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All Journal Infotekmesin Journal of Community Development Dedikasi: Jurnal Pengabdian kepada Masyarakat Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim Pengabdian: Jurnal Abdimas Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Bayu Aji Girawan
Politeknik Negeri Cilacap
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KARAKTERISASI Al-Zn7 HASIL PELEBURAN DAPUR CRUCIBLE DENGAN TIPE PENUANGAN TUNGKIK Ipung Kurniawan; Bayu Aji Girawan; Imam Yulianto
Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v9i02.13

Abstract

Nowdays, Alumunium is widely used and utilized in industrial activities because of light properties and having well mechanical strengths. The use of alumunium does not only limit on the use of new alumunium, but also the used one. The main purpose of this research, i.e., (1) testing of physical and mechanical properties of Al-Zn7 from the fussion of Crucible furnace; (2) analyzing crucible furnace of the Al-Zn7 fussion by comparing to the result of the first and second fussion. The method of this research was experimental research with the average value of each the first casting was 49,2 HRB and the second one was 50,3 HRB. Based on the test result showed that the quality of crucible furnace was good because it did not experience the significant changes.
RANCANG BANGUN DAPUR CRUCIBLE TIPE PENUANGAN TUNGKIK KAPASITAS 15 KG DENGAN BAHAN BAKAR GAS LPG Ipung Kurniawan; Bayu Aji Girawan; Saeful Nurrohman
Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v9i01.1

Abstract

This research aims to; 1) Designing and making aluminium melting crucible casting with the capacity15 kg; 2) Conducting the test of chemical composition of the first and second melting result. Theresearch used field and library research. From the result of the design, it could be obtained that thedimension of melting casting has 547 mm diameter, 3 mm thick, 410 mm high. Whereas, molten cup has 178 mm diameter, 8 mm thick, and 230 mm high. The result of the first melting chemicalcomposition test and the second one do not work out a significant change. The material of the firstmelting result still contains 89,52% of aluminium (Al), while the main fusion is 7,71% of zinc (Zn)and 1,84% of silicon (Si), and in the second melting result still contains 89,55% of Alumunium (Al),while the main fusion is 7,51% of zinc (Zn) and 1,94% of silicon (Si).
Analisis Performa dan Studi Konsumsi Energi Kendaraan Listrik Sepeda Motor Listrik SEMOLI Nur Akhlis Sarihidaya Laksana; Radhi Ariawan; Bayu Aji Girawan; Akhlis Rahman Sari Nurhidayat
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2093

Abstract

In this article the author conducts research related to energy consumption studies on electric motorbike vehicles (SEMOLI) made and developed by the author. The purpose of the energy consumption study is to determine the energy consumption of electric motorbike vehicles that have been made for further improvement and development. The method used is experimentation with the first phase testing on a straight flat road for one kilometer with flat road conditions, this phase of experimental results shows an average energy consumption of 30 Wh, for an average uphill road consumption of 40 km / h and for the second phase of experimental data using experimental methods with speed parameters 30 - 35 km energy consumption has an average of 30 Wh, at speeds of 40 - 45 km / h energy consumption has an average of 28 Wh, and 50-55 km / h average energy consumption of 27 Wh. The test results show that on flat road conditions and the increasing speed, the energy consumption will decrease.
Pelatihan Pengolahan Limbah Kayu Mahoni (Swietenia Mahagoni) Pada BUMDes Banjarwaru Radhi Ariawan; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati; Roy Aries Permana Tarigan; Bayu Aji Girawan; Linda Perdana Wanti; Nur Wachid Adi Prasetya; Ganjar Ndaru Ikhtiagung
Journal of Community Development Vol. 5 No. 2 (2024): December
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v5i2.258

Abstract

Banjarwaru village is one of the villages in Cilacap district with the potential for wooden broom handle craft commodities. The processing of mahogany wood (Swietenia mahagoni) into broom handles produces wood waste that has not been utilized optimally. The accumulation of wood waste is caused by a lack of knowledge among the Banjarwaru village woodworking community regarding the potential dangers, benefits, and economic value of wood waste. Therefore, training in wood waste processing into value-added products such as particleboard is needed. The Community service team together with BUMDes Banjarwaru carried out mentoring activities as a solution method for utilizing wood waste. The mentoring activities carried out consist of educating the negative effects of wood waste on the environment, educating the potential and benefits of wood waste in another processed forms, and training in wood waste processing into particleboard. These series of activities succeeded in increasing the woodworking community understanding of wood waste by 81.6%. The success rate of mentoring reached 91,67% shown by 11 out of 12 mentoring participants understood the potential danger, benefits, and other processed forms of wood waste.
Pengembangan Sistem Budidaya Kepiting Sistem Tray Berbasis Energi Terbarukan di Eduwisata Cigimbal Park Asa Taufiqurrahman; Bayu Aji Girawan; Agus Santoso; Radhi Ariawan; Roy Aries Permana Tarigan; Ulikaryani; Ghia Pisti Cikarge; Yonathan Ito
Dedikasi:Jurnal Pengabdian kepada Masyarakat Vol. 6 No. 2 (2026): Jurnal Dedikasi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/dedikasi.v6i2.454

Abstract

Budidaya kepiting bakau (Scylla spp.) merupakan salah satu kegiatan ekonomi yang memiliki potensi tinggi di wilayah pesisir. Namun, keterbatasan lahan budidaya dan penggunaan sistem konvensional menjadi kendala dalam peningkatan kapasitas produksi. Kegiatan pengabdian kepada masyarakat ini bertujuan menerapkan sistem budidaya kepiting model tray berbasis energi terbarukan di Eduwisata Cigimbal Park, Kabupaten Cilacap. Sistem yang dikembangkan mengintegrasikan kompartemen tray bertingkat, Recirculating Aquaculture System (RAS), dan Pembangkit Listrik Tenaga Surya (PLTS). Metode pelaksanaan meliputi survei lokasi, perancangan dan instalasi sistem tray, pemasangan sistem filtrasi dan RAS, instalasi PLTS, serta pelatihan pengoperasian dan perawatan sistem kepada mitra. Hasil kegiatan menunjukkan bahwa sistem budidaya kepiting model tray berhasil diimplementasikan dengan baik dan mampu meningkatkan kapasitas budidaya dari 4 ekor/m² pada sistem floating crab box menjadi 12 ekor/m² pada area yang sama atau meningkat sebesar 200%. Integrasi RAS membantu menjaga kualitas air melalui sirkulasi dan filtrasi berkelanjutan, sedangkan PLTS menyediakan sumber energi yang ramah lingkungan untuk mendukung operasional sistem. Program ini menunjukkan bahwa penerapan sistem tray berbasis energi terbarukan berpotensi meningkatkan produktivitas budidaya, efisiensi pemanfaatan lahan, dan mendukung pengembangan ekonomi masyarakat pesisir secara berkelanjutan. Keywords: aquaculture, crab cultivation, renewable energy, RAS, tray system
Rancang Bangun Sepeda Motor Listrik (SEMOLI) Generasi 3 Nur Akhlis Sarihidaya Laksana; Bayu Aji Girawan; Radhi Ariawan; Akhlis Rahman Sari Nurhidayat
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2791

Abstract

In this research, the design process of the third generation of electric motorcycles (SEMOLI) is carried out, which is a development of the previous generation with the aim of developing electric vehicles using gearboxes, in order to add acceleration ratios to adjust to road or terrain conditions. as an alternative solution to the increase in fuel and the depletion of fossil energy sources. The results of this study support the national electric vehicle conversion program. The results can be used for the development of the automotive industry. The method used is research and development (R&D). The design process begins by calculating the design requirements for power transfer and frames. The frame simulation process produces a maximum stress of 149 MPa with a allowable stress of 163.2 MPa with a displacement of 2 mm. It is said to be safe to continue the manufacturing and fabrication process. The vehicle trial process produces a maximum vehicle speed of 55 km/h with an average energy consumption of 27 watts/hour.
Pengaruh Ketebalan Orifis Terhadap Karakteristik Hidrodinamik Oksigen Terlarut pada Microbubble Generator Tipe Porous-Orifis Agus Santoso; Radhi Ariawan; Bayu Aji Girawan; Ghia Pisti Cikarge
Infotekmesin Vol 17 No 1 (2026): Infotekmesin: Januari 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v17i1.3038

Abstract

This study aims to analyze the effect of orifice thickness on the performance of a porous-orifice microbubble generator (MBG) in aeration processes, particularly concerning the enhancement of dissolved oxygen (DO) concentration and the volumetric oxygen mass transfer coefficient (KLa). The primary issue identified is the limited number of studies that explicitly address the role of orifice thickness as a critical geometric parameter influencing microbubble formation and oxygen transfer efficiency. The research was conducted experimentally under controlled laboratory conditions using two orifice thickness variations, 1.5 mm and 9 mm, with different water and air flow rates, QL and QG. The findings reveal that increasing air flow rate (QG)  correlates positively with higher KLa values for both orifice types; however, the thinner orifice consistently demonstrates superior KLa performance. This behavior is attributed to a steeper pressure gradient and stronger shear forces that promote finer bubble fragmentation and greater gas–liquid interfacial area. Overall, the thin-orifice MBG proved more efficient in enhancing aeration performance compared to the thick-orifice configuration.
Wood Waste Crushing Machine Training at BUMDes Banjarwaru Sejahtera Linda Perdana Wanti; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati; Roy Aries Permana Tarigan; Bayu Aji Girawan; Radhi Ariawan; Nur Wachid Adi Prasetya; Ganjar Ndaru Ikhtiagung
Pengabdian: Jurnal Abdimas Vol. 2 No. 3 (2024)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/abdimas.v2i3.847

Abstract

Background. BUMDes Banjarwaru Sejahtera is a business owned and managed by the people of Banjarwaru Village, Cilacap Regency. Some of the businesses that have been managed by BUMDes Banjarwaru Sejahtera include renting molen machines and making handicrafts such as broom handles and woven bamboo household crafts which produce an abundance of wood waste left over from the production process. So far, this wood waste has been sold to tofu craftsmen as fuel for the tofu production process. Purpose. People can use wood waste as added value by processing wood waste into handicrafts that have high economic value so that they can improve the welfare of the people of Banjarwaru village. Through this community service activity, training will be held on the use of wood waste chopping machines so that processed wood waste can be made into handicrafts such as particle boards or other handicrafts. Method. The method used is a lecture method where the community service team who are lecturers at the Cilacap State Polytechnic provide training on the use of wood waste chopping machines to members of BUMDes Banjarwaru Sejahtera and several wood craftsmen in Banjarwaru village. Results. The results of this community service activity have had a positive impact on business development at BUMDes Banjarwaru Sejahtera. Conclusion. Through this community service activity, it can be concluded that this activity has had a positive impact on the business development of BUMDes Banjarwaru Sejahtera. Apart from this, training in the use of wood waste chopping machines can also increase the competence of wood craftsmen in Banjarwaru village so they can produce more varied crafts made from wood waste.
Studi Potensi Pembangkit Listrik Tenaga Bayu (PLTB) di Pantai Teluk Penyu Cilacap Menggunakan Analisis Distribusi Weibull Ulikaryani Ulikaryani; Agus Santoso; Bayu Aji Girawan; Radhi Ariawan; Unggul Satria Jati; Jenal Sodikin; Ari Kristiningsih
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 5 No. 2 (2026): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v5i2.5092

Abstract

The ever-increasing demand for electrical energy drives the utilization of renewable energy as a sustainable alternative source. Wind energy is one such potential renewable energy source. As a region situated on the southern coast of Java, Cilacap Regency possesses relatively stable wind characteristics, making it a promising location for the development of wind power plants. This study aims to analyze the wind energy potential in the Cilacap region using the Weibull distribution. The Weibull method was employed to determine the shape parameter (k) and scale parameter (c) based on wind speed data. The analysis results indicate an average wind speed of 6.225 m/s in the Cilacap region especially Teluk Penyu Beach, with Weibull parameters of k = 2.972 and c = 6.973 m/s. These values ​​reflect wind characteristics that are relatively stable and favorable for the development of small- to medium-scale wind power plants. The calculated wind power density (WPD) indicates that the coastal area of ​​Cilacap is suitable for harnessing wind energy as an alternative energy source.
UJI FUNGSI DAN KALIBRASI SENSOR WATER FLOW YF-S201 BERBASIS ARDUINO UNO PADA MESIN PENJERNIH AIR SUNGAI Aziz Adela Rashad; Ulikaryani; Bayu Aji Girawan; Radhi Ariawan; Jenal Sodikin; Hety Dwi Hastuti
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 3 No. 2 (2023): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v3i2.1850

Abstract

Semi-automatic water purification machines are urgently needed by the people around the Sitopong river, Cilacap Regency. Required application and testing of the YF-S201 type water flow sensor based on Arduino Uno. This is done so that the application of the water speed sensor in the river water purification machine can be maximized. The research method used is a literature study related to Arduino Uno and conducting experiments. The experiments were carried out in the form of testing the water flow velocity sensor, carrying out the process of calibrating the water flow sensor. Sensor testing was carried out 10 times after calibration. Based on the calibration results, an average volume of 329 ml was obtained from the desired volume of 330 ml so that an error of 0.3% was obtained. Whereas at the desired volume of 600 ml, the average volume of the calibration results is 598 ml, it can be seen that an error of 0.3% is obtained at a volume of 600 ml. Function test on the water filling process with 10 trials obtained an accuracy of 99.6% for a 330 ml volume bottle and 99.6 ml for a 600 ml volume bottle.
Co-Authors Agus Santoso Akhlis Rahman Sari Nurhidayat Akhlis Rahman Sari Nurhidayat Ari Kristiningsih Asa Taufiqurrahman Aziz Adela Rashad Ganjar Ndaru Ikhtiagung Ghia Pisti Cikarge Hety Dwi Hastuti Imam Yulianto Jenal Sodikin Kurniawan, Ipung Linda Perdana Wanti Nur Akhlis Sarihidaya Laksana Nur Akhlis Sarihidaya Laksana Nur Wachid Adi Prasetya Radhi Ariawan Radhi Ariawan Roy Aries Permana Tarigan Saeful Nurrohman Ulikaryani, Ulikaryani Unggul Satria Jati Yonathan Ito