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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat INOVTEK POLBENG Gorontalo Fisheries Journal Wave: Jurnal Ilmiah Teknologi Maritim JURNAL SAINTIS Specta Journal of Technology Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Pengabdian kepada Masyarakat Journal of Materials Exploration and Findings Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) WAVE: Jurnal Ilmiah Teknologi Maritim
Luh Putri Adnyani
Institut Teknologi Kalimantan
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Transportation Other

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Kajian Meteorologi dan Oseanografi Perairan Balikpapan-Tarakan sebagai Rute Health Boat untuk Pelayanan Kesehatan Pulau Terpencil Kalimantan Luh Putri Adnyani
SPECTA Journal of Technology Vol. 1 No. 1 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1292.863 KB) | DOI: 10.35718/specta.v1i1.71

Abstract

Distribution of medical facilities in Indonesia is uneven, so residents in remote islands have difficulties to reach it. We need to build health boat, a floating facility that provide standard services like in the hospital, especially in Derawan and Tarakan Islands in East Kalimantan. This Health boat has a homebase in Balikpapan. Therefore, the condition of the sea between Balikpapan, Derawan, and Tarakan need to be reviewed. One method to determine the condition of the sea is analysis of meteorological and oceanographic, which enable us to get the maximum wave height estimation. Long tern wave forecast can be obtained by using statistical methods of measurement to provide data of high wave in 1, 10, 25, 50 and 100 years.
Karakteristik Respon FPSO Konversi Tanker Ukuran 310 M: Response Characteristics of FPSO Conversion of Tanker Size 310 M Adnyani, Luh Putri; Harahap, Rima Gusriana
JURNAL SAINTIS Vol. 19 No. 1 (2019)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1943.973 KB) | DOI: 10.25299/saintis.2019.vol19(1).2524

Abstract

[ID] Floating Production Storage and Offloading (FPSO) sudah banyak beroperasi di seluruh dunia dan akan lebih banyak lagi yang akan dibangun untuk eksplorasi dan eksploitasi laut dalam. Penelitian ini menunjukkan respon dari FPSO dengan ukuran 310 m lpp dan membandingkan nilai respon yang didapat dengan experiment yang didapatkan oleh Kim. Penelitian dimulai dengan memodelkan FPSO sesuai dengan data yang ada dan melakukan analisa dengan menggunakan pemodelan numeric. Dari hasil analisa didapatkan bahwa respon dari FPSO sangat dipengaruhi oleh gerakan dari FPSO akibat gelombang dan bervariasi terhadap sudut. Respon gaya geser longitudinal maksimum pada sudut 120o. Respon gaya geser transversal maksimum pada sudut 90o. Respon gaya geser vertikal maksimum pada sudut 90o. Respon roll moment maksimum pada sudut 90o. Respon pitch moment maksimum pada sudut 120o. Respon yaw moment maksimum pada sudut 60o. [EN] Floating Production Storage and Offloading (FPSO) has a lot of operating around the world and there will be more to be built for the exploration and exploitation of deep sea. This study shows the response of the 310 m LPP FPSO and compares the responses with experiment result by Kim [1]. The study begins by modeling the FPSO in accordance with the existing data and to analyze using numerical modeling. From the results found that the response of the FPSO is strongly influenced by the heading and motion of the FPSO. Maximum longitudinal shear force in 120o, maximum transverse shear force in 90o, maximum vertical shear force in 90o, maximum roll moment in 90o, maximum pitch moment in 120o, maximum yaw moment in 60o.
ANALISIS RISIKO KEJATUHAN JANGKAR TERHADAP PIPA BAWAH LAUT DI NATUNA Adnyani, Luh Putri; Siregar, Hifzul Anwar; Putri, Destyariani Liana; Nurmawati, Nurmawati; Wirawan, Muhammad Khaisar
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 1, March 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v6i1.43394

Abstract

Energy is a fundamental element in economic and social development, with oil and natural gas remaining the primary energy sources in Indonesia. To support the distribution of hydrocarbons from production facilities to onshore locations, subsea pipelines serve as vital infrastructure in the upstream oil and gas industry. However, subsea pipelines face various external risks, including dropped ship anchors, which can cause significant damage both technically and environmentally. This study aims to analyze the risk level of dropped anchors on subsea pipelines in Natuna. The methodology involves data collection related to pipeline characteristics, vessel traffic, and anchor types. Consequence analysis is conducted by calculating pipeline dent levels due to anchor kinetic energy based on the DNV-RP-F107 guideline. The results show that the anchor impact energy on the pipeline is approximately 3,94 kJ, placing the pipeline consequence level in the <5% dent/diameter category. Risk assessment using a risk matrix indicates that the risk level remains within the ALARP (As Low As Reasonably Practicable) threshold, meaning the risk is acceptable with reasonable mitigation measures. The findings suggest that although dropped anchors can cause pipeline deformation, the resulting damage remains within safe limits. However, to further reduce potential risks, additional mitigation measures are required, such as vessel traffic monitoring, designated anchor-free zones, and enhancing pipeline resilience against external impacts.
Analisis Potensi dan Tingkat Pemanfaatan Sumber Daya Ikan di Perairan Balikpapan Luh Putri Adnyani; Nurmawati Nurmawati; Indira Anggriani
Gorontalo Fisheries Journal Volume 2 Nomor 2 October 2019
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.509 KB) | DOI: 10.32662/gfj.v2i2.772

Abstract

Balikpapan waters have a high potential for fisheries with an area of 300 km2. However, through BPS data in 2018, Balikpapan only accounts for 5% of East Kalimantan's fisheries production. Therefore, research related to the potential of fisheries in Balikpapan was conducted. The method used was a questionnaire to 40 fishers in the Manggar and Sepinggan villages. Several categories are asked. As for the results of the questionnaire, it is found that the condition of Balikpapan fishers are as follows: The fishing gear used by fishers in Balikpapan varies but is dominated by fishing nets and fishing rods. The length of boat ownership of 40 fishers is 37% of fishers having their boat between 1 to 3 years. Regarding the production, fishers only get 1 kg in worst season but could reach 80 kg in peak season. The number of trips for most Balikpapan fishers n is 30 days a month, but also depends on the weather. The South monsoon, many fishers do not go out to sea. Every trip, fishers have capital of between Rp. 100,000 up to Rp. 500,000. The education level of Balikpapan fishers is mostly elementary and junior high school graduates. Most of Balikpapan fishers are in the productive age range, 30-40 years. Regarding fishing boat ownership, it can be categorized into two types, namely own boats or shared boats. For shared boats, boat owner get a more significant share of the production. The catch of fishers is still not processed. Catches that are not sold are eaten alone or given to neighbours. More than half of the Balikpapan fishers who were questioned did not have any skills other than fishing. The ratio of fishers who have received training from the government, private sector or academics with those who do not is 6: 4. Balikpapan fishers are not familiar with aquaculture.
Risk Analysis and Mitigation of Occupational Safety Accidents in the Maintenance Process of Units Adnyani, Luh Putri; Rimeily; Putri, Destyariani Liana; Nurmawati; Wirawan, Muhammad Khaisar
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1334

Abstract

The maintenance process involves the use of various equipment, machinery, and workspaces, all of which inherently present occupational hazards. If these risks are not adequately addressed, they may lead to workplace accidents. Ensuring worker protection remains a critical concern due to the persistent occurrence of occupational incidents and the presence of workplace hazards that pose significant risks to employees. Therefore, this study aims to identify and assess occupational accident risks during unit maintenance, develop strategies to mitigate these risks, and enhance occupational safety and health (OSH) practices at company. This study identified 27 potential workplace accidents arising from six major hazard categories. These hazards were incorporated into a structured questionnaire, which was then distributed to relevant workers to gather empirical data. The collected responses were analyzed and systematically classified using a risk matrix framework, categorizing risks from low to high levels to prioritize appropriate mitigation measures. The risk assessment identified several high-risk incidents, particularly those categorized under accident codes A1, A3, B3, B4, B5, C3, C4, D1, D5, E1, E2, E3, E4, and E5. Following the risk assessment, targeted mitigation strategies were implemented to address workplace hazards across various job functions. These measures included the mandatory use of personal protective equipment (PPE) tailored to specific tasks, alongside strict adherence to established safety protocols and warning systems to prevent occupational accidents. The findings highlight the necessity for continuous safety monitoring, employee training, and a proactive risk management approach to ensure a safer working environment.
PERSEPSI MASYARAKAT KAMPUNG PELITA UNTUK BUDIDAYA LELE BERBASIS BIOFLOK DAN ENERGI TERBARUKAN SERTA INOVASI PRODUK OLAHAN: ANALISIS MINAT DAN KESIAPAN WARGA Adnyani, Luh Putri; Habibie, Fadeli Muhammad; Wirawan, Muhammad Khaisar; Suci, Indah Melati
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 4: September 2025
Publisher : Bajang Institute

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Abstract

Kegiatan pengabdian ini dilaksanakan di Kampung Pelita, Balikpapan, dengan tujuan untuk menganalisis persepsi, minat, dan kesiapan masyarakat dalam mengadopsi budidaya ikan lele berbasis teknologi bioflok, pemanfaatan energi terbarukan (PLTS), serta pengembangan produk olahan bernilai tambah. Permasalahan yang dihadapi mitra meliputi metode budidaya tradisional, keterbatasan energi, minimnya inovasi produk, dan kurangnya pelatihan teknis. Metode pelaksanaan meliputi survei lapangan, penyebaran kuesioner dikotomis kepada 16 kepala keluarga, serta wawancara untuk menggali informasi kualitatif. Hasil menunjukkan bahwa meskipun pemahaman awal tentang teknologi bioflok dan PLTS masih rendah, terdapat antusiasme tinggi untuk mengikuti pelatihan dan mengembangkan usaha berbasis ikan lele. Program ini menunjukkan potensi besar dalam memperkuat ekonomi keluarga dan dapat direplikasi untuk komunitas lain dengan karakteristik serupa.
Comparison of Motion Response Characteristics of Tension Leg Platform Structure Threestar and Fourstar Syarief, Rafi Irsyad; Adnyani, Luh Putri; Putri, Destyariani Liana
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481434

Abstract

Tension Leg Platform (TLP) is a floating structure used for deep-sea oil and gas exploration with a tendon mooring system that maintains its stability. This study aims to compare the dynamic response of two TLP configurations, namely Threestar and Fourstar, during free-floating. Modeling is conducted numerically using ANSYS SpaceClaim and hydrodynamic simulation through ANSYS AQWA. The structural dimensions are modified from TLP A West Seno using displacement as validation. Environmental loading is based on wave, wind, and current data from the Makassar Strait waters. The simulation results show that the Threestar configuration has a higher Response Amplitude Operator (RAO) value in translational and rotational movements than Fourstar, except for heave movements where Fourstar is slightly more dominant. The difference in RAO values ​​reflects the effect of the number and configuration of pontoons on structural stability. Fourstar, which is more symmetrical to the X and Y axes, shows a more stable response. In addition, TLP structures tend to show better performance in longer wave periods. Thus, the Fourstar structure is more recommended as it provides higher stability in challenging sea conditions.
Fitness for Service (FFS) and Fatigue Assessment for Shell Distorted Steel Storage Tank Based on API 579-1/ASME FFS-1 Herucakra, Wira, Sr. Structure Engineer; Adnyani, Luh Putri; Prasetyo, IC Farid Hadi; Rizkhita, Alviani Rahma
Journal of Materials Exploration and Findings Vol. 3, No. 1
Publisher : UI Scholars Hub

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Abstract

A shell distortion was occurred due to incorrect in the welding procedure during construction of a new built above ground steel storage tank. The assessment level 1 then performed referred to original construction code of API Standard 650 was performed, the roundness data of tank plate was obtained through to laser scanning survey, and the result on assessment level 1 known that the minimum radius of measured point is exceeding the radius tolerance. This unacceptable condition of assessment level 1 requires to be performed the higher level of assessment. A fitness for service assessment level 3 for tank 1000 KL was performed based on API 579-1/ASME FFS-1 Fitness For service Part 8 Assessment of Weld Misalignment and Shell Distortions, The stress analysis procedure is in accordance to on API 579-1/ASME FFS-1 Fitness For service Annex 2D Stress Analysis Overview for FFS Assessment, the load case condition considered under combined static, environmental and seismic loading condition and the acceptance criteria is in accordance with ASME B&PV Code - Section VIII - Division 2, API Standard 650 and ASCE 7.
Ultimate Limit State Reliability-Based Approach Life Prediction of an Existing Frame Structure Under Seismic Hazard in Indonesia Herucakra, Wira; Adnyani, Luh Putri
Journal of Materials Exploration and Findings Vol. 4, No. 1
Publisher : UI Scholars Hub

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Abstract

Life assessment integrated with Structural Integrity Management (SIM) has been implemented in the oil and gas industry for the past decade to maintain the integrity and safety of an in-service structure used to support hydrocarbon exploration, production, and processing activity. Current structural life assessment, as ruled by the American Petroleum Institute (API), uses a fatigue-based approach for offshore structures subjected to wave loading. As the general principle of SIM is not limited to offshore structures, this study offers an alternative life assessment method for onshore structures, especially steel frame structures subjected to earthquake loads. Reliability analysis, combined with the effect of the time-related degradation mechanism of steel structure due to corrosion and mechanical damage, with non-linear structural analysis, produces comprehensive ultimate limit state behaviour and performance of an existing structure. A steel frame structure located in Indonesia was evaluated in this study, with the reference base shear developed based on the latest Indonesian Seismic Provision SNI 1726-2019; the life of the structure was estimated by determining the time interval required for the overstrength factor produced from the pushover analysis to approximate 1.0. The assessment demonstrated that the life of the existing structure exceeds its design life and is safe for operation.
Fatigue Life Analysis of Subsea Pipelines due to Vortex Induced Vibration (Viv) at Free Span Case: Wnts (West Natuna Transportation System) Siregar, Hifzul Anwar; Adnyani, Luh Putri; Nurcholik, Samsu Dlukha; putri, Destyariani Liana
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481529

Abstract

Subsea pipelines in free-span conditions are highly susceptible to Vortex-Induced Vibration (VIV), which generates cyclic stresses and accelerates fatigue failure. This study investigates the fatigue life of a West Natuna Transportation System (WNTS) subsea pipeline under varying heading flow angles (30°, 45°, and 90°) using ANSYS CFD simulations and the Palmgren-Miner fatigue model, in accordance with DNV-RP-F105. Simulations considered Reynolds numbers of 100, 500, and 3.91×10⁵ to capture laminar-to-turbulent flow regimes. Results show that the 90° heading flow produces the most severe VIV, with maximum bending stresses up to 5.59×10⁸ Pa and a corresponding minimum fatigue life of less than 10⁵ cycles, while 30° heading yields significantly longer lifespans, exceeding 10¹⁶ cycles in some cases. Average fatigue life decreased by up to 99.99% when flow incidence increased from 30° to 90° under turbulent conditions. The findings highlight that pipeline orientation relative to prevailing currents strongly influences vortex dynamics, and that aligning pipelines at oblique angles (30°–45°) can substantially reduce fatigue damage risk. These insights can inform the design and operational strategies of subsea pipeline systems in regions with strong and variable currents, such as the Natuna Sea.
Co-Authors ,, Alamsyah Adrian Gunawan Arsyad, Muhammad Abid Mapariorio Dianiswara, Anggoronadhi Fadeli Muhammad Habibie Harahap, Rima Gusriana Herucakra, Wira Herucakra, Wira, Sr. Structure Engineer Ikhwani, Rodlian Jamal Illa Rizianiza Indira Anggriani Lukytoardi Megantoro Nur Aisyah Nurmawati Nurmawati Nurmawati Nurmawati Nurmawati Nurmawati, N Prasetyo, IC Farid Hadi Putri, Destyariani Liana Rahmasari, Nindy widia Devi Raka Whibiseno Reza Furqan Arrachman Rimeily Rizkhita, Alviani Rahma Samsu Dlukha N Siregar, Hifzul Anwar Suci, Indah Melati Sulistijono, S. Syarief, Rafi Irsyad Whibiseno, Raka Wira Herucakra Wirawan, Muhammad Khaisar wulandari, amalia ika