, .
. (5.9)
(5.10)
(α > 1) 2. Δ , / ,
α ≥ 1; Δ = 0
α ≤ 1 Δ =119950 (1 α)L0
Δ =119950 (1 0,82) 0,51683 =11158,8101.
, / :
. (5.11)
( γ2 γr)
Hu , /:
:
:
Hu =33,91*0,85+125,6*0,14-2,51*9,81*0,14=43,9295*1000=43929,5
.
, /(),
( + +
+ + ), - ; (5.12)
( + +
+ + ), -
, , , - , , t z = 1501 2800 C.
=39,523+0,003349tz (31)
=26,67+0,004438tz (32)
=23,723+0,00155tz (33)
=21,951+0,001457tz,
=39,523+0,003349tz, (31)
=22,49+0,00143tz, (32)
=26,67+0,004438tz, =19,678+0,001758tz,
=21,951+0,001457 t z ,
, tz t z=Tz273 ,
.. (5.13)
= 0,00198z + 23,88.
=0,0020136z+24,157755 (35)
+ = , - ; (5.14)
, .
= , - (5.15)
, , , . - = 0,75 0,85 = 0,75; 0,85 - 0,95
. ; ; , :
:
.
:
:
|
|
(5.16)
, , :
, - (5.18)
.
Pz=(Pc**Tz)/Tc
λ = Pz/Pc
. (5.19)
.
.
ρ = 0.
; ; ; :
:
= 1800 2400 ;
= 5 12 ;
ρ = 1,2 1,7;
= 1,2 2,2.
:
=24002800 ;
=3,58,5 ;
=3,24,3.