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All Journal Teknomekanik Jurnal Pusat Inovasi Masyarakat SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan)
Wijaya, Elang Pramudya
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Mechanical Engineering Social Sciences

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Pengaruh Lebar Saluran pada Building Integrated Photovoltaic pada Performa PV Wijaya, Elang Pramudya; Yatim, Ardiyansyah Saad; Isnanto, R Rizal; Suprihanto, Agus
SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) Vol 6 (2024)
Publisher : SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan)

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Abstract

Salah satu contoh dalam mengkonversi energi matahari adalah dengan menggunakan solar photovoltaic atau yang biasa disebut solar PV untuk menghasilkan energi listrik dari sistem tersebut. Salah satu cara paling umum untuk mendapatkan energi dari matahari adalah melalui panel surya (PV). Namun, dalam beberapa kasus, kita dihadapkan pada tantangan keterbatasan lahan. Untuk mengatasi hal ini, integrasi panel PV ke dalam struktur bangunan dirancang guna mengoptimalkan potensi pemanfaatan energi matahari sekaligus menyelesaikan kendala ruang yang terbatas. Dengan mengintegrasikannya sebagai fasad atau menggantikan bahan bangunan tradisional, hal ini dapat mengurangi jejak karbon. Penelitian ini bertujuan untuk memodelkan pendinginan alami konvektif dan pendinginan pasif pada sistem BIPV dalam skala nyata serta menemukan pengaruh lebar saluran terhadap pendinginan pasif di permukaan modul PV. Selain itu, studi literatur juga dilakukan untuk mengetahui dampak pendinginan pasif terhadap kinerja PV dalam berbagai kondisi kecepatan angin. Simulasi CFD dilakukan dengan kondisi batas mengacu pada kondisi tes standar. Hasilnya menunjukkan bahwa kenaikan suhu PV yang paling rendah terjadi pada lebar celah yang lebih besar. Hal ini menunjukkan efisiensi produksi listrik yang lebih tinggi dari BIPV. Lebar celah udara menentukan perpindahan panas di dalam celah tersebut. Konduksi panas mendominasi proses perpindahan panas pada kecepatan rendah (1 m/s). Di sisi lain, suhu operasi sel dipengaruhi oleh apakah aliran mencapai kondisi aliran yang sepenuhnya berkembang atau tidak.
Edukasi Herbal Mineral Blok untuk Meningkatkan Efisiensi Pakan Ternak Ruminansia di Desa Gunung Menyan, Bogor Zylviana, Tengku; Firliani, Syifa Malika; Anbiya, Muhammad Regi; Maharani, Desvita Fitri; Mahenindra, Talenta Parfaibya; Ihsani, Wafi; Safitri, Afizah Dwi; Vebrian, Zaky; Wijaya, Elang Pramudya
Jurnal Pusat Inovasi Masyarakat Vol. 7 No. 2 (2025): Oktober 2025
Publisher : Direktorat Pengembangan Masyarakat Agromaritim, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpim.7.2.369-377

Abstract

This community service program was carried out in Gunung Menyan Village, Bogor, with the aim of enhancing farmers’ understanding and skills in producing and utilizing Herbal Mineral Blocks (HMB) as supplementary feed for goats and sheep. The activities were conducted through socialization sessions, tutorial video presentations, and hands-on practice, with effectiveness measured using pre-test and post-test assessments administered to 46 participants. The results indicated a significant increase in knowledge, as evidenced by the paired t-test results (p < 0.05), showing that the participants’ average scores improved. These findings demonstrate that HMB education not only provided new insights but also fostered collective awareness among farmers regarding the importance of healthier and more efficient feed management. From an economic perspective, the use of HMB has the potential to improve livestock quality, increase market value, and strengthen consumer trust in local products. This program serves as an initial step in raising farmers’ awareness of feed quality as a key factor in improving livestock performance.
Grid convergence analysis of an H-Darrieus wind turbine for multiple blade configurations Nasution, Sanjaya Baroar Sakti; Nasution, Dian Morfi; Wijaya, Elang Pramudya; Ompusunggu, Oki Suprada
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.45272

Abstract

Mesh size and number significantly affected the accuracy of CFD simulations in wind turbine analysis. However, most studies focused solely on turbine performance, such as the blade torque or power coefficients. Therefore, this study adopted a broader perspective by analyzing the influence of mesh resolution on both aerodynamic performance and key fluid-dynamic parameters, including vorticity and pressure coefficients, for an H-type Darrieus vertical-axis wind turbine. Two-dimensional CFD simulations were performed using ANSYS Fluent with the k–ω SST turbulence model. Five mesh levels were evaluated across different blade configurations, and the Grid Convergence Index (GCI) was used to quantify discretization errors. The results indicate that increasing mesh resolution yields more stable torque predictions and improved resolution of near-wall flow features, with consistent grid-convergence behaviour observed across all blade configurations. GCI analysis shows that discretization errors consistently decrease as the mesh becomes finer. It also shows that a grid size of about 1.6 x 105 cells is sufficient to keep errors below 5%. These findings show that including flow-field details in mesh sensitivity analysis gives a better way to check the accuracy of CFD simulations for Darrieus wind turbines.
Co-Authors Agus Suprihanto Anbiya, Muhammad Regi Dian Morfi Nasution Firliani, Syifa Malika Ihsani, Wafi Maharani, Desvita Fitri Mahenindra, Talenta Parfaibya Nasution, Sanjaya Baroar Nasution, Sanjaya Baroar Sakti Ompusunggu, Oki Suprada R Rizal Isnanto Safitri, Afizah Dwi Vebrian, Zaky Yatim, Ardiyansyah Saad Zylviana, Tengku