Sebagai Elektroda Superkapasitor Messy Shania Pongajow; Heinrich Taunaumang; Farly R. Tumimomor; Alfrie M. Rampengan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v2i1.1880

Abstract

. Electrical energy is a primary need for every human being. Supercapacitors are sophisticated electrical energy storage devices that combine the advantages of conventional batteries and capacitors so that they have the ability to store energy better. The use of electrode materials is one of the factors that affect the effectiveness of supercapacitors, electrode materials can be made from polymeric materials, metal oxides, and porous materials such as activated carbon. Activated carbon is made through two main stages, namely the carbonization and activation stages. Bamboo charcoal is a solid product that uses bamboo raw materials through a carbonization process under high temperatures (high temperature charcoal). This research is a research using experimental method. From the research results, carbonized bamboo charcoal at temperatures of 300˚C, 350˚C, 400˚C, 450˚C and 500˚C has a higher electrical conductivity value as the carbonization temperature increases. So it can be concluded that the temperature in the carbonization process affects the electrical conductivity of bamboo charcoal.
Thematic Eksplorative Democratic Learning: Suatu Eksplorasi Konsep Energi di Pulau Para Kabupaten Kepulauan Sangihe Fabian Tamara; Patricia M. Silangen; Alfrie M. Rampengan; Jeane V. Tumangkeng
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 2 No. 4 (2024): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v2i4.74

Abstract

This research aims to describe the results of exploratory learning about objects in the form of energy concepts on Para Island. The main research activities are exploring objects (Sun, ocean currents, sea waves, and wind), as well as scientific concepts and processes using the Thematic Exploration Learning in Democratic Interaction (HOTL-DI) type A model. Research at Tatoereng State Middle School Classes VII-VIII from June to July 2021. Exploration activities were carried out in three stages. The first stage is material exploration (objects, concepts, and scientific processes), carried out by the research team facilitated by the Pamong Teacher. The second stage is learning activities regarding energy concepts by class VII-VIII students. The results of the phase II assessment are used as a reference for going directly to the field to conduct exploration. Phase III exploration activities for target groups facilitated by mentors and researchers. The research results showed that at the beginning of the activity, all students experienced difficulties, but later, they developed the initiative to carry out their exploration. The exploration results show the development of the concept in the exploration step. Most students experienced improvement in identifying concepts and constructing a comprehensive network of energy concepts.
Co-Authors Arik S. Nugroho Byancha Priscilla Fabian Tamara Farly R. Tumimomor Heinrich Taunaumang Jeane V. Tumangkeng Messy Shania Pongajow Patricia M. Silangen