this is how
floor areas is 7,276 sqf (A)
bldg ht is 29.52 f (B)
= 214,787.52
Production vol * 50% (C)
= 107,393.76
Air Change * 3% (D)
= 322,181.28
/ 60...
is this the correct computation for exhaust
example:
floor area A
bldg height B
product vol C
Ventilation
Air Change D
Exhaust fan A x B x C x D / 60
= CFM Exhaust fan
=supply CFM * 105%
its only a loading area of a dhl but there is no ventillation in st so very hot inside
my clients want a 2 exhaust fan and 1 fresh air the area is 104.96ft width 167.28ft length and 29.52ft heigth.
that is the formula that im using.and the air change is 3min per hour. the output is 5370 cfm and...
production volume of the warehouse!
to mintjulep how about the air change is there any standard for all location?
if no how to compute the air change of the area?
is this the correct computation for exhaust
example:
floor area A
bldg height B
product vol C
Ventilation
Air Change D
Exhaust fan A x B x C x D / 60
= CFM Exhaust fan
317069
0.06 cfm/sq.ft is the minimum, you could go over with any rate, But
your area: 1500+(4*500)=3500 sq.ft
Ashrae rate: 3500*0.06 = 210 cfm
210*60= 12600 cubic feet per hour
12600*(3500*20)= 0.18 air change per hour
it is ok for this kind of building
where did you get the 20?
0.06...
