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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan SITEKIN: Jurnal Sains, Teknologi dan Industri Majalah Ilmiah MOMENTUM JMPM (Jurnal Material dan Proses Manufaktur) KACANEGARA Jurnal Pengabdian pada Masyarakat Adimas : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Terapan Authentic Research of Global Fisheries Application Journal (Aurelia Journal) DEDIKASI PKM COJ (Coastal and Ocean Journal) Jurnal Polimesin
Siahaan, Juniawan Preston
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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CALCULATION OF COOLING LOAD IN COLD STORAGE FOR CATCH STORAGE Tumpu, Mula; Putra, Moh. Nurhabibie Eka; Siahaan, Juniawan Preston; Abrori, M. Zaky Latief; Demeianto, Bobby; Haris, Dendi
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.14671

Abstract

This study aims to calculate the cooling load required in Cold Storage to store fish catches. Cold Storage is an important facility in the fisheries industry to maintain the quality and freshness of the product. Accurate cooling load calculation is essential to design an efficient and energy-saving refrigeration system. The methodology used includes data collection on Cold Storage specifications, environmental conditions, and characteristics of the stored products. The cooling load is calculated by considering factors such as transmission loads through walls, roofs, and floors; product loads; air infiltration loads; internal loads from lights, equipment, and personnel; and other loads. The calculation results show that the total cooling load for Cold Storage with a certain capacity is 17.68 kW. Sensitivity analysis was conducted to evaluate the effect of various parameters on the cooling load. This study also provides recommendations for optimizing Cold Storage design and operational strategies to improve energy efficiency. The results of this study can be used as a reference in designing and operating Cold Storage for more effective and economical storage of fish catches.
ASSESSMENT OF VOLTAGE AND CURRENT IMBALANCE ON PURSE SEINE FISHING VESSELS OPERATING IN THE NATUNA SEA: A COMPARATIVE STUDY BASED ON IEEE STD 45-2002 Demeianto, Bobby; Siahaan, Juniawan Preston; Abrori, M. Zaki L; Tumpu, Mula; Fadiga, Aqshal Ilham; Mahendra, Taufan; Nasution, Akhyar; Pane, Mhd Riswan
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.15628

Abstract

Although numerous studies have been conducted on voltage and current imbalance in electrical systems, research specifically focusing on these conditions in fishing vessels, particularly those operating in the Natuna Sea, remains very limited. This study aims to analyze the voltage and current imbalance on the generators of purse seine fishing vessels operating in the Natuna Sea, based on the IEEE Std 45-2002 and BKI Volume IV Year 2022 standards. A quantitative approach was employed, involving direct measurements of voltage (both line-to-line and phase-to-neutral) and current at the main distribution panels of five fishing vessels. The reference standard for Line Voltage Unbalance Tolerance (%LVUT) according to IEEE Std 45-2002 is ≤ 3%, while the acceptable limit for current imbalance according to BKI Volume IV Year 2022 is ≤ 15%. The results showed that the average voltage imbalance across the five vessels was below the IEEE tolerance limit (≤ 3%), with the highest recorded value being 4.34% on KM. Palembang Indah II. Meanwhile, current imbalance generally complied with the BKI limit (≤ 15%), except for KM. Rezeki Bersama, which exhibited the highest current imbalance at 30.48%. These findings highlight the need for mitigation measures, such as load redistribution and phase balancing, particularly on vessels with significant imbalance levels. This study provides practical contributions to improving the reliability of vessel electrical systems and enhancing operational safety within Indonesia’s marine fisheries sector. 
Pelatihan penggunaan generator portable tenaga surya bagi nelayan tradisional di Bangsal Aceh Kota Dumai Yaqin, Rizqi Ilmal; Demeianto, Bobby; Siahaan, Juniawan Preston; Tumpu, Mula; Abrori, Muhammad Zaki Latif; Priharanto, Yuniar Endri; Lagsmana, Tegar; Gunawan, Frans Ardhy
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 6, No 1 (2023): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v6i1.1292

Abstract

Nelayan dalam melakukan operasi penangkap ikan umumnya dilakukan sampai malam hari sehingga membutuhkan listrik untuk sistem penerangan dan navigasi. Beberapa nelayan KUB Kuda Laut di Bangsal Aceh, Kota Dumai memiliki kapal berbentuk sampan yang memiliki tempat yang sempit. Tujuan dari pengabdian ini yaitu memberikan solusi berupa pelatihan penggunaan generator portable tenaga surya untuk sistem kelistrikan di kapal yang sempit. Metode pengumpulan data dalam menentukan ketercapaian keberhasilan kegiatan menggunakan skala likert. Kegiatan di lakukan dalam satu hari berupa materi teori dan praktik. Peserta sebelum diberikan materi diberikan pre-test. Sedangkan setelah materi selesai diberikan post-test dan kuesioner kepuasan sebagai instrument kegiatan tingkat keberhasilan. Berdasarkan analisa didapatkan hasil kenaikan pre-test dan post test seuai kategori yaitu Pengetahuan, 85,41%, Pengoperasian 95,75% dan Pengisian Energi 92,77 serta tingkat kepuasan peserta yaitu 69% Sangat Puas. Analisa ketercapaian dari kegiatan ini secara berturut-turut menurut kategori penyajian, dampak kegiatan dan kebermanfaatan kegiatan yaitu 92,4%; 91,7% dan 93,1%. Jika di rata-rata didapatkan nilai ketercapaian mendapatkan nilai 92,4%.
The Influence of Sea Water Immersion on the Mechanical Properties and Structure of Carbon Fiber/Polyester-PEG Composite Materials Prakoso, Bagas; Pujianto, Andreas; Saharuddin, Saharuddin; Sirait, Egbert Josua; Yaqin, Rizqi Ilmal; Siahaan, Juniawan Preston; Fakhrudi, Yoga Ahdiat
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 9 No. 1 (2025): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v9i1.24448

Abstract

Structural batteries are a crucial solution in dealing with issues related to vehicle electrification to achieve energy sustainability in the future. However, the development of structural battery technology for electric-powered ships is still very limited. In particular, there are limitations in evaluating the mechanical performance of carbon fiber/polyester-PEG based composite materials for structural battery applications in electrically powered vessels. The main focus of this research is to fabricate carbon fiber/polyester-PEG to further observe the performance of its mechanical properties and structure when interacting with sea water. The value of the addition of polyethylene glycol (PEG) to the fabrication carried out was varied by 0%, 10%, and 25%. The results show that addition of 10% PEG produces a composite with the highest tensile strength, increasing the toughness of the polyester material. However, all samples experienced a decrease in tensile strength after immersion due to decreased bond performance between the fibers and seawater. The addition of 25% PEG resulted in a significant decrease in mechanical properties because high levels of PEG content made the sample easily brittle and destroyed when interacting with seawater. This research can provide initial studies on the development of carbon fiber/polyester-PEG composite materials that can be used as structural battery building materials for future electric boat applications.
The ANALISIS HUMAN ERROR PADA PENGOPERASIAN MESIN PENGGERAK KAPAL PENANGKAP IKAN DI BITUNG SULAWESI UTARA Demeianto, Bobby; Siahaan, Juniawan Preston; Priharanto, Yuniar E.; Yaqin, Rizqi Ilmal; Tumpu, Mula; Faqih, M. Bil; Pujianto, Andreas; Nurfauzi, Akhmad; Abrori, Muhammad Zaki Latif
Coastal and Ocean Journal (COJ) Vol 7 No 2 (2023): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v7i2.50284

Abstract

Pengoperasian mesin penggerak kapal cukup kompleks, memerlukan keahlian dan keterampilan yang layak untuk dapat mengoperasikan mesin. banyaknya kesalahan dalam mengoperasikan mesin merupakan hal yang mungkin terjadi. Tujuan penelitian ini menganalisis terjadinya kesalahan mengoperasikan mesin penggerak kapal yang disebabkan oleh human eror. Untuk mendapatkan hasil yang valid, pengamatan kru ketika mengoperasikan mesin dilakukan, setiap pekerjaan di breakdown untuk mendapatkan pekerjaan spesifik secara detail dengan Hierarkikal task analisis. Data yang dihasilkan dengan Systematic Human Error Reduction and Prediction Approach (SHERPA) dianalisis secara komprehensif. Hasilnya di dapatkan 21 pekerjaan spesifik dengan kriteria pemeriksaan, aksi dan komunikasi. Human error yang terjadi pada profil risiko rendah dan sedang. Rekomendasi diberikan untuk memperbaiki profil risiko. Hasil penelitian ini memberikan dampak yang signifikan untuk mengatasi permasalahan pengoperasian mesin yang disebabkan kesalahan manusia.
Co-Authors Abrori, M. Zaki L Abrori, M. Zaki Latif Abrori, M. Zaky Latief Ade Hermawan Anjaska, Riski Arianto, Didin Darmawan Darmawan Demeainto, Bobby Demeianto, Bobby Djunaidi Djunaidi Fadiga, Aqshal Ilham Fakhrudi, Yoga Ahdiat Faqih, M. Bil Febi Luthfiani, Febi Gunawan, Frans Ardhy Haris, Dendi Haris, Rangga Bayu Kusuma Lagsmana, Tegar Mahendra, Taufan Mega Lazuardi Umar Muhammad Nur Arkham Nasution, Akhyar Nugroho, Setyawan Dwi Nurfauzi, Akhmad Pamaharyani, Luchiandini Ika Pane, Mhd Riswan Pradana, Syahrul Prakoso, Bagas Priharanto, Yuniar E. Priharanto, Yuniar Endri Pujianto, Andreas Putra, Moh. Nurhabibie Eka Rizqi Ilmal Yaqin Rizqi ilmal yaqin, Rizqi ilmal Saharuddin Sigiet Haryo Pranoto Sihombing, Nasib Sirait, Egbert Josua Tumpu, Mula Zein, Lukman Adria Saputra