Transparent Glass Window with Energy-Saving and Heat Insulation Capabilities

2011 ◽  
Vol 314-316 ◽  
pp. 10-16 ◽  
Author(s):  
Ching Mu Chen ◽  
Shen Yuar Chen ◽  
Wei Ching Chuang ◽  
Jen Yu Shieh
Keyword(s):  
Energy Saving ◽  
Heat Insulation ◽  
Thermal Flux ◽  
Film Coating ◽  
Dielectric Materials ◽  
Shielding Effect ◽  
Infrared Light ◽  
Light Penetration ◽  
Transparent Glass ◽  
Carbon Reduction

This paper proposes capabilities of transparent glass window design with energy-saving and heat insulation for carbon reduction issues. An optical thin film coating technology is used for coating multilayered dielectric materials on the transparent glass to achieve an infrared ray shielding effect; especially to prevent rising temperature easily of indoor room. That is infrared ray incidence from outdoor and the thermal flux effect of the transparent window influent the indoor room temperature. In winter, the outdoor temperature is increased more easily by infrared ray incidence. However, the heat insulation window allows 98% of visible light penetration through the window and also allows 90% of infrared light reflection and roughly 10% of infrared light penetration into indoor.

scholarly journals Research on Low-Brightness and High-Reflective Coatings Suitable for Buildings in Tropical Areas

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 829
Author(s):  
Xian Rong ◽  
Lichao Jiao ◽  
Xiangfei Kong ◽  
Guangpu Yuan
Keyword(s):  
Energy Saving ◽  
Heat Insulation ◽  
Residential Building ◽  
Maximum Temperature ◽  
Kuala Lumpur ◽  
Nano Tio2 ◽  
Insulation Coating ◽  
Tropical Areas ◽  
Saving Effect ◽  
Reflective Coatings

In this article, we mixed hollow glass beads with nano-TiO2 and iron oxide red in a certain proportion to prepare a low-brightness, high-reflective, safe, and durable cooling coating throughout the experiments. The coating is suitable for energy-saving in tropical areas. To discuss the energy saving effects of the coating on an exterior envelope in tropical areas, a comparative analysis for two scenario models of a two-story residential building in Kuala Lumpur, Malaysia was conducted. The results indicated that the heat reflective insulation coating could reduce the exterior envelope surface temperature effectively, and the maximum temperature change was about 6–8 °C. Through calculations, it was found that the annual energy saving rate was 12.9%, which showed that the energy saving effect of the heat insulation coating was obvious in Kuala Lumpur. The brightness of the coating was less than 50%, and its comfort and safety met the requirements.

scholarly journals Performance Analyses of Temporary Membrane Structures: Energy Saving and CO2 Reduction through Dynamic Simulations of Textile Envelopes

2018 ◽  
Vol 10 (7) ◽  
pp. 2548 ◽  
Author(s):  
Mariangela De Vita ◽  
Paolo Beccarelli ◽  
Eleonora Laurini ◽  
Pierluigi De Berardinis
Keyword(s):  
Energy Saving ◽  
Environmental Sustainability ◽  
Co2 Reduction ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Point Of View ◽  
Thermal Mass ◽  
Membrane Structures ◽  
Dynamic Simulations ◽  
Carbon Reduction

The aim of this research, carried out in collaboration with Maco Technology Inc., was to analyse the energy performance of temporary textile structures that are often used to host itinerant events. This paper illustrates the dynamic simulations carried on the Ducati Pavilion, designed by Maco Technology, which hosted Ducati staff during the different stages of the Superbike World Championship. Specific aspects relating to the structural/constructive system of the project were also analysed. The theme of energy saving and carbon reduction is of great importance in temporary and itinerant structures and environmental sustainability in relation to the materials used, storage, re-use, mode of transport and ability to respond efficiently to the climatic conditions of the installation sites is an important aspect. The Ducati Pavilion was modelled and analysed from an energy point of view using Design Builder software. Ways of improving performance were analysed under summer conditions. The paper focuses on the importance of optimizing the performance of textile envelopes: the methodology proposed allows visible savings in terms of energy consumption and achieves good levels of environmental comfort in temporary buildings with low thermal mass structure.

scholarly journals DEVELOPMENT OF ULTRA-SHORT HIGH INTENSITY LASERS FOR THE VISIBLE SPECTRA RANGE

2020 ◽  
Vol 17 (35) ◽  
pp. 739-752
Author(s):  
Hayder J. ABDULRAHMAN ◽  
Suzan B. MOHAMMED
Keyword(s):  
High Intensity ◽  
Laser Processing ◽  
Near Infrared ◽  
Laser Pulses ◽  
Dielectric Materials ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Visible Spectra ◽  
Short Laser Pulses ◽  
Micro Tools

Ultra-short laser pulses are particularly suitable for processing micro tools made of ultra-hard and dielectric materials. Ultra-short laser pulses provide a contact-free and precise fabrication of heat-sensitive materials such as visible spectra range. Visible spectra range has unique properties, which makes it an essential material in the tool, jewelry, and semiconductor industries. The processing of visible spectra range by ultra-short laser pulses is complex, as visible and near-infrared light is generally not absorbed. However, the intensity of ultra-short laser pulses is extremely high, so that the absorption scales nonlinearly with the intensity and, thus, visible or near-infrared light can be absorbed. The complexity also results from many partially interdependent process variables, such as the repetition rate, pulse overlap, track overlap, and scan speed. Excellent knowledge of the process is, therefore, essential for the production of micro tools. To make the laser processing accessible to a broader user field, the operator can be supported by a computer-aided design (CAD). The aim of this research was to the modeling of an ultra-short high-intensity laser for the visible spectra range in different environments of the angle of incidence, scanning speed, pulse, and track overlap. The experimental process included ultra-short pulsed laser processing of visible spectra range and surface analysis concerning modifications and ablation of the ultra-short laser. Ablation volumes were analyzed for single pulses, multi-pulses, and pockets. Pump-probe experiments reveal transient optical properties such as transmission or reflectivity. It was concluded that ultraviolet laser pulses are best suited to induce damage or modifications to visible spectra range surfaces. Additionally, shorter wavelengths have further advantages such as potentially longer Rayleigh lengths and smaller spot sizes.

scholarly journals Design of Transparent Metasurfaces Based on Asymmetric Nanostructures for Directional and Selective Absorption

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3751
Author(s):  
Dong Wu ◽  
Yang Meng ◽  
Chang Liu
Keyword(s):  
Solar Radiation ◽  
Energy Saving ◽  
Noble Metals ◽  
Near Infrared ◽  
Low Cost ◽  
Infrared Light ◽  
Manufacturing Cost ◽  
Selective Absorption ◽  
Metal Insulator Metal ◽  
Peak Value

Maximizing the solar heat gain through windows in winter and minimizing the solar radiation entering the room in summer are of great significance for the energy saving of buildings. Here, we present a new idea for transparent metasurfaces, based on asymmetric metal/insulator/metal (MIM) nanostructures, which can be switched back and forth between absorbing and reflecting solar radiation by reversing the sample orientation. Owing to the fundamental mode of a low-quality-factor resonance, a selective near-infrared absorption is obtained with an absorption peak value of 90% upon front illumination. The average solar absorption (45%) is about 10% higher than that (35%) of reported transparent absorbers. The near-infrared light is also strongly and selectively reflected upon back illumination and a reflection peak value above 70% is observed. Meanwhile, the average visible transmission of the metasurface is above 60%, which is about 1.6 times that (36%) of previous transparent metasurface absorbers. In addition, Cu material can replace the noble metals in this work, which will greatly reduce the manufacturing cost. Owing to the attractive properties of directional and selective absorption, passive operation mode, and low cost of the materials, the metasurfaces have promising prospects in building energy saving or other solar applications where surface transparency is desirable.

scholarly journals Comparative Whole Building Life Cycle Assessment of Energy Saving and Carbon Reduction Performance of Reinforced Concrete and Timber Stadiums—A Case Study in China

2020 ◽  
Vol 12 (4) ◽  
pp. 1566 ◽  
Author(s):  
Yu Dong ◽  
Tongyu Qin ◽  
Siyuan Zhou ◽  
Lu Huang ◽  
Rui Bo ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Reinforced Concrete ◽  
Energy Saving ◽  
Carbon Emissions ◽  
Building Materials ◽  
Energy Use ◽  
Rc Buildings ◽  
Carbon Reduction ◽  
The Government

Many stadiums will be built in China in the next few decades due to increasing public interest in physical exercise and the incentive policies issued by the government under its National Fitness Program. This paper investigates the energy saving and carbon reduction performance of timber stadiums in China in comparison with stadiums constructed using conventional building materials, based on both life cycle energy assessment (LCEA) and life cycle carbon assessment (LCCA). The authors select five representative cities in five climate zones in China as the simulation environment, simulate energy use in the operation phase of stadiums constructed from reinforced concrete (RC) and timber, and compare the RC and timber stadiums in terms of their life cycle energy consumption and carbon emissions. The LCEA results reveal that the energy saving potential afforded by timber stadiums is 11.05%, 12.14%, 8.15%, 4.61% and 4.62% lower than those of RC buildings in “severely cold,” “cold,” “hot summer, cold winter,” “hot summer, warm winter,” and “temperate” regions, respectively. The LCCA results demonstrate that the carbon emissions of timber stadiums are 15.85%, 15.86%, 18.88%, 19.22% and 22.47% lower than those of RC buildings for the regions above, respectively. This demonstrates that in China, timber stadiums have better energy conservation and carbon reduction potential than RC stadiums, based on life cycle assessment. Thus, policy makers are advised to encourage the promotion of timber stadiums in China to achieve the goal of sustainable energy development for public buildings.

scholarly journals Simulation and measurement of transcranial near infrared light penetration

2015 ◽  
Author(s):  
Lan Yue ◽  
Manuel Monge ◽  
Mehmet H. Ozgur ◽  
Kevin Murphy ◽  
Stan Louie ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Light Penetration ◽  
Near Infrared Light
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