22012066 esp calculation data sheet final
DESCRIPTION
External Static Pressure Calculation SheetTRANSCRIPT
IN.WG PASCALS
PR.LOSS IN STRAIGHT DUCTS = 0.0349 8.6899
PRESSURE LOSS IN ELBOWS = 0.0051 1.2629PRESSURE LOSS IN REDUCERS = 0.0227 5.6601
0.0125 3.122620% SAFETY FACTOR =
TOTAL PR.LOSS =0.0752 18.7356
S.NO ITEM REFRENCESIZE IN mm SIZE IN in
EQUIVALENT DIAW H W H
1 STR.DUCT A-B 200 150 47 28 8 6 91.8 7.6 100 0.038 0.0349 8.692 STR.DUCT B-C3 STR.DUCT C-D4 STR.DUCT E-F
= 0.0349 8.69
FLOW RATE L/S
LENGTH IN M
LENGTH IN FT
FLOW RATE CFM
PRESSURE LOSS/100FT
PRESSURE LOSS (IN.WG)
PRESSURE LOSS (PASCALS)
CLICK HERE
TOTAL FRICTION LOSS IN STRIGHT DUCT
PRESSURE LOSSES IN ELBOWS
S.NO ITEM REFRENCESIZE IN mm
R θ H/W R/WWidth(W) Height(H) Coefficiant-C
1 ELBOW EL-1 300 300 284 150 300 1.0 1.0 0.21 0.284 622 0.0242 0.00512 OUTLET
= 0.005
FLOW RATE L/S
RADIUS OF ELBOW(r)
CLICK HEREFLOW RATE
M³/sVELOCITY IN
FPMVELOCITY
PRESSURE(Vp)
FITTING LOSS(IN.WG) =
CxVp
TOTAL PRESSRE LOSS IN ELBOW
PRESSURE LOSSES IN ELBOWS
1.26
1.263
FITTING LOSS(PASCALS)
S.NO ITEM REFRENCESIZE IN mm
W H
1 REDUCER RD-1500 300
30 300 0.12786200 200
2 REDUCER RD-2400 300
30 100 0.01421200 200
3 REDUCER RD-3 30 150
4 REDUCER RD-4 30 800
5 REDUCER RD-5 30 200
6 REDUCER RD-6 30 500
7 REDUCER RD-7 30 600
8 REDUCER RD-8 30 800
9 REDUCER RD-9 30 200
10 REDUCER RD-10 30 300
ANGLE (θ)
FLOW RATE L/S
VELOCITY PRESSURE
A1/ACOEFFICIANT
1.67 0.44 3.8 0.06 0.00767
1.33 0.44 3.0 1.06 0.01506
2.06
= 0.02273
AREA-1 (A1) sqf
AREA-2 (A) sqf
CLICK HERE PRESSURE LOSS IN "IN.WG"
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TOTAL PRESSURE
LOSS
1.91029
3.74984
5.66013
PRESSURE LOSS IN "PASCALS"
1
EQUI.DIA = (WxH) POWER 0.625)/(W+H)POWER 0.25
W = WIDTH OF DUCTH = HEIGHT OF DUCT
2
TOTAL PRESSURE LOSS IN FITTING = C x Vp
C = FITTING LOSS COEFFICIANT Vp = VELOCITY PRESSURE
31 IN.WG = 249 PASCALS
41L/S = 2.119 CFM
1FLOWRATE 0.284AREA 0.09VELOCITY 3.155556VELOCITY 621.6444