Abstract
Five windows such as white glass, Low-E glasses and intelligent glasses are employed for simulation of heating and cooling energy consumptions in five typical cities of China by the software TRNSYS 16. The result shows that it is the most energy saving for the doubled glass when the VO2 films are deposited on the inside surface of the outer pane. And it is 84.7% of energy saving compared with white glass. But the heating energy consumption is the highest. This is because the transition temperature of real intelligent glass is too high and the solar heat gain coefficient is very small when the glass is in the cold state. On this basis, the property of intelligent glass is improved from the theoretical level. The result shows that it can be the most effective way of energy saving when emissivity is 0, solar transmittance is 100% in the cold state; visible light transmittance is 100%, infrared and ultraviolet light transmission rate is 0 in the hot state. Because of the technology limitation, it is hard to lower the transition temperature to below 20°C. The transition temperature of the film should be lower and the emissivity higher as far as possible.
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References
He Y F, Xu G, Zhu J, et al. Research progress on VO2 based thermochromic smart glass (in Chinese). Nanomater Struct, 2008, 45(7): 387–391
Barreca D, Depero L E, Franzato E, et al. Vanadyl precursors used to modify the properties of vanadium oxide thin films obtained by chemical vapor deposition. J Electrochem Soc, 1999, 146(2): 551–558
Parkin I P, Binions R, Piccirillo C, et al. Thermochromic coatings for intelligent architectural glazing. J Nano Res, 2008, 2: 1–20
Vernardou D, Pemble M E, Sheel D W. Vanadium oxides prepared by liquid injection MOCVD using vanadyl acetylacetonate. Surf Coat Technol, 2004, 188–189(1–3): 250–254
Takahashi I, Hibino M, Kudo T. Thermochromic properties of double-doped VO2 thin films prepared by a wet coating method using polyvanadate-based sols containing W and Mo or W and Ti. Jpn J Appl Phys, 2001, 40(3): 1391–1395
Burkhardt W, Christmann T, Meyer B K, et al. W- and F-doped VO2 films studied by photoelectron spectrometry. Thin Solid Films, 1999, 345(2): 229–235
Vernardou D, Pemble M E, Sheel D W. Tungsten-doped vanadium oxides prepared by direct liquid injection MOCVD. Chem Vap Deposit, 2007, 13(4): 158–162
Batista C, Ribeiro R M, Teixeira V. Synthesis and characterization of VO2-based thermochromic thin films for energy-efficient windows. Nanoscale Res Lett, 2011, 6: 301–307
Binions R, Piccirillo C, Palgrave R G, et al. Hybrid aerosol assisted and atmospheric pressure CVD of gold-doped vanadium dioxide. Chem Vap Deposit, 2008, 14: 33–39
Mlyuka N R, Niklasson G A, Granqvist C G. Mg doping of thermochromic VO2 films enhances the optical transmittance and decreases the metal-insulator transition temperature. Appl Phys Lett, 2009, 95(17): 171909
Carlos B, Teixeira V, Ribeiro R M. Synthesis and characterization of V1−xMoxO2 thermochromic coatings with reduced transition temperatures. J Nanosci Nanotechnol, 2010, 10(2): 1393–1397
Saeli M, Piccirillo C, Parkin I P, et al. Energy modelling studies of thermochromic glazing. Energy Buildings, 2010, 42(10): 1666–1673
Saeli M, Piccirillo C, Parkin I P, et al. Nano-composite thermochromic thin films and their application in energy-efficient glazing. Sol Energy Mater Sol Cells, 2010, 94: 141–151
Saeli M, Piccirillo C, Parkin I P, et al. Optimisation of thermochromic thin films on glass; Design of intelligent windows. Sci Technol, 2010, 75: 79–90
Xie Y. Measurement study and apparatus development on solar heat gain coefficient of window (in Chinese). Master Degree Thesis. Tianjin: Tianjin University, 2006. 1–73
Li H P, Hu B. Calculation and analysis of U value for Low-E glass units (in Chinese). Glass & Enamel, 2010, 38(1): 7–13
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Xu, X., Wu, X., Zhao, C. et al. Simulation and improvement of energy consumption on intelligent glasses in typical cities of China. Sci. China Technol. Sci. 55, 1999–2005 (2012). https://doi.org/10.1007/s11431-012-4854-1
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DOI: https://doi.org/10.1007/s11431-012-4854-1