DESAIN LINKAGE GUIDE VANE UNTUK MENGATUR ALIRAN AIR PADA TURBIN KAPLAN 6 SUDU RUNNER

ANDHIKA PRATAMA PUTRA, . (2023) DESAIN LINKAGE GUIDE VANE UNTUK MENGATUR ALIRAN AIR PADA TURBIN KAPLAN 6 SUDU RUNNER. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Turbin kaplan merupakan turbin air jenis reaksi beraliran aksial, beroperasi pada head yang rendah dengan kapasitas aliran air yang tinggi atau bahkan dapat beroperasi pada kapasitas aliran air yang sangat rendah. Turbin kaplan memiliki sudu runner yang dapat diatur dan sudu pengarah (guide vane) yang dapat diatur untuk mengontrol aliran air ke runner blade di turbin kaplan untuk mendapatkan daya maksimum, mengatur aliran air, dan menghentikan aliran air. Tujuan dari penelitian ini untuk mendapatkan desain linkage guide vane yang optimal untuk turbin kaplan 6 sudu runner dan mendapatkan nilai gaya dorong yang terjadi dari aliran air ketika guide vane dibuka 20%, 40%, 60%, 80%, 100%. Penelitian ini dimulai dari studi literatur, preliminary desain untuk mendapatkan nilai gaya-gaya yang terjadi dan ukuran minimum, pembuatan desain 2D dengan software AutoCAD, pembuatan desain 3D menggunakan AutoDesk Inventor, meshing yang dilakukan secara otomatis, pemberian kondisi batas, pembebanan dan material lalu melakukan stress simulation menggunakan Autodesk Inventor dan flow simulation menggunakan SolidWorks pada spiral case ketika guide vane tertutup, terbuka 20%, 40%, 60%, 80%, 100%. Dari hasil simulasi, didapatkan bahwa desain mekanisme linkage guide vane ini mampu membuka dan menutup guide vane serta didapatkan nilai Safety factor minimum 4,02ul, gaya dorong terbesar yang dihasilkan yaitu 150,318 N ketika guide vane terbuka 20% dari posisi tertutupnya dan gaya dorong terkecil yang dihasilkan yaitu 96,9924 N ketika guide vane terbuka 100%. Desain ini layak karena telah melebihi nilai safety factor yang 4ul dan dapat mengatur aliran air dengan mengatur terbukanya guide vane. ***** The Kaplan turbine is a type of reaction turbine that operates with low head and high water flow capacity, and can even operate with very low water flow rates. The Kaplan turbine has adjustable runner blades and adjustable guide vanes to control the water flow to the runner blades in the turbine, in order to obtain maximum power, regulate the water flow, and stop the water flow. The objective of this research is to obtain an optimal design of the linkage guide vanes for a 6-blade Kaplan turbine and determine the thrust force values generated by the water flow when the guide vanes are opened at 20%, 40%, 60%, 80% and 100%. The research begins with a literature review and preliminary design to determine the forces and minimum dimensions, followed by the creation of a 2D design using AutoCAD software. A 3D design is then developed using AutoDesk Inventor, with automatic meshing, boundary conditions, loading, and material properties. Stress simulation is conducted using Autodesk Inventor, while flow simulation is performed using SolidWorks on the spiral case when the guide vanes are closed and opened at 20%, 40%, 60%, 80% and 100%. From the simulation results, it is found that this linkage guide vane mechanism design is capable of opening and closing the guide vanes. The minimum safety factor obtained is 4.02ul, and the maximum thrust force generated is 150.318 N when the guide vanes are opened at 20% from the closed position. The minimum thrust force obtained is 96.9924 N when the guide vanes are opened at 100%. This design is deemed feasible as it exceeds the minimum safety factor requirement of 4ul and allows for control of the water flow by adjusting the opening of the guide vanes.

Item Type: Thesis (Sarjana)
Additional Information: 1). Drs. H. Sirojuddin, M.T. ; 2). Dr. Ragil Sukarno, M.T.
Subjects: Teknologi dan Ilmu Terapan > Teknik Mesin, Mekanika Teknik
Divisions: FT > S1 Pendidikan Teknik Mesin
Depositing User: Users 18665 not found.
Date Deposited: 22 Aug 2023 01:50
Last Modified: 22 Aug 2023 01:50
URI: http://repository.unj.ac.id/id/eprint/39351

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