KITCHEN HOOD DOUBLE SKIN-DESIGN FOR MEDIUM COOKING
STOVE SIZE:
WALLTYPE- HOOD
Designing of kitchen hood of wall type
STOVE SIZE: 0.5MX0.65M
P=2l+W (wall type)
As the stove size is 0.5mx0.65m
HOOD LENGTH = L
HOODWIDTH = W
STOVE LENGTH = l
STOVE WIDTH = w
HOOD LENGTH, L = l+0.8H
= 0.65+0.8X.0.75
= 0.65+0.52
= 1.17meters X 3.28FT
= 3.84FT
HOODWIDTH, W= w+0.8H
= 0.5+0.8X0.75
= 0.5+0.52
= 1.02metersX3.28ft
= 3.35ft
HOOD SIZE = 3.84FT X 3.35FT
= 1170.4mmX1021.08m
Fabrication hood size is 1200mmx1000mm
CALCULATION OF EXHAUST AIR DUCT SIZE:
As we know that, P=2L+W
=2X3.84+3.35
=11.03
CFM for medium cooking = P X150
=11.03X150
=1654.5 CFM
Q=AXV
Selecting velocity as1800 FPM
AREA, A=Q/V
=1654.5/1800
=0.919ftsqX0.093
=0.0854meters
A=WXH
Assuming height=0.3meters
0.0854=WX0.3meters,
W=0.0854/0.3
=0.285METERS
DUCT SIZE=WXH =O.3X0.285=3OOMMX285M
EXHAUST AIR DUCT SIZE =300MMX280MM
CALCULATION OF FRESH AIR DUCT SIZE:
Fresh air CFM=1654.5X0.80 (The value 0.80 is multiplied to maintain negative pressure)
=1323.6
=1323.6 CFM of fresh air to be supplied
Q=AXV
FOR V=1800FPM
A=Q/V
=1323.6/1800
=0.735ftsq
= 0.735X0.093
=0.0683meters,
A=WXH
Assuming H=0.3meters
W=A/H
=.0683/0.3
=0.227meters
FRESH AIR DUCT SIZE=O.227X0.3METERS
=300MMX200MM
Which standard is this? H means height between stove and hood??
ReplyDeleteIn our case the height bet ween stove and hood is 1.5 meter. is that will cause a problem? how could i overcome if it is not effiicient by changing parameters other than height?
ReplyDeleteFantastic and useful we blog thanks for publishing this.it's useful and informative.keep up the great.
ReplyDeleteIn-Line Duct Fan Mixed Flow