Analysis and Research on the Thermal Properties of Energy-efficient Building Glass: A Case Study in PVB Laminated Glass

A new kind of PVB-laminated glass is introduced as an energy-efficient building glass. Based on tests and calculations of the shading coefficients of flat glass, LOW-E coated glass and PVB-laminated glass with different thickness, their effects on room base temperature and cooling load of the residential buildings in the hot-summer-warm-winter zone are simulated and analyzed. Compared with flat glass, the PVB laminated glass shields 44 percent of the solar radiation from entering the room and reduces 40 percent of the shading coefficient. At the same time, 28 percent of the cooling load, 21 percent of installed capacity and 8.6 percent of full-load operation time can be saved.