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Bi-axially oriented PEN film has superior performance in terms of dielectric strength, mechanical strength, heat resistance, anti-hydrolysis, etc. Thus, it has been widely used for energy storage applications, such as capacitors and batteries. In this paper, we attempted to increase the dielectric strength of PEN films by electron beam irradiation. PEN films of two different thickness, 6 µm and 12...
Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily. Based on the general photoelectrothermal theory for LED systems, the coefficient for the reduction of luminous efficacy with junction temperature is first related to the characteristic temperature of the LED. Then, a noncontact method for estimating the internal junction temperature T and junction-case...
The paper analysed a sustainable building which is demonstration project at its conceptual phase. The analysis includes the building' s energy-consumption level, the climate of where the building seats, building orientation, architectual enviornment and energy-saving measures, etc. Thus, a rational sustainable building design decision which can avoid an unsustainable building at the very begining,...
In this work, the excimer-laser-induced crystallization of amorphous silicon (a-Si) films was investigated numerically and experimentally. This study had investigated the effects of irradiating energy density on the grain size and structure by scanning electron microscopy (SEM). In the surface microstructure analysis of the laser-irradiated area, the critical fluences (full-melt threshold, FMT) between...
This article introduces the three kinds of solar thermal power systems existing in the world, and analyzes the key technologies affecting the continuous and stable running of solar thermal power plant (STPP). According to the fact that STPP can't operate stably and continuously, the article puts forward a new running mode with an auxiliary boiler. The auxiliary boiler plays three roles in the system,...
This paper describes the design of a liquid desiccant air conditioning system using low-grade heat resource, which employs environmental-friendly, ozone-safe working substance - LiCl solution as the desiccant and is able to treat the ambient air at a high temperature 35degC to the air conditioning supply air at a low temperature 18degC. It can handle both latent and sensible heat load of the room...
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