( T4 - Tl)
g t q
= 5 ! " 2 2 = 1 _ 2 2
(199)
ал
ал
<11
(199)
(
200
)
(
201
)
104
Tz,
Тз,
T
4
,
h a ro ra tla rn i
Т г
orq ali ifodalaym iz.
1 -2 a d ia b a ta orqali:
—
* - 1
k-i
T i
V
i
(
202
)
37-rasm .
P =
c o n st G T Q
P - v
d ia g ra m m a s i
38-rasm . P = c o n st G T Q
T -s
d ia g ra m m a s i
b u n d a n ,
* - 1
12=1! P *
(203)
105
2 -3 izo b ara orqali:
(204)
b u n d a n .
7-3 = 7*2 v a T3 = T] P
p
(205)
3 -4 a d ia b a ta orqali:
(206)
b u n d a n ,
7'4 = 7i M
р
4
г
= 71 Р
P *
(207)
S hu q iy m a tla rn i FIK ifodasiga q o 'y ish b ila n q u y id a g in i hosil
qilam iz.
Bu ifo d a d a n k o 'rin ib tu rib d ik i, FIK b o sim n i o sh irish darajasig a
v a a d ia b a ta k o 'rsa tk ic h ig a b o g 'liq b o 'lad i.
47-§.
v
= const ja ra y o n id a iss iq lik k e ltiru v c h i gaz tu rb in a
q u rilm a sin in g sik li
Bu sik ln in g chizm a tasv iri 39-rasm d a keltirilgan.
K o m p resso rd a siq ilg an h a v o ressiv er o rq ali h a v o k lap a n i-
d a n y o n ish k a m e rasig a kelib tu sh a d i. U y e rg a y o q ilg 'i n a so sid a n
y o q ilg 'i tu sh ib , y o n ish jara y o n i a m alg a o sh ad i, s o 'n g ra y o n ish d a
hosil b o 'lg a n m a h s u lo tla r g az tu rb in a sid a a d ia b a tik k en g a y ad i,
ishlatilib b o 'lin g a n g a z la r tash q a rig a ch iq a rib y u b o rila d i. B u n d a y
sik ln in g
P - v
va T -s d ia g ra m m a sin i q u y id a g i c h iz m ad a k o 'ram iz.
(208)
TiP
P - T , p
k
P * (p-1)
,
1
^ = 1- —
•
(209)
106
39-rasm .
v
= c o n s t G T Q s in in g c h iz m a tasv iri: 1 - y o n ish kam erasi;
2 - soplo q u v u ri; 3 - soplo; 4 - g a z tu rb in a si; 5 - y o q ilg 'i nasosi;
6 - k o m p re sso r; 7 - ressiv er; 8 - h a v o k lap an i; 9 - fo rsu n k a
6
a
40-rasm . и = c o n st b o 'lg a n d a is s iq lik k e ltir u v c h i G R Q s ik ln in g
P - v
d ia g ra m m a s i
41-rasm .
v
= c o n s t b o 'lg a n d a is s iq lik k e ltiru v c h i G T Q s ik ln in g
T -s
d ia g ra m m a s i
107
Bu sik ln in g x arak teristik ala ri b o iib , b o sim n i o sh irish d a ra ja
si (3 = — va q o 'sh im c h a b o sim n i o sh irish d a ra jasi X = — h isobla-
Л
4
Pi
nadi.
K eltirilgan issiqlik m iqdori:
b = c p(T3 - T 2 )
(210)
O lib k etilg an issiqlik m iq d o ri esa:
=
Cp
(T4 - Ti)
cj
1
va
cj
2
n in g q iy m a tla rin i FIK an iq la sh ifo d asig a q o 'y ib , quyi-
d a g ila rn i olam iz:
i
- %
a z
M
(211)
4i
cv(T3-Ti)
h
~ T 2
T *
Тз, T4 h a ro ra tla rn i
o rq ali ifodalaym iz.
1-2 a d ia b a ta orqali:
5 - . , ^ . „ ¥
(212)
T ,
> 1
b u n d a n ,
2-3 izoxora orqali:
b u n d a n .
/г-1
T2 =T, = p * .
(213)
b =
(214)
To
Po
Т3 = T2 •
X
v a
T2
=
Tj p
* •
X
(215)
3 -4 a d ia b a ta orqali:
_
_
/f—1 _
Л—1
1
/ ^ 1
z'X
I I = ( F i ) i r = / А х 'Г =
= ___ I__
(216)
r 3
(
p v
( p 3 J
( P o X )
Е Г '
(Xp) *
b u n d a n ,
k - i
k-л
k - i
fe-i
Т4=Т
з
(РХ)<' =Tl
X
Va Т4 = Т1 Хк
(217)
O lin g a n ifo d a la rn in g q iy m a tla rin i FIK ifo d asig a q u y ish b ila n
q u y id a g in i h o sil qilam iz.
108
(183)
ifo d a d a n k o 'rin ib tu rib d ik i, sik ln in g FIK
k,
p, X katta-
lik la m i o rtis h i b ila n o rta d i.
M asala.
Bosim o 'z g a rm a s b o 'lg a n d a g i g az tu rb in a q u rilm a sin in g
(P=const) siklini b a r b ir n u q ta s id a g i p a ra m e trla rin i, foydali ishi-
ni, k e ltirilg a n va olib k etilg an issiqlikni, FIKni an iq lan g , a g a r Pi=l
b a r,
ti= 27
°C f2=700 0C, p= P2/ P 1=10; M , 4 b e rilg a n b o 'lsa . Ishchi
jism - h av o . Issiqlik sig 'im in i o 'z g a rm a s d e b hisoblang.
Y echish.
1-nuqta: f2=700 °C, p=P2/ P 1=10; /f=l,4 m 3/Kg
k - \
k - i
Ы
2-nuqta:
* ; Т2 = Г1Д ) * =Tt M
4
Л
M
T2 = 300 10°-4/i.4 = 300 1,93 = 579 К
t2
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