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All Journal Albacore : Jurnal Penelitian Perikanan Laut Jurnal Penelitian Perikanan Indonesia Quantum Teknika
Wibowo, Berbudi
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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TEKNOLOGI LORA SEBAGAI MODUL KOMUNIKASI NIRKABEL DI PELABUHAN PERIKANAN: UJI STABILITAS KONEKSI DI PELABUHAN PERIKANAN KARANGANTU Muryanto, Sri; Hermawan, Maman; Belyamin, Belyamin; Wibowo, Berbudi
Jurnal Penelitian Perikanan Indonesia Vol 31, No 3 (2025): (September 2025)
Publisher : Politeknik Kelautan dan Perikanan Karawang, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.31.3.2025.%p

Abstract

Pemantauan kapal di pelabuhan perikanan merupakan aspek yang krusial dalam keselamatan kapal dan kelancaran operasional di pelabuhan perikanan. Pemantauan yang dilakukan secara manual sangat rentan terhadap kesalahan yang berakibat pada kurugian operasional pelabuhan. Pengembangan teknologi IoT dengan modul jaringan LoRa menawarkan solusi otomatisasi pemantauan dan operasional pelabuhan perikanan. Penelitian ini bertujuan untuk menguji stabilitas koneksi perangkat komunikasi LoRa yang diaplikasikan dalam sebuah konsep IoT.  Hasil pengujian menunjukan bahwa LoRa memiliki stabiltas koneksi yang baik dilingkungan pelabuhan dengan throughput stabil pada 8,73 B/s dan latency 2,28 detik pada jarak hingga 1750m. Penelitian ini membuka peluang lebih lanjut untuk pengembangan dan penerapan sistem IoT di pelabuhan perikanan dengan menggunakan modul LoRa media komunikasi nirkabel.
ANALYSIS OF DIFFERENT MOUTH OPENINGS OF KNOCK-DOWN TRAPS IN SERANG WATERS, BANTEN Daud, Moh. Ramadan; Sudrajat, Danu; Wibowo, Berbudi
Jurnal Penelitian Perikanan Laut (Albacore) Vol 9 No 1 (2025): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.9.1.103-116

Abstract

Traps is a common fishing tool used by traditional fishers to catch demersal fish and reef fish. However, there are several problems related to the use of bubu in fishing. This study aims to test the effectiveness of knock-down traps in catching demersal fish and analyze the catch. This study compared two types of traps that have different mouth-opening sizes. This study used a Randomized Group Design (RAK) with two other treatments based on the size of the mouth opening. The fishing process was carried out with as many as 9 replicates or 9 trips. The research was conducted at three locations with different seabed characteristics. Bubu was installed for a month, then observations were made on the type, size, and weight of fish caught. The results showed that in both gear designs, there was a real effect on catches. The impact of Bubu with Bubu mouth opening size A is more effective in catching demersal fish than Bubu B. In Bubu A there were 131 fish caught weighing 71.7 kg, while Bubu B only produced 74 fish weighing 28.8 kg. There were 11 species of demersal fish caught with a greater variety of species in Bubu A, namely 11 species of fish, and in Bubu B as many as 6 species of fish. Key words: bubu mouth opening, effectiveness, demersal fish, catch
Analisa Kinerja Mesin Freezer Kapasitas 100 Liter dengan Penambahan Subcooler untuk Proses Pembekuan Es Batu Anwar, Mochamad; Sudrajat, Danu; Belyamin; Wibowo, Berbudi; Soeboer, Deni Achmad; Moryanto, Sri
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 7 No. 2 (2026): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v7i2.30007

Abstract

The independent demand for ice by coastal communities and small-scale business operators is commonly fulfilled using small-scale freezer units. The cooling prici performance is a critical parameter for evaluating operational effectiveness and energy efficiency. This study evaluates the performance of a 100-liter freezer equipped with a subcooler compared to a standard configuration. The system was tested for 240 minutes at an ambient temperature of approximately 30 °C, with thermal and electrical parameters recorded every 20 minutes. Temperature, operating pressure, and power consumption data were analyzed to determine thermodynamic parameters, including the actual coefficient of performance (COP), Carnot COP, and system efficiency. The results indicate that the freezer configuration with a subcooler produces a lower refrigerant temperature after the compressor, ranging from 62–63 °C, compared to 71–72 °C in the standard configuration. The refrigerant temperature after the condenser decreased from 46–47 °C to 32–33 °C. The discharge pressure was reduced from 90–95 psi in the standard system to 60–80 psi in the subcooled system. The actual COP increased from 1.93–2.95 to 2.26–3.44, while the Carnot COP increased from 2.82–3.97 to 3.08–4.36. System efficiency was higher in the freezer with the subcooler, ranging from 73–79%, compared to 68–74% in the standard freezer. Overall, the integration of a subcooler improves heat transfer performance, reduces compressor workload, and increases energy efficiency by approximately 3–6%.
Co-Authors Belyamin Belyamin Daud, Moh. Ramadan Maman Hermawan Mochamad Anwar Moryanto, Sri Muryanto, Sri Soeboer, Deni Achmad Sudrajat, Danu