04-minimum iaq performance table 6.3

Project : Big Band - Incubation Building , ASF, Gwal Pahadi, GurgaonLEED Compliance: Minimum IAQ performance and Enhanced ventilation calculations (Table 6.3 of ASHRAE 62.1)

MVAC Consulting Engineers : Dew Point Consultants Pvt Ltd.An ISO 9001 : 2008 certified company

Page No.38Version-1-02.05.12

Zonal description Standard case : ASHRAE Std 62.1-2004 , Verification rate procedure

Zone

Occ

upan

cy c

ateg

ory

Area

Peop

le o

utdo

or a

ir ra

te

Area

out

door

air

rate

Occ

upan

cy

Occ

upan

cy d

ensit

y

Out

door

air

inta

ke fl

ow (V

ot )

SqFt CFM/Sft # #/1000 (CFM) (CFM) (CFM) (CFM) (CFM) (CFM) (%)

1 Basement-1

1.1 Lift lobby 258 5.0 0.06 4 16 35.48 1 35.48 1 35 46 50 600 0.06 40.92% 1 1

2 Basement-2

2.1 Lift lobby 258 5.0 0.06 4 16 35.48 1 35.48 1 35 46 50 600 0.06 40.92% 1 1

3 Basement-3

3.1 Lift lobby 258 5.0 0.06 4 16 35.48 1 35.48 1 35 46 50 600 0.06 40.92% TRUE TRUE

4 GROUND FLOOR

4.1 Office 7510 5.0 0.06 115 15 1025.60 1 1025.60 1 1026 1333 1350 18000 0.06 31.63% TRUE TRUE

4.2 Entrance 4690 5.0 0.06 50 11 531.40 1 531.40 1 531 691 700 12000 0.04 31.73% TRUE TRUE

5 First floor

5.1 Office 12718 5.0 0.06 195 15 1738.08 1 1738.08 1 1738 2260 2300 30000 0.06 32.33% TRUE TRUE

6 Second floor

6.1 Office 12590 5.0 0.06 195 15 1730.40 1 1730.40 1 1730 2250 2300 30000 0.06 32.92% TRUE TRUE

7 Third floor

7.1 Office 12320 5.0 0.06 190 15 1689.20 1 1689.20 1 1689 2196 2200 30000 0.06 30.24% TRUE TRUE

8 Fourth floor

8.1 Office 12050 5.0 0.06 185 15 1648.00 1 1648.00 1 1648 2142 2200 30000 0.05 33.50% TRUE TRUE

Design Case with enhanced ventilation (If Applicable)

Brea

thin

g zo

ne o

utdo

or a

ir flo

w (V

bz )

OR

V ou

Zone

air

dist

ribut

ion

effe

ctive

ness

(E

z)

Zone

out

door

air

flow

(Voz

)

Syst

em v

entila

tion

effic

ienc

y

(

Ev)

Out

door

air

inta

ke fl

ow

(CAL

CULA

TED

@30

% e

xtra

) IF

APP

LIC

AB

LE

Out

door

air

inta

ke fl

ow

(RO

UNDE

D O

FF)

Zone

prim

ary

Air f

low

fract

ion

(

Vpz

)

Prim

ary

Out

door

air

fract

ion

(Zp=

Voz/

Vpz)

% in

crea

se o

ver s

tand

ard

(NO

T TO

BE

BELO

W T

HE S

TAND

ARD

CASE

) This zone qualifies for

LEED_CS IEQ Cr-2

This zone qualifies for EQ PR-1 (Minimum

IAQ performance)

CFM/ person





Zone

Occ

upan

cy c

ateg

ory

Area

Peop

le o

utdo

or a

ir ra

te

Area

out

door

air

rate

Occ

upan

cy

Occ

upan

cy d

ensit

y

Out

door

air

inta

ke fl

ow (V

ot )


Brea

thin

g zo

ne o

utdo

or a

ir flo

w (V

bz )

OR

V ou

Zone

air

dist

ribut

ion

effe

ctive

ness

(E

z)

Zone

out

door

air

flow

(Voz

)

Syst

em v

entila

tion

effic

ienc

y

(

Ev)

Out

door

air

inta

ke fl

ow

(CAL

CULA

TED

@30

% e

xtra

) IF

APP

LIC

AB

LE

Out

door

air

inta

ke fl

ow

(RO

UNDE

D O

FF)

Zone

prim

ary

Air f

low

fract

ion

(

Vpz

)

Prim

ary

Out

door

air

fract

ion

(Zp=

Voz/

Vpz)

% in

crea

se o

ver s

tand

ard

(NO

T TO

BE

BELO

W T

HE S

TAND

ARD

CASE


LEED_CS IEQ Cr-2


IAQ performance)

9 Fifth floor

9.1 Office 11943 5.0 0.06 183 15 1631.58 1 1631.58 1 1632 2121 2200 30000 0.05 34.84% TRUE TRUE

0

10 Sixth floor 0

10.1 Office 7695 5.0 0.06 118 15 1051.70 1 1051.70 1 1052 1367 1400 20000 0.05 33.12% TRUE TRUE

Total 82,290 1243 14,498 14800

Note : For general offices space air distribution is overhead, hence Ez=1

Out door air fraction, Zp is less than 0.15, hence system ventilation efficiency is 1.0

For cells highlighted in blue above (zones having Zp equal to or less than 0.25) the Ev has been modified to 0.9 ; And increase in ventilation load accounted for in the final selections.





Zone

Occ

upan

cy c

ateg

ory

Area

Peop

le o

utdo

or a

ir ra

te

Area

out

door

air

rate

Occ

upan

cy

Occ

upan

cy d

ensit

y

Out

door

air

inta

ke fl

ow (V

ot )


Brea

thin

g zo

ne o

utdo

or a

ir flo

w (V

bz )

OR

V ou

Zone

air

dist

ribut

ion

effe

ctive

ness

(E

z)

Zone

out

door

air

flow

(Voz

)

Syst

em v

entila

tion

effic

ienc

y

(

Ev)

Out

door

air

inta

ke fl

ow

(CAL

CULA

TED

@30

% e

xtra

) IF

APP

LIC

AB

LE

Out

door

air

inta

ke fl

ow

(RO

UNDE

D O

FF)

Zone

prim

ary

Air f

low

fract

ion

(

Vpz

)

Prim

ary

Out

door

air

fract

ion

(Zp=

Voz/

Vpz)

% in

crea

se o

ver s

tand

ard

(NO

T TO

BE

BELO

W T

HE S

TAND

ARD

CASE


LEED_CS IEQ Cr-2


IAQ performance)

vbz ventilation of a breathing zone .=vp+va Table 6-3 (ASHRAE 62.1-2004)

vp ventilation for a person Ev (system ventilation efficiency)

va space / area ventilation less than or equal to 0.15 1.0

rp rate of ventilation for a person less than or equal to 0.25 0.9

ra rate of ventilation for a area less than or equal to 0.35 0.8

pz population of the zone (occupancy) less than or equal to 0.45 0.7

az area of the zone less than or equal to 0.55 0.6

ez zone air distribution effectiveness more than 0.15 Appendix A

ev system ventilation efficiency determined as per appendix-A OR table 6.3

vot .=vou/ev for a single zone system vot=voz

voz zone outdoor air flow .=vbz/ezvou un-corrected out door air .=(rp*pz+ra*az)zp primary out door air fraction .=voz/vpz

vpz zone primary air flow this is primary air flow to zone from ahu including outdoor air and recirculated return air

Max Zp (Zone primary out door air fraction)

design outdoor intake air (applicable for multiple zone AHU supplysing recirculated mixed air to many zones)

04-minimum iaq performance table 6.3

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