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All Journal Logic : Jurnal Rancang Bangun dan Teknologi JAMETECH
I Ketut Suherman
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Automotive Engineering Computer Science & IT Education Energy Engineering Mechanical Engineering

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ANALISIS KEBOCORAN PADA INSTALASI PIPA TERTUTUP I Ketut Suherman; Achmad Wibolo
Logic : Jurnal Rancang Bangun dan Teknologi Vol 13 No 1 (2013): March
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.311 KB)

Abstract

Plumbing adalah seni dan teknologi pemipaan dan peralatan untuk menyediakan air bersih ke tempat yang dikehendaki; baik dalam kualitas, kuantitas, dan kontinuitas yang memenuhi syarat serta pembuangan air kotor dari tempat-tempat tertentu tanpa melupakan bagian tertentu yang sangat penting agar mencapai kondisi higienis dan kenyamanan yang diinginkan. Di lapangan sering ditemukan kebocoran pada suatu instalasi, sehingga perbaikan harus segera dilakukan agar fungsi menyalurkan tidak terganggu. Akibat itu semua membutuhkan lagi waktu dan material yang digunakan. Pengujian dilaksanakan pada suatu sistem instalasi pipa tertutup dengan cara memvariasi panjang specimen pipa (185 mm, 194, mm, dan 200 mm). dan untuk panjang specimen ulir (13 mm, 19 mm, dan 25 mm). Selanjutnya dipasangkan pada komponen sambungan. Pengamatan dilaksanakan pada titik-titik pengamatan yang telah ditentukan, yaitu pada pipa A dengan titik pengamatan A1 dan A2, serta pada pipa B dengan titik pengamatan B1, B2, dan B3. Hasil penelitian ini menyatakan bahwa kebocoran tidak terjadi bila pada pipa A panjang spesimen pipa mulai dari 192 mm hingga 195 mm dan panjang spesimen ulir mulai dari 18 mm hinnga 22 mm, sedangkan untuk pipa B panjang spesimen pipa mulai dari 196 mm hingga 198 mm dan panjang spesimen ulir mulai dari 18 mm hinnga 22 mm. Perubahan panjang spesimen pipa, panjang spesimen ulir dan karakteristik sambungan pengaruhi terjadinya kebocoran.
A Analisa Alat Tanam Padi Dengan Sistem Gerak Putaran: Analysis of Rice Planting Tools with Rotary Motion System Satrya Wibawa, Made Ardikosa; Anak Agung Gede Pradnyana Diputra; I Wayan Suma Wibawa; I Wayan Marlon Managi; I Nyoman Suparta; I Ketut Suherman
Journal of Applied Mechanical Engineering and Green Technology Vol. 4 No. 1 (2026): April
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v4i1.1-7

Abstract

This study aims to design and develop a circular motion rice planting tool with high efficiency and effectiveness, particularly for narrow rice fields commonly found in Bali. The developed tool features a stainless steel frame, a manual drive system using a rotating spindle, a chain and sprocket transmission system, and a planting mechanism consisting of a main shaft equipped with a mechanical seedling clamp. The tool is ergonomically designed to reduce farmers’ physical workload and simplify maintenance, as it does not require additional energy sources such as fuel or electricity. Performance testing was conducted directly in rice fields located in Subak Ulun Suwi, Gianyar Regency. The testing method compared the time required for rice planting using traditional manual methods and the developed tool. Observation parameters included working time, ease of operation, labor requirements, and consistency of seedling planting results. The results showed that the circular motion rice planting tool significantly improved time efficiency. The average planting time decreased from about 24 minutes per 100 m² using manual methods to approximately 13 minutes per 100 m² using the tool, indicating a time efficiency improvement of nearly 50%. Additionally, the tool reduced farmers’ physical strain because the planting process no longer required prolonged bending. However, some technical challenges were still identified, particularly related to inconsistent numbers of seedlings planted at certain field points. These issues were influenced by variations in mud field conditions, differences in seedling size, and the stability of the clamping mechanism during operation. Overall, the circular motion rice planting tool shows strong potential to improve productivity and planting efficiency, especially in narrow and terraced rice fields. Further development is needed to enhance planting mechanism stability and ensure consistent seedling placement, enabling the tool to become an affordable and practical agricultural mechanization solution suitable for Bali.
Co-Authors Achmad Wibolo Anak Agung Gede Pradnyana Diputra I Nyoman Suparta I Wayan Marlon Managi I Wayan Suma Wibawa Satrya Wibawa, Made Ardikosa