Page 7 - MESCO Newsline 11th Edition

---MESCO Newsline

REVAMPING OF 30 MW CAPTIVE POWER PLANT

MESCO STEEL - II

The main objective behind the two
T 'he CPP we have is of 30 MW capacity & comprises to reduce the Steam & Power Cost
major initiatives taken this year was
of 3 Nos of Boilers i.e. 1 X 60 TPH coal & dolo-char
fired CVL Make Boiler and 2 X 34 TPH Waste Heat by utilizing & maximizing char (%) in
Recovery Boilers with a total installed capacity of 128 our AFBC Boiler and to enhance
MT/Hr steam generation and operating capacity of capacity utilization of our Turbo
Max 110 TPH (As both WHRB steam generation is Generator by reducing the vibration V. N. Tiwari
GM CPP &
depends upon the 2 Nos DRI plant process operating level at its low speed end to Factory Manager
condition) to generate 30MW power with lx30MW minimize our energy import bill. MESCO Steel - II
Siemens make STG set. Jajpur

AFBC Boiler Sparger Hopper Bed Modification - (Cost Comparison and Payback Analysis (5) 60 TPH Stem Output)
SR NO KEY PARAMETER BEFORE AFTER REMARKS
01 AFBC Fluidized Bed Distributor Plate Bed Sparger Flopper D.B Plate-CVL make
svstem with Wind Box Bed Svstem Sparger Hopper-Thermax
02 Char Utilization capability on 30% 60% By Weight
continuous basis
03 Average Coal Consumption per 270MT-280MT 210MT-220MT
dayatl00%MCR
04 Approx. Coal Saving/day @330 Approx. 50 MT/Day Approx. 50 MT/day @
days 1500MT/Month
05 Estimated Annualized Coal Approx. 4.7 Crore
Saving @Rs.2900/MT
06 Cost of Project (Thermax & In- Approx. 3.5 Crore
house)
07 Pay Back < 09 Months
mUJ
Pictorial Viewof AFBC Bed system
New PA System
TG SET MAJOR OVERHAULINGH - fCost Comparison and Pay back Analysis @ 20 MW GENERATION)
SR NO KEY PARAMETER BEFORE AFTER REMARKS
01 Specific SteamConsumption 5.0MT/MW 4.10 MT/MW Include all Auxiliary
02 Low speed side vibration Level at 160 Microns 60-70 Micron Consumption Replacement of all
TG Low speed Gear-box End Bearing, Base Grouting and post
alignment
03 Vibration Level at Alternator end 190-200 125-130 Micron Replacement of all Bearing,
Microns alignment& in-situ Balancing
04 Maximum Loading Limit 22.0 MW >24 MW Due to significance reduction on
Vibration at Low speed end &
Alternator
05 Estimated Annualized Saving @ Approx.- 4.3 Crore Considering 300 days of all 03
Rs.3.0/Kwh Boiler Availability & Steam From
Process Boiler >40 MT/Hr
06 Cost of Project (SIEMENS & Approx.- 2.5 Crore
Inhouse)
07 Pay Back < 07 Months
The above initiatives were taken by the management are likely to provide immediate boost towards the profitability of the
organization.