Permasalahan masyarakat di pesisir pantai di kabupaten malang adalah energi listrik. Suplai energi listrik PLN yang kurang menjadi masalah untuk kebutuhan listrik sehari-hari masyarakat pesisir pantai untuk penerangan. Potensi intensitas matahari yang rata-rata perhari 600-1000 W/m2, potensi energi angin dengan kecepatan rata-rata 2-6 m/s dapat dimanfaatkan untuk sumber energi pembangkit listrik energi terbarukan. Penelitian ini bertujuan menganalisis pemanfaatan energi matahari dan energi angin di pesisir pantai Tamban Kabupaten Malang untuk dikonversi energi listrik. Penelitian ini menggunakan turbin angin sumbu vertikal darrieus-H NACA 0018 modifikasi untuk menggerakkan generator AC 300 watt 3 fase dan modul solar cell 1000 WP monokristal. Hasil dari penelitian model pembangkit listrik solar cell-turbin angin menghasilkan daya listrik solar cell 1,98 KW per hari dan pembangkit listrik turbin angin rata-rata menghasilkan 33,2-33,5 watt. Performa tertinggi terdapat pada beban 100 Watt dengan efisiensi sebesar 64,72%. Sedangkan efisiensi terendah terdapat pada beban 25 Watt dengan efisiensi sebesar 63,68%, sehingga model pembangkit listrik hybrid solar cell-turbin angin memiliki efektifitas dan efisien yang baik untuk diterapkan di daerah pesisir pantai.
Pumps are the most widely used rotating equipment in both the domestic and industrial sectors with a contribution of around 3% of the world's electrical energy usage, in addition to the size of pumps available with many incompatible requirements, it is necessary to regulate their capacity. In this article, there are two capacity setting methods tested, namely valve opening and variable speed drive on semi open and closed centrifugal pump torque flow impeller with blades of 7, 8 and 9. The results explain that in valve opening method the number of blades affects the power consumption pump electricity, although not significant enough, while the variable speed drive method, the number of blades has no effect. However, the power consumption of the impeller closed is lower than the semi open impeller in the valve opening method and there is no significant difference in the variable speed drive method. The capacity setting method with a variable speed drive consumes less electric power than the valve opening method, if the flow of pump more decrease from the initial condition the greater the savings obtained with the variable speed drive method than the valve opening method.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.