Ventilation Calculation For Inverter Room.xlsx 6k2v1r

CALCULATIONS FOR DRY PRESSURISED AND EXHAUST VENTILATION SYSTEM 1 2 3

OUTSIDE DESIGN CONDITION Outside DBT( Tout) in 0C

36.3 0

Maximum Temperature Rise( ∆ T) in C

4

Inside DBT(Tin) in 0C Density Correction Factor

1 2 3 4 5 6 7 8 9

EQUIPMENT HEAT LOAD Inverter Rating (KW) Euro efficiency (%) Loss as heat in inverter (KW) Loss in Aux power consumption(KW) Total loss as heat (KW) Total loss as heat for two inverters(KW) Loss in UPS (KW) Loss in LT (KW) Total loss as heat in inverter room

S.No. Building

1.0

Inverter Room

1.1

Inverter Room

:- Max. Average temp as per data shown below

3 39.3 0.94

500.00 98.20 9.165 0.413 9.58 19.16 0.40 0.10 19.66 Design Input Equipmen Lighting Total Volume of Air t Heat Load Heat Load the Changes Load Building per Hour

Heq KW

Hlgt KW =1W/Sq ft

HT KW =Heq+Hlgt

V Cu.M =A* height of building

AH

19.66

0

19.66

99.48

15

Calculation Air Air Qty as Max. of Requirement Per Air air as per heat Changes requirem load ent as per heat load & as per air changes QH QA Q CMH CMH CMH =HT *1000/( =V * =max of AH Q * ∆T * Density H and QA of air*Density Correction factor) 20442

1492

20442