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All Journal Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim
Immawan Insani
Akademi Maritim Nusantara Cilacap
Computer Science & IT Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Karakteristik Efisiensi Air Cooler dengan Penambahan Sponge di Kabin Kapal Papua Jaya Karya Yohanes R. Purnomo; Immawan Insani
SAINTARA Vol 7 No 2 (2023): SAINTARA (September 2023)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v7i2.240

Abstract

The direct evaporative cooling system is a very simple method used to cool the air. This research aims to determine the characteristics of air coolers by comparing air coolers that have not been modified with air coolers that have been modified. Modifications to the air cooler by adding a sponge placed in front of the honey comb cooling pad with dimensions p = 30 cm, l = 25 cm, t = 1.5 cm. Tests were carried out using an air cooler by comparing the working fluids used in the form of water and ice water and using 3 different air velocities. The characteristics of the air cooler in this study show that the comparison of the air cooler with the modification of adding sponge is better than without modification. The efficiency value during testing shows that at low speed with fluid conditions in the form of ice water in the air cooler with the modification of adding sponge, it has the highest value, namely η = 97.4%. This is caused by air contact with water on the cooling pad at low speed for longer than at higher speeds, which causes heat absorption in the air to be more efficient.
Perancangan Sistem Monitoring Suhu Pada Unit Pod Propulsion Kapal Nelayan Tradisional Berbasis Internet Of Things Immawan Insani; Agustinus Andrie Prasetyo; Lusiani Lusiani; Priyani Budiyarti
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 5 No. 2 (2026): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v5i2.4506

Abstract

The development of Internet of Things (IoT) technology has made a significant contribution to the advancement of monitoring systems in the maritime sector, particularly in supporting the safety and operational efficiency of vessels. One of the common problems encountered in traditional fishing boats is overheating in the pod propulsion unit due to the limited availability of real-time temperature monitoring systems. This study aims to design and implement an IoT-based temperature monitoring system for the pod propulsion unit of traditional fishing boats using an ESP32 microcontroller. The developed system utilizes DHT11 and BMP180 sensors to detect temperature, humidity, and pressure parameters in the engine environment, and transmits the data in real time to the ThingSpeak cloud platform via an internet network. This research employed an experimental engineering approach consisting of hardware design, software integration, system testing, and monitoring performance analysis. Testing was conducted on an engine simulator and a traditional fishing boat with data acquisition intervals of 10–20 minutes. The results show that the system is capable of monitoring temperature in real time, displaying data locally through an OLED LCD, and providing remote visualization through a cloud-based platform. The system can also present continuous temperature data and facilitate engine condition monitoring to support overheating prevention. However, system performance is still influenced by internet connection stability and the limited accuracy of the DHT11 sensor at high temperatures. This study contributes to the development of an energy-efficient, easy-to-implement IoT-based maritime monitoring system suitable for traditional fishing boats in Indonesia.
Co-Authors Agustinus Andrie Prasetyo Lusiani Lusiani Priyani Budiyarti Yohanes R. Purnomo