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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Journal of Environmental Engineering and Sustainable Technology
Oyong Novareza
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Mechanical Engineering

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THERMAL COMFORT STUDY IN CONVERTING PROCESS OF PLASTICS MANUFACTURING INDUSTRY Sugiono Sugiono; Oyong Novareza; Ryan Fardian
Journal of Environmental Engineering and Sustainable Technology Vol 3, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (818.834 KB) | DOI: 10.21776/ub.jeest.2017.003.02.5

Abstract

Thermal comfort is one of environment factors that can have a significant impact on workers performance. For a better thermal comfort, several factors that affect thermal conditions should be considered. Air temperature is a factor that give significant effect on thermal conditions. This paper is study about thermal comfort in a building for converting process at plastics manufacturing industry located in Malang. During the day, temperature on that building can reach as high as 36 °C. CFD (Computational Fluid Dynamics) simulations is use to determine the air properties inside the building. Thermal comfort experienced by workers through this study was based on PMV (Predicted Mean Vote) model and PPD (Predicted Percentage of Dissatisfied) model. The result of this study shows that thermal comfort in building of converting process can be increased by reduced heat sources on that building. Thermal comfort can be said increased when PMV and PPD value are decreased. After improvement recommendations is given, the PMV value for existing conditions in range 1.83 to 2.82 is decreased into range 1.63 to 2.18, while the PPD value for existing conditions in range 68.9% to 98% is decreased into range 58.2% to 84.2%.
OPTIMASI PROSES PARAMETER PEMOTONGAN PLASMA ARC CUTTING PADA LOGAM ALUMINIUM MENGGUNAKAN METODE TAGUCHI Abdul Hamid; Oyong Novareza; Teguh Dwi Widodo
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2018): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 9 2018
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.209 KB)

Abstract

Tujuan penelitian ini yaitu untuk mengetahui pengaruh variasi kuat arus dan gas flow rate terhadap lebar celah alur pemotongan menggunakan cutting plasma pada Aluminium 5083. Metode penelitian yang digunakan ialah rancangan penelitian eksperimental. Teknik analisis data menggunakan analisis metode Taguchi Anova. Analisis statistik tersebut digunakan untuk mengatahui kombinasi parameter yang optimum serta kontribusi setiap parameter. Penerapan metode Taguchi ini dalam optimasi parameter proses pemotongan plasma arc cutting menghasilkan 3 faktor terkontrol yaitu kuat arus, tekanan gas, dan jarak pemotongan dan faktor respon adalah kekasaran (SR), lebar kerf, dan conicity. Berdasarkan analisis Taguchi setiap faktor respons memiliki urutan faktor terkontrol yang berbeda – beda. Jumlah kontribusi untuk setiap variabel respon pada gambar pada kekasaran logam (SR), kuat arus memiliki kontribusi sebesar 93 %, jarak pemotongan 6.01% dan gas 0.9%. Selanjutnya variabel respon yang lain kerf, jarak pemotongan memiliki kontribusi sebesar 85%  diikuti variabel yang lain. Pada conicity kontribusi yang terbesar adalah jarak pemotongan dengan nilai prosentase 66.06% diikuti yang lain. Kata kunci : kuat arus, gas flow rate, lebar kerf, Aluminium, Cutting Plasma, Taguchi, ANOVA
Co-Authors ABDUL HAMID Ryan Fardian Sugiono Sugiono Teguh Dwi Widodo