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Experimental Investigation of Bow Slamming on a Ship: The Effect of Weight and Impact Angle Baso, Suandar; Himaya, Andi Nadia; Samman, Faizal Arya; Anggriani, Andi Dian Eka; Rosmani, Rosmani
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 18, No 1 (2021): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v18i1.35663

Abstract

The impact pressure induced by slamming can imply physical damage on a ship. The high probability of the slamming impact is on the bow part in the actual sea state. In this present study, the slamming induced pressure on the bow flare of a ship have been investigated through the experiment. The experiment was schemed by the dropping test based on free-falling body in the wave tank, wherein the bow of the ship model was inclined in several impact angles 0° to 30° to the free-water surface. To measure slamming impact pressure acting on the bow flare, the piezoelectric sensors S1, S2, S3, S4 were attached to the bow section and installed on a computer. As the obtained results, the impact pressure on bow flare occurred in a short time duration caused by slamming. The discrepancy of the peak impact pressure between ship model weight of 2.42 kg and 7.29 kg for the impact angle 0° is 70.36% S1, 69.52% S2, 68.97% S3, and 68.34% S4. For the relative impact angle of 30°, the discrepancy is 67.02% S1, 65.73% S2, 58.51% S3, and 48.21% S4. The tendency of the peak pressure coefficient at the sequenced impact points S1, S2, S3, S4 is similar for all impact angles 0°, 10°, 20°, and 30°. The peak pressure coefficient due to the full load condition is highest in the nearest bottom part, and the peak pressure coefficients due to the lightship condition highest in the nearest bottom part caused by the small impact angle.
Pelatihan Pemeriksaan Instalasi Tenaga Listrik pada Tenaga Inspektur sesuai Kepmen DJK ESDM di PT. Rekayasa Daya Energi Salama Manjang; Ikhlas Kitta; Sri Mawar Said; Yusri Yusri; Faizal Arya Samman; Yustinus Sombolayuk; Indar C Gunadin; Gassing Gassing
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 4 No 1 (2021): Kesadaran Sosial dalam Memperkuat Kehidupan Masyarakat dalam Era Pandemi
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v4i1.156

Abstract

This community service activity aims to build a cooperative relationship between Electrical Engineering Department of Hasanuddin University and company partners in South Sulawesi. One of the company partners engaged in the engineering inspection agency, namely PT. Rekayasa Daya Energi, where some of partner problems are not having experts who have certificates of competence and experience as well as professional expertise in their respective fields, both as permanent and non-permanent experts as field inspectors to meet the requirements required by the Ministry of Energy and Mineral Resources, as the person in charge of Engineering and as a certified Electricity Engineering Personnel inspection in the field of electrical installations. For this reason, knowledge from inspectors is needed to master this field practically which requires a refresher on work competence in the field of electrical power installation inspection. This activity provides training, including inspection techniques for power plant installations, inspection techniques for substation installations and electric power transmission, inspection techniques for electric power distribution installations, and inspection techniques for electrical power utilization installations. The preparation process for the implementation of the training begins by coordinating with potential young workers who are coordinated by partners who are represented through a business entity, namely PT. Energy Engineering is related to the schedule, participants and materials to be given during the training. The implementation team then made several training modules in the form of softcopy as the main training material. Electricity installation inspection training was held for 1 (one) day on 3 September 2020, which was attended by 15 inspectors.
Pengenalan Panel Surya sebagai Salah Satu Sumber Energi Terbarukan untuk Pembelajaran di SMA Negeri 1 Takalar Fitriyanti Mayasari; Faizal Arya Samman; Zaenab Muslimin; Tajuddin Waris; Dewiani Dewiani; A. Ejah Umraeni Salam; Indar Chaerah Gunadin; Intan Sari Areni; Yusri Syam Akil; Ida Rachmaniar Sahali; Azran Budi Arief
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 5 No 2 (2022): Mengembangkan Kehiodupan Masyarakat melalui Kesatuan dan Kekuatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v5i2.271

Abstract

The rapid development of technology, the trend that leads to the green earth movement and the encouragement of the use of new and renewable energy (EBT) by the government, have become the basis for the importance of introducing small-scale EBT generation equipment to the society, especially to students. Solar energy is one the source of renewable energy that has considerable potential and is spread evenly in Indonesia. Solar Panels as the main component of Solar Power Plants (PLTS) have qualified and advanced technology. The application has been widely used by both industry and urban communities. This activity was carried out by the Department of Electrical Engineering Unhas to introduce solar panels as a source of EBT to high school students of SMA Negeri 1 Takalar, Pattalassang Subdistrict, Takalar Regency through outreach activities. By this activity, the students will have an understanding of the basic principles, components of small-scale PV and its latest technology. This activity also produces a small-scale PLTS module which will be given to SMA Negeri 1 Takalar, in order for continuous learning can be carried out. To measure the level of success of the activity, pre- and post-activity assessments were conducted in the form of a questionnaire to students with parameters related to the basic understanding of PLTS. The results of the quantitative analysis of the questionnaire showed an increase in the level of student understanding reaching 44-56% after the service activities were carried out. Therefore, this activity gives the expected results.