Research on Energy-Saving Design of Rural Building Wall in Qinba Mountains Based on Uniform Radiation Field

Table 3

The comprehensive outdoor temperature fluctuations (hourly) of Ankang area in the winter solstice.

Time	Outdoor comprehensive temperature (°C)				Outdoor air temperature (°C)
	South	East	West	North
1:00	−0.13	−0.13	−0.13	−0.13	1.90
2:00	−0.93	−0.93	−0.93	−0.93	1.10
3:00	−1.22	−1.22	−1.22	−1.22	0.80
4:00	−0.92	−0.92	−0.92	−0.92	1.10
5:00	−0.33	−0.33	−0.33	−0.33	1.70
6:00	−0.03	−0.03	−0.03	−0.03	2.00
7:00	−0.32	−0.32	−0.32	−0.32	1.70
8:00	−0.91	−0.91	−0.91	−0.91	1.10
9:00	−0.10	−0.06	−0.33	−0.33	0.70
10:00	1.42	1.33	0.98	0.98	0.80
11:00	4.06	3.56	3.11	3.11	1.70
12:00	8.97	6.33	5.76	5.76	3.20
13:00	14.18	7.81	8.52	7.81	5.10
14:00	13.91	9.47	11.27	9.47	7.20
15:00	18.67	9.94	16.28	9.94	8.80
16:00	16.27	9.68	16.93	9.68	9.70
17:00	8.59	7.85	9.00	7.85	9.40
18:00	6.20	6.20	6.20	6.20	8.40
19:00	5.14	5.14	5.14	5.14	7.30
20:00	4.57	4.57	4.57	4.57	6.70
21:00	4.58	4.58	4.58	4.58	6.70
22:00	4.48	4.48	4.48	4.48	6.60
23:00	3.98	3.98	3.98	3.98	6.10
0:00	3.49	3.49	3.49	3.49	5.60