<p>Penelitian ini dilakukan untuk menganalisis performa dan analisis ekonomi suatu sistem solar cell untuk mengoperasikan pompa air dengan metode eksperimental, desain kemiringan solar cell sangat mempengaruhi terhadap penyerapan energi panas dari matahari. Desain yang tepat dapat menaikan efisiensi energi matahari. Analisis ini meliputi perhitungan numerik dengan memvariasikan sudut kemiringan yang minimal sampai optimal yang akan digunakan. Daya energi yang dihasilkanan dalam Satuan watt peak energi matahari dikonversi dalam watt, proses terjadinya energi matahari ketika panas dalam peak diserap solar cell perhari. Energi listrik dari matahari yang di analisis ini untuk menghidupkan pompa air yang difungsikan untuk memindahkan fluida dari sungai ke persawahan. Dengan suplai energi listrik dari energi matahari sehingga pompa dapat beroperasi. Hasil eksperimen menunjukan bahwa daya modul surya mampu menghasilkan daya sebesar 2011,2626 watt. Dan perhitungan investasi energi matahari dengan umur modul solar cell selama 20 tahun menunjukan bahwa dari kedua sistem perancangan solar cell bisa di laksanakan karena IRR > 13% yaitu; IRR sistem indirect 129,89% dan IRR sistem direct 199,76%.</p>
This research analyses v-bending results using galvanized SGCC (JIS G 3302) sheet steel. The accuracy of the angle and dimensions of the bending results are the significant elements of the bending process that must be achieved. The bending spring-back/spring-go phenomenon has an impact on bending angle accuracy. If proper parameters are chosen, the spring-tub/spring-go angle should be minimized. This study aimed to see how the proposed v-bending process affected the spring-tub/spring-go angle value. An experimental approach was selected in this study. V-die bending opening, V-die punch angle, V-die punch speed, and bending force are all input parameters for the v-bending process. Meanwhile, in this study, galvanized steel with a thickness of 1.2 mm was used. The results of the ANOVA evaluation showed that the v-die punch speed and bending force are two parameters that affect the response of the variable, with a percentage contribution of 31.0% each. The minimum spring-back angle was found in the second sample, while the minimum spring-go angle was found in the fourth sample
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