Tanlangan texnologik ishlab chiqarish jarayonining bayoni

7.4 Gidravlik hisob

Katalizator qatlamini gidrovlik qarshiligi quyidagi formuladan topiladi.

N ρ ^. w ²

ΔΡ = λ ---- ^. ---------

d_e 2

bu yerda λ – ishqalanish koefitsenti;

N – trubani uzunligi, m;

d_e – ekvivalent diametri, m;

w – gazning tezligi, m/s;

 – gazning zichligi, kg/m³

Ishqalanish koefitsenti Re kriteriysiga bog’liq
w ^. ρ ^. d

Re =-------------



bu yerda  - gaz aralashmasining dinamik qovushqoqlik koefitsenti, Pa ^. s.

6.1 ^. 0.072 ^. 1.057

Re =-------------------------- = 967 turbulent

0.48 ^. 10^-3

V 37860

w_ar = ----- = --------------------------------- = 5.7 m/s

S 3600 ^. 0.785 ^. 576 ^. 0.072²

16.0 16.0

λ = ---------- = -------------- = 4.04

Re ^0.2 967 ^0.2
11 5.7^{2 .} 1.057

ΔΡ = 4.04 --------- ^. ------------------ = 11200 Pa

0.072 2