根据API-2000表9定义环境因子。
English Units:
|
配置 |
电导 (BTU/hr ft2 F) |
保温厚度 (in) |
F系数 |
|---|---|---|---|
|
裸金属罐 |
--- |
0 |
1.0 |
|
保温储罐 |
4.0 |
1 |
0.3 |
|
保温储罐 |
2.0 |
2 |
0.15 |
|
保温储罐 |
1.0 |
4 |
0.075 |
|
保温储罐 |
0.67 |
6 |
0.05 |
|
保温储罐 |
0.50 |
8 |
0.375 |
|
保温储罐 |
0.40 |
10 |
0.300 |
|
保温储罐 |
0.33 |
12 |
0.025 |
|
混凝土或防火 |
--- |
--- |
查看注C |
|
用水设施 |
--- |
--- |
1.0 |
|
减压和排空 |
--- |
--- |
1.0 |
|
埋地储罐 |
--- |
--- |
0.0 |
|
地上覆土储罐 |
--- |
--- |
0.03 |
|
远离储罐的蓄水 |
--- |
--- |
0.5 |
公制单位:
|
配置 |
电导 (Watts/m2 K) |
保温厚度 (cm) |
F系数 |
|---|---|---|---|
|
裸金属罐 |
--- |
0 |
1.0 |
|
保温储罐 |
22.7 |
2.5 |
0.3 |
|
保温储罐 |
11.4 |
5 |
0.15 |
|
保温储罐 |
5.7 |
10 |
0.075 |
|
保温储罐 |
3.8 |
15 |
0.05 |
|
保温储罐 |
2.8 |
20 |
0.375 |
|
保温储罐 |
2.3 |
25 |
0.300 |
|
保温储罐 |
0.19 |
30 |
0.025 |
|
混凝土或防火 |
--- |
--- |
查看注C |
|
用水设施 |
--- |
--- |
1.0 |
|
减压和排空 |
--- |
--- |
1.0 |
|
埋地储罐 |
--- |
--- |
0.0 |
|
地上覆土储罐 |
--- |
--- |
0.03 |
|
远离储罐的蓄水 |
--- |
--- |
0.5 |