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Journal : international journal of science and environment

Troubleshooting Analysis of the Gandroom Cooling System on the KM. Lambelu Taufiqul Hakim, Rifqi; Edy Kristiyono, Antonius; Dai Robbi, Shofa; Retno Gunarti, Monika; Novitasari
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.452

Abstract

The ship's refrigeration system is crucial for the preservation of crew food during the voyage, but a failure on KM. Lambelu resulted in temperatures of only -5°C (fish) and -6°C (meat) versus the target of -18°C. This study aims to analyze troubleshooting using mixed methods convergent parallel with FMEA for RPN, repair impact, and post-replacement evaluation of the compressor. The population is KM. Lambelu's engineering officers, a purposive sample of 30 respondents. Instruments are Likert questionnaires (S, O, D), logbooks, photographs; validity/reliability test analysis, RPN = S × O × D, qualitative reduction. The results show the highest RPN 50 compressor, replacement restores pull-down from 25°C to -23°C. Conclusion: replacement effectively restores optimal function, prioritize preventive inspections.
Analysis of Fuel Consumption Variation of the 8dkm-28e Main Engine at Stable Performance of 620 RPM in the MV. Tanto Keluarga Nourman Viqry Dwinanda; Agus Prawoto; Shofa Dai Robbi; Monika Retno Gunarti; Novitasari
International Journal of Science and Environment (IJSE) Vol. 6 No. 2 (2026): May 2026
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i2.490

Abstract

This study examines the variation of Heavy Fuel Oil (HFO) fuel consumption of the DAIHATSU 8DKM28e Main Engine at a stable performance condition of 620 RPM on the container ship MV. Tanto Keluarga, amidst the pressure of increasing fuel costs and regulations on maritime efficiency and decarbonization. The study uses a descriptive quantitative approach with a population of all main engine operational data during a certain voyage period and a sample of 5 sheets of Noon Report At Sea at a stable voyage condition in the open sea. The main instrument is the daily noon report that records the main engine speed, turbocharger speed, fuel rack, HFO consumption, and weather and sea conditions, plus ship technical documents and academic literature as secondary instruments. The data analysis technique used is descriptive quantitative analysis, with the calculation of averages, ranges, and trends as well as simple correlation examinations between performance parameters. The results show that HFO consumption varies up to approximately 1,005 liters per day at a relatively stable RPM, with a pattern closely related to changes in fuel rack, turbocharger speed, and sea state and weather conditions. The findings support that the main engine performance condition at 620 RPM is in dynamic equilibrium, so that fuel efficiency assessment needs to integrate internal and external factors simultaneously to support operational management, OPEX reduction, and compatibility with IMO EEXI and CII regulations.
Co-Authors Abomoelak, Bassam Adel Paila Adiprabowo, Vani Dias Afandi, Yosi Agus Prawoto Agustina, Hiqma Nur Ahmad Nur Kholis Ahmad Taufik Ahmad Yudianto Akila, Kesa Alan Su'ud Ma'adi Ali Rokhman Al’Inayah, Amalia Ayu Andi Aulia Raodatul Husna Andi Bau Mallarangeng Andre Pratama Sitepu Ane Fany Novitasari Angga Nugraha Anndy Prastya Annisa Nurul Islami Anwar, Agus Saeful Ardian Wahyu Setiawan Arfinda, Dhea Arief, Muhamad Asmala Sabrina Aulia, Miftahul Ayu Dwi Putri Rusman Azzein, Muhammad Haris Badriah, Eneng Huzaematul Baso Anugrah Hasanuddin Candrika Citra Charenina Tsabitha Amanda Chintya Dewi Chonitatun Nisak Dai Robbi, Shofa Darlan Sidik Delfitriani Desi Apriyanti Devi Andriani Dhea Amanda Rowandita Dian mentari putri Dinda Aldila Dini Ayuning Ratri Sukimin Dwi Koernia Putri Edy Herianto Edy Kristiyono, Antonius Eka Diah Kartiningrum Ekowati, Lia Elisa Mayang Sari Etty Zuliawati Zed Faizati umu Aimanah Fareza Januwarti Fitriana Amelia Fitriyanti, Anisa Hamdan Hidayat Hanur, Binti Suaidah Hendriani, Rahmat Jayannor Hetty Rohayani Holdani Kurdi I Made Budiarsa I Nengah Kundera Ihsan Syah Putra Ikhsan Maulana Indah Riezky Pratiwi Irayani, Surya Irianto Irwan Mariyadi Isnaini Nur Safitri Iwan Satriyo Nugroho Jefferson Lynford Declan Johny Aninam Juliati Juninta, Tania Kamaliah, Nur KHOIRUNNISA Khumaidi Kurniawansyah, Edy Kurniawansyah, Kevin Lesmana, Hans Listiawati, Rodiana Luhjingga Panasari Urbaningrum Lulu Hafizah M Asraf Fradama M. Ismail Makmur, Andi Dadi Mashuri Manap Trianto Marbun, Jhony Marieska Lupikawaty Marthiawati, Noneng Mas'ud, M. Imron Mekar Meilisa Amalia Melisa Fitri Meri Padila Mia Rasmiaty Monik, Della Tiara Monika Retno Gunarti Mubarak, Muhammad Fathul Muh Bayu Aprilia Chandra Muhamad Arief Muhammad Irfan Hakim Muhammad Maulana Muhammad Sofwan Muktiningsih Nurjayadi Mulyono Nabila Syafira Nailia, Nur Nawang Anggi Nefianto, Tirton Neneng Gantini Neti Erlina Nira Andayani Noor Anisa Septiana Nourman Viqry Dwinanda Nugrahaningtyas Fatma Anyassari Nur Azlina Nurfansyah Nursyamsi Hamza Prahasti Suyaman Pritantina Yuni Lestari Puteri, Made Widya Wirayanti Putri, Gladys Indira Ramadhani, Arie Ramadhani, Muhammad Aulia Ratnasari Retno Gunarti, Monika Ria Arafiah Riana T. Mangesa Rini Susanti Riris Lawitta Riris Lawitta, Riris Lawitta Riris Risdalina Rochman, Chaerul Rodiana Listiawati, Rodiana Rohil Firdaus Roudhotul Jannah Ruswandi, Riki Saadah Yuliana Saamia, Vira Sabrina Fania Saefuloh Salsabila Al Muniroh Sampir Andrean Sukoco Samsurizal, M. Sulaeman Septa, Badai Setia Budhi Shinta Trimulya Shofa Dai Robbi Sholihah, Izzatus Sigit Wibowo Sintia Hepi Andini Sirlia Salsabila Bren Sitanaya, Rini Siti Aisyah SITI FATIMAH Siti Kusnul Khatimah Sitti Amelia Sri Harmuli Suhel Sulaeman Sunaka, I Wayan Sutandar, Vivi Hendra Tata Wijayanta Taufiqul Hakim, Rifqi Ulfa Ramadhani Usman Usman Vidya Ramadhan Putra Pratama Vidyasari, Rahmanita Wahyu Perdana Yanik Lailinas Sakinah Yunita Adriani Zaikar Faisal Zuhal Azzamul A'la Zulaikhah Dwi Jayanti