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All Journal Journal of Education and Learning (EduLearn) Journal of Energy and Electrical Engineering (JEEE)
Aripin, Haji
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Humanities Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Library & Information Science Social Sciences Other

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STUDI ELEKTROKIMIA BATERAI ALUMINIUM-UDARA DENGAN SILIKA XEROGEL SEBAGAI BAHAN ELEKTRODA Maulana, Iman; Aripin, Haji; Chobir, Abdul
Journal of Energy and Electrical Engineering Vol 1, No 1: Oktober 2019
Publisher : Teknik Elektro Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.574 KB) | DOI: 10.37058/jeee.v1i1.1193

Abstract

Baterai aluminium-udara menggunakan campuran silika xerogel, grafit dan karbon hitam telah dibuat serta karakteristik pengosongan baterai telah diselidiki. Silika xerogel disiapkan tanpa pembakaran dan dengan pembakaran pada 800oC, 1000oC dan 1150oC. Campuran dilarutkan dengan aseton kemudian disemprotkan pada permukaan katoda udara nikel mesh dimensi 6 x 5 cm untuk memperoleh lapisan yang melekat pada nikel mesh. Hasil pengujian menunjukan bahwa kapasitas teoritis dan rapat energi baterai naik berdasarkan kenaikan temperatur pembakaran silika berturut-turut dari 104,52 mAh/g sampai 140,9 mAh/g dan 57,57 mWh/g sampai 65,25 mWh/g. Dengan menggabungkan 4 sel secara seri dapat menyalakan lampu LED selama 20 jam.
Solar-powered electric car: validity and effectivity of prop in energy conversion learning Rizal, Rahmat; Aripin, Haji; Joni, I Made
Journal of Education and Learning (EduLearn) Vol 18, No 3: August 2024
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v18i3.21720

Abstract

The research aimed to describe the development of solar electric cars as a prop in energy conversion learning using the analyze, design, develop, implement, and evaluate (ADDIE) model and to ascertain the effectiveness of an electric car as a prop in energy conversion learning. Utilization of prop in the learning process is one way to support the development of knowledge, skills, and basic needs for delivering material, concepts, and physics information. This research is a descriptive study involving media and pedagogical experts and 40 students of the university in Tasikmalaya. Data collection techniques were carried out through the study of literature, expert validation, and student perception questionnaires. Expert validation and student perception were obtained by using a Likert scale. The expert judgment results were processed using the V value equation developed by Aiken. The results showed a value of 1, meeting the minimum validation requirements. The students also had positive responses to a prop. They have new experience learning in energy conversion and have good media to help their comprehension. It has a significant impact on helping students to achieve their learning goals.
Co-Authors Chobir, Abdul I Made Joni Maulana, Iman