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Pemodelan Hydro-Pump Storage Bertenaga Gelombang Laut Menggunakan Simulink rizki pratama putra
KILAT Vol 9 No 2 (2020): KILAT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/kilat.v9i2.1081

Abstract

Intermittency problem of wave power energy converter becomes a disadvantage when integrated into a power system, same with another renewable energy plant. In this paper, a method is proposed to solve the intermittency problem of wave energy converter when integrated into a small power system or in standalone mode. The main idea is to integrate a small pumped hydro system to the wave energy converter which the mechanical energy from wave converted to fluid potential energy. This study aims to create mathematical models of the interaction between a wave-powered pump, the reservoir, and the generator. The models then simulated to see how wave amplitude and reservoir height affect the energy output of the plant. From the simulation results, when the amplitude of the wave is varied between 0.6-1.4 m, the highest power output comes with 1 m wave amplitude. The water output debit which has a relation with stored energy also gives its high rate when the wave amplitude is 1 m. The nonlinear relationship between related parameters is nonlinear that optimization technique will be needed to optimize the plant at a specific working condition
Analisa Rugi-Rugi Pelepasan Energi Sistem Penyimpanan Energi Potensial Gravitasi Jenis Menara Beban rizki pratama putra
KILAT Vol 9 No 2 (2020): KILAT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/kilat.v9i2.1082

Abstract

This study discusses the mechanical losses of a gravitational potential energy storage system of load tower types. The aim of this research is to investigate the characteristics of mechanical losses with varied mechanical torque. Analysis of the friction friction theory of bearings and pulleys using the Harris model, then the prototype of the energy storage system is tested directly with the weight load varying in weight to see the characteristics of mechanical losses that occur in prototypes. This information will later be taken into consideration to design and optimize the energy storage system in terms of the selection of falling loads and how to design the energy charging and discharging mechanism. The results obtained are torque losses measurement are partly proportional to the falling mass applied to the system. The value of losses does not increase linearly with the addition of the mass of the falling load. This provides information in considering optimum falling mass weight for energy charging process and also how to consider the control mechanism of energy storage
Desain Sistem Pengereman Regeneratif Pada Sepeda Listrik Ringkas Rizki Pratama Putra
Energi & Kelistrikan Vol 13 No 1 (2021): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/energi.v13i1.1058

Abstract

Penggunaan kendaraan listrik yang semakin populer untuk mengurangi pencemaran lingkungan menuntut efisiensi penggunaan yang baik agar tujuan tersebut dapat tercapai. Penelitian diusulkan suatu metode pengereman regeneratif untuk meningkatkan efisiensi penggunaan energi dari sepeda listrik ringkas. Penelitian ini bertujuan untuk membuat suatu model dinamis dari sistem pengereman regeneratif yang diusulkan, sehingga hipotesis karakteristik efisiensi sistem pengereman dapat dibangun sebagai bahan pertimbangan dalam membuat dan mengoptimasi model fisik nantinya. Model dinamis akan disimulasikan menggunakan Simulink untuk melihat efisiensi pengereman berdasarkan kecepatan awal sepeda, selain itu pengaruh besar parameter sistem pengereman yaitu Spur Gear akan divariasikan untuk melihat variasi efisiensi. Dari hasil simulasi didapatkan bahwa nilai rugi torka yang dihasilkan dari proses pengereman sebanding dengan kecepatan awal pengereman. Di sisi lain efisiensi pengereman semakin meningkat dengan meningkatnya kecepatan awal pengereman, hal ini menandakan bahwa peningkatan rugi torka akibat peningkatan kecepatan awal pengeraman tidak memiliki sifat linear. Rasio spur gear yang tinggi memperbesar torka pengereman dan menghasilkan efisiensi yang nilainya naik jika rasio spur gear diperbesar. Hasil simulasi ini memberikan informasi awal untuk mengembangkan desain dan mengoptimasi efisiensi dan efektivitas pengereman
PENGARUH SUHU DAN VOLUME GAS KERJA TERHADAP DAYA KELUARAN PEMBANGKIT LISTRIK TENAGA TERMAL SURYA MENGGUNAKAN MESIN STIRLING Rizki Pratama Putra; Hasna Satya Dini; Novi Gusti Pahiyanti
Sutet Vol 8 No 2 (2018): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to investigate the influence of the temperature and the volume of stirling engine working gas on the power output of the solar thermal power plant which uses stirling engine. The methods used in this study are literature review on mathematical model of the system, the observations of the working stirling engine directly to see optimization opportunity, and simulation using simulink to see the output of the plant. The result obtained in this study are ; in general, system performance is strongly influenced by the temperature of the heating plate which is directly related to the working temperature of the gas. The heater plate temperature value is proportional to the output power provided, the higher the temperature of the heater plate, the greater power output will be obtained. From the results of the simulation also seem that high working gas temperatures reduces oscillation of the power output. the effect of the working gas volume does not significantly influence the output power. As for what can be concluded is, in the system that has been made, the main factor affecting the performance of the generating system is the temperature of the heating plate. So that performance optimization of the generating system can be further carried out in the parts related to these parameters.
Co-Authors Hasna Satya Dini Novi Gusti Pahiyanti