i7 = 2820 /;

i8 = 2730 /;

i9 = 2610 /.

: :

Pi = (1 - xi)×Pi; ti = f (Pi) = C.

P1 = 0,95 ×6,47 = 6,1465 ; t1 = f (P1) = 280C;

P2 = 0,95 ×4,589 = 4,35955 ; t2 = f (P2) = 255C;

P3 = 0,95 ×1,85 = 1,7575 ; t3 = f (P3) = 210C;

P4 = 0,92 ×0,75 = 0,69 ; t4 = f (P4) = 165C;

P5 = 0,92 ×0,41 = 0,3772 ; t5 = f (P5) = 140C;

P6 = 0,92 ×0,26 = 0,239 ; t6 = f (P6) = 125C;

P7 = 0,92 ×0,13 = 0,1196 ; t7 = f (P7) = 105C;

P8 = 0,92 ×0,07 = 0,0644 ; t8 = f (P8) = 85C;

P9 = 0,92 ×0,03 = 0,0276 . t9 = f (P9) = 65C.

ﳿ ( .3):

i1 = 3100 /;

i2 = 3030 /;

i3 = 3430 /;

i4 = 3190 /;

i5 = 3040 /;

i6 = 2940 /;

i7 = 2820 /;

i8 = 2730 /;

i9 = 2610 /.

:

t=70C

t==150C

=73C

=120C

:

t'= t'4 = 165C

t'= t'6 = 125C

= i4 = 3190 /

= i6 = 2940 /

:

G = Q×103/(Cp(t t)) = 15×103/(4,2×(150 70)) = 44,643 /.

). .

= p= 4.2×120 = 504 /;

= i= pt= 4.2×150 = 630 /;

= pt' = 4.2×165 = 693 /.

г :

G ×i + G ×i4 = G ×i + G ×i;

G = G.

G = G = (G ×i - G ×i)/( i4 - i) =

= (44,643 ×630 - 44,643 ×504)/(3190 - 693) = 2,253 /.

). .

=p= 4.273 = 306.6 /;

= pt' = 4.2125 = 525 /.

г :

G ×i + G ×i6 + G ×i = G ×i + G ×i;

G = G + G.

G = [G×(i - i) + G×(i6 - i)] / (i6 - i) =

= [44,643×(504 306,6) + 2,253×(2941 - 693)] / (2941 - 525) = 5,744 /.

G = G - G = 5,744 - 2,253 = 3,491 /.

.

i= pt= 4.270 = 294 /.

:

G ×i + G ×i = G ×i + G ×i;

G = G.

i = (G ×(i - i) + G ×i)/ G =

= (44,643 ×(294 306,6) + 5,744 ×525)/ 5,744 = 427,071 /.

t = i / 4,2 = 101,7C.

3.

G = KG ×264 = 1×264 = 264 /.

ﳿ .

i(10-) = 4,2 ×tʒ, . t = t(10-) - Dt, C.

i9 = 4,2 ×280 = 1176 ; t9 = 280 - 1 = 279 C;

i8 = 4,2 ×255 = 1071 ; t8 = 255 - 1 = 254 C;

i7 = 4,2 ×210 = 882 ; t7 = 210 - 1 = 209C;

i6 = 4,2 ×165 = 693 ; t6 = 165 - 3 = 162C;

i5 = 4,2 ×140 = 588 ; t5 = 140 - 3 = 137C;

i4 = 4,2 ×125 = 525 ; t4 = 125 - 3 = 122C;

i3 = 4,2 ×105 = 441 ; t3 = 105 - 3 = 102C;

i2 = 4,2 ×85 = 357 ; t2 = 85 - 0 = 85C;

i1 = 4,2 ×65 = 273 . t1 = 65 - 0 = 65C.

i = 4,2 ×t, .

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