PH Stage Reduction from 6 to 5 Stage Remarks/
Data Unit 5 Stage 6 Stage Considerations
Total Capital Cost In Cement
Plant Savings
-920
Capex per MW for WHRS Cr/MW 10.0 10.0 As per
differential
cost from
Power Sheet
for future
projects
WHRS Costing @ net power
generation
Lacs Rs 13677 12407
Differential WHRS Costing Lacs Rs 1271 0
Total Differential capex Lacs Rs 351 0
Interest cost on additional
capex @ 7.0 %
Lacs Rs/ annum 25 0
Differential Capex including
interest cost
Lacs Rs 376 0
Payback (Months ) 56.1 6 stage
operating
at 5 stage is
non-viable
Data Differential ROI of 5 Stage Operation installation with Respect to 6 Stage
Power Cost
(Rs./kwh) 5.5^6 6.5 7.1
Fuel Cost
(Rs./Mkcal)
1000 Negative Opex Negative Opex 250.7 56.1
1200 Negative Opex Negative Opex Negative Opex Negative Opex
1400 Negative Opex Negative Opex Negative Opex Negative Opex
1500 Negative Opex Negative Opex Negative Opex Negative Opex
- By above working it is evident that the 6 stage PH installation & Operation is
recommended.
- Feeding option in second stage cyclone to be kept and can be operated after
estimating overall economy by fuel and power cost.
- No additional cost of boiler is required to manage additional heat of around
