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All Journal JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Jurnal Surya Energy
Christin Erniati Panjaitan
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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Android-based Rooftop Solar Power Plant Capacity Calculator Application Development Olnes Yosefa Hutajulu; Muhammad Dominique Mendoza; Denny Haryanto Sinaga; Christin Erniati Panjaitan
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 6 No. 2 (2023): Issues January 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v6i2.8343

Abstract

The utilization of solar energy to produce electrical energy in the form of a rooftop solar power generation system (PLTS) is an option to anticipate fossil energy scarcity and reduce pollution. The Indonesian government also urges the public to participate in using PLTS. However, until now there are only 4000 users throughout Indonesia. The main problem with the small number of PV mini-grid users is the difficulty of obtaining information related to the material requirements and costs for building a PV mini-grid system. Therefore, this research then proposes the creation of an application that can provide convenience for the community to calculate the capacity requirements of PLTS and its costs according to the electrical equipment that is operated as needed. This article contains the process of designing, manufacturing and testing an application for calculating the capacity and cost of a PV mini-grid. The design sprint method used in this research is in the design and manufacturing process. While the application testing uses the black box and usability testing. The final result of the testing process shows that with the black box testing method by 3 experts, it is known that all functions of the application are 100% "Valid" which is already functioning according to the design. Meanwhile, the results of usability testing with 30 respondents resulted in a usability level of 82.83. Based on the standard usability scale system, the usability testing results obtained are included in the "Very Useful" predicate and are ready to be used by the community.
Prototype Selimut Penghangat Elektrik dengan Sistem Monitoring Berbasis NodeMCU ESP8266 Farsya Alfitri Nasution; Christin Erniati Panjaitan
Jurnal Surya Energy Vol. 10 No. 2 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i2.929

Abstract

Ketika suhu inti tubuh turun di bawah 36°C – 37°C, keadaan darurat medis yang dikenal sebagai hipotermia terjadi. Ini terjadi ketika kehilangan panas melebihi produksi panas. Penanganan hipotermia sering kali melibatkan penggunaan selimut pemanas yang diinfus dengan uap di berbagai fasilitas kesehatan di Indonesia. Meskipun demikian, instrumen ini dianggap kurang fungsional. Oleh karena itu, tujuan penelitian ini adalah untuk menciptakan selimut pemanas elektrik jenis baru yang dapat membantu staf medis dengan sistem pemantauan yang lebih efektif, aman, dan mudah digunakan. Termokopel dan sensor suhu Ds18b20 memungkinkan sistem ini melacak suhu inti dan selimut secara real-time. Unit pemrosesan pusat sistem, mikrokontroler NodeMCU ESP8266, memproses data suhu yang dikumpulkan. Pengaturan suhu selimut secara otomatis dimungkinkan oleh NodeMCU ini, yang mengatur elemen pemanas kawat nichrome melalui modul relay. Lebih lanjut, sistem ini dilengkapi dengan konektivitas Blynk IoT, memungkinkan data suhu dan status operasional dapat diakses dan dimonitor dari jarak jauh melalui aplikasi pada prangkat smartphone. Kemampuan kontrol jarak jauh ini sangat krusial untuk meningkatkan efisiensi kerja tenaga medis dan mempercepat respon terhadap kondisi pasien. Pengujian fungsional dan performa telah dilakukan pada simulasi pasien dengan rentang suhhu hipotermia ringan hingga sedang (31.2°C – 35.1°C). Hasil eksperimen menunjukkan bahwa selimut penghangat elektrik otomatis ini bekerja dengan baik dan mampu meningkatkan suhu tubuh. Dengan demikian, perangkat ini dapat menjadi solusi alternatif yang lebih praktis, efektif, dan aman dalam manajemen hipotermia, dan memberikan kontribusi signifikan terhadap peningkatan kualitas pelayanan medis.
Co-Authors Denny Haryanto Sinaga Farsya Alfitri Nasution Mendoza, Muhammad Dominique Olnes Y. Hutajulu