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19 results on '"Huda, Saiful"'

2. Prediction of Aerodynamics Coefficients of Modified NACA 4415 Airfoil Using Computational Fluid Dynamics

Author

Sudarsono, Huda Saiful, and Rusianto Toto

Subjects
Environmental sciences, GE1-350
Abstract

The aim of the resent work is to predict the aerodynamic performance of modified NACA 4415 airfoil using computational fluid dynamics modelling. The performance is compared to that of NACA 4415 Standard. The simulation is performed using FLUENT with the variables of freestream velocity (i.e. 3, 4, 5, and 18 m/s) and angle of attacks (i.e. -12°, -10°, -8°, -6°, 0°, 6°, 12°, 14°, 16°, 18°, and 20°). The results indicate that the modified NACA 4415 airfoil has better lift and momentum coefficient. The value of lift coefficient of modified NACA 4415 is relatively higher than NACA 4415, especially at -12° < α

Published
2020
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4. Performance of Axial Generator for a Small Vertical Axis Wind Turbine.

Author

Rusianto, Toto, Huda, Saiful, Sudarsono, and Suyanto, Muhammad

Subjects
VERTICAL axis wind turbines, ELECTROMAGNETS, STREET lighting, WIND turbines, PERMANENT magnets, COPPER wire
Abstract

This paper presents an investigation of an axial generator for a small vertical-axis wind turbine. The performance of the axial generator design is tested by knowing the output voltage produced by varying the rotation. The generator is designed to generate three phases of electric power. And then through the wind turbine controller, three phases of alternating current are converted into direct current/DC. The Axial generator uses neodymium permanent magnets with many winding poles of 12 pieces. The coil uses 0.5 mm diameter copper enamel wire with a total of 400 turns each. A voltage of 30 Volt DC is obtained for the rotation of the axial generator at 300 rpm. For application, the generator can be used for a small vertical-axis wind turbine for stand-alone street lighting, which needs only 12 Volt of DC. [ABSTRACT FROM AUTHOR]

Published
2023
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18. Pengembangan bahan ajar praktikum mikrokontroler dengan menggunakan bahasa pemrograman C berbasis perangkat lunak simulator / Saiful Huda

Author

Huda, Saiful and Huda, Saiful

Abstract

Huda. Saiful. 2013. Pengembangan Bahan Ajar Praktikum Mikrokontroler Dengan Menggunakan Bahasa pemograman C Berbasis perangkat lunak simulator. Skripsi. Jurusan TeknikElektro Fakultas Teknik Universitas Negeri Malang. Pembimbing (I) Tri Atmadji S. M.Pd. (II) Dyah Lestari S.T. M.Eng. Kata Kunci pengembangan bahan ajar praktikum mikrokontroler bahasa pemograman C Simulator. Mikrokontroler merupakan salah satu pokok bahasan wajib bagi peserta didik dengan program keahlian Mekatronika khususnya di SMKN 8 Malang. Peserta didik dituntut untuk mempelajari dan memahami mikrokontroler. Namun kenyataan yang ada berdasarkan observasi selama PPL banyak siswa yang merasa mikrokontroler merupakan pokok bahasan yang cukup rumit.Salah satu penyebab cukup rumitnya materi mikrokontroler tersebut adalah bahan ajar yang digunakan di SMKN 8 masih belum lengkap dan berdampak pada penguasaan materi mikrokontroler. Terutama bahasan tentang aplikasi Bahasa pemograman C untuk pemograman mikrokontroler. Bahan ajar berupa hand out jobsheet dan trainer sangat di perlukan bagi peserta didik. Setiap peserta didik diharuskan memiliki bahan ajar agar dapat digunakan belajar secara mandiri di rumah. Menjadi salah satu penunjang bagi siswa untuk mendapatkan informasi secara lengkap sebagai sumber belajar dengan tujuan agar peserta didik dapat berhasil dalam penguasaan materi mikrokontroler dan juga agar semua praktikum mikrokontroler dapat terlaksana. Dengan melihat kenyataan tersebut perlu dirancang bahan ajar beserta trainer praktikum mikrokontroler. Agar pembelajaran dikelas berlangsung secara aktif dan efektif. Penelitian ini dilaksanakan dengan tujuan yaitu (1) Menghasilkan bahan ajar praktikum mikrokontroler ATmega 8535 yang berupa (a) buku ajar (hand out) (b) lembar kerja (jobsheet) (c) trainer (2) Menguji kelayakan bahan ajar yang berupa hand out jobsheet dan trainer. Model pengembangan trainer ini mengadaptasi model pengembangan Sugiyono ( 2008 298). Model pegembangan ini terdiri dari 10 tah

Published
2014

19. Composite with Aren Fiber (Waste of Starch Fiber) as an Insulator and Sound Reducer

Author

Sudarsono, Huda, Saiful, Yuniwati, Murni, and Purnawan

Abstract

In this research, waste of Aren fiber is utilized for raw material of composite. This aren fiber composite is used for insulator and sound absorber. The Aren composite is manufactured by pressing technique of mixture of aren, resin and hardener occur for 24 hours. The composites made from aren composite are tested in term of thermal conductivity and ability of sound absorber. The research aims to study an effect of resin to fiber ratio, size of Aren fiber to thermal conductivity, and sound absorber ability of aren composite material. The result shows that the optimum thermal conductivity of Aren composite is found to be 0, 3950 kcal/m h0C. This composite is obtained with resin-fiber ratio of 7:1, fiber length of 1 cm, 10% hardener, and pressure of 70 kg/mm2. Meanwhile, for optimum sound absorber composite is obtained with resin-fiber ratio of 6:1, fiber length of 2 cm, 10% hardener, and pressure of 70 kg/mm2. The composite has noice reduction of 40,1 dB and transmission loss of 46,1 at frequency of 500 Hz.

Published
2015
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