I-ERV / HRV Isikhokelo sokuKhetha iMveliso
1. Khetha iintlobo ezifanelekileyo zokufakela ezisekelwe kwisakhiwo sokwakha;
2. Ukumisela umoya omtsha ofunekayo ngokosetyenziso, ubungakanani kunye nenani labantu;
3. Khetha iinkcukacha ezichanekileyo kunye nobungakanani ngokuhambelana nomoya omtsha omisiweyo.
Ukuhamba komoya okufunekayo kwizakhiwo zokuhlala
| Uhlobo lwamagumbi | Abangatshayiyo | Ukutshaya kancinci | Ukutshaya kakhulu | |||||
| Ngokuqhelekileyo kwiwadi | Ijim | Ithiyetha & Imall | Iofisi | Ikhompyuter igumbi | Ukutya igumbi | VIP igumbi | Intlanganiso igumbi | |
| Umoya omtsha wobuqu ukusetyenziswa(m³/h) (Q) | 17-42 | 8-20 | 8.5-21 | 25-62 | 40-100 | 20-50 | 30-75 | 50-125 |
| Utshintsho lomoya ngeyure (P) | 1.06-2.65 | 0.50-1.25 | 1.06-2.66 | 1.56-3.90 | 2.50-6.25 | 1.25-3.13 | 1.88-4.69 | 3.13-7.81 |
Umzekelo
Indawo yegumbi lekhompyutha yi-60 sq. metres (S=60), ukuphakama komnatha ziimitha ezi-3 (H=3), kwaye kukho abantu abali-10 (N=10) kuyo.
Ukuba ibalwa ngokuhambelana "nokusetyenziswa komoya omtsha wobuqu", kwaye ucinge ukuba: Q=70, isiphumo sithi Q1 =N*Q=10*70=700(m³/h)
Ukuba kubalwa ngokwe “Utshintsho lomoya ngeyure”, kwaye ucinge ukuba: P=5, isiphumo sithi Q2 =P*S*H=5*60*3=900(m³)
Ukususela kwi-Q2> Q1, i-Q2 ingcono ukukhetha iyunithi.
Ngokubhekiselele kushishino olukhethekileyo olufana nezibhedlele (utyando kunye namagumbi awongikazi awodwa), iilebhu, iindibano zocweyo, ukuhamba komoya okufunekayo kufuneka kumiselwe ngokuhambelana nemigaqo echaphazelekayo.