1. Kumenya diameter yumuyoboro wubukungu uhumeka
1.1 Igiciro cyo kugura imiyoboro yumuyaga
Nkuko diameter yumuyoboro uhumeka wiyongera, ibikoresho bisabwa nabyo biriyongera, bityo igiciro cyo kugura umuyoboro wamabuye y'agaciro nacyo kiriyongera. Dukurikije isesengura ry’imibare y’igiciro cyatanzwe n’uruganda rukora imyanda ihumeka, igiciro cy’umuyoboro uhumeka ubucukuzi bw’amabuye y'agaciro na diameter y'umuyoboro uva mu bucukuzi bw'amabuye y'agaciro usanga ahanini 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 byibanze byuburebure bwuburebure 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
Umuyaga urwanya umuyaga uhumeka urimo 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 birasa nkaho, bityoαagaciro kajyanye gusa na diameter. Coefficients zo guhangana zo guteranya imiyoboro yombi ihumeka neza hamwe nuyoboro uhumeka uhindagurika hamwe nimpeta zikomeye bifitanye isano numuvuduko wumuyaga.
ξjo- coefficient yaho yo kurwanya kwimyanda yumuyaga uhumeka, udafite 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, imbaraga zose zirwanya umuyaga wumuyaga uhumeka urashobora kugereranywa hashingiwe ku guhangana n’umuyaga mwinshi. Muri rusange abantu bemeza ko igiteranyo cyumuvuduko wumuyaga waho uhuza umuyoboro woguhumeka ibirombe, guhangana n’umuyaga waho uhindagurika, hamwe n’umuyaga w’umuyaga usohoka (ubwoko bwandika) cyangwa umuyaga winjira mu kirere (ubwoko bwo gukuramo) umuyoboro w’ibihumeka ugera kuri 20% by’umuyaga uhuha w’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; Coefficente yo kurwanya ubukana bwumuyoboro uhumeka uhumeka hamwe numuyoboro uhumeka uhumeka hamwe na skeleti ikaze bifitanye isano numuvuduko wumuyaga kurukuta, coefficient de coiffureαagaciro 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 Coefficente yo kurwanya ubukana bwumuyaga uhindagurika
| 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
