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72

2007. 2

532.592.2

. .

-

. « » , -

.

« » .

, -

, U- -

,

- [1].

, -

, -

- ,

, -

, -

.

, -

, 600 C,

. -

, , -

. ,

, .

- -

, ,

, -

. -

U- -

, ,

- ,

, . ,

-

- ,

, U- -

, -

.

, -

« »

- ,

( . 1).

. 1.

: 1 –

( );

2 – ;

3 – U-

- -

, -

,

[2].

-

U-

(2)

73 d = 70 ( . 1).

[3]:

« » U- -

,

(t

1

C; t

1

= 50 C);

; ,

;

- .

« » U- -

-

0 0

0

2

t

H

r r r

t t ierfc

r a , (1)

r = 0,4 ; r

0

= 0,035 ; t

H

= 50 C.

2.

U- (d = 70 )

r 1 2 3 4 10 11 15

0,4 21,9 24,1 25,6 26,6 29,3 29,5 30,5

- - [4].

, -

-

. -

-

U- ,

, -

, -

, ( . 2, 3)

,

t

1

= 90 t

1

= 50 . -

:

' ''

1 m 1 1

,

Q G Cp t t (2)

G – ; –

;

m

– -

;

' '' 1

,

1

t t -

.

-

, -

V = 1; 3,5; 5; 6 .

, -

t

2

= 20 t

2

= 40 -

-

, -

, , -

Q

II

= 3I,7; 111,0; 159,0; 190 .

- .

:

1. -

U- L = 200 -

V = 6 .

2. -

L = 25 .

, -

, , -

:

H

2

V m b h gh

3

, (3)

b – , b = 2 l;

l – , ; h

, ; m – -

:

m = m

0 f

(4) - : m

0

= 0,32;

f

– - ,

f

= 1; –

. 2.

U- :

1 – = 0,07 ; 2 – = 0,06 ; 3 – = 0,05 ; 4 – = 0,04

(3)

74

2007. 2

, = 1; – -

, = 0,926; – -

; = 1; – , -

: 0, 478

0, 0148

32, 4 .

, ,

25 50 , ,

- ,

.

h = 0,01; 0,02; 0,03;

0,04; 0,05 ; – n = 1; 2; 3 ( . 1).

1. V ,

h, , = 2ln ( )

25 50 100 150 200

0,01 0,53 0,98 1,96 2,94 3,92

0,02 1,56 2,77 5,54 8,31 11,08

0,03 3,21 5,09 10,18 15,27 20,36

0,04 4,11 7,84 15,68 23,52 31,36

0,05 5,31 11,0 22,0 33,0 44,0

- (3) (4),

,

, m

0

= 0,42;

f

= 1; = 0,7; = 0,78; =0,0148.

- = 0,2; 0,3; 0,4; 0,5

h = 1; 2; 3 ( -

=0,3 ) ( . 2).

2. V ,

, = m ,

0,8 0,6 0,9

0,40 0,81 1,21

0,3 0,74 1,49 2,32

0,4 1,14 2,29 3,43

0,5 1,6 3,20 4,60

- - V = 3,5 + 5,0

0,4 + 0,5

= 0,3 [5].

- l = 25 , h

20 . -

l = 50 ,

, , -

h 10 ( . 1).

, - ( . 1, 2).

- , ,

V , ,

,

. ( . 2)

.

1. ., .

//

. ., 1972. 9. . 28-31.

2. ., ., .

-

// « -

». , 2005. . 150-160.

3. ., ., . -

// -

. ., 1976. 9. . 31-33.

4. .

//

. 2001. 2(7). 124-128.

5. ., ., . -

. .: , 1981. . 346.

i

-

. -

« » -

i i.

« » i

i i.

Summary

With a purpose of rising energy effectiveness for a system of waste paraffin oil collection from the surface, a helio-heater was developed. Represented calculation of heating rate around the “hot” pipe which maximally uses the solar radiation. Effec- tiveness of the system of oil collection is primarily depends on carrying capacity of “liquid” channels.

. . 2.03.07 .

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