Energy-Saving Design of Building Envelope Based on Multiparameter Optimization

Table 6

The remaining initial input data.

Variable	Symbol	Minimum	Maximum
Window height (m)		2	4
Window width (m)		10	18.25
Thickness of concrete (m)		0.2	0.3
Thickness of mortar (m)		0.02	0.06
The thickness of insulating material (m)		0.01	0.06
The thickness of the window pane (m)		0.003	0.012
Heat transfer coefficient of concrete		0.1	1.74
Heat transfer coefficient of the whole window with closed space and window frame area accounting for 20%		1.07	5.8
Heat transfer coefficient of concrete		0.76	0.93
Heat transfer coefficient of insulating material		0.025	0.08
Set indoor temperature in summer (°C)		24	28
Floor reflection ratio		0.1	0.5
Wall reflection ratio		0.3	0.8
The reflection ratio of window glass		0.07	0.84
Ceiling reflection ratio		0.6	0.9
The total transmittance of the window		0.4	0.84
Density of concrete		300	2500
Density of mortar		300	1800
The density of insulating material		20	180
Set the indoor temperature in winter (°C)		18	24