5.3 Natural Ventilation
177
Triangle
T i
(°C)
h i
(m)
Centroid
coordinates
T i-1 · h i −T i · h i-1
Area of the triangle
T cg
h cg
1
5
0
–
15
0
0
6
50
750
5
0
8.67
16.67
−250
250
2
6
50
–
15
0
−750
10
175
2625
6
50
10.33
75.00
−550
662.5
3
15
0
–
10
175
2625
16
175
−1050
15
0
13.67
116,67
−2625
525
Weighted
mean values
11.26
80.07
Total area
1437.5
Or, also:
0
25
50
75
100
125
150
175
200
0
2
4
6
8
10 12 14 16 18
3
h
(m)
T ( o C)
2
1
Triangle
T i
(°C)
h i
(m)
Centroid coordinates T i-1 · h i −T i · h i-1
Area of the
triangle
T cg
h cg
1
5
0
–
(continued)