FUEL USED FOR THERMAL POWER STATION.

In our earlier blogs we have understood the significance of LAND on technical issues and understand that how much land is required to set up a Thermal Power Stations. Now we will discuss about the next important aspect of the Thermal Power Station i.e. FUEL. Generally in our country as on date we have abundence of Coal supply Therefore we are using mainly Coal but FUEL oil , Light diesel oil , Naptha , LNG ( Light Natural Gas ) was also used. Petrolium products were imported from other countries then it was refined and distributed as different product all over the country. Others are mainly used for Gas turbine project.

Therefore our main discussion will be focused on Coal only. Others will be discussed  as and when topic comes.

Typical analysis of coals of the some o f  countries being used  in India  w ith or HMV/MF,without Indian coal.

Country                                       M        VOL         F.C    ASH    SUL       HHV/M/KG

AUSTRALIA                            2.58     30.09       52.80  14.55   0.72         27.03

CHINA                                     2.50     29.90       44.40   25.70   0.66         23.94

INDIA                                       14.64  22.87       28.55    33.94   0.45        14.57

M== MOISTURE % , VOL = VOLATILE MATTERS , F.C =FIXED CARBON, ASH =ASH SUL= SULPHUR %.

The above values are typical  for a coal block not representing any  country. There are other places where ash % is as low as 3to10 %.

Typical ash analysis for Indian coal for power station.

SiO2        56.66

Al2O3     27.46

Fe2O3       6.40

CaO           1.81

MgO          0.96

Na2O         3.40

K2O           3.40

TiO2          1.94

P2O5         1.10

SO3           0.27

THIS PROPERTIES OF ASH WILL DETERMINE WHERE THE SAME WILL BE USED . THESE ASH CAN BE USED FOR MAKING BRICKS , CONSTITUENTS OF CEMENT , CAN BE USED TO FILL UP THE EXCAVATION SPECIALLY PIT HEAD STATION AND UNDERGROUND MINING. ALSO THIS ASH CAN BE USED FOR  ROAD MAKING AND FILL UP OF LAND.