.
6.1 .
6. 1
, / 3 | , % | ||
1. | H2 | 10,8 | ----- |
2. | CO | 12,7 | ----- |
3. | C2H2 | 35,7 | 85,3 |
4. | CH4 | 56,4 | ----- |
5. | C2H6 | 63,5 | |
6. | C3H8 | 91,1 | 2,42 |
7. | C4H10 | 118,6 | 2,1 |
8. | C5H12 | 146,1 | 1,9 |
9. | C6H6 | 146,2 | ----- |
10. ѳ | H2S | 23,4 | 1,1 |
1. | N2 | ----- | 0,48 |
2. | CO2 | ----- | ----- |
3. | H2O | ----- | 0,3 |
.
L0=0.0476*[0.5CO+0.5H2+1.5H2S+2CH4+∑(m+n/4) ∙CmHn-O2] ∙ (1+0.00124*ƒb), 3/3 ,
m n ,
ƒb - /3 (18,9 /3).
L0=0.0476∙[1,5*1,1+2*85,3+3,5*6+5*2,4+6,5*2,1+8*1,9]*(1+0,00124*18,9)=
=11,41 3/3.
:
Lg = α∙L0,
α (1,1)
Lg = 1,1*11,41 = 12,55 3/3.
:
V = VCO2+VH2O+VN2+VO2+VSO2, :
V ᒺ ,
VCO2,VH2O,VN2,VO2,VSO2 ᒺ .
VCO2 =(CO+CO2+CH4+∑m*CmHn)*0,01
VCO2 =(85,3+2*6+3*2,42+4*2,1+5*1,9)*0,01=1,22 3/3
VH2O =(H2+H2S+2*CH4+ ∑n/2*CmHn+H2O+0,124*Lg*f)*0,01
VH2O = (1,1+2*85,3+3*6+4*2,42+5*2,1+6*1,9+0,3+0,124*12,55*18,9)*0,01= =2,51 3/3
VN2 =(N2+79* Lg)*0.01
VN2 = (0,48+79*12,55)*0,01=9,92 3/3
VO2 =(0,21*(α-1)* L0)
VO2 = (0,21*(1,1-1)*11,41) = 0,24 3/3
VSO2 =(0,01* H2S)
VSO2 = (0,01*1,1)=0,011 3/3
V = 1,22+2,51+9,92+0,24+0,011 = 13,90 3/3
:
CO2 = (VCO2 / V)*100%
CO2 = (1,22/13,90)*100=8,78%
H2O = (VH2O / V)*100%
H2O = (2,51/13,90)*100= 18,06%
N2 = (VN2 / V)*100%
N2 = (9,92/13,90)*100= 71,37%
O2 = (VO2 / V)*100%
O2 = (0,24/13,90)*100=1,73%
SO2 = (VO2 / V)*100%
SO2 =(0,01/13,90)*100=0,08%
:
Q = 0,127CO + 0.108H2+0.234H2S+0.357CH4+∑(Q/100)*CnHm
Q = =0,234*1,1+0,357+85,3+(63,50/100)*6+(91,1/100)*2,42+(118,6/100)*2,1+(146,10/100)*1,9) = 41,99 [/3]
() , /3
i = (Q+Q+Q)/ V , :
Q , , /3.
Q - , , /3.
Q = 0.
Q = α*L0*it , t t= 300 ( 3), /3.
|
|
Q = 1,1*11,41*0,3957 = 4,97/3
i = (41,99+4,97)/13,90 = 3,378 /3
6.2 , :
6.2
t, | ||||||||||
i, /3 | 2,063 | 2,247 | 2,43 | 2,63 | 2,832 | 3,04 | 3,272 | 3,52 | 3,782 | 4,065 |
i1 = 0,01*(CO2t1*CO2+ H2Ot1*H2O+ N2t1*N2 + O2t1*O2 + SO2t1*SO2 )*t1
i1 = 0,01*(2,42*8,78+1,93*18,06+1,49*71,35+1,54*1,73+2,40*0,08)*2000= 3,405 /3 .
i2 = 0,01*(CO2t2*CO2+ H2Ot2*H2O+ N2t2*N2 + O2t2*O2 + SO2t2*SO2 )*t2
i2 = 0,01*(2,43*8,78+1,95*18,06+1,9*71,35+1,55*1,73+2,5*0,08)*2100=
4,094/3 .
:
t = t2-((i2 - i)/(i2 - i1))*100 = 2100-((4,094-3,378)/(4,094-3,405))*100 = 2009
:
t = t*η, η , (η = 0,63).
t = t*η = 2009*0,63 = 1266 .
.
:
q0 = 1,1*C*[(T/100)4 (T0/100)4], /2, :
1,1 -, ,
C - --.
:
C =ε*C0 , ε - (ε = 0,56)
C0 - (C0 = 5,67)
t=1000 t=950
q0 = 1,1*0,56*5,67 *[(1273/100)4 (293/100)4] = 96364,81 /2
q1 = 1,1*C*[(T/100)4 (T/100)4], /2
q1 = 1,1*0,56*5,67 *[(1273/100)4 (1223/100)4] = 14311,85 /2
- :
α0=q0/(t-t0) = 96364.81/(1000-20) = 98.33 /2∙
- :
α1=q1/(t-t) = 14311/(1000-950) = 286.24 /2∙
- :
α = (α0 + α1)/2 = 192.28 /2∙
:
40 ( = 0,4%, Mn = 0.4%, Si = 0.2%)
- :
λ = (λ1+λ2+λ3)/3,
λ1 - , /2∙
λ2 - - , /2∙
λ3 - , /2∙
λ0 = 1,163*(60-8,7-14,4Mn-29.0Si) = 52.29 /2∙
λ200 = 0.95 λ0 =49.57 /2∙
λ400 = 0.85 λ0 =44.45 /2∙
λ600 = 0.75 λ0 =39.22 /2∙
λ800 = 0.68 λ0 =35.56 /2∙
λ1000 = 0.68 λ0=35.56 /2∙
λ1200 = 0.73 λ0= 38.17 /2∙
λ = (52.25+52.25+35.6)/3 = 46,72 /2∙
λ = ƒ():
:
ρ = 7880-40-16Mn-73Si = 7880-40*0.4-16*0.4-73*0.2 = 7843 /3
|
|
:
h=0.36. ,
S=0.18.
Bi =(α *S)/λ = (192,28*0,18)/46.72 = 0,74
.
:
= ((t t)/(t t0)) = (1000-950)/(1000-20) = 0,05
( 6):
F0 = 4,65
F0 :
= 0,065
:
t = t - *(t-t0) = 1000-0,065*(1000-20) = 936
λ:
λ =(λ1+ λ2+ λ3+ λ4)/4, λ4 - .
λ4 = 35,6 /2∙ ( )
λ = (52.25+52.25+35.6+35.6)/4= 43.95 /2∙
:
Bi =(α *S)/λ = (192.28*0.18)/43.95 = 0.79
:
F0 = 4.5
:
= 0,067
:
t = t *(t-t0) = 1000-0,067*(1000-20)=934
:
Δt = t t = 950-934 = 16
:
t = t 0.5*Δt = 950-0.5*16 = 942
5 :
i0 = 9.42 /, i = 653.46 /
:
= ((-0)/(t-t0) = ((653.46-9.42)/(942-20) = 0,698 /∙
- :
α = λ/(-ρ) = 8.09*10-6 , 2/
:
τ = (F0*S2)/α = (4.5*0,182)/8*10-6 = 18225 = 5 .
τ = 3 .
τ = τ+τ = 5+3=8 .