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Calculation For Heat Losses Of Pipes And Cable Length |
Caculation For Heat Losses Of Pipes and Cable Length
1.Calculating By Check Table
(1) Conditions of pipe standard hea loss QbΔT=Tj-T0 Tj (maintaince temperature for media)T0（lowest ambient temperature）
On the basis of △T = Tj 一 T0、 DN,δ,check Table3-1 and find the caculated heat loss Qb per unit length.
Conditions of pipe standard hea loss(Qb):Carbon steel pipe,glass fiber thermal insulation, outdoor, and wind speed 9m/s.w/m |
Thermal insulation layer(mm) |
Difference in temperature
(℃) |
Pipeline internal diameter DN |
15 |
25 |
40 |
50 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
1/2" |
1" |
1.5" |
2" |
3" |
4" |
6" |
8" |
10" |
12" |
14" |
16" |
18" |
20" |
24" |
10 |
20 |
7.2 |
10.1 |
13.6 |
16.4 |
23.0 |
28.8 |
41.1 |
52.6 |
64.7 |
76.1 |
83.3 |
94.6 |
105.9 |
117.2 |
139.7 |
30 |
11.0 |
15.4 |
20.7 |
24.9 |
35.0 |
43.8 |
62.5 |
80.0 |
98.5 |
115.8 |
126.7 |
143.9 |
161.1 |
178.3 |
212.6 |
40 |
14.9 |
20.8 |
27.9 |
33.7 |
47.3 |
59.2 |
84.5 |
108.2 |
133.2 |
156.6 |
171.3 |
194.6 |
217.9 |
241.1 |
287.4 |
20 |
20 |
4.6 |
6.2 |
8.0 |
9.5 |
13.0 |
16.0 |
22.5 |
28.5 |
34.9 |
40.9 |
44.7 |
50.7 |
56.7 |
62.6 |
74.6 |
30 |
7.0 |
9.4 |
12.2 |
14.5 |
19.8 |
24.4 |
34.3 |
43.4 |
52.2 |
62.3 |
68.0 |
77.1 |
86.2 |
95.3 |
113.4 |
40 |
9.5 |
12.7 |
16.5 |
19.6 |
26.7 |
33.0 |
46.3 |
58.7 |
71.9 |
84.2 |
92.0 |
104.3 |
116.6 |
128.9 |
153.4 |
60 |
14.7 |
19.6 |
25.5 |
30.2 |
41.2 |
50.9 |
71.4 |
90.5 |
110.8 |
129.9 |
141.8 |
160.8 |
179.7 |
198.7 |
236.5 |
25 |
20 |
4.1 |
5.3 |
6.9 |
8.1 |
10.9 |
13.4 |
18.6 |
23.5 |
28.7 |
33.5 |
36.5 |
41.4 |
46.2 |
51.1 |
60.7 |
30 |
6.2 |
8.1 |
10.4 |
12.3 |
16.6 |
20.3 |
28.3 |
35.7 |
43.6 |
51.0 |
55.6 |
63.0 |
70.3 |
77.7 |
92.4 |
40 |
8.4 |
11.0 |
14.1 |
16.6 |
22.4 |
27.5 |
38.2 |
48.3 |
59.0 |
69.0 |
75.2 |
85.2 |
95.1 |
105.1 |
124.9 |
60 |
12.9 |
17.0 |
21.8 |
25.6 |
34.5 |
42.4 |
59.0 |
74.5 |
90.9 |
106.3 |
115.9 |
131.3 |
146.7 |
162.0 |
192.6 |
80 |
17.7 |
23.3 |
29.9 |
35.1 |
47.4 |
58.2 |
81.0 |
102.3 |
124.8 |
146.0 |
159.2 |
180.3 |
201.4 |
222.4 |
264.5 |
100 |
22.8 |
30.1 |
38.6 |
45.4 |
61.2 |
75.2 |
104.5 |
132.0 |
161.1 |
188.5 |
205.5 |
232.8 |
260.0 |
287.2 |
341.5 |
30 |
20 |
3.7 |
4.8 |
6.1 |
7.1 |
9.5 |
11.6 |
15.9 |
20.0 |
24.4 |
28.5 |
31.0 |
31.5 |
39.2 |
43.2 |
51.3 |
30 |
5.6 |
7.3 |
9.2 |
10.8 |
14.4 |
17.6 |
24.3 |
30.5 |
37.1 |
43.3 |
47.2 |
53.4 |
59.6 |
65.8 |
78.1 |
40 |
7.6 |
9.8 |
12.5 |
14.6 |
19.5 |
23.8 |
32.8 |
41.3 |
50.2 |
58.6 |
63.8 |
72.2 |
80.6 |
88.9 |
105.6 |
60 |
11.7 |
15.1 |
19.2 |
22.5 |
30.0 |
36.6 |
50.6 |
63.6 |
77.4 |
90.4 |
98.4 |
111.4 |
124.3 |
137.1 |
162.9 |
80 |
16.0 |
20.8 |
26.4 |
30.9 |
41.2 |
50.3 |
69.4 |
87.3 |
106.3 |
124.0 |
135.1 |
152.9 |
170.6 |
188.3 |
223.6 |
100 |
20.7 |
26.8 |
34.1 |
39.8 |
53.2 |
65.0 |
89.7 |
112.8 |
137.2 |
160.2 |
174.5 |
197.4 |
220.3 |
243.1 |
288.7 |
120 |
25.6 |
33.2 |
42.2 |
49.3 |
65.9 |
80.4 |
111.0 |
139.6 |
169.9 |
198.3 |
216.1 |
244.4 |
272.8 |
301.0 |
357.5 |
140 |
30.8 |
40.2 |
50.8 |
59.4 |
79.3 |
96.8 |
133.5 |
168.0 |
204.4 |
239.6 |
259.9 |
294.0 |
328.1 |
362.1 |
430.1 |
160 |
36.2 |
47.1 |
59.8 |
69.9 |
93.3 |
113.9 |
157.2 |
197.7 |
240.6 |
280.8 |
306.0 |
346.1 |
386.2 |
426.3 |
506.2 |
180 |
42.0 |
54.5 |
69.2 |
80.9 |
108.1 |
131.9 |
182.0 |
228.9 |
278.6 |
325.3 |
354.2 |
400.7 |
447.1 |
493.5 |
586.2 |
40 |
20 |
3.2 |
4.0 |
5.0 |
5.8 |
7.6 |
9.2 |
12.6 |
15.7 |
19.0 |
22.1 |
24.0 |
27.4 |
30.2 |
33.0 |
39.4 |
30 |
4.8 |
6.1 |
7.7 |
8.9 |
11.6 |
14.1 |
19.1 |
23.9 |
28.9 |
33.6 |
36.6 |
41.3 |
45.9 |
50.6 |
60.0 |
40 |
6.5 |
8.3 |
10.4 |
12.0 |
15.7 |
19.0 |
25.9 |
32.3 |
39.1 |
45.5 |
49.4 |
55.8 |
62.1 |
68.5 |
81.1 |
60 |
10.1 |
12.8 |
16.0 |
18.5 |
24.3 |
29.3 |
39.9 |
49.8 |
60.3 |
70.1 |
76.2 |
86.0 |
95.8 |
105.6 |
125.1 |
80 |
13.8 |
17.6 |
21.9 |
25.4 |
33.3 |
40.2 |
54.8 |
68.4 |
82.7 |
96.2 |
104.6 |
118.1 |
131.5 |
144.9 |
171.7 |
100 |
17.8 |
22.7 |
28.3 |
32.8 |
43.0 |
52.0 |
70.8 |
88.3 |
106.8 |
124.2 |
135.1 |
152.4 |
169.8 |
187.1 |
221.7 |
120 |
21.1 |
28.1 |
35.1 |
40.6 |
53.3 |
64.4 |
87.6 |
109.3 |
132.3 |
153.9 |
167.3 |
188.8 |
210.3 |
231.7 |
274.5 |
140 |
26.5 |
33.8 |
42.2 |
48.8 |
64.1 |
77.4 |
105.4 |
131.5 |
159.1 |
185.1 |
201.2 |
227.1 |
252.9 |
278.7 |
330.2 |
160 |
31.2 |
39.8 |
49.7 |
57.4 |
75.4 |
91.1 |
124.1 |
154.8 |
187.3 |
217.9 |
236.9 |
267.3 |
297.7 |
328.1 |
388.7 |
180 |
36.2 |
46.0 |
57.5 |
66.5 |
87.3 |
105.5 |
143.7 |
179.3 |
216.9 |
252.2 |
274.3 |
309.5 |
344.7 |
379.9 |
450.1 |
50 |
20 |
2.8 |
3.6 |
4.4 |
5.0 |
6.5 |
7.8 |
10.5 |
13.1 |
15.7 |
18.2 |
19.8 |
22.3 |
24.7 |
27.2 |
32.2 |
30 |
4.3 |
5.4 |
6.7 |
7.7 |
9.9 |
11.9 |
16.0 |
19.9 |
23.9 |
27.7 |
30.1 |
33.9 |
37.6 |
41.4 |
48.5 |
40 |
5.9 |
7.3 |
9.1 |
10.4 |
13.4 |
16.1 |
21.7 |
26.9 |
32.3 |
37.5 |
40.7 |
45.8 |
50.9 |
56.0 |
66.2 |
60 |
9.0 |
11.3 |
14.0 |
16.0 |
20.7 |
24.8 |
33.4 |
41.4 |
49.9 |
57.8 |
62.7 |
70.6 |
78.5 |
86.3 |
102.1 |
80 |
12.4 |
15.5 |
19.1 |
22.0 |
28.5 |
34.1 |
45.9 |
56.8 |
68.4 |
79.3 |
86.1 |
96.9 |
107.7 |
118.5 |
140.1 |
100 |
16.0 |
20.1 |
24.7 |
28.4 |
36.7 |
44.0 |
59.2 |
73.4 |
88.3 |
102.4 |
111.1 |
125.1 |
139.1 |
153.0 |
180.9 |
120 |
19.8 |
24.8 |
30.6 |
35.1 |
45.5 |
54.4 |
73.3 |
90.9 |
109.4 |
126.8 |
137.6 |
154.9 |
172.2 |
189.5 |
224.0 |
140 |
23.8 |
29.9 |
36.8 |
42.3 |
54.7 |
65.6 |
88.2 |
109.3 |
131.6 |
152.5 |
165.5 |
186.4 |
207.2 |
227.9 |
269.4 |
160 |
28.2 |
35.2 |
43.4 |
49.8 |
64.4 |
77.2 |
103.9 |
128.7 |
154.9 |
179.5 |
194.9 |
219.4 |
243.9 |
268.3 |
317.2 |
180 |
32.5 |
40.7 |
50.2 |
57.6 |
74.6 |
89.4 |
102.3 |
149.0 |
179.4 |
207.9 |
225.6 |
254.0 |
282.4 |
310.7 |
367.2 |
80 |
20 |
2.3 |
2.8 |
3.4 |
3.8 |
4.8 |
5.7 |
7.4 |
9.0 |
10.7 |
12.3 |
13.3 |
14.9 |
16.4 |
18.0 |
21.1 |
30 |
3.5 |
4.3 |
5.2 |
5.8 |
7.3 |
8.6 |
11.3 |
13.7 |
16.3 |
18.7 |
20.2 |
22.6 |
25.0 |
27.4 |
32.1 |
40 |
4.8 |
5.8 |
7.0 |
7.9 |
9.9 |
11.6 |
15.2 |
18.5 |
22.0 |
25.3 |
27.3 |
30.6 |
33.8 |
37.0 |
43.5 |
60 |
7.4 |
9.0 |
10.8 |
12.1 |
15.3 |
17.9 |
23.5 |
28.6 |
34.0 |
39.0 |
42.1 |
47.1 |
52.1 |
57.1 |
67.0 |
80 |
10.1 |
12.3 |
14.8 |
16.6 |
20.9 |
24.6 |
32.2 |
39.2 |
46.6 |
53.5 |
54.8 |
64.7 |
71.5 |
78.3 |
92.0 |
100 |
13.0 |
15.9 |
19.1 |
21.5 |
27.0 |
31.8 |
41.6 |
50.6 |
60.2 |
69.1 |
74.6 |
83.5 |
92.3 |
101.2 |
118.8 |
120 |
16.1 |
19.7 |
23.6 |
26.6 |
33.5 |
39.3 |
51.5 |
62.7 |
74.5 |
85.5 |
92.4 |
103.4 |
114.3 |
125.3 |
147.1 |
140 |
19.4 |
23.6 |
28.4 |
32.0 |
40.3 |
47.3 |
62.9 |
75.4 |
89.6 |
102.9 |
111.2 |
124.4 |
137.5 |
150.7 |
176.9 |
160 |
22.9 |
27.8 |
33.4 |
37.7 |
47.4 |
55.7 |
72.9 |
88.8 |
105.5 |
121.1 |
130.9 |
146.4 |
161.9 |
177.4 |
208.3 |
180 |
26.5 |
32.2 |
38.7 |
43.7 |
54.9 |
64.5 |
84.4 |
102.8 |
122.2 |
140.3 |
151.5 |
169.5 |
187.5 |
205.4 |
241.2 |
(2) Calculate the actual heat loss Os according to the following formula Qs
计算公式：Qs = K1 · K2 · K3 · Qb ·················· (3-1)Equation Qs = K1 · K2 · K3 · Qb ·················· (3-1)
Thereinto:
Qs ----- actual heat loss per unit length pipe,W/m
Qb ----- standard heat loss per unit length pipe,W/m
K1 ----- correct factor of thermal insulation material's coefficient
K2 ----- correct factor of pipe material
K3 ----- correct factor of environmental conditions
Table 3-2: Coefficient of thermal insulation material and Correct factor K1
Thermal insulation material |
10℃ Thermal Conduct Coefficient(W/m· k) |
Correct Factor K1 |
Extra-fine Glass Fiber ( Shell Wool Felt ） |
0.036 |
1.0 |
Rock Wool (Shell,Wool Felt) |
0.044 |
1.22 |
Complex Silicate |
0.035 |
0.97 |
Polyurethane Foam Plastic |
0.024 |
0.67 |
Mineral Wool |
0.038 |
1.06 |
Aluminum Silicate |
0.056 |
1.56 |
Pearl Shell Rock Wool |
0.047 |
1.31 |
Calcium Silicate |
0.054 |
1.50 |
Asbestos cord |
0.084 |
2.33 |
litaflex |
0.04～0.048 |
1.11～1.33 |
Polyethane Foam Plastic |
0.035 |
0.97 |
Table 3-3:Correct Factor K2 of Pipe Material
| Pipe Material |
Correct Factor K2 |
Carbon Steel |
1.0 |
Copper |
0.9 |
Stainless Steel |
1.25 |
Plastic |
1.5 |
|
Table3-4 Correct Factor K3 of Environmental Conditions
| Environmental Conditions |
Correct Factor K3 |
Outdoor Wind Speed |
1.10 |
Outdoor Wind Speed |
1.0 |
Outdoor Wind Speed |
0.95 |
Indoor |
0.9 |
|
2.Calculation By Formula
Loss Formula Calculation:
2兀λ(Tj —To）
Qs＝------------------- …………………. （3-2）
ln[（d+2δ）÷d]
Herinto：
Qs—Actual pipe heat loss，Kcal/h·m或W/m
Tj—Media maintenance temperature，℃
T0—Lowest ambient temperature，℃
λ—Coefficient of thermal insulation atBR>Outer，Kcal/h·m·℃或W/m·℃
d —diameter of pipe，mm
δ—Thickness of thermal insuliation，mm
3.Calculation For Heat Losses Of Tanks
(1) a.According to the outer size of containers or tanks, calculate the total surface area.
S=πD（R+H）
S---total surface area m
D---outside diameter m
R---radius m
H---height m
b. Both end is cylindrical vessel
S=πD（2R+H）
H---height m
c．Rectangularvessel:
S=[(L×W)+(L×W)+(W×H)] ×2; m2
(2) According to material and thickness of thermal insulation, temperature TO and Tj, calculate the surfaceheat heat loss per unit area by referring to Table 5.
(3) Calculate the Total Heat Loss:
QZ=（1.4～1.6）Q0·S …（3-3），W
Hereinto：
Q0— Heat loss per Unit area
S—Total surface area of loss，m2。
(4) Calculate actually need for Cable Length.
Ly = Qy / P0+Lw……（3-4）
Hereinto:
Qy—Total heat loss of conatiner。
P0—Wattage per meter suitable to the highest maintenance temperature for electric heating cable, W/m. Refer to table
Lw—Installation length on the basis of the number of junction boxes, generally 1m for each junction box
Table :Heat Loss of Tanks(Qb) Unit:w/m2
Thermal Insulation Layer
|
Temperature Maintained(℃) |
Conditions |
| Material |
Thick
-ness mm |
5 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
120 |
| Polyurethane |
38 |
22.311 |
25.08 |
30.79 |
36.77 |
43.02 |
49.55 |
56.38 |
63.52 |
70.98 |
78.77 |
86.91 |
104.18 |
Temperature
-40℃
Wind Speed
15m/s |
Ambient Temperature Min |
| 50 |
17.25 |
19.39 |
23.81 |
28.43 |
33.27 |
38.32 |
43.61 |
49.14 |
54.19 |
60.95 |
67.20 |
80.63 |
| 75 |
11.71 |
13.16 |
16.16 |
19.30 |
22.58 |
26.02 |
29.61 |
33.37 |
37.29 |
41.39 |
45.68 |
54.82 |
| 100 |
8.86 |
9.96 |
12.23 |
14.61 |
17.09 |
19.69 |
22.41 |
25.29 |
28.25 |
31.36 |
34.60 |
41.51 |
| 125 |
7.14 |
8.02 |
9.85 |
11.76 |
13.77 |
15.86 |
18.05 |
20.34 |
22.73 |
25.24 |
27.85 |
33.43 |
| 150 |
5.96 |
6.70 |
8.23 |
9.84 |
11.52 |
13.27 |
15.10 |
17.02 |
19.02 |
21.11 |
23.30 |
27.97 |
| Glass Fiber |
38 |
35.91 |
40.15 |
48.79 |
57.77 |
66.89 |
76.39 |
86.02 |
95.92 |
106.08 |
116.63 |
127.38 |
149.77 |
| 50 |
28.07 |
31.39 |
38.14 |
45.08 |
52.20 |
59.62 |
67.14 |
74.87 |
82.81 |
91.06 |
99.46 |
116.97 |
| 75 |
19.27 |
21.54 |
26.18 |
30.95 |
35.90 |
40.93 |
46.10 |
51.41 |
56.87 |
62.49 |
68.31 |
80.36 |
| 100 |
14.64 |
16.43 |
19.97 |
23.60 |
27.33 |
31.16 |
35.09 |
39.17 |
43.37 |
47.65 |
52.05 |
61.24 |
| 125 |
11.86 |
13.26 |
16.12 |
19.05 |
22.06 |
25.16 |
28.38 |
31.66 |
35.02 |
38.48 |
42.03 |
49.45 |
| 150 |
9.92 |
11.09 |
13.53 |
15.99 |
18.52 |
21.12 |
23.79 |
26.53 |
29.35 |
32.25 |
35.23 |
41.45 |
| Mineral Wool |
38 |
44.14 |
49.32 |
59.95 |
70.83 |
81.81 |
93.19 |
104.61 |
116.36 |
128.34 |
140.42 |
152.17 |
178.08 |
| 50 |
34.65 |
38.72 |
47.16 |
55.62 |
64.25 |
73.19 |
82.17 |
91.32 |
100.74 |
110.23 |
120.01 |
139.86 |
| 75 |
23.99 |
26.81 |
32.53 |
38.44 |
44.49 |
50.59 |
56.81 |
63.14 |
69.59 |
76.23 |
82.93 |
96.76 |
| 100 |
18.34 |
20.49 |
24.86 |
29.38 |
34.01 |
38.67 |
43.43 |
48.27 |
53.21 |
58.24 |
63.41 |
73.93 |
| 125 |
14.83 |
16.57 |
20.18 |
23.80 |
27.50 |
31.27 |
35.12 |
39.11 |
43.11 |
47.19 |
51.34 |
59.86 |
| 150 |
12.51 |
13.97 |
16.96 |
20.00 |
23.11 |
26.28 |
29.51 |
32.81 |
36.17 |
39.62 |
43.11 |
50.26 |
| Aluminum Silicate |
38 |
52.62 |
59.00 |
72.38 |
85.96 |
99.95 |
114.59 |
129.45 |
114.73 |
160.56 |
176.68 |
193.21 |
227.48 |
| 50 |
41.63 |
46.69 |
57.07 |
67.92 |
79.01 |
90.95 |
102.37 |
114.49 |
126.94 |
139.70 |
152.84 |
180.06 |
| 75 |
28.95 |
32.47 |
39.77 |
47.34 |
55.08 |
63.06 |
71.28 |
79.74 |
88.44 |
97.38 |
106.55 |
125.61 |
| 100 |
22.26 |
24.97 |
30.53 |
36.28 |
42.21 |
48.34 |
54.74 |
61.24 |
67.93 |
74.81 |
81.87 |
96.54 |
| 125 |
18.02 |
20.22 |
24.72 |
29.43 |
34.31 |
39.29 |
44.42 |
49.70 |
55.13 |
60.72 |
66.45 |
78.38 |
| 150 |
15.16 |
17.00 |
20.87 |
24.82 |
28.86 |
33.05 |
37.37 |
41.81 |
46.39 |
51.08 |
55.92 |
65.96 |
| Polyurethane |
38 |
7.87 |
10.61 |
16.30 |
22.35 |
28.61 |
35.17 |
42.04 |
49.23 |
56.83 |
64.70 |
72.86 |
90.13 |
Temperature
-10℃
Wind Speed
15m/s |
| 50 |
6.04 |
8.22 |
12.62 |
17.30 |
22.16 |
27.24 |
32.56 |
38.13 |
44.03 |
50.13 |
56.46 |
70.06 |
| 75 |
4.14 |
5.58 |
8.58 |
11.80 |
15.06 |
18.55 |
22.18 |
25.97 |
29.94 |
34.10 |
38.44 |
47.71 |
| 100 |
3.12 |
4.21 |
6.52 |
8.91 |
11.45 |
14.07 |
16.83 |
19.71 |
22.72 |
25.87 |
29.17 |
36.20 |
| 125 |
2.51 |
3.43 |
5.27 |
7.20 |
9.22 |
11.34 |
13.56 |
15.88 |
18.31 |
20.85 |
23.47 |
29.14 |
| 150 |
2.13 |
2.87 |
4.41 |
6.02 |
7.71 |
9.48 |
11.33 |
13.27 |
15.30 |
17.45 |
19.67 |
24.40 |
| Glass Fiber |
38 |
12.13 |
16.42 |
25.16 |
34.00 |
43.25 |
52.61 |
62.24 |
72.27 |
82.47 |
92.95 |
103.72 |
126.31 |
| 50 |
9.53 |
12.79 |
19.61 |
26.61 |
33.72 |
41.18 |
48.72 |
56.47 |
64.45 |
72.65 |
81.15 |
98.85 |
| 75 |
6.58 |
8.83 |
13.53 |
18.29 |
23.26 |
28.31 |
33.49 |
38.83 |
43.31 |
50.05 |
55.86 |
68.00 |
| 100 |
5.06 |
6.79 |
10.32 |
13.95 |
17.68 |
21.60 |
25.56 |
29.63 |
33.82 |
38.12 |
42.56 |
51.81 |
| 125 |
4.07 |
5.46 |
8.37 |
11.31 |
14.34 |
17.45 |
20.64 |
23.93 |
27.32 |
30.80 |
34.38 |
41.89 |
| 150 |
3.40 |
4.57 |
7.00 |
9.46 |
11.99 |
14.56 |
17.34 |
20.10 |
22.94 |
25.86 |
28.87 |
35.15 |
| Mineral Wool |
38 |
15.01 |
20.12 |
30.51 |
41.27 |
52.33 |
63.57 |
75.05 |
76.63 |
98.41 |
110.62 |
122.84 |
148.06 |
| 50 |
11.65 |
15.88 |
24.07 |
32.57 |
41.14 |
49.97 |
59.01 |
68.12 |
77.39 |
87.00 |
96.63 |
116.49 |
| 75 |
8.21 |
11.01 |
16.69 |
22.49 |
28.52 |
34.58 |
40.84 |
47.15 |
53.68 |
60.23 |
66.91 |
80.61 |
| 100 |
6.23 |
8.35 |
12.77 |
17.27 |
21.82 |
26.46 |
31.24 |
36.07 |
41.07 |
46.09 |
51.20 |
61.69 |
| 125 |
5.10 |
6.84 |
10.37 |
13.97 |
17.65 |
21.48 |
25.38 |
29.24 |
33.22 |
37.29 |
41.42 |
49.96 |
| 150 |
4.27 |
5.72 |
8.68 |
11.79 |
14.89 |
18.06 |
21.29 |
24.58 |
27.93 |
31.35 |
42.82 |
42.00 |
| Aluminum Silicate |
38 |
18.13 |
24.39 |
37.39 |
50.90 |
64.82 |
79.21 |
93.88 |
109.18 |
124.71 |
140.78 |
157.28 |
191.24 |
| 50 |
14.38 |
19.35 |
29.66 |
40.39 |
51.34 |
62.75 |
74.54 |
86.54 |
98.87 |
111.64 |
124.76 |
151.79 |
| 75 |
10.02 |
13.49 |
20.76 |
28.16 |
35.95 |
43.86 |
52.02 |
60.02 |
69.17 |
78.05 |
87.17 |
106.12 |
| 100 |
7.75 |
10.43 |
15.92 |
21.69 |
27.58 |
33.72 |
40.00 |
46.54 |
53.19 |
60.04 |
67.06 |
81.66 |
| 125 |
6.25 |
8.42 |
12.95 |
17.58 |
22.44 |
27.38 |
32.48 |
37.80 |
43.21 |
48.75 |
54.48 |
66.35 |
| 150 |
5.33 |
7.17 |
10.94 |
14.85 |
18.88 |
23.05 |
27.39 |
31.82 |
36.37 |
41.05 |
45.86 |
55.86 |
| Polyurethane |
38 |
|
|
|
5.47 |
11.61 |
17.87 |
22.44 |
31.33 |
38.57 |
46.15 |
54.10 |
71.12 |
Temperature
+20℃
Wind Speed |
| 50 |
|
|
|
4.35 |
9.08 |
13.97 |
19.11 |
24.50 |
30.27 |
36.22 |
42.46 |
55.81 |
| 75 |
|
|
|
3.04 |
6.23 |
9.59 |
13.22 |
16.94 |
20.85 |
24.95 |
29.24 |
38.43 |
| 100 |
|
|
|
2.29 |
4.78 |
7.36 |
10.06 |
12.89 |
15.98 |
19.05 |
22.32 |
29.34 |
| 125 |
|
|
|
1.84 |
3.90 |
6.00 |
8.20 |
10.51 |
12.84 |
15.41 |
18.06 |
23.73 |
| 150 |
|
|
|
1.54 |
3.26 |
5.01 |
6.85 |
8.78 |
10.81 |
12.93 |
15.15 |
19.90 |
Glass Fiber |
38 |
|
|
|
8.23 |
16.71 |
25.45 |
34.45 |
43.73 |
53.30 |
63.41 |
73.61 |
94.95 |
| 50 |
|
|
|
6.37 |
13.16 |
20.05 |
27.32 |
34.74 |
42.33 |
50.16 |
58.45 |
75.40 |
| 75 |
|
|
|
4.48 |
9.26 |
14.10 |
19.08 |
24.41 |
29.75 |
35.24 |
40.90 |
52.56 |
| 100 |
|
|
|
3.51 |
7.13 |
10.86 |
14.69 |
18.65 |
22.90 |
27.13 |
31.37 |
40.45 |
| 125 |
|
|
|
2.83 |
5.74 |
8.88 |
12.02 |
15.25 |
18.58 |
22.01 |
25.54 |
32.93 |
| 150 |
|
|
|
2.37 |
4.88 |
7.43 |
10.05 |
12.76 |
15.66 |
18.56 |
21.53 |
27.67 |
| Mineral Wool |
38 |
|
|
|
9.66 |
19.53 |
29.88 |
40.61 |
51.29 |
62.17 |
73.26 |
84.91 |
108.21 |
| 50 |
|
|
|
7.78 |
15.73 |
23.85 |
32.42 |
40.94 |
49.62 |
58.72 |
67.77 |
86.37 |
| 75 |
|
|
|
5.32 |
11.12 |
16.86 |
22.91 |
28.93 |
35.07 |
41.32 |
47.89 |
61.03 |
| 100 |
|
|
|
4.32 |
8.59 |
13.03 |
17.69 |
22.33 |
27.07 |
32.03 |
36.97 |
47.11 |
| 125 |
|
|
|
3.48 |
7.04 |
10.67
9.08 |
14.37 |
18.29 |
22.17 |
26.13 |
30.16 |
38.43 |
| 150 |
|
|
|
2.92 |
5.86 |
9.08 |
12.23 |
15.44 |
18.72 |
22.06 |
25.46 |
32.44 |
| Aluminum Silicate |
38 |
|
|
|
11.80 |
24.02 |
37.32 |
50.57 |
64.22 |
78.28 |
92.73 |
108.04 |
139.02 |
| 50 |
|
|
|
9.58 |
19.49 |
30.00 |
40.01 |
52.09 |
63.49 |
75.22 |
87.28 |
112.35 |
| 75 |
|
|
|
6.83 |
13.89 |
21.55 |
29.21 |
37.11 |
45.52 |
53.18 |
62.44 |
80.40 |
| 100 |
|
|
|
5.20 |
10.95 |
16.70 |
22.83 |
28.99 |
35.35 |
41.88 |
48.60 |
62.58 |
| 125 |
|
|
|
4.35 |
8.99 |
13.72 |
18.59 |
23.81 |
29.02 |
34.38 |
39.90 |
51.37 |
| 150 |
|
|
|
3.77 |
7.67 |
11.70 |
15.85 |
20.13 |
24.54 |
29.08 |
33.74 |
43.44 |
|
|
|
