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Effect of variations in blade width on vertical shaft kinetic water turbine power Yani, Ahmad; Ratnawati, Ratnawati; Anoi, Yano Hurung; Patabang, Yonatan; Risaldi, Risaldi; Zulkifli, Zulkifli
International Journal of Multidisciplinary Approach Research and Science Том 1 № 03 (2023): International Journal of Multidisciplinary Approach Research and Science
Publisher : PT. Riset Press International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59653/ijmars.v1i03.224

Abstract

Various studies and observations have been carried out to produce a turbine design that suits the needs and the relatively low flow speed is a challenge that currently still requires further research. ThereforeThe aim of this research is to determine the effect of variations in the width of the bowl blade on the vertical shaft kinetic water turbine power.The research method used is an experimental method with an experimental design on a laboratory scale. Tests were carried out on three variations of blade width, from the results of the study it can be concluded that increasing the water flow rate, turbine rotation, and the ratio of tangential speed to the turbine blade width can increase the kinetic water turbine power. In this study, variations in blade width were 10 cm, 11 cm, and 12 cm. Increasing turbine blade sheets increased turbine power due to the additional mass of the flow hitting the turbine blades thereby affecting the kinetic water turbine power. Analysis of the water flow rate shows that the maximum turbine power occurs at a blade width of 12 cm and a discharge of 0.017 m3/second with a turbine power value of 25.455 Watt. Analysis of turbine rotation, Maximum turbine power occurs at a blade width of 12 cm and rotation of 80 rpm with a turbine power value of 23,864 Watts. Meanwhile, analysis of the tangential speed ratio shows that the maximum turbine power occurs at a blade width of 12 cm and at a tangential speed ratio of 0.5 rad/s2 with a turbine power value of 23,864 Watts. Keywords: Blade width, power, kinetic turbine, vertical shaft.
PELATIHAN PENINGKATAN KOMPETENSI PRA UJI KOMPETENSI KEJURUAN (UKK) JURUSAN TEKNIK OTOMOTIF KEPADA SISWA SMK RIGOMASI BONTANG Yani, Ahmad; Anoi, Yano Hurung; Triyatno, Joko
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 3 No 2 (2020): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v3i2.2801

Abstract

Pengabdian Masyarakat merupakan salah satu dari Tridharma Perguruan Tinggi yang wajib dilakukan oleh dosen. Uji Kompetensi Keahlian (UKK) adalah bagian dari intervensi Pemerintah dalam menjamin mutu pendidikan pada satuan pendidikan Sekolah Menengah Kejuruan. Pelaksanaan UKK bertujuan untuk mengukur pencapaian kompetensi siswa pada level tertentu sesuai kompetensi Keahlian yang ditempuh selama masa pembelajaran di SMK. Tujuan kegiatan pengabdian masyarakat ini adalah untuk mendukung persiapan siswa SMK Rigomasi pada Ujian Kompetensi Keahlian teknik otomotif yang setiap tahun diadakan dan meningkatkan pencapaian kompetensi siswa SMK Rigomasi. Berdasarkan hasil kegiatan dan pembahasan bahwa terdapat peningkatan pengetahuan dan keahlian tune up dan perbaikan engine management system yang cukup signifikan setelah melewati pelatihan yang ditandai dengan hasil perbandingan antara nilai pretest dengan post test. Dari hasil pengolahan data dapat disimpulkan bahwa nilai ujian post test maksimum sebesar 8,97.