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45 results on '"Lee, Shin-Ku"'

12. Preparation of activated carbons from raw and biotreated agricultural residues for removal of volatile organic compounds

Author

Hsi, Hsing-Cheng, Horng, Richard S., Pan, Tai-An, and Lee, Shin-Ku

Subjects
Volatile organic compounds -- Control, Agricultural wastes -- Usage, Carbon, Activated -- Production processes, Environmental services industry, Environmental issues, Science and technology
Abstract

ABSTRACT Activated carbons with diverse physical and chemical properties were produced from four agriculture residues, including raw barley husk, biotreated barley husk, rice husk, and pistachio shell. Results showed that [...]

Published
2011
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23. Full-scale evaluation of fire-resistant building integrated photovoltaic systems with different installation positions of junction boxes.

Author

Huang, Yen-Chieh, Lee, Shin-Ku, Chan, Chi-Chang, and Wang, Shui-Jinn

Subjects
FIRE resistant materials, PHOTOVOLTAIC power systems, CONSTRUCTION materials, CONSTRUCTION cost estimates, SURFACE temperature
Abstract

Building integrated photovoltaic (BIPV) systems are a promising strategy to integrate photovoltaic (PV) systems with building materials to reduce construction costs and add aesthetic features. In this study, a fire test in accordance with ISO 834-1:1999, CNS 14803-2010 and ISO 3008:2007 to provide the standard heating curve was carried out to investigate the fire-resistant characteristics based on the breaking behaviour and surface temperature distribution of type I and type II BIPV modules. The BIPV modules tested have both open and hidden junction-box (J-box) designs, with the aim of reducing fire risks. Our results show that the proposed type II BIPV module could resist the simulated room fire test for about 12 min without reducing any risk with regard to the J-box. Furthermore, the type II BIPV module could resist a fire test at temperatures of up to ∼1000℃ for 60 min with better compartment functionality when refractory glasses are employed. The BIPV fire test data reported in this study can help to improve the design and development of BIPV systems. [ABSTRACT FROM AUTHOR]

Published
2018
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44. Thermal performance and durability properties of the window glazing with exterior film(s).

Author

Lee, Shin Ku, Chen, Hsuan-Jui, Fan, Kuo-Shun, Hsi, Hsing-Cheng, and Horng, Richard S.

Subjects
BUILT environment, PARTICULATE matter, BUILDINGS & the environment, ENVIRONMENTAL engineering of buildings, VENTILATION, ARCHITECTURE
Abstract

Solar control film is usually positioned on the interior side of the window to reduce heat radiation into buildings. This work, in contrast, investigates the thermal performance and durability properties of window glazing with film on the exterior side and glazing with an additional TiO2 layer, as a protective film, on the exterior side. A small-sized hot-box was developed to evaluate the performance of glass samples: low-E glass, clear glass with solar film and tinted glass with TiO2 coating. It was concluded that the glass with coating facing toward outdoor could result in a reduction of interior surface temperature by 2℃–7℃. The thermal discomfort caused by these exterior films for the occupants would therefore be lowered. Experiments on surface properties found that heat treatment could provide improved durability properties for low-E and TiO2 glass samples. Adding another TiO2 layer to the low-E or solar films was found to exhibit even lower interior temperatures. An energy analysis showed that the heat transfer rate to the building inside was reduced by 25.8% for TiO2/solar film on the exterior compared to the low-E glass with film facing inside. TiO2/solar film placed on the exterior side is therefore highly recommended for window glazing by this study. [ABSTRACT FROM AUTHOR]

Published
2014
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45. Pressure influences on CO2reaction with cyclohexylamine using ionic liquid as reaction medium and catalyst

Author

Horng, Richard S., Lee, Shin-Ku, Hsu, Wu-Te, and Wu, Tai-Ang

Abstract

AbstractInserting carbon dioxide (CO2) into ammonia molecules to produce urea is a traditional CO2utilization method. An ionic liquid (IL), 1-butyl-3-methylimidazolium bromide ([Bmim]Br), was used as reaction medium and [Bmim]Br/KOH as catalyst. This study investigates CO2carbonylation of cyclohexylamine and its reaction performance in a number of low- and high-pressure CO2/IL systems. The reaction yield was greatly increased as pressure ranges changed from 15–50 bar to 80–100 bar; the physiochemical properties of substrates and catalyst were greatly affected by CO2in supercritical state. The yield was improved from 69% at 30 bar to 91.6% at 100 bar, much better than a previous study result of 53.5%, but as pressures further increased, a significant decrease was observed. The reaction activation energy was calculated to be 3.942 and 4.354 kcal/mol in mild and supercritical conditions. This process shows a low threshold reaction energy and great potential for industrial applications to store CO2in amine molecular structures.

Published
2016
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