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All Journal LONTAR Jurnal Teknik Mesin Undana (LJTMU )
Ben V Tarigan
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Mechanical Engineering

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Desain Alat Pembersih Panel Surya Otomatis Jahirwan Ut Jasron; Yasoni Eliaser Seran; Ben V Tarigan
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 12 No 01 (2025): April 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v12i01.16364

Abstract

Solar energy is one type of energy utilized, especially for solar panels. Solar panels can convert solar energy into electrical energy. Solar panels, as an alternative source of electrical energy, can be utilized by people who need electrical energy. This research aims to determine the output power produced by solar panels that have not been cleaned and have been cleaned using an automatic solar panel cleaning tool from the difference in motor rotation variations, namely 11 rpm, 27 rpm, and 330 rpm. This research shows that the output power of solar panels that have yet to be cleaned on the first day produces a power of 56.3. In contrast, the output power of solar panels that have been cleaned produces a power of 103.1, and on the second day, the output power produced by solar panels that have not been cleaned. Cleaned was 71.3, and the power of solar panels that had been cleaned produced a power of 97.1. Then, on the third day, the power produced by solar panels that had not been cleaned was 65.5, and the power of solar panels that had been cleaned produced power of 78,6.
Pengaruh Pengaruh Variasi Tinggi Cover Collector Distilasi Surya Pasif Terhadap Produktivitas Distilat Daniel Marwill Djoe; Ben V Tarigan; Muhamad Jafri
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 12 No 01 (2025): April 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v12i01.19942

Abstract

Clean water is a vital resource that is increasingly difficult to obtain in many regions of the world, including Indonesia, which faces significant challenges in providing clean water. Passive solar desalination is an efficient alternative method to convert seawater into fresh water by utilizing solar energy. This study aims to analyze the effect of varying cover collector heights on distillate productivity in passive solar desalination, using charcoal as an energy-absorbing material. The varied cover collector heights used were 30 cm, 45 cm, and 55 cm. The results of the study show that the smaller the distance between the seawater surface and the cover collector, the higher the distillate productivity. Basin 1 (30 cm) produced the highest distillate (120 ml), followed by Basin 2 (45 cm) with 94 ml, and Basin 3 (55 cm) with 60 ml. This indicates that a smaller gap between the cover collector and the seawater surface increases the evaporation and condensation rates, contributing to higher distillate productivity.
Sistem Otomasi Pengendali pH Dan Oksigen Untuk Kolam Budidaya Ikan Liberatus Liem; Ishak S. Limbong; Ben V Tarigan; Murni Pallawagau
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 12 No 02 (2025): Oktober 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v12i02.27058

Abstract

In the development of fisheries, especially in tilapia cultivation, promising prospects have emerged with high market demand. However, fish farming still tends to use conventional methods that pay little attention to water quality. This deficiency can cause serious problems for fish health and quality, potentially detrimental to cultivation activities. To optimize fish growth, pH and dissolved oxygen control are necessary. This study created a microcontroller-based automation system to control pH (5-8.5) and dissolved oxygen (> 5 mg/L) in tilapia ponds. Field testing showed that the pH and dissolved oxygen sensors have low error rates of 5.07% and 4.80%, respectively. Laboratory testing showed that the system worked successfully with relative error percentage values of pH and DO testing of 5.71% and 20% of the setpoint.
Co-Authors Daniel Marwill Djoe Ishak S. Limbong Jahirwan Ut Jasron Liberatus Liem Muhamad Jafri Murni pallawagau Yasoni Eliaser Seran