1. Kumenya diameter yumuyoboro wubukungu uhumeka
1.1 Igiciro cyo kugura imiyoboro yumuyaga
Mugihe diameter yumuyoboro uhumeka wiyongera, ibikoresho bisabwa nabyo biriyongera, bityo igiciro cyo kugura imiyoboro yubucukuzi bwamabuye y'agaciro nayo iriyongera.Dukurikije isesengura ry’imibare y’igiciro cyatanzwe n’uruganda rukora umuyaga uva mu birombe, igiciro cy’umuyoboro uhumeka ubucukuzi bw’amabuye y'agaciro na diameter y'umuyoboro uhumeka ubucukuzi bw'amabuye y'agaciro usanga ari umurongo ukurikira:
C1 = (a + bd) L.(1)
Aho,C1- kugura ikiguzi cyumuyaga uhumeka, CNY; a- kongera igiciro cyumuyaga uhumeka kuri buri burebure, CNY / m;b- ibiciro fatizo coefficient yuburebure bwa diameter hamwe na diameter runaka yumuyoboro uhumeka;d- diameter y'umuyoboro uhumeka, m;L- Uburebure bwumuyoboro wubucukuzi waguzwe, m.
1.2 Igiciro cyo gucukura amabuye y'agaciro
1.2.1 Isesengura ryibipimo byo guhumeka byaho
Kurwanya umuyaga wumuyaga uhumeka harimo kurwanya umuyagaRfvy'umuyoboro uhumeka hamwe no kurwanya umuyaga wahoRev, aho umuyaga waho urwanyaRevikubiyemo kurwanya umuyaga uhuriwehoRjo, inkokora yumuyagaRbeno gucukura amabuye y'agaciro duct outlet resistanceRou(kanda-ubwoko) cyangwa inlet irwanya umuyagaRin(ubwoko bwo gukuramo).
Umuyaga wuzuye wumuyaga wumuyaga uhumeka ni:
(2)
Umuyaga wose urwanya umuyaga uhumeka umuyaga ni:
(3)
Aho:
Aho:
L- uburebure bw'umuyoboro uhumeka, m.
d- diameter yumuyoboro uhumeka, m.
s- agace kambukiranya igice cyumuyaga uhumeka, m2.
α- Coefficient yo kurwanya ubukana bwumuyaga uhumeka, N · s2/m4.Ubukomezi bwurukuta rwimbere rwumuyaga uhumeka ni kimwe, bityoαagaciro kajyanye gusa na diameter.Coefficients zo guhangana zo guteranya imiyoboro yombi ihumeka neza hamwe numuyoboro uhumeka uhindagurika hamwe nimpeta zikomeye bifitanye isano numuvuduko wumuyaga.
ξjo- coefficient de coiffure yaho ya duct ya ventilation duct ihuriweho, idafite urugero.Iyo bihariningingo mu burebure bwose bwumuyaga uhumeka, coefficient de coiffure yaho yose ibarwa ukurikijenξjo.
n- umubare wibice byumuyaga uhumeka.
ξbs- coefficient de coiffure yaho muguhindura umuyoboro uhumeka.
ξou- coefficient de coiffure yaho ku isohoka ry'umuyoboro uhumeka, fataξou= 1.
ξin- coefficient de coiffure yaho mukwinjira mumyanda ihumeka,ξin= 0.1 iyo inlet yazengurutse rwose, kandiξin= 0.5 - 0,6 mugihe inlet itazengurutse kuruhande.
ρUbucucike bw'ikirere.
Mu guhumeka kwaho, kurwanya umuyaga mwinshi wumuyaga uhumeka birashobora kugereranywa hashingiwe ku guhangana n’umuyaga mwinshi.Muri rusange abantu bemeza ko igiteranyo cyumuvuduko wumuyaga waho uhuza umuyoboro woguhumeka ibirombe, kurwanya umuyaga waho uhindagurika, hamwe n’umuyaga w’umuyaga usohoka (ubwoko bwandika) cyangwa kurwanya umuyaga winjira (ubwoko bwo gukuramo) y'umuyoboro wo guhumeka ibirombe ni hafi 20% by'umuyaga wose uhanganye n'umuyaga uhumeka.Umuyaga wose urwanya umuyaga uhumeka ni:
(4)
Ukurikije ubuvanganzo, agaciro ka coefficient yo kurwanya friction yo mu bwoko bwa α yumuyoboro wabafana urashobora gufatwa nkigihe gihoraho.Uwitekaαagaciro k'umuyoboro uhumeka urashobora gutoranywa ukurikije Imbonerahamwe 1;Uwitekaαagaciro ka seriveri ya JZK umuyoboro wa FRP urashobora guhitamo ukurikije imbonerahamwe ya 2;Coefficient de coiffe de coiffure yumuyoboro uhumeka uhindagurika hamwe numuyoboro uhumeka uhumeka hamwe na skeleton ikaze bifitanye isano numuvuduko wumuyaga kurukuta, coefficente yo guhangana na frictionαagaciro k'umuyoboro uhumeka ushobora guhitamo ukurikije imbonerahamwe ya 3.
Imbonerahamwe 1 Coefficient de coiffure yumuyoboro wumuyaga uhumeka
| Gukuramo diameter (mm) | 200 | 300 | 400 | 500 | 600 | 800 |
| α× 104/ (N · s2· M.-4 ) | 49 | 44.1 | 39.2 | 34.3 | 29.4 | 24.5 |
Imbonerahamwe 2 Coefficient de coiffure ya JZK ikurikirana ya FRP centilation umuyoboro
| Ubwoko bw'imiyoboro | JZK-800-42 | JZK-800-50 | JZK-700-36 |
| α× 104/ (N · s2· M.-4) | 19.6-21.6 | 19.6-21.6 | 19.6-21.6 |
Imbonerahamwe 3 Coefficient yo kurwanya ubukana bwumuyaga uhumeka
| Gukuramo diameter (mm) | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
| α× 104/ N · s2· M.-4 | 53 | 49 | 45 | 41 | 38 | 32 | 30 | 29 |
Gukomeza…
Igihe cyo kohereza: Nyakanga-07-2022
