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All Journal INSIST (International Series on Interdisciplinary Research) Jurnal Sains dan Ilmu Terapan
Adhy Prayitno
Universitas Riau
Computer Science & IT Engineering Other

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Electric Power Optimizing Of Solar Panel SystemThrough Solar Tracking Implementation; A Case Study in Pekanbaru Adhy Prayitno; Muhammad Irvan; Sigit Nurharsanto; Wahyu Fajar Yantoa
INSIST Vol 2, No 2 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.486 KB) | DOI: 10.23960/ins.v2i2.85

Abstract

Observations and measurements have been conducted towards a solar panel electric power output that is utilized by a solar tracking system. The electrical power output depends on the position of the sun and time and the direction of the panel surface against the angle of the incident light. For power optimization, the solar panel surface should always be directed perpendicular to the direction of the sunlight falling to the surface of the panel. The application of the solar tracking system controlled by a micro controller gives the expected results. The electrical power output of a static solar panel mounted on a fixed position becomes the benchmark of the output electric power value in this study. The measurement results of the electric power output of the solar panel with sun tracking system shows a significant increase in sunny weather conditions.The average increase of that is about 57.3%.Keywords: LDR, micro controller, optimal power output, performance improvment, sun tracking,
Pembuatan Carboxymethyl Cellulose (CMC) Dari Pelepah Kelapa Sawit Razita Hariani; Adhy Prayitno; Bahruddin Bahruddin
Jurnal Sains dan Ilmu Terapan Vol. 3 No. 1 (2020): Juli : Jurnal Sains dan Ilmu Terapan
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.147 KB) | DOI: 10.59061/jsit.v3i1.13

Abstract

Pelepah kelapa sawit mempunyai kandungan selulosa sebesar 40,96%. Selulosa merupakan bahan baku utama sintesis karboksi metil selulosa (CMC). Tujuan dari penelitian ini adalah untuk mengetahui kondisi optimum sintesis CMC dari pelepah kelapa sawit menggunakan Response Surface Methodology (RSM). Sintesis CMC terdiri dari dua tahap yaitu alkalisasi dan eterifikasi. Faktor yang diteliti pada penelitian ini adalah rasio Natrium Monokloroasetat (NaMCA) : selulosa, dan waktu eterifikasi. Respon yang dioptimasi pada CMC yang dihasilkan adalah derajat substitusi (DS), viskositas, pH dan kemurnian. Kondisi optimum sintesis CMC dari selulosa pelepah kelapa sawit didapatkan pada berat NaMCA 8 g dan waktu eterifikasi 4 jam. Hasil dari perhitungan RSM menunjukkan CMC dengan kondisi optimum memiliki nilai DS sebesar 0,81, viskositas 5,72 cP, pH 7,67 dan kemurnian 99,56% sedangkan uji verifikasi menunjukkan nilai DS sebesar 0,83, viscositas 5,81 cP, pH 7,56 and kemurnian 99,67%.
Co-Authors Bahruddin Muhammad Irvan Razita Hariani Sigit Nurharsanto Wahyu Fajar Yantoa