10 research outputs found
Design Wireless Power Charging For Battery 12 Volts On Automatic Guided Vehicle
Get PDFIn this era, technology is getting more advanced and develop rapidly. Most of every created technology requires an electrical energy. Along the current technology development, power or electrical energy delivery can deliver through air without using a cable as in general. However on AGV (Automatic Guided Vehicle) technology, charging power transfer is still conventionally using cable. The purpose of this paper is to resolve the power transfer process so that become more efficient. By applying wireless charging technology, the charging process into AGV can be more efficient. A 220 V power source with 50 Hz frequency will be forwarded to the power supply which changes AC to DC then will be converted again to the inverter from DC to AC voltage forwarded directly to the primary coil through air delivery. The results that have been achieved in this paper is the amount of power delivered more than 6.75 watts with a frequency of 9 KHz. The optimal distance for sending power is 0 - 5 cm. So the distance on wireless charging greatly affects the quality of the power delivery process performed
PELATIHAN SISTEM PEMANTAUAN ENERGI CERDAS BERBASIS TEKNOLOGI IoT DI SEKOLAH MENENGAH KEJURUAN
Get PDFAbstrak: Dalam rangka menjamin ketersediaan energi dan menjaga kelestarian lingkungan, penerapan energi bersih dan berkelanjutan (sustainable) adalah isu yang sangat penting. Manajemen penggunaan energi yang efisien harus diperkenalkan kepada generasi muda sedini mungkin. Tujuan kegiatan ini adalah untuk meningkatkan pemahaman siswa mengenai teknologi pemantauan energi pintar dan kesadaran mereka tentang efisiensi energi. Metode kegiatan yang digunakan adalah penjelasan teori dan praktik perakitan sistem berbasiskan teknologi IoT. Peserta kegiatan ini adalah siswa menengah kejuruan Program Keahlian Teknik Instalasi Tenaga Listrik. Karenanya, materi pelatihan ini sangat lah penting untuk mendukung bidang keahlian mereka dalam dunia kerja nantinya. Sistem evaluasi yang digunakan adalah survei dengan 11 pertanyaan dalam bentuk angket yang diisi oleh para peserta di akhir sesi pelatihan. Berdasarkan hasil evaluasi, sekitar 89% peserta menyatakan "setuju" atau "sangat setuju" bahwa mereka senang dan berminat untuk mempelajari lebih lanjut tentang teknologi sistem pemantauan energi cerdas berbasiskan IoT. Dengan pelatihan ini, diharapkan tingkat kesadaran siswa menengah kejuruan mengenai efisiensi energi menggunakan sistem pemantauan energi pintar dapat meningkat sehingga mereka lebih siap menghadapi Revolusi Industri 4.0 pada dunia kerja nantinya.Abstract: To ensure energy availability and maintain environmental sustainability, the implementation of clean and sustainable energy is a crucial issue. Efficient energy management must be introduced and educated to the younger generation at the earliest possible period. The objective of this activity is to enhance students' understanding of smart energy monitoring technology and their awareness of energy efficiency. The methods used in this activity are theoretical explanations and practical sessions on assembling IoT systems. The participants of this activity were students from the Electrical Power Installation Vocational Program. The evaluation system employed was a survey with 11 questions, which participants completed at the end of the training. Based on the evaluation results, approximately 89% of participants stated that they "agreed" or "strongly agreed" that they were pleased and interested in learning more about Smart Energy Monitoring System based on IoT technology. It is hoped that this training will increase the awareness of the students regarding energy efficiency using smart energy monitoring systems, thus better preparing them to face the Industrial Revolution 4.0
Exploring Synergies: Tailoring Electrical Conductivity in Novel Corn Starch and Natural Rubber Polymer Composites through Varied Carbon Additives
Get PDFConductive polymer composites were synthesized using a crosslinking method, enhancing conductivity through the incorporation of carbon additives. Non-conductive natural polymers, corn starch, and natural rubber were blended with carboxymethyl cellulose (CMC) as a crosslinking agent, enhancing polymer bonding. CMC also served as a compatibilizer, improving corn starch properties. Glycerol acted as a plasticizer, enhancing flexibility and processability. Addition of carbon nanotube (CNT), graphite, and carbon foam yielded low-density materials, with carbon foam providing optimal porosity. The crystalline properties mirrored the added conductive carbon, while the chemical structure remained unchanged. At 0.1 Hz, electrical conductivity varied: 1.192 x 10-7 S.cm-1 (no carbon), 6.123 x 10-4 S.cm-1 (CNT), 7.656 x 10-4 S.cm-1 (graphite), and 3.134 x 10-2 S.cm-1 (carbon foam). Graphite incorporation demonstrated an electrical conductivity of 7.838 x 10-4 S.cm-1. The introduced carbon additives facilitated a conductive pathway in corn starch-based polymer composites, elevating material conductivity
Inverter using powerbank as power source with pure sine wave output
No full textThe current factory-generated inverters, typically use high power sources or energy sources, with a minimum input voltage of 12VDC, 24VDC, 48VDC with an effective voltage output of 220 VAC with a frequency of 50Hz/60Hz. These power sources are usually obtained from starting battery or deep-cycle battery. The problem of inverter currently that portable inverter using a low power source with a sine wave output is not available. So in this research conducted inverter design using power source/ energy source from powerbank 5 VDC 16000 mAh with 50 Hz 40 Vpp sine wave output. Inverter design method in this final project research based on simulation which used LTspice application. And in this inverter system, have been decided to using MOSFET as switching and using h-bridge as inverter topology, because MOSFET has high efficiency compared with BJT or J-FET. This final project research is expected to be an inverter using powerbank resources and become a portable inverter so in the future can be used for loads that require sinusoidal signals such as electric stoves, and can be used also for climbing purposes
Klasifikasi Sinyal Elektrokardiogram Menggunakan Renyi Entropy
Get PDFSinyal Elektrokardiogram (EKG) adalah salah satu indikator penting tentang aktivitas kelistrikan jantung. Sinyal ini dapat menjadi basis analisa kerja jantung sehingga menjadi penting. Sampai saat ini sinyal EKG tidak dapat digambarkan dengan persamaan matematis yang tepat karena sinyal EKG berulang tapi tidak tepat periodik. Untuk itu digunakan signal complexity untuk menjelaskan perilaku sinyal EKG.
Renyl entropy adalah salah satu matrik untuk menganalisa kompleksitas sinyal, dan merupakan bentuk umum dari entropy lain. Dengan demikian akurasi yang dihasilkan lebih tinggi. Pada penelitian ini menggunakan Renyi Entropy dihasilkan akurasi 100% untuk tiga kelas data EKG. Digunakan Support Vector Machine (SVM) linear, qubic, dan quadratic sebagai pembanding satu sama lain. Keunggulan metode ini adalah akurasi yang tinggi dengan menggunakan jumlah ciri yang jauh lebih sedikit
Development System for Reducing Fuel Consumption with Logarithmic Approach for Aperture Valve System on Throttle Body
No full textDecreasing of petroleum reserve and increasing of fossil fuel consumed lead to an energy crisis. To anticipate that case, it is required for the development of modified motor vehicles to optimize fuel consumption. A modification toward the valve on the throttle body regulating the mixed amount of the incoming gasoline and air into the combustion chamber can be an alternative solution of the case. By changing the valve aperture system which has initially been linier become logarithmic with the gas handle, make the mixture of incoming gasoline and air into the combustion chamber more efficient. In this research Motorcycle Carburettor 110 cc is used. The result of the research shows that the fuel consumption can be optimized to 37% lower consumption compared to normal mode
Development System for Reducing Fuel Consumption with Logarithmic Approach for Aperture Valve System on Throttle Body
No full textDecreasing of petroleum reserve and increasing of fossil fuel consumed lead to an energy crisis. To anticipate that case, it is required for the development of modified motor vehicles to optimize fuel consumption. A modification toward the valve on the throttle body regulating the mixed amount of the incoming gasoline and air into the combustion chamber can be an alternative solution of the case. By changing the valve aperture system which has initially been linier become logarithmic with the gas handle, make the mixture of incoming gasoline and air into the combustion chamber more efficient. In this research Motorcycle Carburettor 110 cc is used. The result of the research shows that the fuel consumption can be optimized to 37% lower consumption compared to normal mode
Design of Compact, Low-cost Electrochemical Electronic Reader (Potentiostat) for Chemical Compound Analysis
Get PDFThe development of low-cost electrochemical electronic reader (potentiostat) has been vastly growing recently since it could serve as a rapid chemical compound detection. Nevertheless, the realization of a low-cost potentiostat, having a compact size and providing multi-feature, is challenging. Here, a compact, low-cost potentiostat, supporting multi electrochemical methods was demonstrated. The total dimension was (10.8 x 4.6 x 3.5) cm3 with the weight of only 75.6 g. By using 16-bit analog-to-digital converter (ADC) and 12-bit digital-to-analog converter (DAC) components, the potentiostat facilitated a current input range of ±580 µA with a resolution of 23.5 nA and a voltage sweep range of ±1.5 V with a resolution of 800 µV. For the electrochemical measurement, it supported cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Furthermore, in comparison with a commercial potentiostat (Sensit Smart), the potentiostat showcased a good accuracy performance. In detail, the average relative accuracy of the CV method test was 91% and 95% for the anodic (Ianodic) and cathodic peak currents (Icathodic), respectively. For DPV method, the lowest relative accuracy of the peak current (Ipeak) was still 83%. These results demonstrated that our potentiostat could promisingly be utilized for chemical compound detection in low-cost setting or rural areas
