Tabela-Proracun Cevne Mreze

Proračun cevne mreže Proračun cevne mreže Kol. topl. Protok Deonica Q W

V l/h

Dužin Prečni Debljin Brzina a k cevi a zida ds L w  m mm mm m/s

Jedin. pad prit. R Pa/m

Mesni Pad prit. Pad prit. u otpor mes.otp pravoj c. i . RxL Z  Pa Pa

1 2 3 4 5 8 9 10 11 14

Radijator 1 18,423 13,285 8,414 6,421 1,993 1,993 6,421 8,414 13,285 18,423

792 571 362 276 86 86 276 362 571 792

2 5 5 7 2 2.5 7 5 5 2

22.0 22.0 18.0 18.0 15.0 15.0 18.0 18.0 22.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.486 0.476 0.363 0.169 0.169 0.363 0.476 0.486 0.674

390.06 206.55 265.41 157.59 48.43 48.43 157.59 265.41 206.55 390.06

780.1 1032.7 1327.0 1103.2 96.9 121.1 1103.2 1327.0 1032.7 780.1

5.5 3.6 2.95 1.26 6.46 4.78 0.97 0.47 3 3

1212.8 412.8 324.8 80.8 89.5 66.3 62.2 51.8 344.0 661.5

1 2 3 4 15 16 9 10 11 14

Radijator 2 18,423 13,285 8,414 6,421 4,428 4,428 6,421 8,414 13,285 18,423

792 571 362 276 190 190 276 362 571 792

2 5 5 7 2 2.5 7 5 2 2

22.0 22.0 18.0 18.0 18.0 18.0 18.0 18.0 22.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.486 0.476 0.363 0.251 0.251 0.363 0.476 0.486 0.674

390.06 206.55 265.41 157.59 77.52 77.52 157.59 265.41 206.55 390.06

780.1 1032.7 1327.0 1103.2 155.0 193.8 1103.2 1327.0 413.1 780.1

5.5 3.6 2.95 1.26 7.5 5.15 0.97 0.47 3 3

1212.8 412.8 324.8 80.8 228.7 157.1 62.2 51.8 344.0 661.5

1 2 3 17 18 10 11 14

Radijator 3 18,423 13,285 8,414 1,993 1,993 8,414 13,285 18,423

792 571 362 86 86 362 571 792

2 5 5 2 2.5 5 5 2

22.0 22.0 18.0 15.0 15.0 18.0 22.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.486 0.476 0.169 0.169 0.476 0.486 0.674

390.06 206.55 265.41 48.43 48.43 265.41 206.55 390.06

780.1 1032.7 1327.0 96.9 121.1 1327.0 1032.7 780.1

5.5 3.6 2.95 14 4.95 0.47 3 3

1212.8 412.8 324.8 194.1 68.6 51.8 344.0 661.5

1 2 19 20 11 14

Radijator 4 18,423 13,285 4,871 4,871 13,285 18,423

792 571 209 209 571 792

2 5 2 2.5 5 2

22.0 22.0 18.0 18.0 22.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.486 0.276 0.276 0.486 0.674

390.06 206.55 92.92 92.92 206.55 390.06

780.1 1032.7 185.8 232.3 1032.7 780.1

5.5 3.6 7.8 3.94 3 3

1212.8 412.8 287.9 145.4 344.0 661.5

Proračun cevne mreže Kol. topl. Protok Deonica Q W

V l/h

Dužin Prečni Debljin Brzina a k cevi a zida ds L  w m mm mm m/s

Jedin. pad prit. R Pa/m

Mesni Pad prit. Pad prit. u otpor mes.otp pravoj c. i . RxL  Z Pa Pa

1 6 7 12 13 14

Radijator 5 18,423 5,138 3,672 3,672 5,138 3,672

792 221 158 158 221 158

2 9 6 6 9 2

22.0 18.0 18.0 18.0 18.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.291 0.208 0.208 0.291 0.134

390.06 102.87 54.42 54.42 102.87 18.00

780.1 925.8 326.5 326.5 925.8 36.0

5.5 7.65 6.21 6.45 4.5 3

1212.8 314.1 130.2 135.3 184.8 26.3

1 6 21 22 13 14

Radijator 6 18,423 5,138 1,466 1,466 5,138 18,423

792 221 63 63 221 792

2 9 2 9 9 2

22.0 18.0 15.0 15.0 18.0 22.0

0.80 0.80 0.80 0.80 0.80 0.80

0.674 0.291 0.124 0.124 0.291 0.674

390.06 102.87 27.41 27.41 102.87 390.06

780.1 925.8 54.8 246.7 925.8 780.1

5.5 7.65 12.45 5.53 4.5 3

1212.8 314.1 93.4 41.5 184.8 661.5

ukupan pad pritiska

Proračun cevne mreže

Ukupni pad prit. RL + Z Pa

Raspol. napor Pa

potis Cu 35x1,5 Cu 28x1 Cu 22x1 Cu 18x1 Cu 15x1

1992.9 1445.5 1651.9 1184.0 186.4 187.3 1165.4 1378.8 1376.7 1441.7 12010.6

1992.9 1445.5 1651.9 1184.0 383.8 350.9 1165.4 1378.8 757.1 1441.7 11751.9

258.7

1992.9 1445.5 1651.9 290.9 189.7 1378.8 1376.7 1441.7 9768.1

2242.5

1992.9 1445.5 473.7 377.7 1376.7 1441.7 7108.3

4902.3

povrat 2 10 16 0 16

2 10 16 0 18.5

UKUPNO 4 20 32 0 34.5 90.5

Proračun cevne mreže Ukupni pad prit. RL + Z Pa

1992.9 1239.9 456.8 461.8 1110.6 62.3 5324.3

1992.9 1239.9 148.2 288.2 1110.6 1441.7 6221.5

52184.6

Raspol. napor Pa

6686.3

22.0

5789.1

1.00

#REF!

#REF!

Proračun cevne mreže

Proračun cevne mreže

#REF!

0.0075

#REF!

0.034422

#REF!

#REF!

#REF!

#REF!

#REF!

Proračun cevne mreže

Proračun cevne mreže

2988.6

-2637.7

Podaci

Ulazni podaci koje treba uneti u program za razlicite radne parametre i materijal cevi: Radne temperature: Srednja gustina: Kinem. viskoznost: Hrapavost cevi:

Gustina Kin.visk.

10OC 1000 1.3E-06

Hrapavost za celik: Hrapavost za Cu: Hrapavost za PRINETO:

B B, G, R H I 20OC 998 1.0E-06

30OC 996 8.0E-07

40OC 992 6.6E-07

50OC 988 5.6E-07

70OC 978 4.2E-07

80OC 972 3.7E-07

0.15 0.01 0.07

JUS C.B5.021 - Teh. usl. za izradu i ispor.

Meke plastificirane Cu cevi JUS

(do 64 bar i 300 C ili p*t