CLTDs for sunlighted walls for north latitudes
From ASHRAE (1989), with permission
Values shown for Group G walls
Wall facing |
Solar time, h |
Hour of Max. CLTD |
Min. CLTD |
Max. CLTD |
Max. - Min. CLTD |
|||||||||||||||||||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
|||||
N |
3 |
2 |
1 |
0 |
-1 |
2 |
7 |
8 |
9 |
12 |
15 |
18 |
21 |
23 |
24 |
24 |
25 |
26 |
22 |
15 |
11 |
9 |
7 |
5 |
18 |
-1 |
26 |
27 |
NE |
3 |
2 |
1 |
0 |
-1 |
9 |
27 |
36 |
39 |
35 |
30 |
26 |
26 |
27 |
27 |
26 |
25 |
22 |
18 |
14 |
11 |
9 |
7 |
5 |
9 |
-1 |
39 |
40 |
E |
4 |
2 |
1 |
0 |
-1 |
11 |
31 |
47 |
54 |
55 |
50 |
40 |
33 |
31 |
30 |
29 |
27 |
24 |
19 |
15 |
12 |
10 |
8 |
6 |
10 |
-1 |
55 |
56 |
SE |
4 |
2 |
1 |
0 |
-1 |
5 |
18 |
32 |
42 |
49 |
51 |
48 |
42 |
36 |
32 |
30 |
27 |
24 |
19 |
15 |
12 |
10 |
8 |
6 |
11 |
-1 |
51 |
52 |
S |
4 |
2 |
1 |
0 |
-1 |
0 |
1 |
5 |
12 |
22 |
31 |
39 |
45 |
46 |
43 |
37 |
31 |
25 |
20 |
15 |
12 |
10 |
8 |
5 |
14 |
-1 |
46 |
47 |
SW |
5 |
4 |
3 |
1 |
0 |
0 |
2 |
5 |
8 |
12 |
16 |
26 |
38 |
50 |
59 |
63 |
61 |
52 |
37 |
24 |
17 |
13 |
10 |
8 |
16 |
0 |
63 |
63 |
W |
6 |
5 |
3 |
2 |
1 |
1 |
2 |
5 |
8 |
11 |
15 |
19 |
27 |
41 |
56 |
67 |
72 |
67 |
48 |
29 |
20 |
15 |
11 |
8 |
17 |
1 |
72 |
71 |
NW |
5 |
3 |
2 |
1 |
0 |
0 |
2 |
5 |
8 |
11 |
15 |
18 |
21 |
27 |
37 |
47 |
55 |
55 |
41 |
25 |
17 |
13 |
10 |
7 |
18 |
0 |
55 |
55 |