Rotary Kiln Operation .Kiln Feed vs Kiln speed calculation
Kiln Drying
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mechanics
Kiln Training
Cement Kiln Shell
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The formulae used for calculating of radiation and convection losses are Radiation Losses = Qr = 4.876 x 10-8 x ε x(Ts4 – Ta4) Convection Losses = Qnc = 80.33 x (Ts – Ta) 1.333 x [(Ts + Ta)/2]-0.724 Ta Ts ε
Ambient air temp in kelvin Service Temperature in kelvin Emmissivity = 0.9
convection losses for cylindrical cyclone Ta Ts Ts - Ta
Ta Ts
308.15 k 464.33 k 156.18
(Ts – Ta) 1.333 [(Ts + Ta)/2]-0.724 constant
839.6584885481 0.0134003256 80.33
Ts4-Ta4 ε
Convection loss
903.8488337046 k cal / hr / sq mts
Radiation Loss
D R H area are4a total area convection loss convection loss
6300 mm 3150 mm 8959 mm
6.3 mts 3.15 mts 8.959 mts
177.226938 31.15665 208.383588 sq mts 188347.262976974 k cals / hr 0.5690249637 k cals / kg clinker
area Radiation Loss Radiation Loss
convection losses for conical cyclone Ta Ts Ts - Ta
308.15 k 410.33 k 102.18
Radiation losses Ta Ts
(Ts – Ta) 1.333 [(Ts + Ta)/2]-0.724 constant
476.9630573007 0.0141221717 80.33
Ts4-Ta4 ε
Convection loss
541.0831324044 k cal / hr / sq mts
Radiation Loss
D d
6300 mm 900 mm
R r
3150 mm 450 mm
h
7322 mm
area
Radiation Loss i
6609.7794214331
R+r
3600
Radiation Loss
74716946.5798793 31156650 635850 area
106509446.579879 sq mm
Convection loss
57630.4649860992 k cal / hr
Convection loss
0.1741101661 k cal / kg clinker
convection losses for conical cyclone Ta Ts Ts - Ta
