Auteur Yunho Hwang
Documents disponibles écrits par cet auteur (8)
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Nicholas Fernandez, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |A CO2 heat pump water heater breadboard facility was built and a performance evaluation was conducted to investigate the effect of ambient temperature and hot water temperature on the overall coefficient of performance (COP) during full tank hea[...]
Article : texte imprimé
Jiazhen Ling, Auteur ; Osamu Kuwabara, Auteur ; Yunho Hwang, Auteur |CO2 and R410A desiccant wheel (DW)-assisted separate sensible and latent cooling (SSLC) air-conditioning systems were tested under the AHRI standard. At a 50 °C regeneration temperature, the coefficient of performance (COP) of the vapor compress[...]
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Xing Xu, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |As global warming has raised more critical concerns in recent years, refrigerants with high global warming potentials (GWP) are facing the challenges of being phased out. R410A, with a GWP of 2088, has been widely used in residential air-conditi[...]
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Xing Xu, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |This paper reviews the major research on refrigerant injection techniques in detail. Liquid and vapor refrigerant injection techniques are discussed and compared. The current research on refrigerant injection techniques falls into two categories[...]
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Kai Wang, Auteur ; Magnus Eisele, Auteur ; Yunho Hwang, Auteur |Due to the environmental damage caused by HFC refrigerants, there is an increasing universal interest to research environmentally friendly fluids in refrigerants and alternative approaches to the traditional DX refrigeration system. These refrig[...]
Article : texte imprimé
Jiazhen Ling, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |The advantage of separating sensible and latent cooling (SSLC) via the use of separate cycles is saving energy by raising the evaporating temperature of the sensible cooling process. In this study, the pertinent characteristics of the SSLC syste[...]
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Hoseong Lee, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |Thermal and hydraulic performance of a sinusoidal corrugated plate heat exchanger (PHX) was investigated for the application of a low temperature lift heat pump (LTLHP), which requires unique operating conditions. The water-side heat transfer co[...]
Article : texte imprimé
Xing Xu, Auteur ; Yunho Hwang, Auteur ; Reinhard Radermacher, Auteur |Recent research on vapor injection technique has been mostly focused on performance improvement using different system configurations. The flash tank cycle typically shows better performance than the internal heat exchanger cycle. However, the f[...]
