Ukubalwa koMbhobho woMoya woMphefumlo kunye noKhetho lweZixhobo kuLwakhiwo lweTonela(2)

2. Ukubalwa komthamo womoya ofunekayo kulwakhiwo lwetonela

Izinto ezigqiba umthamo womoya ofunekayo kwinkqubo yokwakhiwa kwetonela ziquka: inani eliphezulu labantu abasebenza kwi-tunnel ngexesha elifanayo;elona xabiso liphezulu leziqhushumbisi ezisetyenziswe kuqhushumbo olunye: esona santya sincinci somoya esichazwe kwitonela: ukuphuma kweegesi eziyityhefu neziyingozi njengerhasi kunye necarbon monoxide, kunye nenani leenjini zokutsha zangaphakathi ezisetyenziswe kwitonela Linda.

2.1 Bala umthamo womoya ngokomoya omtsha ofunwa linani eliphezulu labantu abasebenza etoneleni ngaxeshanye.
Q=4N (1)
apho:
Q - umthamo womoya ofunekayo kwitonela;m³/min;
4 — Ubuncinci bomthamo womoya ofanele ukunikezelwa ngomntu ngomzuzu;m³/min•umntu
N - Inani eliphezulu labantu kwi-tunnel ngexesha elifanayo (kubandakanywa nokukhokela ukwakhiwa);abantu.

2.2 Kubalwa ngokobungakanani beziqhushumbisi
Q=25A (2)
apho:
25 — Ubuncinane bomthamo womoya ofunekayo ngomzuzu ukungxenga irhasi eyingozi eveliswe kugqabhuko-dubulo lwekhilogram nganye yeziqhushumbisi ukuya ngaphantsi koxinzelelo oluvumelekileyo ngexesha elibekiweyo;m³/min•kg.

A - Ubuninzi bexabiso lokuqhushumba elifunekayo kuqhushumbo olunye, kg.

2.3 Kubalwa ngokobuncinane besantya somoya esichazwe kwitonela

Q≥V_min•S (3)

apho:
V_imiz- esona santya sincinci somoya sichazwe kwitonela;m/umz.
S - indawo encinci ye-cross-sectional ye-tunnel yokwakha;m².

2.4 Kubalwa ngokwemveliso yeegesi eziyityhefu neziyingozi (irhasi, ikharbon diokside, njl.njl.)

Q=100•q·k (4)

apho:

I-100 - I-coefficient efunyenwe ngokwemigaqo (igesi, i-carbon dioxide ephuma ebusweni be-tunnel, i-carbon dioxide concentration ayikho ngaphezu kwe-1%).

q - ukuphuma ngokupheleleyo kweegesi ezinobuthi kunye neziyingozi kwitonela, m³/min.Ngokwe-avareji yexabiso lamanani alinganisiweyo eenkcukacha-manani.

k — i-coefficient engalinganiyo yegesi eyityhefu neyingozi ephuma etoneleni.Ingumlinganiselo womthamo omkhulu wokugubungula ukuya kumthamo wevolumu yokukhukulisa, efunyenwe kwiinkcukacha zomlinganiselo wokwenene.Ngokubanzi phakathi kwe-1.5 kunye ne-2.0.

Emva kokubala ngokweendlela ezine ezingentla, khetha enye enexabiso elikhulu le-Q njengexabiso lomthamo womoya ofunekayo kwi-ventilation yokwakha kwi-tunnel, kwaye ukhethe izixhobo zokungenisa umoya ngokweli xabiso.Ukongezelela, inani loomatshini bokutsha bangaphakathi kunye nezixhobo ezisetyenziswa kwitonela kufuneka ziqwalaselwe, kwaye umthamo wokungenisa umoya kufuneka unyuswe ngokufanelekileyo.