PENINGKATAN HEAT TRANSFER MENGGUNAKAN DELTA WINGLET VORTEX GENERATOR PADA SALURAN

*Arvian Dwi Prasetyo  -  Department of Mechanical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia
Syaiful Syaiful  -  Department of Mechanical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia
M.S.K. Tony Suryo Utomo  -  Department of Mechanical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275, Indonesia

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Abstract

Peningkatan efisiensi penukar kalor penting untuk memenuhi permintaan industri. Salah satu cara meningkatkan laju perpindahan kalor adalah dengan menggunakan generator vortex, yang menciptakan aliran turbulen untuk memperbaiki perpindahan kalor antara permukaan dan fluida. Eksperimen dilakukan untuk meneliti kinerja dari perforated delta winglet vortex generators (PDW VGs). Kecepatan aliran divariasikan dari 0,4 m/s hingga 2 m/s pada interval 0,2 m/s serta memvariasikan sudut serang. Performance evaluation criteria (PEC) merupakan output dari eksperimen dengan (j/j0)/(f/f0). Hasil eksperimen ini membuktikan PEC pada PDW VGs lebih tinggi dibandingkan DW VGs pada nilai Reynolds 8.800.

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Keywords: nilai reynolds; performance evaluation criteria(pec); vortex generators
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