Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Jurnal Pengabdian Sosial Jurnal Sipakatau
Mohammad Khambali
Politeknik Negeri Semarang, Indonesia
Religion Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Physics Public Health Social Sciences Veterinary Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pendampingan Sistem Informasi Keuangan Berbasis Web dan Android pada Yayasan Nurul Ulum Pungkuran Semarang Muhlasah Novitasari Mara; Sindung Hadwi Widi Sasono; Abu Hasan; Slamet Widodo; Irfan Mujahidin; Thomas Agung Setyawan; Roni Apriantoro; Mohammad Khambali; Idhawati Hestiningsih; Reni Dyah Wahyuningrum; Bagas Saiful Islam; Pranata Yudha Pratama
Jurnal Pengabdian Sosial Vol. 3 No. 5 (2026): Maret
Publisher : PT. Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/v5vm4h87

Abstract

Yayasan Nurul Ulum Semarang (Yayasan NU Pungkuran) mengelola SD dan SMP Pungkuran dengan komitmen memberikan pendidikan berbasis nilai Islam. Namun, pengelolaan keuangan yang masih manual menyebabkan kesulitan dalam pemantauan data real-time, pencarian informasi, dan pengambilan keputusan, serta keterbatasan akses simultan antara admin dan ketua yayasan. Seiring perkembangan teknologi, Financial Technology (fintech) dapat menjadi solusi bagi yayasan pendidikan dalam meningkatkan efisiensi dan transparansi keuangan. Oleh karena itu, Tim PKM mengembangkan sistem laporan keuangan berbasis web/aplikasi yang memungkinkan pelaporan jarak jauh dengan akses real-time. Sistem ini akan mempermudah administrasi, mempercepat pencatatan keuangan, serta meningkatkan transparansi dan akuntabilitas. Program ini menargetkan luaran berupa publikasi ilmiah, pengembangan teknologi tepat guna, dan publikasi di media massa. Dengan implementasi sistem ini, Yayasan NU Pungkuran dapat mengelola keuangan lebih efektif, meningkatkan koordinasi internal, serta mempercepat pengambilan keputusan berbasis data.
Hybrid Optimization Approach for Enhancing 410 Wp Photovoltaic Performance Through Fresnel Lens Concentration and Dual-Axis Tracking Eriko Arvin Karuniawan; Adi Wasono; Mohammad Khambali; Achmad Hardito; Aggie Brenda Vernandez
Jurnal Sipakatau: Inovasi Pengabdian Masyarakat Vol. 3 No. 5 (2026): August
Publisher : PT. Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/sipakatau.v3i5.1046

Abstract

Despite Indonesia's abundant solar irradiance averaging 4.5–5.1 kWh/m²/day, conventional photovoltaic systems remain constrained by low conversion efficiency (6–30%), attributable largely to static panel orientation and temperature-induced voltage losses that limit off-grid energy yield. This study investigates a hybrid optimization approach that integrates Fresnel lens concentration with dual-axis solar tracking to quantify the individual and synergistic contributions of optical concentration and dynamic orientation control to the electrical output of a 410 Wp off-grid PV system. The experimental methodology comprised functional verification, calibration of the Fresnel lens installation distance, and comparative performance measurement across three configurations: fixed tilt, dual-axis tracking only, and the hybrid system. Data were collected at 15-minute intervals over a seven-day period between 08:00 and 16:00 local time using a NodeMCU ESP8266-based IoT monitoring framework, with panel surface and ambient temperature logged at the same interval. The dual-axis tracker alone increased daily energy generation by 8.83% (772.7 Wh vs. 710 Wh baseline) by maintaining optimal perpendicular orientation to incoming sunlight. The hybrid configuration incorporating 15 Fresnel lenses (30 × 30 cm, 10 cm focal length) mounted at an experimentally optimized distance of 3–4 cm above the panel surface achieved 825 Wh per day, representing a total improvement of 16.19% over the fixed-tilt baseline and a 6.77% incremental gain attributable specifically to optical concentration over the tracking-only configuration. The findings confirm that the synergistic integration of Fresnel lens optical concentration and dual-axis solar tracking produces a compounded gain exceeding the contribution of either technique applied alone. The configuration suits off-grid or space-limited installations, where each module must yield as much energy as possible.
Co-Authors Abu Hasan Achmad Hardito Adi Wasono Aggie Brenda Vernandez Bagas Saiful Islam Eriko Arvin Karuniawan Idhawati Hestiningsih Irfan Mujahidin Muhlasah Novitasari Mara Pranata Yudha Pratama Reni Dyah Wahyuningrum Roni Apriantoro Sindung Hadwi Widi Sasono Slamet Widodo Thomas Agung Setyawan