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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Teknik ITS Jurnal Pengabdian Pada Masyarakat Wave: Jurnal Ilmiah Teknologi Maritim Abdi Masyarakat G-Tech : Jurnal Teknologi Terapan ARIKA Jurnal Otoranpur
Ismail, Abdi
Universitas Pertahanan Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan

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Comparative Analysis of Taper and Taperless Blade Design for Ocean Wind Turbines in Ciheras Coastline, West Java Madi, Madi; Tuswan, Tuswan; Arirohman, Ilham Dwi; Ismail, Abdi
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.v18i1.32486

Abstract

The blade is the most critical part of turbine design because it is used to convert kinetic to mechanical energy. In general, the blade types used for ocean wind turbines are taper and taperless blades, like those operated at Ciheras Coastline. Previous research has been analyzed the type of airfoil used in designing taper blades for ocean wind turbines using NACA 4412, which was selected as the optimal foil configuration at sea wind speeds of 12 m/s. In this study, the comparison of taper and taperless blade designs using NACA 4412 at a wind speed of 12 m/s is analyzed. The comparative study with previous research has been carried out and resulted in the same graphical patterns and performance results. In this study, the focus is on investigating the performance coefficient of power, mechanical power, and electrical power. The final result shows that taper blade designs are highly recommended for use in ocean wind turbines compared to taperless blades. In general, the performance produced by taper blades is more significant than taperless blades at relatively high wind speeds. The maximum performance coefficient of power, mechanical power, and electrical power generated by the taper blades in sequent are 0.47, 1535 watts, and 786 watts, while the taperless blades have 0.44, 1437 watts, and 736 watts.
Proposed Quality Plan for Shipbuilding in Indonesia Based on ISO 10005:2018 Virliani, Putri; Rahadi, Shinta Johar Alif; Rina, Rina; Sari, Dian Purnama; Ismail, Abdi; Maruf, Buana; Bisri, Ahmad
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 3 (2023): October
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i3.58691

Abstract

Ensuring quality is of utmost importance for the shipbuilding sector, as it involves addressing both the quality of processes and the final products to achieve efficient and cost-effective manufacturing. It has become a standard practice for shipyards to adopt certifiable management systems. ISO 9001:2015 sets out the necessary criteria for a Quality Plan, which is influenced by the company's overall quality policy and contractual obligations. In this context, ISO 10005:2018 offers guidance that can be utilized within the framework of quality plans to meet the specific requirements of a project. Several quality plans for Indonesian shipyards, only adopting ISO 9001 and ISO 10005:2018, have yet to be widely implemented. Thus, this paper adopts ISO 10005:2018 to identify the quality plan of three selected shipyards in Indonesia. The gap analysis technique is used to compare the current state of the quality plan with the desired conditions outlined in the ISO 10005:2018 standard. The identified gaps will determine the areas that require immediate attention and improvement in order to meet the requirements of ISO 10005:2018. The primary objective of this study is to facilitate the creation of a quality plan that adheres to the ISO 9001 and 10005 standards. Based on the comparison results of quality plans according to ISO 10005:2018 in shipyards A, B, and C, the recommendation is to integrate distinct clauses (6.4, 6.7.1, 6.7.3, 6.10, 6.13, and 6.15) to improve the quality plans across these specific shipyards.
Co-Authors Achmad Zubaydi Ansori Ansori Ansori Ardan Nagra Coutsar Arirohman, Ilham Dwi Bisri, Ahmad Boy Bistolen Damianus Manesi Dedy Wahyudi Dery Septriandi Dian Purnamasari Elkana Lopo Ervan Panangian Fikri Indra Mualim Imanuel Tnunay Jemsy R. Rohi Madi Madi Maruf, Buana masrury priyono Mohd Zircham Al Syachri Muhamad Fathi Ilham Rahadi, Shinta Johar Alif Rina Rina Rizky Chandra Ariesta Rizky Chandra Ariesta Tuswan Tuswan Tuswan Tuswan Tuswan Virliani, Putri Yoyok Setyo Hadiwidodo Zakka Ruhma Zakky Al Mubaroq