干球温度 |
干湿差(干球温度减去湿球温度) |
||||
1.0 ℃ |
2.0 ℃ |
3.0 ℃ |
4.0 ℃ |
5.0 ℃ |
|
-5 ℃ |
77% |
54% |
32% |
11% |
— |
0.0 ℃ |
82% |
65% |
47% |
31% |
15% |
5.0 ℃ |
86% |
71% |
58% |
45% |
32% |
10.0 ℃ |
88% |
76% |
65% |
54% |
44% |
15.0 ℃ |
90% |
80% |
70% |
61% |
52% |
20.0 ℃ |
91% |
82% |
74% |
66% |
58% |
25.0 ℃ |
92% |
83% |
76% |
68% |
61% |
30.0 ℃ |
93% |
86% |
79% |
73% |
67% |
35.0 ℃ |
93% |
87% |
81% |
75% |
69% |
干湿球温度计是用两个相同的温度计并列制成的,在使用时,其中一个温度计下端的玻璃泡包着湿布,因为水蒸发时要吸热,所以这个温度计的读数要比另一个温度计读数低。某天干湿球温度计的读数如右图所示,相对湿度表如下表,则:
干球温度 |
干湿差 |
|||
1.0℃ |
2.0℃ |
3.0℃ |
4.0℃ |
|
15.0℃ |
90% |
80% |
70% |
61% |
20.0℃ |
91% |
82% |
74% |
66% |
25.0℃ |
92% |
83% |
76% |
68% |
30.0℃ |
93% |
86% |
79% |
73% |