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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) International Journal of Social Service and Research Jurnal Maritim Malahayati Jurnal Venus Journal of Renewable Energy and Smart Device

Henny Pasandang Nari

Politeknik Ilmu Pelayaran Makassar

Author-ID : 6058093

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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Articles

ANALISIS PENGARUH PERUBAHAN TEMPERATUR AIR PENDINGIN TERHADAP KINERJA FRESH WATER COOLER PADA MESIN INDUK DI KAPAL MV. KALLA LINES XV Paulus Pongkessu; Yopie Pesulima; Henny Pasandang Nari; Adnan Adnan; Mahadir Sirman
JURNAL VENUS Vol 6 No 12 (2018): Desember
Publisher : PIP Makassar

Penelitian ini bertujuan untuk (1) Mengetahui pengaruh perubahan temperature terhadap penyerapan panas pada Fresh Water Cooler Mesin Induk di Kapal Tujuan Penelitian. (2) Menghitung laju perpindahan panas pada cooler. (3) Menghitung persentase penyerapan panas yang terjadi pada cooler. Metode yang dilakukan adalah (1) Mengambil data secara langsung terhadap obyek yang diamati. (2) Kajian literature terhadap teori-teori yang mendasari permasalahan yang ada serta penjelasan dari pembimbing. (3) Studi pustaka dilakukan dengan membaca dan mengutip literature yang relevan dan berkaitan dengan masalah yang akan dibahas. Hasil penelitian menunjukkan bahwa: (1) Semakin Tinggi temperature air tawar pendingin mesin masuk kedalam cooler maka semakin tinggi pula temperatur yang yang keluar dari cooler dan temperature air laut sebagai pendingin air tawar yang keluar dari cooler juga semakin tinggi karena dipengaruhi oleh temperature air tawar yang diserap oleh air laut. Disarankan Untuk mendapatkan temperature selalu dalam keadaan normal maka disarankan perawatan cooler dapat dilakukan secara berkala dengan cara membersikan pipa-pipa kapiller.

ANALISIS KUALITAS AIR BAKU SISTEM REVERSE OSMOSIS (RO) DI ENGINEERING BUILDING KAMPUS BARU POLITEKNIK ILMU PELAYARAN MAKASSAR Abdul Basir; Henny Pasandang Nari; Syahrisal Syahrisal; Sukur Arsyad
JURNAL VENUS Vol 5 No 10 (2017): Desember
Publisher : PIP Makassar

Air sangat penting dan vital di kampus 2 PIP Makassar untuk kebutuhan mandi dan cuci serta ibadah dan menyiram tanaman setiap hari bila masuk musim kemarau, namun dikelilingi air laut bahkan dibor dengan kedalaman 187 m airnya asin, kondisi inilah PIP mengadakan mesin reverse osmosis (RO) yang dapat mengubah air laut menjadi air tawar yang sehat untuk memenuhi kebutuhan air bersih di kampus 2 PIP Makassar. Penelitian ini bertujuan menganalisa kebuntuan membran pada instalasi RO yang menyebabkan lamanya waktu produksi dari 1,5-2 jam/tangki menjadi 5-6 jam/tangki, ini disebabkan kandungan air baku yang diisap pompa dengan kedalaman 187 m terdapat total dissolve solid (TDS) yaitu benda padat yang terlarut dalam air seperti meneral,garam, logam dan melekul air (H2O)termasuk air sangat keru. Metode yang digunakan adalah studi kepustakaan, lalu mengoperasikan RO dan mengamati proses kerjanya kemudian mengambil sampel pada tangki penampungan, tangki proses, tabung mempran dan tangki air baku serta tangki hasil produksi yang siap digunakan untuk mengetahui lama proses produksi. Hasil penelitian dan perhitungan menunjukkan bahwa TDS sebelum diolah 49850mg/liter setelah diolah RO sebesar 1080 mg/liternilai TDS air baku tidak boleh lebih dari 35.000 ppm karena akan menurunkan kecepatan produksi, RO di PIP Makassar dengan TDS air baku di atas 35.000 ppm sehingga membutuhkan biaya tinggi untuk perawatan membran.

ANALISIS PENGARUH TEMPERATUR AIR ECONOMIZER TERHADAP EFISIENSI KETEL DI KM MERATUS KUPANG Henny Pasandang Nari; Muh. Syuaib Rahman
JURNAL VENUS Vol 10 No 1 (2022): Maret
Publisher : PIP Makassar

Ketel uap adalah alat untuk menghasilkan uap air yang akan digunakan untuk pemanasan atau tenaga gerak. Fungsi utama boiler di kapal adalah untuk menghasilkan uap. Salah satu komponen utama sistem boiler adalah economizer yang digunakan untuk pemanasan awal feedwater. Selain itu economizer bermanfaat untuk menghemat penggunaan bahan bakar dengan mengambil panas gas buang (flues gas) sebelum terbuang ke atmosfer. Adapun tujuan penelitian ini adalah untuk mengetahui pengaruh temperature air economizer terhadap efisiensi ketel di kapal. Penelitian ini dilaksanakan di salah satu kapal PT. Meratus Line yaitu KM Meratus Kupang yang sandar di pelabuhan Makassar. Metode yang digunakan dalam penelitian ini adalah metode non participant observation, studi dokumentasi dan metode kepustakaan. Pengambilan data penelitian berupa data manual dan log book kapal berupa data temperatur economizer, boiler, dan data lain untuk keperluan penelitian. Hasil penelitian ini diperoleh data kapasitas uap boiler, konsumsi bahan bakar, temperatur gas buang, temperatur air masuk economizer, tekanan uap yang digunakan untuk menghitung efisiensi ketel. Dari hasil penelitian dan pembahasan dapat disimpulkan bahwa dengan bertambahnya temperature air economizer dari 650C, 660C, 670C mengakibatkan efisiensi ketel bertambah besar yaitu 71,31%, 73,76% dan 76,22% dan bertambahnya temperature uapyang dihasilkan ketel dari 2500C, 2550C, 2600C mengakibatkan efisiensi ketel bertambah besar juga yaitu 71,31%, 73,76% dan 76,22%.

Calculation of Comparison of Efficiency of Main Driving Machine Sister Ship Henny Pasandang Nari
International Journal of Social Service and Research Vol. 3 No. 5 (2023): International Journal of Social Service and Research (IJSSR)
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/ijssr.v3i5.363

The purpose of this study is to calculate the efficiency ratio of the main propulsion engine of the sister ship. Based on the research focus that has been described in the problem formulation, the type of research used is a type of quantitative research using comparative descriptive methods. This study took data on 2 (two) PELNI passenger ships docked at Makassar port, namely KM Bukit Siguntang and KM Lambelu. The process of data collection, data processing and analyzing research data lasted for 4 (four) months from June to September 2022. From the results of data processing contained in the results of research and discussion, it can be concluded that KM Lambelu engine efficiency of 44.145% where specific fuel consumption is 0.1848. KM Bukit Siguntang engine efficiency of 44.07% where specific fuel consumption is 0.1851.

COMPARATIVE STUDY OF EXHAUST EMISSIONS DIESEL FUELED SHIPS AND LIQUEFIED NATURAL GAS (LNG) henny pasandang nari
Jurnal Maritim Malahayati Vol. 4 No. 2 (2023): Jurnal Maritim Malahayati
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Pelayaran Malahayati

Show Abstract | Download Original | Original Source | Check in Google Scholar

LNG can be used as an alternative fuel in the shipping industry and as ship fuel because it can reduce exhaust emissions from CO2 by 30%, NOx by 85%, and SOx by 99.9% or 100%. If using Heavy Fuel Oil (HFO), the exhaust emissions cannot be reduced or equal to 100%. NOx emission restrictions, SOx are regulated in Maritime Pollution (MARPOL) Annex VI, in the future IMO will limit SOx gas emissions in fuel. Ships that will pass through Emissions Control Areas must limit sulfur in their fuel to 0.10%. Thus, LNG as an environmentally friendly fuel can be used in the ECA area.This study aims to calculate the amount of CO2, SOx, and NOx composition that can be reduced by using LNG. The method used is a literature study by recording technical data and ship operational data as primary data and other references from books, papers, journals, internet as secondary data. The ship data contains power, rotation, cylinder diameter, piston stroke, and other data needed to calculate the amount of CO2, SOx, and NOx composition that can be reduced if using LNG.The results showed that exhaust gas emissions CO2, SOx, and NOx that can be reduced by 25.2%, 100% and 79.46%.

Performance Testing of Jute Fiber-Reinforced Composite Resin as a Crewboat Building Material Mahadir Sirman; Henny Pasandang Nari; Syahrisal; Muhammad Arsyad Suyuti
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.13376

The maritime industry requires lightweight, strong, corrosion-resistant, and environmentally friendly materials, particularly for crewboat construction. Conventional metallic materials often suffer from corrosion, high weight, and elevated maintenance costs. This study investigates the mechanical performance of epoxy–jute fiber composite materials as a sustainable alternative for crewboat hull applications. Experimental laboratory testing was conducted using a quantitative approach to evaluate the tensile strength, flexural strength, impact resistance, and environmental durability of the composites. Specimens were fabricated using epoxy resin reinforced with jute fibers arranged in four different orientations (0°, 45°, 90°, and random) and tested according to ASTM standards. The results indicate that fiber orientation significantly influences mechanical properties. The 0° fiber orientation exhibited the highest tensile strength (89.04 MPa) and elongation (1.287%), indicating efficient load transfer and good ductility. The 45° orientation produced the highest flexural strength (39.14 MPa), while the random fiber orientation demonstrated the greatest elastic modulus (25.81 GPa) and impact resistance (6.409 kJ/m), providing superior stiffness and energy absorption. Seawater immersion tests showed no visible degradation in the composite structure. These findings suggest that epoxy–jute fiber composites have strong potential as eco-friendly crewboat construction materials, especially when applied using hybrid laminate configurations (0°/±45°/random) to optimize strength, stiffness, and impact resistance

Kesehatan Mental Kadet Maritim di Era Digital: Studi Netnografi Instagram dalam Konteks Amandemen BST- STCW 2026 Rosmawati; Oktavera Sulistiana; Feronika Sekar Puriningsih; Ludfi Pratiwi Bowo; Henny Pasandang Nari
JURNAL VENUS Vol. 14 No. 1 (2026): Maret
Publisher : PIP Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study aims to analyse the mental health needs and patterns of psychosocial support among maritime cadets in the digital era, particularly in anticipation of the 2026 amendment to the Standards of Training, Certification and Watchkeeping (STCW). A qualitative Netnographic approach was employed to analyse public Instagram content related to maritime cadets. Data were collected from 20 digital postings and processed using NVivo thematic coding analysis.The findings indicate that the dominant narrative within the digital ecosystem of maritime cadets is “appreciation and positive support,” representing 70% of all coded narratives. Notably, 68.6% of these supportive narratives originate from general internet users, suggesting that emotional validation is largely derived from public digital audiences. In contrast, narratives coded under “struggle” account for only 1.3% of total mentions, indicating possible impression management in social media environments.Digital support functions as a proxy protective factor against psychological pressure. However, the dominance of image-based validation may create a gap between public perception and actual psychological experiences. This study contributes to maritime mental health literature by positioning digital social support as a critical mediating variable and recommends that maritime institutions integrate authentic mental health support programs in preparation for upcoming STCW standards.

LNG-Based Decarbonization of Small-Scale Maritime Transport: A Technical and Economic Feasibility Study in North Kalimantan Henny Pasandang Nari; Yong Wong Kim; Mahadir Sirman; Romy Sumardiawan
Journal of Renewable Energy and Smart Device Vol. 3 No. 2 April 2026
Publisher : PT. Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/joresd.v3i2.700

Indonesia's vast natural gas reserves present a strategic opportunity to decarbonise its maritime sector, particularly in archipelagic regions such as North Kalimantan, where small wooden and fiberglass vessels rely on high-cost, high-emission diesel fuels, posing environmental and economic challenges. This study employed a mixed-methods approach, combining fuel consumption simulations with stakeholder surveys and interviews to evaluate the technical, economic, and policy feasibility of adopting liquefied natural gas (LNG) for non-conventional inter-island vessels. The technical analysis compared LNG and biodiesel performance on a Mitsubishi 89 kW marine engine regarding thermal efficiency, specific fuel consumption (SFC), and operational costs. Simulation results show that LNG-powered engines achieved 46.46% thermal efficiency and an SFC of 0.140 kg/kWh, compared to 33.85% and 0.1847 kg/kWh for biodiesel. An economic feasibility analysis across eight inter-island routes demonstrated fuel cost savings of 51–68% with LNG relative to biodiesel, with an estimated simple payback period of 3.2–4.5 years for dual-fuel engine retrofitting under baseline fuel price assumptions. Stakeholders acknowledged LNG's benefits but raised concerns about infrastructure limitations and regulatory readiness. This study concludes that LNG adoption for non-conventional vessels is economically and environmentally viable, particularly when aligned with Indonesia's broader energy transition strategies, and provides a scalable model for other archipelagic maritime regions seeking to reduce emissions and fuel dependency.

Co-Authors Abdul Basir Adnan Feronika Sekar Puriningsih Ludfi Pratiwi Bowo M. Iqbal Mukhsen Mahadir Sirman Muh. Syuaib Rahman Muhammad Arsyad Suyuti Oktavera Sulistiana Paulus Pongkessu Romy Sumardiawan Rosmawati Rusdi Nur Sukur Syahrisal Syahrisal Syahrisal Yong Wong Kim Yopie Pesulima

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