)J.hlMOBoro
rpaKTa
(CM.
pa3)J.eJI
E2).
0pHeHTHpOBOqHYIO
BhlCOTY
)J.h1-
MOBOH
rpy6bI
(6e3 yqeTa
COnpOTHBJIeHHH
rpy6hl)
onpe)J.eJIHIOT
H3
Bhl-
paJKeHHH:
(30)
PaCqeT
BhlCOThl
)J.hIMOBOH
rpy6hl
npOH3BO)J.HT
)J.JIH
JIeTHHX,
HaH60JIee
THJKeJIhlX
YCJIOBHH,
KOr)J.a
nJIOTHOCTh
B03)J.yxa MHHHMaJIhHa.
Pac-
CMOTPHM
)J.Ba
rrpHMepa.
n p H M e
pl.
Tpe6yeTcH paCCqHTaTh THry
)J.hIMOBOH
Tpy6hI Bhl-
COTOH
H=100M
B
3HMHee
(ts =
-20°C),
oceHHee (ts = 0
0c)
H JIeTHee
(to
=
30°C)
BpeMH; TeMnepaTypa
npo)J.YKTOB
cropaHHH
tr
=
300°C,
nJIOTHOCTh
PrO
= 1,32 Kr/M3.
PemeHHe. PaCCqHTaeM
rrJIOTHOCTh
npo)J.YKTOB
crOpaHH5I H B03-
)J.yxa
npH
)J.eHcTBHTeJIhHhIX
YCJIOBHHX:
273 273 / 3
PI'
= Pro = 1,32 =
0,63Kr
M ,
273 +
tr
273 +
300
273 / 3
PB
20 = 1,29 = 1,39Kr M ,
t=-
e
273-
20
PBt=oe
=
1,29Kr/
M3
,
273 / 3
P
B
30e = 1,29 = 1,16Kr M .
t=
273-30
THra
)J.hIMOBOH
Tpy6hI:
3HMOH
~p=100·9,8(l,39-0,63)=745
na,
oceHhlO
~p=IOO·9,8(l,29-0,63)=647
na,
JIeTOM
~p=100·9,8(1,16
-
0,63)=520
na.
KaK
BH)J.HO
H3
:noro
rrpHMepa, THra
)J.hIMOBOH
rpy6hI
JIeTOM
npHMepHo
B 1,5 pa3a MeHhllle, qeM
3HMOH.
n p H M e p 2. Tpe6yeTC5I orrpe)J.eJIHTh
OpHeHTHpOBOQHO
BhlCOry
)J.hIMOBOH
TPy6hI
)J.JI5I
YCJIOBHH:
cyMMapHoc
corrpOTHBJ1CHHC
)J.hIMOBO-
3
ro
rpaKTa I
~p=400ila;
rrJIOTHOCTh
)J.hIMOBhIX
ra30B p,{)= 1,3 Kr/M ;
TeMnepaTypa ra30B
285°C.
PCllIeHHc.
ilpHHHMacM
TeMrrepaTYPY
HapYJKHOrO
B03)J.yxa B
JIeTHee
BPCM5I
35°C;
Tor)J.a
rrJIOTHOCTH
ra30B H B03)J.yxa paBHhI:
273 / 3
PI'
=
1,3
=
0,64Kr
M ,
273+285
30