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All Journal ARMATUR : Artikel Teknik Mesin dan Manufaktur AMMA : Jurnal Pengabdian Masyarakat
I Made Ivan Wiyarta Cakra Sujana
Institut Teknologi Kalimantan
Aerospace Engineering Humanities Automotive Engineering Chemistry Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing

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Analisis pengaruh koefisien konveksi media pendingin terhadap temperatur panel surya dengan perendaman sebagian (Partially Submerged Photovoltaic) Rijal Surya Rahmany; I Made Ivan Wiyarta Cakra Sujana; Yongki Christandi Batubara
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 1 (2026): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i1.10902

Abstract

One of the main challenges in PV system deployment is the increase in panel operating temperature, which leads to a reduction in energy conversion efficiency, particularly in tropical regions with high solar irradiance. Potential solution to mitigate this issue is the partially submerged photovoltaic (PSPV) system. This study aims to analyze the influence of convective heat transfer coefficients on the surface of a PSPV system on the operating temperature of photovoltaic panels using a numerical modeling approach. The research methodology involves the development of an energy balance model that accounts for the contributions of solar radiation, convective heat transfer, and thermal radiation. The panel area is divided into two equal sections with a 50:50 ratio, consisting of a submerged portion and an air-exposed portion. The convective heat transfer coefficients for the submerged section are set to 100 W/m²K for both the upper and lower surfaces. For the air-exposed section, the upper surface convective heat transfer coefficient is varied between 10 and 70 W/m²K, while the lower surface coefficient is maintained at 10 W/m²K. Simulation results indicate that the presence of water as a cooling medium significantly reduces the panel operating temperature to approximately 31 °C, compared to a fully air-exposed panel configuration, which reaches an operating temperature up to around 55 °C.
Pembuatan Dan Pemanfaatan Electric Wheelchair Bagi Penyandang Disabilitas Di RT.36 Kelurahan Telagasari Frans Ivan Christofel Hutabarat; Gad Gunawan; Alfian Djafar; Rijal Surya Rahmany; Andre Amba Matarru; I Made Ivan Wiyarta Cakra Sujana; Yongki Christandi Batubara; Kevin Hasiholan Lumban Tobing; Razif Mahmudi Syahlie; Linda; Yonathan Parsaulian Lobo Silalahi; Rifqi Al Wafi; Bagas Hendi Prasetya
AMMA : Jurnal Pengabdian Masyarakat Vol. 3 No. 11 : Desember (2024): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Currently, there are individuals around us living with disabilities caused by accidents or other factors. People with disabilities generally require assistance from others, particularly for mobility or moving from one place to another. Although manual wheelchairs can provide a solution for mobility, they remain challenging to operate using hand power alone and often require external help for movement. To facilitate mobility for individuals with disabilities, especially wheelchair users, an electric drive system in the form of an electric motor is proposed as a solution. The development of a motorized electric wheelchair aims to enhance the mobility of individuals with physical disabilities. Members of the Indonesian Association of Persons with Disabilities (PPID) were selected as community service partners for this initiative. It is hoped that, in addition to supporting mobility, the electric wheelchair can also serve as a body support system, enabling users to continue engaging in productive activities while seated.  The implementation of this program began with interviews conducted with persons with disabilities and related partners to understand their needs, followed by the design, fabrication, and subsequent socialization and training on the use of the electric wheelchair for the target beneficiaries. The outcome of this effort is an electric wheelchair equipped with joystick controls. The wheelchair employs a rear-wheel drive system powered by two motors, each attached to a rear wheel, and a chain transmission system. Along with delivering the electric wheelchair to the PPID, this initiative aims to serve as a practical application of mechanical engineering knowledge, directly benefiting the community..
Pemanfaatan TIK Dalam Pembuatan Dokumen Pendukung Untuk Melamar Pekerjaan Pasca Kelulusan Siswa SMK Di Kab. Tanah Bumbu Rijal Surya Rahmany; Yongki Christandi Batubara; I Made Ivan Wiyarta Cakra Sujana; Gad Gunawan; Diniar Mungil Kurniawati; Chaerul Qalbi AM; Jefri Aldo; Muhammad Hariz Dedy Sayogi
AMMA : Jurnal Pengabdian Masyarakat Vol. 3 No. 11 : Desember (2024): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Vocational high school (SMK) students represent a level of vocational secondary education expected to fulfill the demand for technical labor at specific levels within the industry. However, current SMK graduates face challenges due to intense competition in securing employment. This community service initiative aims to enhance the skills of SMK students by focusing on the utilization of Information and Communication Technology (ICT) in the preparation of post-graduation documents. A case study was conducted at a private vocational high school (SMKS) in and state vocational high school (SMKN) in Tanah Bumbu Regency as an effort to prepare students to face the challenges of Industry 4.0. Through outreach activities, this initiative introduced the concept of community service and the benefits of ICT in document preparation. The methods employed aimed to achieve outcomes such as improving students' skills, applying ICT in preparing supporting documents for job applications, and enhancing students' competitiveness in the labor market. The results of the activities carried out showed an increase in participants' knowledge of curriculum vitae and job application letters. Survey results also indicated that the seminar was highly beneficial for participants in this community service activity through technical outreach.
Co-Authors Andre Amba Matarru Bagas Hendi Prasetya Chaerul Qalbi AM Djafar, Alfian Frans Ivan Christofel Hutabarat Gad Gunawan Jefri Aldo Kevin Hasiholan Lumban Tobing Kurniawati, Diniar Mungil Linda Muhammad Hariz Dedy Sayogi Razif Mahmudi Syahlie Rifqi Al Wafi Rijal Surya Rahmany Yonathan Parsaulian Lobo Silalahi Yongki Christandi Batubara Yongki Christandi Batubara