Du, / | Di, / | Ds, /(×) | q, / | l, / | |
1-2 | 371,21 | 519,58 | -371,21 | ||
2-3 | 581,58 | 814,05 | 0,695 | 814,05 | 232,47 |
3-4 | -608,15 | -851,18 | 608,15 | ||
4-1 | -344,64 | -482,45 | -0,695 | -344,64 | |
469,41 | 469,41 |
4. p-v 1-2 3-4, :
9.
9
1-2 3-4
v, 3/ | , | |
1/ | 0,600 | 0,160 |
1// | 0,400 | 0,283 |
1/// | 0,200 | 0,747 |
3/ | 0,200 | 1,962 |
3// | 0,400 | 0,743 |
3/// | 0,600 | 0,421 |
T-s 2-3 4-1, :
10.
10
2-3, 4-1
, | s, /(×) | |
2/ | 0,151 | |
2// | 0,296 | |
2/// | 0,416 | |
4/ | 0,517 | |
4// | 0,457 | |
4/// | 0,297 |
: -v . 14; T - s - . 15.
. 14 . 15
3.
. .
:
1. 1= 0,100 .
2. 1 = 293 .
3. e = 12.
4. l = 1,5.
5. r = 1,6.
:
1. (, v, T, u, i, s) .
2. q 1 q 2, l, ... ht.
3. Du, Di, Ds, q l.
4. p-v T-s, , .
.
, - . R =287 /(×), =1,4, cp =1,005 /(×), cv =0,718 /(×). .
1. :
1
1 =0,100 , 1 =293 ,
=0,841 3/,
=0,718(293-273)=14,36 /,
=1,005(293-273)=20,10 /,
=0,075 /(×).
2
=0,1106121,4 =3,242 ,
=293120,4 =792 , =0,07 3/,
=0,718(792-273)=372,64 /,
|
|
=1,005(792-273)=521,60 /,
=0,075 /(×).
3
=3,2421061,5=4,863 ,
=7921,5=1188 (), =0,07 3/,
=0,718(1188-273)=656,97 /,
=1,005(1188-273)=919,58 /,
=0,367 /(×).
4
=4,863 ,
=11881,6=1901 , =0,071,6=0,112 3/,
=0,718(1901-273)=1168,76 /,
=1,005(1901-273)=1635,94 /,
=0,839 /(×).
5
=0,1001061,61,41,5=0,290 ,
=0,841 3/, =849 ,
=0,718(849-273)=413,57 /,
=1,005(849-273)=578,8 /,
=0,839 /(×).
2. :
=0,718(1188-792)=284,33 /,
=1,005(1901-1188)=716,36 /,
=284,33+716,36=1000,69 /.
:
=0,718(849-293)=399,21 /.
:
=1000,69-399,21=601,48 /.
... :
0,60
0,60.
3. Du, Di, Ds, q l .
1-2 ( ):
Du1-2 = u2 u1 = 372,64 14,36 = 358,28 /;
Di1-2 = i2 i1 = 521,60 20,10 = 501,50 /;
Ds1-2 = 0;
q1-2 = 0;
l1-2 = - Du1-2 = - 358,28 /.
2-3-4 ( ):
Du2-3-4 = u4 u2 = 1168,76 372,64 = 796,12 /;
Di2-3-4 = i4 i2 = 1635,94 521,60 = 1114,34 /;
Ds2-3-4 = s4 s2 = 0,839 0,075 = 0,764 /(K);
q2-3-4 = q1' + q1" = 1000,69 /;
l2-3-4 = q2-3-4 - Du2-3-4 = 1000,69 - 796,12 = 204,57 /.
4-5 ( ):
Du4-5 = u5 u4 = 413,57 1168,76 = - 755,19 /;
Di4-5 = i5 i4 = 578,80 1635,94 = -1057,14 /;
Ds4-5 = 0;
q4-5 = 0;
l4-5 = - Du4-5 = 755,19 /.
5-1 ( ):
Du5-1 = u1 u5 = 14,36 413,57 = - 399,21 /;
Di5-1 = i1 i5 = 20,10 578,80 = - 558,70 /;
Ds5-1 = s1 s5 = 0,075 0,839 = - 0,764 /(K);
q5-1 = - q2 = - 399,21 /;
l5-1 =0.
11.
11