#1energy Balance Whole.docx

ENERGY BALANCE ROLLER MILL AIR 7639.401106 tons/day

ROLLER MILL

RAW MIX 9094.7748 tons/day

RAW MILL 9094.7748 tons/day

HOT AIR 7639.401106 tons/day

Flowrate (tons/day) Temperature (˚C) Moisture Content Cp (kJ /kg ˚C)

RAW MILL PROPERTIES Raw Mill In 9573.45 25˚C 5% 1.145

Air in Flowrate: 7639.4 tons/day Temperature: 589 K Cp: 1.02 kJ/kg K a. Water Content

Dry Raw Mill  9094.77 tons/day Water Content(5% ) 

9094.77  0.05 0.95

 9573.45 tons/day Water Removed  0.05  9573.45  478.67 tons/day

Raw Mill Out 9094.7748 50˚C 0% 1.145

b. Energy Balance

Total Q Total Q

in

Q Q Q Dry Raw Mill in Dry Air in Moisture in

out

Q Q Q Dry Raw Mill out Air Moisture out Dry Air out

Total Q  9094.77 1.145 25   7639.4 1.02 589   478.67 4.1816 298  in Total Q

out

 9094.77 4.145 50   478.67 4.18 T   7639.4 1.02 T 

T  502.98 o K air out COAL MILL AIR 452.8765394 tons/day

COAL 462.12 tons/day

COAL MILL

RAW MILL 462.12 tons/day

HOT AIR 452.8765394 tons/day

Flowrate (tons/day) Temperature (˚C) Moisture Content Cp (kJ /kg ˚C)

Flowrate (tons/day) Temperature (˚C) Moisture Content Cp (kJ /kg ˚C)

COAL PROPERTIES Coal In 462.12 28˚C 4% 1.15 AIR PROPERTIES Air In 316˚C 1.02

Coal Out 50˚C 2% 0.9 Air Out 150˚C 0.9

a. Water Content Coal Out

Water Content  Moisture Content  Flow rate  0.02  462.12  9.24 tons/day Dry Coal  452.88 tons/day Coal In Dry Coal  452.88 tons/day Water Content(4% ) 

452.88  0.04 0.96

 18.87 tons/day Water Removed 9.63 tons/day

b. Energy Balance Total Q in  Total Q out Total Q in  Q dry coal in  Q dry air in  Q moisture in Total Q out  Q coal misture  Q dry coal  Q air ,moisture out  Q dry air in Total Q in  452.88 1.15 28   X 1.02  589   18.87 4.18 301 Total Q out  9.24 4.1815 323   452.88 0.950   9.63 4.187 423   1.0205  423  X  68.75 tons / day

COOLER AIR 13435.83643 tons/day

HOT CLINKER 5766.453405 tons/day

HOT CLINKER 5766.453405 tons/day

COOLER

SECONDARY AIR 5727.685328 tons/day

HOT AIR 7708.151106 tons/day Total Q in  Total Q out Q in  Q air  Q hotclinker Q in  13435 .83643  1.005  300   5766 .453405 1.04 1473  Q out  Q coldclinker  Q sec ondaryair  Q hotair Q out  5766 .453405 0.7691 363   5727 .685328 1.08 1073   7708 .151106  1.02  X  X  588.999 K / 316C

Heat of Reaction Clinker Composition from Material Balance in Kiln % SiO2 27.45 Al2O3 3.81 Fe2O3 0.34 CaO 63.07 MgO 5.32





17.196 Al2O3  27.112MgO Heat of Re action    32CaO   21.405 SiO  2.468 Fe O 2 2 3 

 



   Mass Clin ker  



17.1963.81  27.1125.32       5766.45  103    3263.07   21.40527.45   2.4680.34    9.45  109 kJ