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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Journal of Science and Applicative Technology Jurnal Penelitian Perikanan Indonesia Authentic Research of Global Fisheries Application Journal (Aurelia Journal) MARLIN : Marine and Fisheries Science Technology Journal Community Development Journal: Jurnal Pengabdian Masyarakat Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Sains dan Teknologi Geosfera: Jurnal Penelitian Geografi Jurnal Penelitian Chanos Chanos Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Megaptera Scientific Contributions Oil and Gas
Firdaus, Anas Noor
Program Studi Teknologi Kelautan - Politeknik KP Pangandaran Jl Raya Pangandaran KM.02, Pangandaran, Jawa Barat-Indonesia
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Rancang Bangun Generator Turbin Angin Axial Flux Permanent Magnet (AFPM) Neodymium dengan Stator berbahan Fiberglass Anas Noor Firdaus; Kusdinar, Afriana; Fauzhan, Alif Paraj; Wibowo, Yuni Ari
INSOLOGI: Jurnal Sains dan Teknologi Vol. 3 No. 6 (2024): Desember 2024
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v3i6.4777

Abstract

Alternative energy are need for the energy crisis that has occurred recently, one of the efforts to create alternative energy is by using wind, the energy obtained from the wind is converted into a generator. In general, generators produce voltage at quite high rpm, and also require exciter current for the trigger current to produce voltage. The aim of this research is to design a generator to obtain a constant voltage with low rotation, so a low speed generator is needed, namely the Axial Flux Permanent Magnet (AFPM) Generator. Methods and design results. The generator is made in the form of a single stator, single rotor. The generator stator is designed using fiberglass as a holder for 9 coils, while the rotor is designed in a disk shape using iron as a holder for the Neodymium N52 iron boron permanent magnet, totaling 9 slots and 12 poles, each slot consisting of 125 coils with a diameter of 0.6 mm, can work at revolutions per minute above 300, the faster the better and a maximum of 1200 rpm, the generator frame is also made using a main motor housing. Based on the objectives, methods and design results, the generator created can produce a voltage of 6 volts at a maximum rotation of 1500 rpm when tested in a low speed wind column of less than 14 m/s
Rancang Bangun Wahana Unmanned Surface Vehicle (USV) Berbahan Fiberglass Dengan Pengendali Wireless Remote Control Baswantara, Arif; Kusdinar, Afriana; Wahyudi, Andri; ., Suhernalis; Firdaus, Anas Noor; Ramdani, Fuzi
JURNAL MEGAPTERA Vol 3, No 1 (2024): Jurnal Megaptera (JMTR)
Publisher : Politeknik Kelautan dan Perikanan Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jmtr.v2i2.14453

Abstract

Teknologi Unmanned Surface Vehicle (USV) sesungguhnya telah berkembang, akan tetapi mendesain dan membuat suatu USV yang mudah untuk diikuti menjadi penting. Berdasarkan hal tersebut, penelitian ini bertujuan menghasilkan rancang bangun wahana USV dengan tipe katamaran dan berbahan dasar fiberglass yang ringan. Sistem kendali wahana USV menggunakan wireless remote control 2,4 Ghz. Wahana USV yang telah berhasil didesain dan dibangun, selanjutnya dilakukan pengujian untuk melihat kemampuan kecepatan dan manuvernya. Berdasarkan hasil pengujian yang dilakukan, diperoleh wahana USV mampu bergerak lurus dengan kecepatan rata-rata 1,3 m/s, dan berputar 360° dengan kecepatan rata-rata 1,03 m/s dan 1,07 m/s. Wahana USV yang dihasilkan masih memerlukan beberapa perbaikan pada pengatur kecepatan, sehingga di masa yang akan datang dapat digunakan dalam aktivitas survei baik itu di danau atau di perairan pesisir.Unmanned Surface Vehicle (USV) technology has actually developed, but designing and making a USV that is easy to be followed is important. Based on this case, this research aims to design a USV with a catamaran type and made from lightweight fiberglass. The USV control system uses a 2.4 Ghz wireless remote control. USV vehicles that have been successfully designed and built are then tested to see their speed and maneuverability. Based on the test results, the USV vehicle was able to move straight with an average speed of 1.3 m/s, and rotate 360° with an average speed of 1.03 m.s and 1.07 m/s. The result of the USV vehicle still needs some improvements to the speed regulator, so that in the future it can be used in survey activities either in lakes or in coastal waters.
PENGARUH RESPON GERAKAN TANKER PADA SISTEM TERTAMBAT CONVENTIONAL BUOY MOORING (CBM) TERHADAP VARIASI BEBAN LINGKUNGAN Wibowo, Yuni Ari; Firdaus, Anas Noor; Alfaris, Lulut
MARLIN Vol 3, No 1 (2022): (Februari 2022)
Publisher : Politeknik Kelautan dan Perikanan Pangandaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/marlin.V3.I1.2022.15-25

Abstract

Perkembangan sistem transfer minyak dan gas lepas pantai terapung tidak bisa dilepaskan dari perkembangan sistem tambat untuk menjaga posisi bangunan apung dalam kondisi stasionkeeping. Respon gerakan dan tension tali tambat merupakan parameter penting yang digunakan dalam merancang konfigurasi sistem tali tambat. Sistem tali tambat yang biasa digunakan pada perairan dangkal adalah sistem Conventional buoy Mooring (CBM), selain kemudahan dalam proses instalasi dan perawatan, sistem ini juga relatif lebih murah jika dibandingkan dengan sistem point mooring yang dapat berputar mengikuti arah beban lingkungannya (weathervaning). Analisis numerik pada konfigurasi tertambat CBM dilakukan untuk mengidentifikasi respon gerakan bangunan apung akibat beban lingkungan secara collinear dan non-collinear. Simulasi time domain Cummins dilakukan untuk menyelesaikan persamaan gerak tanker dan sistem tambat secara simultan. Pada analisis yang dilakukan, didapatkan respon gerakan tanker pada kondisi pembebanan non-collinear lebih dominan pada gerakan surge, sway dan pitch sebesar 82%, 10% dan 12% secara berturut-turut. Sedangkan gerakan heave, roll dan yaw, respon gerakan lebih besar ditemukan pada pembebanan collinear sebesar 3%, 64% dan 17% secara berturut-turut. Berdasarkan analisis fast fourier transform (FFT) didapatkan spectral density gerakan horizontal (surge, sway dan yaw) memiliki dua puncak, puncak pertama pada frekuensi rendah (0.00-0,10 rad/s), dipengaruhi oleh frekuensi natural sistem tertambat yang beresonansi dengan gelombang orde-2 dan puncak kedua pada frekuensi 0.30 rad/s yang dipengaruhi oleh gelombang orde-1.The development of a floating offshore oil and gas transfer system cannot be separated from mooring system development to maintain the position of the floating structure in a stationary condition. Motion responses and mooring line tensions are crucial parameters used in mooring system configuration design. The configuration of mooring system commonly used in shallow waters is the Conventional Buoy Mooring (CBM). In addition to the ease of installation and maintenance, this system is also relatively cheaper than the point mooring system, which rotates in the direction of the environmental load (weathervaning). Numerical analysis on the CBM moored configuration was carried out to identify the motion responses of the floating structure due to collinear and non-collinear environmental load cases. Cummins time domain simulation was carried out to solve motion equation of the tanker and mooring system simultaneously. This analysis generated motion response of tanker under non-collinear loading conditions was significat in surge, sway and pitch motion of 82%, 10% and 12%, respectively. While the heave, roll and yaw motion, greater response motion were found in collinear of 3%, 64% and 17%, respectively. Based on the fast Fourier transform (FFT) analysis, it found the spectral density of horizontal motion (surge, sway and yaw) has two peaks, the first peak is at a low frequency (0.00-0.10 rad/s), influenced by the natural frequency of the moored system which resonates with the 2nd order wave and a second peak at a frequency of 0.30 rad/s which is influenced by a 1st order wave.
KOLABORASI BERSAMA MASYARAKAT DALAM UPAYA REVITALISASI KAWASAN MANGROVE BULAKSETRA, PANGANDARAN, JAWA BARAT Baswantara, Arif; Wibowo, Yuni Ari; Alfaris, Lulut; Kusdinar, Afriana; Firdaus, Anas Noor; Sembiring, Kennedi; Hakim, Muhammad Romdonul; Prayitno, Muhammad Riyono Edi
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 6 (2023): Volume 4 Nomor 6 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i6.23568

Abstract

Kawasan mangrove bulaksetra yang berada di wilayah Desa Babakan, Kecamatan Pangandaran telah banyak mengalami alih fungsi lahan sejak tahun 2017. Alih fungsi ini mengakibatkan beberapa kerusakan, sehingga pengembalian ke kondisi semula (revitalisasi) perlu dilakukan khususnya pada pengembalian vegetasi mangrove dan vegetasi pesisir lainnya di kawasan ini. Selain melaksanakan aktivitas penanaman, kolaborasi bersama kelompok penggerak masyarakat juga dirasa penting agar proses revitalisasi ini dapat berlangsung secara berkelanjutan. Kegiatan Pengabdian Kepada Masyarakat di Desa Babakan dilaksanakan secara terprogram selama enam bulan dengan enam tahapan kegiatan. Program ini dilaksanakan untuk membantu Kelompok Penggerak dan Pengelola Kawasan Pesisir Bulaksetra (KPPKP-Bulaksetra) yang telah ada di masyarakat, dalam proses revitalisasi kawasan mangrove. Berdasarkan hasil evaluasi yang dilaksanakan disetiap tahapan kegiatan dan di akhir program, diperoleh kesimpulan bahwa masyarakat merasakan manfaat dari program pengabdian tersebut, dan program ini akan terus dilanjutkan hingga proses revitalisasi menunjukkan perkembangan.
Rancang Bangun Mini Rov dengan Penggunaan PWM Speed Controller Module sebagai Sistem Kendali: Design and Build Mini Rov Using PWM Speed Controller Module as A Control System Alfaris, Lulut; Firdaus, Anas Noor; Bramawanto, Rikha; Hareva, Batih Shendy Capri; Putri, Miranda; Baswantara, Arif
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 2 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i2.43466

Abstract

Remotely Operated Vehicle (ROV) is an underwater vehicle or robot designed to able to move in the water. The increasing need for ROV in the future will require an ROV that is easy to build and operate. This study aims to design and build an ROV that is easy to manufacturing and easy to operate, which can be used for observation purposes in the future. The ROV designed with dimensions of length was 311,89 mm, width was 240 mm and height was 180 mm. ROV had three thruster motors with Pulse Width Modulation (PWM) Speed Controller Module as a control system. The ROV test were conducted motion tests and maneuvering tests, with the results shown that the ROV had an average forward speed of 0,26 m/s with the turning time was 6,3 s for 180° to portside, 6,7 s for 180° to starboard and time for circular motion was 8,2 s. The ROV’s motion test and maneuvering test showed good results, so that further development plans for this ROV can be carried out.
MONITORING MANGROVE COVER DYNAMICS FOLLOWING SHRIMP POND EXPANSION USING NORMALIZED DIFFERENCE VEGETATION INDEX (NDVI) ANALYSIS IN BULAKSETRA, PANGANDARAN Hakim, Muhammad Romdonul; Firdaus, Anas Noor; Baswantara, Arif; Kelana, Perdana Putra
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.17410

Abstract

The mangrove ecosystem along the coast of Bulaksetra, Pangandaran, West Java, plays a crucial role in mitigating potential tsunami disasters. However, over the last five years, the Bulaksetra mangrove ecosystem area has seen intensive operation of local shrimp ponds, which has negatively impacted the growth and health of the surrounding mangrove stands. This study aims to monitor the changes in mangrove cover from 2020 to 2024 within the Bulaksetra mangrove ecosystem using Sentinel-2 satellite imagery. The methodology employed to determine the extent and condition of mangrove cover involves the analysis of the Normalized Difference Vegetation Index (NDVI) processed using the Google Earth Engine (GEE) platform. The results indicate significant habitat degradation within the Bulaksetra mangrove ecosystem, evidenced by a 96.94% loss of the Dense canopy class by 2024. This shift in density class is characterized by a transition from the Dense class to the Sparse (54.37%) and Moderate (42.58%) classes, accompanied by a 5.18% decrease in the total mangrove area. Conversely, the area occupied by shrimp ponds has continuously expanded, with a growth rate reaching 1.31 hectares per year. The expansion of shrimp ponds demonstrates a negative correlation with mangrove cover in the Bulaksetra mangrove area during the 2020 – 2024 period.
Pemanfaatan Teknologi Monitoring Kualitas Air pada Sektor Budidaya di Desa Cintakarya, Kabupaten Pangandaran: Penelitian Wahyudi, Andri; Muhammad Romdonul Hakim; Yuni Ari Wibowo; Lulut Alfaris; Afriana Kusdinar; Anas Noor Firdaus; Arif Baswantara; Kennedi Sembiring; Suhernalis
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.3916

Abstract

Desa Cintakarya telah menjadi mitra Politeknik Kelautan dan Perikanan Pangandaran sejak 2021. Penelitian pengabdian ini bertujuan untuk meningkatkan kapasitas teknis pembudidaya dalam pemantauan kualitas air melalui penerapan teknologi monitoring serta mengevaluasi efektivitas pelatihan dan distribusi alat ukur. Metode pelaksanaan terdiri dari enam tahapan terstruktur meliputi perencanaan, survei lokasi, persiapan, penyampaian materi dan demonstrasi alat (pengukuran suhu dan TDS), monitoring lapangan, serta evaluasi akhir; pendekatan melibatkan pelatihan teknis, demonstrasi, kuisioner evaluatif, dan FGD. Hasil menunjukkan adanya peningkatan pemahaman praktis peserta terhadap penggunaan alat monitoring dan penerapan parameter kualitas air; penyerahan alat kepada Kelompok Pembudidaya Ikan Tirta Kahuripan memperkuat kapasitas operasional lapangan. Analisis kuisioner mengindikasikan 74% responden menilai kegiatan berhasil, 15% sangat berhasil, dan 11% netral. Observasi juga mengidentifikasi bahwa intervensi teknologi monitoring efektif untuk meningkatkan kapabilitas pembudidaya, namun keberlanjutan dampak memerlukan penguatan materi berbasis praktik dan peningkatan sarana pelatihan untuk mendukung adopsi teknologi secara luas.
Seasonal Variability of Surface Ocean Currents in the Southern Java Offshore based on Global Reanalysis Data Rahman, Abdul; Alfaris, Lulut; Wahyudi, Andri; Firdaus, Anas Noor; Nyuswantoro, Ukta Indra; Laeiq, Nazish
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.37281

Abstract

Surface ocean currents are a key component of marine circulation systems and play an important role in controlling physical and ecological processes in Indonesian sea. The Southern Java sea, which are directly connected to the eastern Indian Ocean, are characterized by dynamic surface circulation influenced by large-scale oceanic processes and seasonal monsoonal forcing. This study investigates the patterns and characteristics of surface ocean currents in the Southern Java sea using global ocean reanalysis data visualized through the Earth Nullschool platform. Seasonal variability was examined using representative monthly maps corresponding to the major phases of the Asian and Australian monsoon system, including January (West Monsoon), April (first transition season), July (East Monsoon), and October (second transition season). A descriptive analytical approach was applied to identify spatial and temporal variations in surface current direction and relative intensity across both coastal and offshore areas. The analysis reveals distinct seasonal differences in surface current behavior. During the East Monsoon period, surface currents exhibit stronger intensity and a more consistent alongshore orientation, reflecting enhanced wind-driven circulation and offshore transport. In contrast, the West Monsoon and transitional seasons are marked by weaker currents and greater directional variability, particularly in nearshore sea. These findings indicate that monsoonal wind forcing, combined with large-scale Indian Ocean circulation, is the primary driver of surface current variability in the study area. This study highlights the usefulness of reanalysis-based visualization for regional-scale oceanographic assessments in areas with limited in-situ observations. The results provide baseline information that supports regional oceanographic research and offers practical insights for marine resource management, fisheries, navigation, and coastal planning in the Southern Java sea
Evaluating Global Oil Data Reporting Consistency and Stability with Insights from Indonesia Taufik Roni Sahroni; Lulut Alfaris; Siagian, Ruben Cornelius; Andri Wahyudi; Anas Noor Firdaus; Ukta Indra Nyuswantoro
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.2010

Abstract

Transparent and consistent oil data reporting is a critical component of global energy governance and market stability. This study evaluates the consistency, stability, and overall quality of global oil data reporting from 2002 to 2025 using the dataset of the Joint Organizations Data Initiative (JODI), with Indonesia employed as a regional reference case. The principal indicators applied include the Index of Reporting Consistency (IRC), the Reporting Volatility Index (RVI), and the Oil Data Availability Index (ODAI). Countries are classified according to market role (producer or importer), economic grouping, and geographical region. The analysis further incorporates K-means clustering and structural change detection to assess temporal stability and responsiveness to major global shocks. The findings reveal substantial variation in reporting performance across countries. Nations exhibiting high IRC values and low RVI scores generally possess more mature institutional and statistical capacities, whereas those with low IRC scores tend to face governance or data management constraints. Oil-producing countries typically demonstrate higher ODAI values but display greater vulnerability to systemic crises, while importing countries show relatively more stable reporting patterns. Major global shocks in 2008, 2014, 2020, and 2022 exerted asymmetric impacts on producers and importers, highlighting structural vulnerabilities within the global energy reporting system. Indonesia demonstrates consistently strong reporting performance, with an ODAI value of 0.944, exceeding the averages of ASEAN (0.889) and OPEC (0.829). The country records a non-reporting rate of only 5.6% and a maximum non-reporting duration of ten months. This study addresses a gap in long-term, shock-sensitive analyses and introduces an integrated framework combining IRC, RVI, and ODAI as a novel approach for assessing oil data reporting quality. The findings provide a foundation for strengthening institutional capacity, enhancing regional coordination, and developing crisis-resilient reporting systems, while positioning ODAI as a practical indicator for evaluating energy governance and policy transparency.
Co-Authors ., Suhernalis Abdul Rahman Afriana Kusdinar Ahmadi, Haidar Atsil Meyshaffa Aldi Cahya Muhammad Andri Wahyudi ANDRI WAHYUDI, ANDRI Ariefka, Reza Arif Baswantara Astiyani, Wahyu Puji Aunzo, Jr., Rodulfo T. Fauzhan, Alif Paraj Godwin Latuputty Hakim, Muhammad Romdonul Hareva, Batih Shendy Capri Hassan, Rohana Ilham, Tiara Indra Jaya Kennedi Sembiring Laeiq, Nazish Lulut Alfaris M Kamal Abdal Nasser Nunik Wijayanti Nyuswantoro, Ukta Indra Perdana Putra Kelana Prayitno, Muhammad Riyono Edi Putri, Miranda Putriara Tresa Fitira Ramdani, Fuzi Rikha Bramawanto Sembiring, Kennedi Siagian, Ruben Cornelius Suhernalis Taufik Roni Sahroni Ukta Indra Nyuswantoro Wibowo, Yuni Ari Yusfiandayani Yusfiandayani