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All Journal Jurnal Rekayasa Mesin IJIE (Indonesian Journal of Informatics Education) Eksergi: Jurnal Teknik Energi Jurnal Pengabdian Masyarakat Bangsa
Sutanto, Bayu
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Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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Upaya Transparansi Informasi di Desa Surokonto Wetan, Kecamatan Pageruyung, Kabupaten Kendal Melalui Desiminasi Teknologi Papan Informasi Berbasis Solar PV Wahyono, Wahyono; Prasetiyo, Budhi; Widyaningsih, Wiwik Purwati; Surindra, Mochamad Denny; Priyoatmojo, Slamet; Su'udy, Ahmad Hamim; Herlambang, Yusuf Dewantoro; Margana, Margana; Sumarno, F Gatot; Suwarti, Suwarti; Hermawan, Baktiyar Mei; Sutanto, Bayu; Apriandi, Nanang
Jurnal Pengabdian Masyarakat Bangsa Vol. 2 No. 3 (2024): Mei
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v2i3.853

Abstract

Keterbatasan akses informasi akibat infrastruktur yang belum memadai di beberapa daerah berpotensi menutup ruang keterlibatan masyarakat di dalam proses pembangunan. Hal ini menjadi penyebab sering terjadinya kegagalan dalam mencapai target pembangunan yang inklusif dan berkelanjutan. Kegiatan ini bertujuan untuk memastikan keterbatasan akses informasi masyarakat tersebut dapat diatasi melalui desiminasi teknologi papan informasi berbasis solar PV mulai dari sistem pemerintahan terbawah, yaitu desa. Aparatur Desa Surokonto Wetan dilibatkan sebagai mitra di dalam kegiatan ini. Pendekatan Participatory Rural Appraisal (PRA) digunakan di semua tahapan proses. Kegiatan ini menghasilkan seperangkat teknologi sistem informasi yang dapat diakses masyarakat secara luas untuk mendapatkan informasi sistem pemerintahan yang transparan.
OPTIMALISASI ARAH SUDUT TILT DAN SUDUT AZIMUTH DARI ALAT PEMANEN ENERGI RADIASI MATAHARI DI SEMARANG, JAWA TENGAH Sutanto, Bayu; Herlambang, Yusuf Dewantoro; Bono, Bono; Alfauzi, Abdul Syukur; Munawwaroh, Dita Anies
Eksergi Vol. 17 No. 2 (2021): MEI 2021
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (776.751 KB) | DOI: 10.32497/eksergi.v17i2.2545

Abstract

Energi surya merupakan sumber energi terbarukan yang sangat optimal untuk dikembangkan dan telah menarik banyak perhatian baik dari para peneliti maupun pemerintahan. Penelitian ini bertujuan untuk mengidentifikasi sudut kemiringan (tilt/slope angle) dan orientasi arah (azimuth angle) dari suatu alat pemanen energi surya untuk mendapatkan nilai radiasi maksimum pada sepanjang tahun di daerah Semarang, Jawa Tengah. Lokasi yang digunakan sebagai basis data untuk menghitung arah sudut optimum ini dipilih di Politeknik Negeri Semarang yang berkoordinat di 7 °03'13.4" (7.053715 °) Lintang Selatan dan 110 °26'06.8" (110.435220 °) Bujur Timur. Metode perhitungan dari sudut-sudut matahari dan koordinat di bumi digunakan untuk mendapatkan nilai estimasi radiasi matahari. Hasil penelitian menunjukkan bahwa sudut kemiringan optimum sepanjang tahun berada pada kisaran 0 ”“ 30.14 ° dengan orientasi arah ke utara dan pada kisaran sudut kemiringan 0 ”“ 16.00 ° dengan orientasi arah ke selatan. Sedangkan untuk pemasangan menggunakan sudut konstan sepanjang tahun, nilai optimum dicapai pada sudut kemiringan 6.99 ° dengan orientasi menghadap ke utara.
Analysis of Hybrid System in the Photovoltaic and Photothermal Technology Sutanto, Bayu; Munawwaroh, Dita Anies; Bono, Bono; Herlambang, Yusuf Dewantoro; Sumarno, F Gatot; Alfauzi, Abdul Syukur
Eksergi Vol. 19 No. 01 (2023): JANUARY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i01.4191

Abstract

The utilisation and optimisation of solar energy have a vital role in reducing the global need for conventional fossil energy. Moreover, it is also clean and eco-environmentally energy resources. The photovoltaic-thermal (PV-T) hybrid system that combines photovoltaic and photothermal technology is an ideal solution for creating high-efficiency energy conversion devices. In addition, this system can be constructed to be small and compact with a higher economic value than the conventional technology from the previous solar energy harvesters. This paper will review the PV-T hybrid system and provide the thermodynamic analysis and the feasibility study.
Characteristics of the Savonius turbine to variation angles Su'udy, Ahmad Hamim; Prasetiyo, Budhi; Aulia, Nur Fatowil; Surindra”¬, ”ªMochamad Denny; Safarudin”¬, ”ªYanuar Mahfudz; Sutanto, Bayu
Eksergi Vol. 19 No. 2 (2023): MAY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i2.4476

Abstract

Wind energy is a form of energy that can be converted into electrical energy using a wind turbine. Based on the axis of rotation, wind turbines are of two types, namely horizontal axis wind turbines and vertical axis wind turbines. Wind turbines with a vertical axis have several types including Darrieus wind turbines, Savonius wind turbines, and H wind turbines. The purpose of this manufacture and test is to determine the effect of wind speed and system efficiency from the Savonius 8 blade wind turbine with variations in the angle of attack on wind speed. certain. Based on the test results, it can be seen that the highest generator power value is at a wind speed of 6 m/s worth 3.85 Watt with an angle of attack of 20 ° and a load of 1 DC lamp, a wind speed of 7 m/s worth 5.58 Watt with an angle of attack   f 0 ° and a load 3 DC lamps, wind speed of 8 m/s worth 8,52 Watts with an angle of attack of 5 ° and a load of 4 DC lamps. While the highest system efficiency value is obtained at a wind speed of 6 m/s worth 4,62 % with an angle of attack of 20 ° and a load of 1 DC lamp, a wind speed of 7 m/s worth 4,218 % with an angle of attack of 0 ° and a load of 3 DC lamps, wind speed 8 m/s worth 4,31 % with an angle of 5 ° and a load of 4 DC lamps.
Numerical Study Of The Influence Of Air Flow Through Rectangular Elbow 90 ° With Triangle Inlet Body Disturbance Aulia, Nur Fatowil; Faradis, Luke Ezra; Su”™udy, Ahmad Hamim; Safarudin, Yanuar Mahfudz; Mulyono, Mulyono; Hermawan, Baktiyar Mei; Sutanto, Bayu
Eksergi Vol. 20 No. 01 (2024): JANUARY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i01.5440

Abstract

AbstrakThis research is to determine the effect of air flow flowing through a 90 ° square elbow with the additional shape of a triangle inlet disturbance body. Simulations were carried out using the Computational Fluid Dynamics (CFD) method to analyze air flow characteristics and changes in flow patterns due to the presence of additional triangular shapes in the flow channel. Numerical simulations are carried out by taking the 90 ° square elbow geometry as the basic model and adding an additional triangle inlet disturbance body shape to it. The simulation results show that the triangle inlet disturbance body significantly influences the air flow inside the elbow. This effect can increase turbulence producing different pressure and velocity contours along the elbow. The effect of flow velocity on the flow in the elbow results in a higher velocity if the form of disturbance is also greater. This research could provide greater understanding of the influence of additional components on fluid flow in channels with similar geometries, opening up potential applications across a wide range of industries.Keywords”” Air flow simulation, Triangle Disturbance, Pressure, Speed
Unjukkerja Panel Surya Tipe Terapung untuk Pembangkit Listrik Herlambang, Yusuf Dewantoro; Prasetiyo, Budhi; Wahyono, Wahyono; Apriandi, Nanang; Marliyati, Marliyati; Sutanto, Bayu
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.5069

Abstract

Penerapan Pembangkit Listrik Tenaga Surya (PLTS) membutuhkan lahan/daratan yang memiliki nilai ekonomis, padahal Indonesia merupakan negara tropis yang memiliki potensi energi surya dan negara kepulauan dengan luas sebesar 2/3 berupa perairan dan danau di daratan yang bisa dimanfaatkan untuk pembangkit energi surya. Pemanfaatan PLTS terapung tidak memerlukan lahan/daratan, dapat mengurangi evaporasi, serta sebagai media pendingin modul PV untuk meningkatkan efisiensi. Tujuan penelitian ini adalah merancang sistem PLTS pada kolam budidaya dengan memanfaatkan sumber energi surya. Penelitian dimulai dengan mengukur potensi energi matahari selanjutnya perancangan dan pemilihan komponen yang memiliki kapasitas sesuai. Setelah melakukan beberapa pengamatan di daerah tersebut, PLTS yang cocok digunakan untuk menghidupkan aerator adalah PLTS off grid. PLTS 200 Wp mampu untuk menghidupkan aerator 120 W selama 12 jam pada siang hari dan aerator 100 W selama 8 jam pada malam hari. Pada kondisi pengosongan baterai, tegangan output panel rata-rata sebesar 12,89 V dan arus rata-rata sebesar 6,2 A dan pada kondisi pengisian baterai, tegangan output panel rata-rata sebesar 12,39 V dan arus rata-rata sebesar 6,6 A. Efisiensi sistem tertinggi pada kondisi pengosongan baterai sebesar 99%. Hal ini dikarenakan pada sore hari radiasi matahari rendah sehingga arus yang dihasilkan panel surya rendah dan mendapatkan supply dari baterai.
The Application of Arduino-Based Line Follower Robotics Technology as a Tool to Enhance Students' Self-Efficacy Fahrurozi, Slamet Kurniawan; Massaty, Muhammad Hassan; Budiyanto, Cucuk Wawan; Sutanto, Bayu
IJIE (Indonesian Journal of Informatics Education) Vol 8, No 2 (2024): (IJIE) Indonesian Journal of Informatics Education - December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijie.v8i2.97994

Abstract

This study focuses on a detailed analysis of the Robotics Self-Efficacy Test, aiming to evaluate its effectiveness in measuring students' confidence levels across specific robotics tasks. Using robotics as a learning medium, this research enhances student engagement and practical skills in technical areas. Addressing a gap in precise self-efficacy measurement tools for robotics education, the study employs the RSE-Test to assess confidence in essential robotics tasks, such as robot assembly, programming, and control. Data collection involved a 10-item RSE-Test questionnaire completed by 30 students engaged in robotics activities, followed by a statistical analysis to calculate mean scores, standard deviations, item-total correlations, and Pearson correlational analysis. The overall mean score was 3.9835, indicating high confidence, with a pooled standard deviation of 0.687, showing minimal variation. The pooled Standard Error of the Mean was 0.128, reflecting high precision in estimating the overall mean. Cronbach’s Alpha of 0.810 confirms the test's strong internal consistency, and item-total correlations ranged from 0.423 to 0.703, supporting the reliability of the RSE-Test. Pearson correlation analysis revealed significant relationships between items, further validating the tool. Results indicate high self-efficacy in basic robotics tasks, although students showed slightly lower confidence in more advanced tasks, suggesting areas for further support. This study validates the RSE-Test as an effective tool for measuring self-efficacy in technical education, emphasizing the role of foundational skills in building student confidence. The findings provide valuable insights for curriculum developers, suggesting the need for targeted support in advanced robotics tasks.
Co-Authors Ahmad Hamim Su’udy Alfauzi, Abdul Syukur Aminuyati Aulia, Nur Fatowil Bono Bono Budhi Prasetiyo Cucuk Wawan Budiyanto F Gatot Sumarno, F Gatot Faradis, Luke Ezra Hermawan, Baktiyar Mei Marliyati Marliyati, Marliyati Mochammad Denny Surindra Muhammad Hassan Massaty, Muhammad Hassan Mulyono Mulyono Munawwaroh, Dita Anies Nanang Apriandi Safarudin”¬, ”ªYanuar Mahfudz Slamet Kurniawan Fahrurozi Slamet Priyoatmojo, Slamet Surindra”¬, ”ªMochamad Denny Suwarti Suwarti Su”™udy, Ahmad Hamim Wahyono Wahyono Wiwik Purwati Widyaningsih Yanuar Mahfudz Safarudin Yusuf Dewantoro Herlambang