Showing papers by "Young I. Cho published in 2005"
TL;DR: In this article, a new gliding arc (GA) system using a reverse vortex flow (tornado) in a cylindrical reactor (gliding arc in tornado, or GAT), as used to preserve the main advantages of traditional GA systems and overcome their main drawbacks.
Abstract: The present article reports a new gliding arc (GA) system using a reverse vortex flow (“tornado”) in a cylindrical reactor (gliding arc in tornado, or GAT), as used to preserve the main advantages of traditional GA systems and overcome their main drawbacks The primary advantages of traditional GA systems retained in the present GAT are the possibility to generate transitional plasma and to avoid considerable electrode erosion In contrast to a traditional GA, the new GAT system ensures much more uniform gas treatment and has a significantly larger gas residence time in the reactor The present article also describes the design of the new reactor and its stable operation regime when the variation of GAT current is very small These features are understood to be very important for most viable applications Additionally the GAT provides near-perfect thermal insulation from the reactor wall, indicating that the present GAT does not require the reactor wall to be constructed of high-temperature materials The
109 citations
TL;DR: In this article, the effects of the treatment number of physical water treatment on the surface tension of hard water were studied. And the results showed that the number of treatments of the PWT increased, a phenomenon that was consistent with the results in the dye flow-visualization experiment.
93 citations
TL;DR: In this paper, the authors examined the validity of a physical water treatment concept using a pulsed-power system, which was based on an induced electric field via Faraday's law.
46 citations
TL;DR: In this paper, a longitudinally positioned solenoid coil installed on an outer surface of a pipe was used for electronic descaling, where electric current flows through the electric coils and a magnetic field is generated whose direction is perpendicular to that of the flow direction.
9 citations
TL;DR: In this paper, preliminary experimental results on using nanofluids to enhance the thermal performance of heat pipes were reported, which indicated an average 12.5% decrease in the overall thermal resistance of the heat pipe using 3% vol concentration.
2 citations
Patent•
10 Aug 2005
TL;DR: In this article, a regenerative type of refrigeration system recirculates a mixture of R-134a, R-32 and R-125 through first and second series condensers.
Abstract: A regenerative type of refrigeration system recirculates a mixture of R-134a, R-32 and R-125 through first and second series condensers. A first vortex tube is connected to the inlet of the first condenser and a second vortex tube is connected at the outlet of the first condenser to provide a vapor path from a compressor through the condensers to an expansion device and evaporator. The liquid inlet of a first vortex tube and a liquid outlet of a second vortex tube are connected together to define a closed recirculation path around the first condenser for liquified R-134a.
1 citations