The demonstration and simulation of the application performance of the vanadium dioxide single glazing

As a typical thermochromic material, the vanadium dioxide (VO2) has a great potential for building energy efficiency development. In this study, the VO2 glazing's application performance was first demonstrated in full-size, and simulated with a software of high credibility. For a 2.9m×1.8m×1.8m low-mass room whose window's size is 1.65m×1.65m, the measured results showed that the room with the VO2 glazing saved 10.2–19.9% cumulative cooling load than that with an ordinary glazing during the demonstration. The application performance to a conventional residential room in the hot summer and warm winter zone was simulated in BuildingEnergy, a simulation software developed by the authors. The simulated results showed that the use of the VO2 glazing could save ∼9.4% electricity consumption. The effects of the window's orientation and the area ratio of window to wall were also discussed in this study. •The VO2 glazing's application performance was demonstrated and simulated.•The demonstration was performed in a full-size room with a 1.65m×1.65m window.•The simulation was conducted with a software of high credibility.•The results showed the use of the VO2 glazing could save cooling consumption.