0
w (t
2
20
4
f
SO
SO
6 0
70 Ь о /Ц
28-rasm . N a m h a v o n in g
h - d
d ia g ra m m a s i
M asala.
h - d
d ia g ra m m a d a n fo y d alan ib , h a ro ra ti 50 °C va n isb iy n am -
ligi (p = 70 % b o 'lg a n n a m h a v o n in g e n ta lp iy a si, n a m lik saqlam i,
p a rsia l b o sim i va s h u d rin g n u q ta s in i to p in g .
Yechish. f = 50 °C va (= 70 % o rqali d ia g ra m m a d a 1 n u q ta n i
79
b elgilaym iz. 1 n u q ta b e rilg a n h a v o n in g h o la tin i an iq la y d i. Bu
n u q ta d a n
h
= co n st c h iz ig 'ig a p a ra lle l chiziq o 'tk a z ib , e n ta lp iy a
si A = 201 k j/k g h a v o g a te n g ek a n lig in i an iq lay m iz. 1 n u q ta d a n
(f=const ga vertik al tu sh irib , n a m lik saqlam i
- d = 60
g/kg, p a rsia l
bosim c h iz ig 'i b ila n k e sish g a n n u q ta d a P = 0,087 b a r, (p= 100 %
egri chizig'i b ila n k esish g an n u q ta d a n s h u d rin g n u q ta s in i
tp = 42
°C ni to p a m iz (28-rasm ). D em ak, javob:
h =
201 kj/kg;
d = 60
g/kg;
P = 0,087 b a r;
ip
= 42
°C .
N azo rat u ch u n sav ollar
1. N a m h a v o d eb n im a g a aytiladi?
2. N a m h a v o n in g a so siy x a ra k teristik ala rin i izo h lab b ering.
3. N isb iy n a m lik deb, n im a g a aytiladi?
4. N a m s a q la m in in g m a z m u n i n im a n i ifodalaydi?
5. N a m h a v o n i a ra la sh m a d e b aytsa, b o 'la d im i?
6. N a m hav o n i
h - d
d ia g ra m m a sid a q a n d a y ch iziq lar chizil-
gan?
7.
h - d
d ia g ra m m a d a qizitilish va so v itilish h o la tla rin i chizib
ko 'rsatin g .
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