, , :
= h + h + h + h (11.1)
h - ( 3 10 );
h - ( 4 6 );
h - , , ;
h - ( 3 4 ); - h=0.
, , :
ΣQ = n (W + W..+ W..+ W.+ Σ G ) (11.2)
W , 3/,
W.. - , 3/,
W..- , 3/,
W. - , 3/,
Σ G , 3/,
n .
W. = (1,2-2,5) % W
W.. = (2,5-4) % W
W. = (0,3-0,8) % W
, , :
ΣQ = W + W..+ W..+ W.+ Σ G (11.3)
[1,.80] : 3/.
:
4800 1200
1) ( 11.1 11), -1200-240 ( 1.1 1), W =108000 3/, ,
ΣQ = (1+0,02+0,03+0,005) 108000 +39,5+73,5=113993 3/,
G = 39,5 3/ - ;
G = 73,5 3/ - .
, , :
W. = 2 % W
W.. = 3 % W
W. = 0,5 % W
2) .. , , , :
Q = ΣQ / 2
Q = 113993/2 = 56996,5 3/
, , :
= 4 + 5 + 6 = 15 . .
h - , h = 4 ,
h - , h = 5 ,
h - , h = 58,8 = 6 ,
h - , h=0
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3) [1,.80] 11.2 11 110-185 : -
49 320÷74 880 3/; - 24,5÷17,8 . .
1. , , ?
2. ?
3. .
4. .
5. ?