Analisis Struktur Terhadap Beban Dinamik pada Pembangkit Listrik Tenaga Hidrokinetik (PLTHk) di PT. PJB UP Paiton

Laksono, Hadi Cahyo (2022) Analisis Struktur Terhadap Beban Dinamik pada Pembangkit Listrik Tenaga Hidrokinetik (PLTHk) di PT. PJB UP Paiton. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Teknologi turbin hidrokinetik masih dalam pengembangan. Salah satu faktor yang berperan penting dalam pengembangan adalah keandalan turbin hidrokinetik. Pada penelitian ini variasi yang digunakan memperhatikan bentuk geometri yang digunakan, material pada foil turbin serta kecepatan pembebanan yang digunakan di Pembangkit Listrik Tenaga Hidrokinetik (PLTHk) di PT. PJB Paiton. Terdapat 3 variasi material yaitu baja ASTM A36, Stainless Steel SS316 dan Fiberglass type E serta 3 variasi geometri turbin yang perbedaannya pada penambahan penguat dalam struktur geometri turbin. Dari hasil analisis tentang pengaruh perubahan geometri dan material foil dengan 2 variasi pembebanan dinamis dilakukan melalui simulasi structural transient. Simulasi geometri tanpa penguat untuk memiliki deformasi sumbu Y tertinggi sebesar 475,35 mm untuk material fiberglass type E dengan kecepatan pembebanan 1 m/s di bagian foil, sementara geometri dengan penguat lengan tengah memiliki tegangan von mises tertinggi sebesar 2769,1 MPa untuk material baja ASTM A36 dengan pembebanan 1,5 m/s di bagian lengan. Geometri dengan penguat lengan tengah dan penegar bracket memiliki deformasi sumbu Y dan tegangan von mises terendah sebesar 2061,9 MPa. Variasi material baja ASTM A36 memiliki nilai tegangan von mises dan deformasi terhadap sumbu y lebih tinggi dibandingkan Stainless Steel SS316 karena perbedaan young modulus. safety factor dan lifes daerah yang paling riskan mengalami kegagalan dan mendapat tegangan von mises tertinggi di bagian penegar dan daerah sambungan antara foil dan lengan ================================================================================================ Hydrokinetic turbine technology is still under development. One of the factors that play an important role in the development is the reliability of the hydrokinetic turbine. In this study, the variations used pay attention to the geometric shape used, the material on the turbine foil and the loading speed used in the Hydrokinetic Power Plant (PLTHk) at PT. PJB Paiton. There are 3 variations of the material, namely Structural Steel ASTM A36, Stainless Steel SS316 and Fiberglass type E and 3 variations of turbine geometry, the difference being the addition of reinforcement in the turbine geometry structure. From the results of the analysis on the effect of changes in geometry and foil material with 2 variations of dynamic loading, it is carried out through transient structural simulations. Simulation of geometry 1 to have the highest Y-axis deformation of 475.35 mm for type E fiberglass material with a loading speed of 1 m/s in the foil section, while geometry 2 has the highest von mises stress of 2769.1 MPa for Structural Steel ASTM A36 material with a loading of 1 ,5 m/s at the arm. Geometry 3 has a Y-axis deformation and the lowest von mises stress is 2061.9 MPa. Variation of Structural Steel ASTM A36 material has higher von mises stress value and deformation on the Y axis than Stainless Steel SS316 due to the difference in young modulus. safety factor and lifes are the areas most at risk of failure and get the highest von mises stress in the stiffener and the connection area between the foil and the sleeve

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Baja ASTM A36, Fiberglass Type E, Lifestime Fatigue, Safety Factor, Stainless Steel SS316, Turbin Hidrokinetik, Hydrokinetic Turbine, Lifestime Fatigue, Structural Steel ASTM A36
Subjects: T Technology > T Technology (General) > T57.62 Simulation
T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TA Engineering (General). Civil engineering (General) > TA418.38 Materials--Fatigue.
T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Hadi Cahyo Laksono
Date Deposited: 17 Feb 2022 09:27
Last Modified: 17 Feb 2022 09:27
URI: https://repository.its.ac.id/id/eprint/94515

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