Y
Young-Chull Ahn
Researcher at Pusan National University
Publications - 46
Citations - 1403
Young-Chull Ahn is an academic researcher from Pusan National University. The author has contributed to research in topics: Electrospinning & Air conditioning. The author has an hindex of 10, co-authored 44 publications receiving 1243 citations.
Papers
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Journal ArticleDOI
Production and dispersion stability of nanoparticles in nanofluids
Yujin Hwang,Jae-Keun Lee,Jong-Ku Lee,Young-Man Jeong,Seongir Cheong,Young-Chull Ahn,Soo Hyung Kim +6 more
TL;DR: In this article, various physical treatment techniques based on two-step method, including stirrer, ultrasonic bath and ultrasonic disruptor, were systematically tested to verify their versatility for preparing stable nanofluids.
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Investigation on characteristics of thermal conductivity enhancement of nanofluids
Yujin Hwang,Young-Chull Ahn,Hyun-Suk Shin,Chan Gyu Lee,Gyoo-Cheon Kim,Hyean-Cheal Park,Jaekeun Lee +6 more
TL;DR: In this paper, the thermal conductivity enhancement of water-based MWCNT nanofluid is increased up to 11.3% at a volume fraction of 0.01.
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Development of high efficiency nanofilters made of nanofibers
Young-Chull Ahn,Su-Eun Park,Gyoo-Cheon Kim,Yu Jin Hwang,Chan Gyu Lee,Hyun-Suk Shin,Jin-Choon Lee +6 more
TL;DR: In this paper, optimized conditions to produce nanofibers using Nylon 6 are investigated and the nylon 6 nanofilters with diameters ranging from several microns down to 100nm or less are designed and evaluated.
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Investigation of pore formation for polystyrene electrospun fiber: Effect of relative humidity
Gil-Tae Kim,Junseok Lee,Junseok Lee,Jin-Hyouk Shin,Jin-Hyouk Shin,Young-Chull Ahn,Yujin Hwang,Hee-Soo Shin,Jae-Keun Lee,Chang-Mo Sung,Chang-Mo Sung +10 more
TL;DR: In this paper, the surface morphology and pore formation of e-spun fiber have been studied by many variables that are involved in different polymer concentrations and solvent mixing ratios, such as relative humidity and solvent evaporation.
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An experimental study of the air-side particulate fouling in fin-and-tube heat exchangers of air conditioners
Young-Chull Ahn,Jae-Min Cho,Hee-Soo Shin,Yujin Hwang,Chang-Gun Lee,Jae-Keun Lee,Hyun-Uk Lee,Hyun-Uk Lee,Kang Tae-Wook,Kang Tae-Wook +9 more
TL;DR: In this paper, an experimental study was conducted to investigate the chronological performance variation such as pressure drop across a heat exchanger and cooling capacity due to the air-side particulate fouling of fin-and-tube heat exchangers for air conditioner evaporators used.