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All Journal Abdi Masya Teknika
Farit Ardiyanto
Sekolah Tinggi Teknologi Warga Surakarta
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KAJIAN PENGARUH PERLAKUAN PANAS TERHADAP VISKOSITAS OLI KENDARAAN SAE 20w-50 5w-40 15w-40 joko prihatin; Farit Ardiyanto; Slamet Pambudi
Teknika Vol 7 No 3 (2022): April 2022
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.419 KB) | DOI: 10.52561/teknika.v7i3.162

Abstract

Potensi kurang seimbang dengan permasalahan selama ini adalah dalam hal keterbatasan pemahaman penggunaan oli terhadap nilai perawatan yang diterapkan. Sehingga bisa merugikan distributor oli, pengguna dan juga masyarakat luas dan lingkungan alam. Tujuan dari penelitian ini adalah untuk mengetahui perubahan angka viskositas terkecil dan terbesar yang diakibatkan oleh perubahan suhu kerja kendaraan. Metode yang diterapkan adalah menggunakan pemanasan lokal pada oli tersebut, selanjutnya dimasukkan ke dalam bejana untuk diketahui kecepatan nilai jatuh bola baja. Analisa data menerapkan grafis dan perhitungan teoritis. Hasil yang dicapai adalah perubahan angka viskositas terkecil yang diakibatkan oleh perubahan suhu kerja kendaraan adalah jenis oli F.O SAE 15w-40 yaitu 9.84-8.75=1.09 kg/m.s. Perubahan angka viskositas terbesar yang diakibatkan oleh perubahan suhu kerja kendaraan adalah jenis oli F.O SAE 20w-50 yaitu 19.62-8.75=10.87 kg/m.s.   Kata kunci: viskositas, sae, pemanasan.
DESAIN MESIN LAMINAR AIR FLOW (LAF) DENGAN MENGGUNAKAN HMI PADA PT. ENTRI JAYA MAKMUR SURAKARTA Farit Ardiyanto; Slamet Pambudi; Joko Yunianto Prihatin
Abdi Masya Vol 7 No 1
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abdimasya.v7i1.637

Abstract

Laminar Air Flow (LAF) is a crucial device in microbiology laboratories, pharmaceutical facilities, and healthcare facilities, helping maintain sterile, contamination-free work areas. However, the LAF product was previously manufactured by PT. Entri Jaya Makmur was based on mechanical switches and a simple character LCD display, resulting in inefficiency, minimal operational monitoring features, and low market appeal. This community service project aims to improve the product's functionality and sales value by modernizing the control system with a Nextion-based touchscreen Human-Machine Interface (HMI). This HMI not only replaces analog buttons but also adds various features such as timer settings, operating hours, HEPA filter life alarms, and UV light safety indicators, enhancing user safety and ease of operation. The attractive graphic design and more intuitive interface have been shown to improve perceived quality and consumer preference. The implementation results showed a significant increase in sales, from just one unit per month to three units in the first month of the new design's launch. Thus, HMI-based LAF modernization has proven effective in increasing the competitiveness of local products, supporting domestic market penetration, and contributing to the provision of healthcare facilities that meet national standards and align with the domestic medical device independence program.
Co-Authors Joko Yunianto Prihatin Slamet Pambudi