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All Journal Jurnal Kimia dan Kemasan Jurnal Hasil Penelitian Industri Journal of Robotics and Control (JRC) JURNAL REKAYASA KIMIA & LINGKUNGAN
Ratno Nuryadi
Pusat Teknologi Material, BPPT BPPT Gedung II Lt. 22. Jl. M.H. Thamrin No. 8 Jakarta 10340
Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Mechanical Engineering

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FABRIKASI SEL SURYA TERSENSITASI ZAT WARNA BERBASIS SEMIKONDUKTOR TiO2 DENGAN METODE ELEKTROFORESIS (Fabrication of Dye Sensitized Solar Cell with TiO2 Semiconductor Material Base Using Electrophoresis Method) Nuryadi, Ratno; Aprilia, Lia; Akbar Junior, Zico Alaia
Jurnal Hasil Penelitian Industri Vol 25, No 1 (2012)
Publisher : Baristand Industri Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.353 KB)

Abstract

Pada riset ini, fabrikasi sel surya tersensitasi zat warna (dye sensitized solarcell, DSSC) dilakukan dengan menggunakan bahan semikonduktor TiO2 dan dye (zatwarna) eosin Y. Metode elektroforesis digunakan dalam pembuatan lapisan tipis TiO2.Pada persiapan larutan elektroforesis, nilai zeta potensial partikel TiO2 diatur dengancara menambahkan garam Mg(NO3)2 pada larutan TiO2 isopropanol. Nilai zeta potensialoptimum untuk memperoleh larutan TiO2 yang stabil didapatkan dengan penambahankonsentrasi garam sebesar 1x10-5 M. Dengan metode elektroforesis, ketebalan lapisanTiO2 dapat diatur dengan cara mengubah besar tegangan elektroforesis dan waktudeposisi. DSSC dengan variasi ketebalan lapisan TiO2 dibuat untuk melihat pengaruhlapisan TiO2 terhadap tegangan open circuit (Voc) DSSC yang dihasilkan. Ketebalanoptimal yang didapatkan adalah 7,5 mikrometer, yang diperoleh dengan waktu deposisielektroforesis 6 menit, dan menghasilkan Voc 210 mVolt di bawah sinar lampu halogen.Didapatkan juga bahwa penggunaan ukuran kristal TiO2 yang lebih kecil akanmemperbesar nilai Voc yang dihasilkan. Hasil riset ini menunjukan bahwa metodeelektroforesis efektif digunakan untuk pelapisan TiO2 dalam fabrikasi DSSC
Preparasi Lapisan Hidroksiapatit pada Substrat Stainless Steel 316 dengan Metode Deposisi Elektroforesis Aprilia, Lia; Nuryadi, Ratno; Rianti, Winda; Gustiono, Dwi; Herdianto, Nendar
Jurnal Kimia dan Kemasan Vol. 32 No. 2 Oktober 2010
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (404.885 KB) | DOI: 10.24817/jkk.v32i2.2729

Abstract

Hidroksiapatit (HA) sangat berpotensi untuk digunakan dalam implantasi jaringan keras. Makalah ini memaparkan pelapisan HA pada substrat stainless steel 316 untuk meningkatkan sifat mekanis HA dengan menggunakan metode deposisi elektroforesis. Pengaruh tiga parameter yaitu variasi waktu deposisi (15 menit dan 60 menit), kehalusan permukaan (600 grit dan 1200 grit), dan suhu sintering (800 oC, 900 oC, 1000 oC, dan 1200  oC) terhadap lapisan HA diamati. Hasil penelitian menunjukkan bahwa pelapisan HA pada substrat SS 316 lebih tebal pada waktu deposit 60 menit, dengan hasil padat dan homogen didapatkan pada kondisi permukaan substrat yang telah diamplas dengan kertas silikon karbida 1200 grit dan suhu sintering 900  oC. 
Model Predictive Control in Hardware in the Loop Simulation for the OnBoard Attitude Determination Control System Irwanto, Herma Yudhi; Yusgiantoro, Purnomo; Sahabuddin, Zainal Abidin; Bura, Romie O.; Artono, Endro; Hakim, Arif Nur; Nuryadi, Ratno; Andiarti, Rika; Mariani, Lilis
Journal of Robotics and Control (JRC) Vol 5, No 2 (2024)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.v5i2.21613

Abstract

Rocket flight tests invariably serve a purpose, one of which involves area monitoring or aerial photography. Consequently, the rocket necessitates the installation of a camera that remains consistently oriented toward the Earth's surface throughout its trajectory. Thus, ensuring the rocket's stability and preventing any rotation becomes imperative. To achieve this, the Onboard Attitude Determination Control System (OADCS) was researched and developed, fully controlled by NI myRIO with Labview as the programming language, ensures the rocket's attitude control and maintains a rolling angle of 0 degrees during flight. The MyRIO oversees the retrieval of attitude and position data from the X-Plane flight simulator, offering feedback through actuator control. The development of the OADCS proceeded incrementally through stages utilizing the Software in the Loop Simulation (SILS) and Hardware in the Loop Simulation (HILS) techniques, to ensure the verification of the system's functionality before its application to the rocket for real flight testing. In the OADCS control scheme, Model Predictive Control (MPC) is chosen, and it is compared with a PID controller to serve as a benchmark for processing speed. Because the rocket's flight time is short and its speeds of up to Mach 4. The simulation results indicate that MPC can halt the rocket's rotation 12 times more rapidly than PID control. Additionally, the MPC's ability to maintain a zero-degree rotation can persist throughout the rocket's flight time. Employing SILS and HILS enhances the OADCS rocket development process by incorporating MPC, which holds promise for application in real rockets.
Efek Adsorpsi Dye ke dalam Lapisan TiO2 dengan Metode Elektroforesis : DSSC Berbasis Lapisan TiO2 Terbuat dengan Metode Slip Casting dan Metode Elektroforesis Nuryadi, Ratno
Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

This research aims to investigate the effect of dye adsorption into TiO2 layer in dye sensitized solar cell (DSSC), which the TiO2 layer is formed by slip casting and electrophoresis methods. Adsorption process of the dye into the cavities of the TiO2 layer was conducted by electrophoresis technique. As results, two DSSCs prepared by the slip casting and electrophoresis methods were successfully realized and tested. In case of DSSC based on electrophoresis method, XRD results show the appearance of MgO on TiO2 layer, which is probably caused by the addition of salt Mg(NO3)2 in the electrophoresis solution. Therefore, electrophoresis condition without the addition of salt needs to be investigated in the next research. It is found that the electrophoresis method can be used in the process of dye adsorption into the TiO2 layer. The electrophoresis with larger voltage results in the larger DSSC output. It is also seen that open circuit voltage for the slip casting-based DSSC is found to be greater than that for the electrophoresis-based one. This may be due to the larger size of the pores in TiO2 layer for the slip casting process compared to that for the electrophoresis process. For larger size of the pores, the dye can easily fit into the pores with the help of electrophoresis.Keywords: Dye-sensitized solar cell, Dye adsorption, Electrophoresis, Slip casting
Co-Authors Andiarti, Rika Aprilia, Lia Arief Udhiarto Artono, Endro Bura, Romie O. Djoko Hartanto Gustiono, Dwi Hakim, Arif Nur Herdianto, Nendar Irwanto, Herma Yudhi Lia Aprilia Lilis Mariani, Lilis Mohammad Ali Tamam Rianti, Winda Yusgiantoro, Purnomo Zainal Abidin Sahabuddin, Zainal Abidin Zico Alaia Akbar Junior