Mathematical Modeling of Double-Skin Facade in Northern Area of China

Table 4

The performance of wall.

External structure coefficient type	Heat transfer (w/m^2⋅k)	Remark
Concrete walls-Jane-85	0.486	20 mm cement mortar + 200 mm reinforced concrete + 85 mm expanded perlite + 20 mm no cement fiberboard
Plating Low-e film insulating glass curtain wall	2.1	6 (Low-e) + 9 mm hollow + 6, the solar transmittance of 33%, and the reflectance 26%
Double-skin glass curtain wall	1.14	Outer layer of 8 mm tempered + 400 mm cavity + inner plated Low-e membrane 24 mm hollow glass