technical NOTES

(Project Pridr) #1
Pre-Heater Cyclone Efficiency
Data Unit S1 S2 S3 S4

Size of Cyclones Mm

2 x
8200

4 x 7500 4 x 8340 2 x 7600

2 x
8200
2 x 9500 2 x 9180
2 x
8000
2 x
8500
2 x 9500 2 x 9690
2 x
8600
2 x
8500

2 x 9500 2 x 9690
2 x
8600
2 x
8500
2 x 9500 2 x 10240
2 x
8600
2 x
8500
2 x 9500 2 x 10240
2 x
8600
BENEFITS
Reduction in PH Exit Tempera-
ture due to Cyclone design °C^1610011
Heat Savings
Kcal/
kg.Clk 7.21 4.81 0.00 4.56
Monitory Savings due to Heat
Savings

Lacs/
Annum 239.7 161.2 0.0 151.8
Power Savings w.r.t. reduction in
gas qty. kwh/t 0.034 0.023 0.000 0.021
Monitory Benefit due to power
savings

Lacs/
Annum 4.50 3.06 0.00 2.80
Total Monitory Savings per
Annum

Lacs/
Annum 244.2 164.2 0.0 154.6

9.2 Conclusion
Although the Pressure Drop will increase due to increase in Efficiency but it will be
nullified as the flow requirement is reduced due to heat savings. But Savings on
account of power is considered.

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