E Ductulator09 (1)

Supply Duct Width or Height See "Eqv. Len." worksheet for equivalent lengths of common fittingsAir Flow Dia. if round 0 if round Velocity Hyd. Dia. Roughness Δh/100' Length Leqv A # As Leqv B # Bs Leqv C # Cs Leqv D # Ds L(total) Δh

cfm Inches Inches fpm Inches Feet "Wtr./100' ft. ft. ft. ft. ft. (in.wtr.)1 18 1 18.0 Galv Steel (0.00025) #VALUE! 0 #VALUE!

Notes-->1 14 1 14.0 Galv Steel (0.00025) #VALUE! 0 #VALUE!



For Sizing Par. Path Notes-->1 10 2 10.0 Galv Steel (0.00025) #VALUE! 0 #VALUE!

For Sizing Par. Path Notes-->1 1 183 1.0 Galv Steel (0.00025) #VALUE! 0 #VALUE!


Notes-->Diffuser See "Diffusers" worksheetcfm Rated cfm Rated Δh

1 1 0.000Return Duct Width or Heightcfm Dia. if round 0 if round Δh/100' Length Leqv A # As Leqv B # Bs Leqv C # Cs Leqv D # Ds L(total)

1 28 20 0 25.8 Galv Steel (0.00025) #VALUE! 0 #VALUE!Notes-->

1 1 183 1.0 PVC (0.0001) #VALUE! 0 #VALUE!Notes-->

Grill Notes:cfm Rated cfm Rated Δh

1 1 0.000Filter See "Filters" worksheet

Rated Vel Face Vel Rated Δh Notes:cfm Area (sq. ft.) fpm fpm in. water

1 1 300 1 0.000Total #VALUE!

See HVAC Simplified, pp. 130-138 for Instructions

See also HVAC Simplified, pp. 129-130 for Instructions

Δh (dirty) ÷ Δh (clean)

E-Ductulator - Equal Friction - Equivalent Length Method See HVAC Simplified (Kavanaugh, 2006) available from ASHRAE for additional details and instrutions.

Note 2: If Macro security level is set at high, this program will result in errors in the cells [NAME?]. To reset the security level (Office 2003 and earlier),1. Close the program.2. Click on "Tools" on the main tool bar, select "Macro", select "Security.3. Reset security level to Medium (recommended) or Low4. Exit Excel5. Re-Open Excel 6. Run program

For 2007 Office products, the terminology "trust" has replaced "security" and the procedure has been changed (as you might expect). To change the "trust" settings:

Open Excel Click the Office Button (top left corner of screen) Click on "Excel Options" button @ the bottom of the pop-up window Click on "Trust Center" Click on "Trust Center Settings" Click on "◘ Enable all macros.." Open and Run the programs An option would be to reset the trust setting by repeating steps 1 thru 5 and, Click on "◘ Disable macros with notification"

Round DuctFitting Eqv. Length @ Δh/L=0.1”/100’ Eqv. Length @ Δh/L=0.3”/100’Type

Std. 90°L (R/D=.75) 16 30 40 18 22 4490°L (R/D=1.5) 8 15 21 10 16 24

Std. 45°L (R/D=.75) 11 18 27 12 21 3045°L (R/D=1.5) 4 6 9 5 7 10

Tapered (45°) Reducer 4 5 10 4 6 11Non-tapered Reducer 8 14 21 9 16 23

Tee (branch) 34 60 87 39 67 97Full Flow Tee (branch) 13 22 32 14 24 35

Wye 8 8 13 14 19 21Stub Wye 17 29 43 19 43 38

Full Flow Wye 14 24 35 16 27 39Straight Boot 5 6 11 6 8 13

End Boot 30 55 80 35 60 90Elbow Boot 20 30 48 21 30 53

Register Saddle 35 60 90 40 65 95Top Ceiling Box 20 35 50 23 40 55

Plenum Take-off (20°) 13 22 32 14 24 3545°Tapered Plen. Ret. 10 18 26 12 20 30

No-taper Return 28 50 70 31 55 80Return Grill Box 13 23 33 15 25 37

Tapered (45°) Ret.Grill 6 10 15 7 11 17

Rectangular DuctFitting

Type w/h=1 w/h=4 w/h=1 w/h=4Rectangular Elbow 65 90 70 100

Rect. Elbow with Vanes 14 14 25 2545º Rectangular Elbow 18 27 20 30

Radius Elbow (R/w=.75) 24 40 27 45Radius Elbow w. Vanes 2 4 2 5

Square Tee 50 90 55 100Square Tee w. Vanes 16 30 18 34Radius Tee (R/w=1.5) 16 30 18 34

Square Transition 12 13 19 213-Straight Side Transition 5 5 5 5

2-Straight Side Transition 5 5 5 5

Return Grill Box 19 20 21 22Plenum Outlet (no radius) 40 40 44 44Tapered (45°) Ret.Grill 8 9 9 10

8”Æ Dia. 12”Æ Dia. 16”Æ Dia. 8”Æ Dia. 12”Æ Dia. 16”Æ Dia.

Eqv. Length @ Δh/L=0.1”/100’

Eqv. Length @ Δh/L=0.3”/100’

(Base Leqv on outlet size) Ain/Aout=2 Ain/Aout=4 Ain/Aout=2 Ain/Aout=4

Ain/Aout=0.5 Ain/Aout=0.25 Ain/Aout=0.5 Ain/Aout=0.25

T ap ered R eturn

R eturn G rillB o x T rans itio n

P lenum o rC o il C ab inet

T ap ered R eturn G rill T rans itio n

R

4 5

4 5

R ad ius T ee

45R ec t.T ake-o ff

R ec tangular T ake-o ff

R o und T ake-o ff45 R o und T ake-o ff

S m o o thR ad iusElb o w

R ec t-R o und T rans itio n

T rans itio n3 S traight s id es

R ec tangular E lb o w

C o nic alT ake-o ff


S q uare T ee

S q uareT rans itio n

w

R

w

h

w

45°Tapered Plen. Ret. 15 29 17 32No-taper Return 28 50 31 55

Round Take-off 35 60 40 7045º Round Take-off 17 30 20 40

Conical Take-off 25 43 28 48

Rectangular Take-off 48 52 55 6045º Rect. Take-off 50 55 60 65

8”Æ Dia. 12”Æ Dia. 8”Æ Dia. 12”Æ Dia.

QTO/QM=.1 QTO/QM=.4 QTO/QM=.1 QTO/QM=.4

T ap ered R eturn




R

4 5

4 5

R ad ius T ee

45R ec t.T ake-o ff









S q uare T ee


w

R

w

h

w

A ngle B o o t

S id e C eiling B o x

S traight B o o t

T o p C eiling B o x

E lb o w(90 , 4-p iec e)

W yeB ranc h

Elb o w (45 , 2-p iec e)

P lenumT ake-o ff

F ull F lo wW ye B ranc h

S tub W ye B ranc h

Elb o w B o o t

End B o o tT ap eredR ed uc er

F ull F lo w T ee

T ee

R egis ter S ad d le

R ed uc er

P lenum R eturn (N o T ap er)

T ap ered R eturn




D

R

2 0

4 5

4 5

R o u n d D u ctF itt in gs an dT ran s it io n sfo r T ab le 9 .8

T ap ered R eturn




R

4 5

4 5

R ad ius T ee

45R ec t.T ake-o ff









S q uare T ee


w

R

w

h

w

T ap ered R eturn




R

4 5

4 5

R ad ius T ee

45R ec t.T ake-o ff









S q uare T ee


w

R

w

h

w

Table 9.7 Air Filter Performance and Ratings (ASHRAE, 2004, c. 24; American Filtration, 2004, AirGuard, 2004)

Type Depth(inches)

Std. 52.2MERV

Δh (in.) @300 fpm

Δh (in.) @500 fpm

Rec. Final Δh (in.)

DustSpot Eff.

FiberglassDisposable

1 4 0.10 0.20 0.5 -2 4 0.13 0.28 0.5 -

Pleated 1 6 0.20 0.45 1.0 25-30%2 6 0.13 0.30 1.0 25-30%4 6 0.12 0.25 1.0 25-30%

Pleated 1 8 0.29 0.59 1.0 30-35%2 8 0.20 0.40 1.0 30-35%

ExtendedSurfacePleated

1 11 0.27 0.54 1.0 60-65%2 11 0.18 0.38 1.0 60-65%4 11 0.10 0.22 1.0 60-65%

Ext. Pocket 22 11 0.13 0.37 1.5 60-65%

Table 9.7 Air Filter Performance and Ratings (ASHRAE, 2004, c. 24; American Filtration, 2004, AirGuard, 2004)

Type Depth(inches)

Std. 52.2MERV

Δh (in.) @300 fpm

Δh (in.) @500 fpm

Rec. Final Δh (in.)

DustSpot Eff.

FiberglassDisposable

1 4 0.10 0.20 0.5 -2 4 0.13 0.28 0.5 -

Pleated 1 6 0.20 0.45 1.0 25-30%2 6 0.13 0.30 1.0 25-30%4 6 0.12 0.25 1.0 25-30%

Pleated 1 8 0.29 0.59 1.0 30-35%2 8 0.20 0.40 1.0 30-35%

ExtendedSurfacePleated

1 11 0.27 0.54 1.0 60-65%2 11 0.18 0.38 1.0 60-65%4 11 0.10 0.22 1.0 60-65%

Ext. Pocket 22 11 0.13 0.37 1.5 60-65%

Major Dia. DMajor 28 InchesMinor Dia. DMinor 18 Inches

Eqv Dia 22.7 Inches

Diffuser SelectorRoom = Example Problem 9.1

Diffuser Type = Rect. Louvered CeilingSize (in. x in.) = 12 x 12Manufacturer Nailor

T50/Lmin = 1.4T50/Lmax = 2.7Lx 10 ftLy 12 ft

T50min 16.8 ftT50max 27.0 ft

Interpolatorcfm1-table cfm2-table cfm-Reqd

435 520 500T50 22 26 25.1 ftNC 27 31 30.1 NCTP 0.094 0.136 0.126 in. water

See HVAC Simplified, pp. 124-128 for Instructions

Documents

E Ductulator09 (1)