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All Journal Indonesian Journal of Chemical Analysis (IJCA) G-Tech : Jurnal Teknologi Terapan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering AEEJ : Journal of Automotive Engineering and Vocational Education Jurnal Techno Bahari Automotive Experiences Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Jurnal Teknik Kimia dan Lingkungan Journal Mechanical Engineering
Amin Jakfar, S.T.,M.T., Lukman Hadiwijaya, S.T.,M.T.
Politeknik Negeri Madura
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Penggunaan Saringan Sebagai Alat Untuk Membantu Mengurangi Kadar Merkuri Yang Tercemar Di Desa Debowae Kecamatan Waelata Kabupaten Buru Provinsi Maluku Alfiansa Umasugi; Erwin. B. Pattykayhattu; M. Said Karyani; Amin Jakfar
Journal Mechanical Engineering Vol. 1 No. 3 (2023): Desember
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i3.2100

Abstract

Gold mining activities on Buru Island legally or illegally cause water at several coordinate points to be contaminated with heavy metal types of mercury (Hg). Knowing the level of mercury in water is important to determine whether or not water can be consumed. This study aims to determine the level of mercury spread and how to overcome environmental damage due to mercury in water using eucalyptus charcoal. The method used in this study is quantitative by collecting data by observation, interviews, and literature studies. The variable in the study was filtering as a tool to reduce polluted mercury levels. The results of this study were carried out at 3 coordinates and 2 of the 3 coordinates showed a decrease in mercury levels, namely in the coodninat of the father's house, sub-district and village hall successively decreased by 18 μg / L and 2 μg / L. From the results it can be concluded that the level of mercury levels does not exceed the Quality standard figures placed according to the Ministry of Environment and Forestry No.Kep 51 of 2004 and eucalyptus charcoal can reduce mercury levels deposited in water. Based on the results of the research conducted, it turns out that there are still many shortcomings using this method. For future researchers who want to conduct similar research, in order to complement by answering the shortcomings of this study. Keywords: mercury, eucalyptus, filter
Rancang Bangun Turbin Kaplan Variasi Diameter Baling-Baling Untuk Menghasilkan Daya Listrik Amin Jakfar; Misbakhul Fatah; Auliana Diah Wilujeng
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 3 No 2 (2022): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v3i2.127

Abstract

Water energy can be used as a power plant by utilizing the available potential energy (waterfall potential and flow velocity). Today's energy needs are increasing along with the increase in population growth. Kaplan turbine is a turbine composed of propellers/turbine wheel blades such as ship propellers. The Kaplan turbine blades' length and width determine the Kaplan turbine's outer diameter. The outer diameter of the Kaplan turbine will influence the torque generated by the Kaplan turbine. The greater the torque produced, the greater the power obtained. Data collection was carried out to calculate power with five variations of the propeller's diameter, namely 21 cm, 24 cm, 25.8 cm, 27 cm, and 30 cm. s, 0.0133 m3/s, 0.0139 m3/s, and 0.0152 m3/s. The results of the Kaplan turbine test with variations in the blades' diameter and variations in the discharge obtained tremendous power at a diameter of 30 cm with a flow rate of 0.0152 m3/s. Tenaga air yang dalam bahasa Inggris “hydropower” adalah energi yang diperoleh dari air yang mengalir. Air merupakan sumber energi, karena pada air tersimpan energi potensial (pada air jatuh) dan energi kinetik (pada air mengalir). Energi air merupakan energi yang dapat dimanfaatkan sebagai energi pembangkit listrik. Pemanfaatan energi air banyak dilakukan dengan menggunakan turbin air. Turbin Kaplan adalah jenis turbin yang tersusun dari propeller/sudu-sudu roda turbin seperti Diameter luar turbin baling-baling kapal. Kaplan ditentukan oleh panjang dan lebar baling-baling turbin Kaplan. Torsi yang dihasilkan turbin Kaplan akan dipengaruhi oleh diameter luar turbin Kaplan. Semakin besar torsi yang dihasilkan maka semakin besar pula daya yang didapatkan. Untuk menghitung daya maka dilakukan pengambilan data dengan lima variasi diameter baling-baling yaitu 21 cm, 24 cm, 25.8cm, 27 cm, dan 30 cmdan variasi debit pada setiap diameter ada lima, yaitu 0,01 m3/s, 0,0116 m3/s, 0,0133 m3/s, 0,0139 m3/s, dan 0,0152 m3/s. Hasil pengujian turbin Kaplan variasi diameter baling-baling dan variasi debit didapatkan daya terbesar pada diameter 30 cm dengan debit 0,0152 m3/s.
Modifikasi Turbin Kaplan Dengan Variasi Draft Tube Untuk Menghasilkan Daya Listrik Amin Jakfar; Misbakhul Fatah; Ike Dayi Febriana
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 1 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i1.194

Abstract

Kaplan turbine manufacture has been tested with several variations, namely the diameter of the turbine blade, the angle of the turbine blade, and the angle of the Guide Vanes. However, the power generated is relatively small, namely 416,89 watt. This study aims to increase the power generated by Kaplan turbines. In this modification, a kaplan turbine will be made with a variation of draft tube with three different shapes, namely the type simple conical, simple elbow and elbow varying cross forms. The working principle is converting the potential energy of water into mechanical energy. The method used in this study is to vary the shape of the Draft Tube which can affect the performance of the kaplan turbine and the power it produces. The results from the kaplan turbine test obtained the highest rpm of 409 with a power of 426,16 watts on the simple conical type and the lowest rpm was 149 with a power of 54,79 watts on the simple elbow type. Dalam pembuatan turbin kaplan telah dilakukan pengujian dengan beberapa variasi yaitu diameter sudu tubin, sudut sudu turbin dan sudut guide vanes. Namun daya yang dihasilkan relatif kecil yaitu sebesar 416,89 watt. Penelitian ini bertujuan untuk meningkatkan daya yang dihasilkan dari turbin kaplan. Pada modifikasi ini akan dibuat turbin kaplan dengan variasi draft tube dengan tiga bentuk berbeda yaitu bentuk type simple conical, simple elbow dan elbow varying cross. Prinsip kerjanya mengubah energi potensial air menjadi energi mekanik. Metode yang digunakan dalam penelitian ini adalah memvariasi bentuk draft tube yang dapat mempengaruhi performa turbin kaplan dan daya yang dihasilkan. Hasil dari pengujian turbin kaplan didapatkan rpm tertinggi 409 dengan daya 426, 16 watt pada type simple conical dan rpm terendah 149 dengan daya 54,79 watt pada type simple elbow.
Penggunaan Saringan Sebagai Alat Untuk Membantu Mengurangi Kadar Merkuri Yang Tercemar Di Desa Debowae Kecamatan Waelata Kabupaten Buru Provinsi Maluku Alfiansa Umasugi; Erwin. B. Pattykayhattu; M. Said Karyani; Amin Jakfar
Journal Mechanical Engineering Vol. 1 No. 3 (2023): Journal Mechanical Engineering
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i3.2100

Abstract

Gold mining activities on Buru Island legally or illegally cause water at several coordinate points to be contaminated with heavy metal types of mercury (Hg). Knowing the level of mercury in water is important to determine whether or not water can be consumed. This study aims to determine the level of mercury spread and how to overcome environmental damage due to mercury in water using eucalyptus charcoal. The method used in this study is quantitative by collecting data by observation, interviews, and literature studies. The variable in the study was filtering as a tool to reduce polluted mercury levels. The results of this study were carried out at 3 coordinates and 2 of the 3 coordinates showed a decrease in mercury levels, namely in the coodninat of the father's house, sub-district and village hall successively decreased by 18 μg / L and 2 μg / L. From the results it can be concluded that the level of mercury levels does not exceed the Quality standard figures placed according to the Ministry of Environment and Forestry No.Kep 51 of 2004 and eucalyptus charcoal can reduce mercury levels deposited in water. Based on the results of the research conducted, it turns out that there are still many shortcomings using this method. For future researchers who want to conduct similar research, in order to complement by answering the shortcomings of this study. Keywords: mercury, eucalyptus, filter
Co-Authors Abdul Hamid Alfiansa Umasugi Anauta Lungiding Angga R ANAUTA LUNGIDING Risdianto Annafiyah Auliana Diah Wilujeng Didik Prasetyoko Dimas Aryo Wicaksono Eddy Harsono Erwin. B. Pattykayhattu Faizatur Rohmah Faizatur Rohmah Faizatur Rohmah Ghopal Ahmad Fachrudin Ida Ayu Putu Sri Widnyani Ike Dayi Febriana Ike Dayi Febriana Ike Dayi Febriana Ike Dayi Febriana Ike Dayi Febriana Ike Dayi Febriana Laily Ulfiyah Lukman Hadiwijaya M. Said Karyani Misbakhul Fatah Misbakhul Fatah Mohammad Abdullah Mohammad Anas Fikri Nadiyah Ulfah Ratna Ayu Dewi Sahari Saiful Saiful Saiful Saiful Septian Dwi Wijaya Septian Dwi Wijaya Sirly Bifadilatur Romaniyah Tri Esti Purbaningtias Zeni Rahmawati