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All Journal Engineering Science Letter Journal of Sciencce Technology and Visual Culture
Edo Kharisma Army
Institut Teknologi Sumatera
Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Perhitungan Permeabilitas Tanah dengan Metode Falling Head pada PT Solusi Bangun Indonesia, Plant Tuban Edo Kharisma Army; Natasya Tsabitah
Journal of Science, Technology, and Visual Culture Vol 3 No 2 (2023): Juli 2023
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Limbah produksi cair pada PT Solusi Bangun Indonesia selama ini digunakan untuk menyiram tanaman dan beberapa titik di Kawasan perusahaan. Namun hingga saat ini belum pernah dilakukan pengukuran permeabilitas tanah pada titik penyiraman di lokasi. Perhitungan permeabilitas tanah penting untuk kajian lingkungan lanjutan, karena air yang tidak terinfiltrasi ke tanah akan menjadi air larian yang merusak permukaan tanah. Metode perhitungan permeabilitas yang digunakan adalah metode falling head dengan pengukuran insitu. Lokasi perhitungan permeabilitas terdiri dari tiga lokasi, area quarry (1 titik pengukuran), area pabrik dan plant (4 titik pengukuran), serta area main road dan jetty (3 titik pengukuran). Area quarry merupakan tanah lempung dengan kategori permeabilitas agak cepat. Area pabrik dan plant merupakan tanah lempung dan tanah lempung dengan fragmen batugamping, kategori permeabilitas agak cepat hingga cepat. Area main road dan jetty merupakan tanah lempung dengan kategori permeabilitas sedang. Maka dapat disimpulkan pada area quarry, pabrik, dan plant memiliki nilai permeabilitas lebih besar dan kategori rerata agak cepat merupakan area yang baik untuk dilakukan penyiraman, karena air akan terinfiltrasi dengan baik dan tidak menjadi air larian yang merusak tanah permukaan.
Modelling Optimisation of Distributed PV-Battery Charge and Discharge Modes Using Systems for Improved Sustainable Energy Management Syamsyarief Baqaruzi; Amrina Mustaqim; Ali Muhtar; Muhammad Rizky Hikmatullah; Rahmat Fadhilah; Andika Munandar; Edo Kharisma Army; Setiadi Wira Buana; Rizqi Wahyudi; Muhammad Rifqi Dwi S
Engineering Science Letter Vol. 5 No. 01 (2026): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001508

Abstract

This study examines the simulation of charge and discharge modes of lithium-ion batteries in a distributed photovoltaic system using MATLAB/ Simulink modeling. The objective is to analyze the integration of solar panels with battery-based energy storage systems to optimize performance and efficiency. The methodology involves mathematical modeling of photovoltaic cells based on p-n junctions, with key parameters such as temperature (15–30°C) and irradiance (1000 W/m²), along with the design of a Solar Charge Controller (SCC) to regulate energy flow. Simulations were conducted on four 150 W photovoltaic panels under varying environmental conditions, integrated with parallel-connected 12 V 250 Ah batteries. Results show a system efficiency of 87% at 25°C and 1000 W/m² irradiance, with panel output voltages aligning with mathematical equations (0.15 A error). Discharge mode analysis, accounting for system losses (inverter 5%, SCC 3%, wiring 2%), confirms the battery can supply a 5 Ω load for approximately 2.00 hours at 45% State of Charge (SOC), representing a 9.5% reduction from the ideal calculation. Simulations also compare SCC performance using DC and photovoltaic sources, demonstrating consistency in energy flow regulation. Validation results indicate the Simulink model’s accuracy in representing real-world characteristics, though MATLAB code simulations exhibit higher precision. The study highlights the importance of SCC control and SOC management to enhance battery lifespan and stability in renewable hybrid energy systems. Implications include potential applications.
Co-Authors Ali Muhtar Amrina Mustaqim Andika Munandar Buana, Setiadi Wira Muhammad Rifqi Dwi S Muhammad Rizky Hikmatullah Natasya Tsabitah Rahmat Fadhilah Rizqi Wahyudi Syamsyarief Baqaruzi