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Guideline --- Waste & Wall Temperature
Standard / Target for Exhaust Gas Temperature of Boilers (°C)
Purpose
of use
Solid fuel
Liquid fuel
Gas fuel
Blast furnace
gas & others
Fixed bed
Fluid'd bed
Power utility
-
-
145 / 135
110 / 110
200 / 190
Others
(Capacity t/h)
30 -
10 - 30
5 - 10
- 5
200 / 180
250 / 180
-
-
200 / 170
200 / 170
- / 300
- / 320
200 / 160
200 / 160
220 / 180
250 / 200
170 / 140
170 / 140
200 / 160
220 / 180
200 / 190
-
-
-

Standard / Target for Wall Surface Temperature of Furnace
Furnace temperature
Standard / target wall temperature (°C)
Roof
Side wall
Bottom facing to the air
Over 1,300
1,100 over & under1,300
900 over & under 1,100
Under 900
140 / 120
125 / 110
110 / 100
90 / 80
120 / 110
110 / 100
95 / 90
80 / 70
180 / 160
145 / 135
120 / 110
100 / 90
Guideline --- Power Factor
Equipement for which power factor should be improved
Equipment
Capacity(kW)

Cage-type induction motor
Coil-type induction motor
Induction heating furnace
Vacuum melting furnace
Induction heater
Arc furnace
Flush butt welder(excluding portable type)
Arc welder(excluding portable type)
Rectifier
75
100
50
50
50
-
10
10
10,000
Notes:Exclude equipment for which application is difficult in terms of safety consirerations, such as explosion-proof types.
Guideline --- Motor Efficiency
9/16
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