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All Journal Technologia: Jurnal Ilmiah Muria Jurnal Layanan Masyarakat International Journal of Engineering Continuity
Ery Sadewa
Universitas Semarang
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Analisis Kualitas Jaringan Internet Sebagai Penunjang Kegiatan Perkuliahan di Fakultas Teknik Puri Muliandhi; Taufiq Dwi Cahyono; Ery Sadewa
Technologia : Jurnal Ilmiah Vol 14, No 4 (2023): Technologia (Oktober)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/tji.v14i4.12411

Abstract

Teknologi Wi-Fi merupakan salah satu jenis media komunikasi data tanpa kabel yang dapat digunakan untuk komunikasi atau transfer data dengan kecepatan yang luar biasa cepat. Hal ini dikarenakan teknologi Wi-Fi dapat meningkatkan mobilitas pengguna dan meringankan masalah yang berkaitan dengan teknologi jaringan komputer yang menggunakan media kabel. Tujuan dari penelitian ini adalah untuk menganalisis kualitas jaringan internet. Proses pengambilan data untuk kualitas jaringan internet menggunakan metode walktest. Hasil dari pengambilan data kemudian dievaluasi menggunakan aplikasi Ekahau Site Survey untuk mengetahui seberapa baik kinerja jaringan internet. Sesuai dengan kebutuhan, total 16 titik akses diperoleh untuk memastikan performa dan kualitas jaringan yang optimal. Hasil simulasi berdasarkan konfigurasi access point menghasilkan hasil yang lebih ideal.
Evaluating of DC-DC Buck-Boost Converter implementation for Integrated Solar Photovoltaic and Thermoelectric Cooler System Priyo Adi Sesotyo; La Ode Muhamad Idris; Taufik Dwi Cahyono; Ery Sadewa
International Journal of Engineering Continuity Vol. 4 No. 1 (2025): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v4i1.372

Abstract

The growing demand for compact, efficient, and eco friendly cooling solutions has driven research into integrating thermoelectric coolers (TECs) with solar photovoltaic (PV) systems, where solar irradiance variability impacts cooling efficacy and energy efficiency. This challenge is addressed using DC-DC Buck-Boost converters whose performance is heavily influenced by control strategies such as Proportional Integral Derivative (PID) controllers employing tuning approaches that balance performance and prioritize disturbance rejection. This study investigates the implementation and performance of a DC-DC buck-boost converter in a solar photovoltaic and thermoelectric cooling (PV-TEC) system. Simulation-based analysis compared tuning methods for their ability to maintain thermal stability, reduce electrical input fluctuations, and enhance the TEC's Coefficient of Performance (COP). Results show that the PID controller significantly improves responsiveness and energy efficiency in dynamic solar conditions, achieving a 23% reduction in power consumption and a 36% increase in COP, highlighting the importance of adaptive control strategies.
Performance Analysis of an Integrated PV/T–TEC System with a PID enabled DC–DC Boost Converter for Photovoltaic Thermal Management Priyo Adi Sesotyo; La Ode Muhamad Idris; Taufik Dwi Cahyono; Ery Sadewa
International Journal of Engineering Continuity Vol. 4 No. 2 (2025): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v4i2.450

Abstract

The temperature-induced efficiency loss of 0.4% to 0.5% for every °C above 25 °C alongside the inherent variability in solar irradiance, poses a critical challenge to the efficiency and stability of Photovoltaic (PV) modules. This study addresses this limitation by developing and analyzing an Integrated Photovoltaic Thermal-Thermoelectric Cooler (PV/T–TEC) system designed for robust thermal management and enhanced energy yield. The proposed system utilizes a synergistic hybrid cooling mechanism: a passive PV/T air collector for bulk heat dissipation from the PV panel's rear surface, coupled with an active Thermoelectric Cooler (TEC) for precise temperature stabilization. The electrical energy flow is managed by a DC–DC Boost Converter employing a PID controller, with a focus on input disturbance rejection, ensuring the TEC operates at an optimal, stable power point.Simulation and performance analysis demonstrate the significant advantages of this hybridized approach. The PV/T air collector was confirmed as the primary thermal component, achieving a peak heat dissipation QEmit approximately 7.5 times greater than the TEC-only configuration. This strategic pre-cooling successfully stabilizes the TEC's hot-side temperature, enabling the TEC to operate with a low operational temperature differential ∆T and resulting in an exceptionally high calculated Effective System Coefficient of Performance COP peaking at 14.5. The system maintains a stable operating point during peak solar radiation, maximizing the Net Electrical Power Gain. In conclusion, the integration of passive PV/T cooling, active TEC cooling, and a PID-enabled DC–DC Boost Converter provides an exceptionally efficient and stable solution for PV thermal management. The research strongly supports the efficacy of this hybrid system for significantly improving the overall energy efficiency and sustainability of solar energy applications.
Penerapan BMS pada Baterai Lithium-ion Sebagai Balancing Pengisian dari Panel Surya pada Siswa SMKN 1 Tengaran Yusuf Nurul Hilal; Satria Pinandita; Ery Sadewa
Muria Jurnal Layanan Masyarakat Vol. 6 No. 1 (2024): Maret 2024
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/mjlm.v6i1.12356

Abstract

The 18650 type lithium-ion battery is the type of battery most widely used in today's era, such as in electric cars, electric saws, electric drills and many more. This battery was chosen because it has stable performance, is more environmentally friendly and has a longer service life compared to other types of batteries. However, in use, lithium-ion batteries cannot stand alone, these batteries require an additional circuit, namely the BMS (battery management system), which functions to protect the battery from over charging, over discharging, short and over temperature, so that it is safe to use. Community service was carried out at SMKN 1 Tengaran, Semarang Regency, by providing material and training regarding the use of BMS on lithium-ion batteries by charging them using solar panels. This training was carried out for 3 hours with a total of 30 students, starting from delivering the material to direct practice.
Co-Authors La Ode Muhamad Idris Puri Muliandhi Satria Pinandita Sesotyo, Priyo Adi Taufik Dwi Cahyono Taufiq Dwi Cahyono Yusuf Nurul Hilal