Environmental Engineering Reference
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Chemical industrial furnace, continuous type
Metal heat treatment furnace, continuous type
35
30
25
20
15
10
5
Electric
furnace
Combustion
furnace
Electric
furnace
Combustion
furnace
4
3
2
8
6
4
2
0
1
0
0.01
0.1
1
10
100
1000
0.1
1
10
100
1000
10000
Heat capacity in log.scale ton/h
Heat capacity in log.scale ton/h
(a)
Chemical industrial furnace in the
chemical industry
(b)
Metal heat treatment furnace in the iron
and steel industry
Drying furnace, continuous type
Drying furnace, continuous type
25
8
Electric
furnace
Combustion
furnace
Electric
furnace
Combustion
furnace
20
6
15
4
10
2
5
0
0
0.1
1
10
100
0.1
1
10
100
1000
Heat capacity in log.scale ton/h
Heat capacity in log.scale ton/h
(c)
Drying furnace in the chemical industry
(d)
Metal heating furnace in the iron and
steel industry
FIGURE A.3
Heating capacity and unit energy consumption of various furnaces.
6
70
60
5
50
40
30
20
4
3
2
1
10
0
0
0.1
1
10
100
1000
0.1
1
10
100
1000
Heat capacity in log.scale ton/h
Heat capacity in log.scale ton/h
(a) Fuel unit consumption
(b) Heat efficiency
FIGURE A.4
Heating capacity of metals continuous heating furnace.
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