关键词: 呼吸幕墙, 蓄能式幕墙, 热工性能, 节能降耗, 建筑围护结构

Abstract: In this paper, a new envelope of buildings, the breathing-type glazing curtain wall with energy storage function, is put forward based on the concept of low-energy consumption buildings, and the analysis on the bottleneck related to prevent heat loss in enclosed structures of building and the weakness concerned with thermal performance of building envelopes.The structure is studied and designed. Considering the energy conservation of traditional glazing curtain wall with thermal channel, a new thermal calculation model for breathing-type glazing curtain with energy storage function is established.Combined with the calculation results of engineering examples, the characteristic parameters of the new envelop is analyzed in detail.The results show that heat transfer coefficients of the new envelop in winter and summer are within 1 W·m^-2·K^-1 and superior to those of traditional glazing curtain wall with thermal channel.The time of heat lag in summer and winter is triple and twice that of traditional curtain wall.In the region with heavy solar radiation intensity and small wind speed, the heat insulation and time of heat lag in summer are worse, but it is helpful to heat preservation and time of heat lag in winter.The new envelop has the characteristics of simple structure and easy operation, which may be helpful to the development of glazing curtain wall in the future.

Key words: breathing-type curtain wall, energy storage curtain wall, thermal characteristics, energy saving, building envelop