ventilation system ppt

8/17/2019 ventilation system ppt

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{VENTILATIONMDM NURUL AINI/QUS 3206


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Definition - a means of !an"in" t!e ai# in an en$ose%

s&ae to '

VENTILATION REQUIREMENTS

(ee& f#es! ai# fo##es&i#ato#) s)stem *#ese#+e o##et $e+e$

Of O,)"en in t!e ai#

ont#o$ a#.on Dio,i%e

ont#o$ t!e moist#e $e+e$

Loe#in" t!e !eat $e+e$Remo+e %st an% o%o#s


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SSTEM O4 VENTILATION

Nat#a$Venti$ation Me!ania$

Venti$ation


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Definition - t!e oess of s&&$)in" an% #emo+in" ai#

t!#o"! an in%oo# s&ae it!ot sin" me!ania$

s)stems It #efe#s to t!e f$o of e,te#na$ ai# to an in%oo#s&ae as a #es$t of ess#e o# tem&e#at#e %iffe#enes

T!e .enefits of nat#a$ +enti$ation in$%e'-

5 Imo+e% In%oo# ai# 1a$it) IAQ7

2 Ene#") sa+in"s

3 Re%tion of "#een!ose "as emissions

8 O&ant ont#o$

9 Re%tion in o&ant i$$ness assoiate% with Sick

Building Syndrome

6 In#ease% o#:e# o%ti+it)

SSTEM O4 VENTILATION ;Nat#a$


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7/22

Reommen%ations f#om %esi"n "i%e$ines f#om +a#ios

.i$%in" #e"$ations s""est t!e fo$$oin"'

5 >i$%in" o#ientation an% $oation

2 >i$%in" fo#m an% %imensions

3 ?in%o t)&o$o"ies an% o&e#ations@

8 T)&es s!a&e an% siBe of o&enin"s@

9 onst#tion met!o%s an% %etai$in"@

6 U#.an &$annin" onsi%e#ation

SSTEM O4 VENTILATION - Nat#a$


8/22SSTEM O4 VENTILATION - Nat#a$

WIND EFFECT TAC! EFFECT C"#$INATI"NEFFECT


9/22

Definition - me!ania$ +enti$ation s)stems i#$ate f#es!

ai# sin" %ts an% fans #at!e# t!an #e$)in" on ai#f$o

t!#o"! sma$$ !o$es o# #a:Cs in a !omeCs a$$ #oof o#in%os enefits of sin" me!ania$ +enti$ation'-

5 >ette# in%oo# ai# 1a$it) ;an #emo+e &o$$tants

a$$e#"ens an% moist#e t!at an ase mo$% o.$ems2 Mo#e ont#o$ ; o+i%e o&e# f#es! ai# f$o a$on" it!

a&oiate $oations fo# inta:e an% e,!ast

3 Imo+e% omfo#t ; a$$o a onstant f$o of otsi%e ai#

into t!e !ome an% an a$so o+i%e fi$t#ation

%e!mi%ifiation an% on%itionin" of t!e inomin"otsi%e ai#

SSTEM O4 VENTILATION - Me!ania$


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T!ese s)stems em&$o) an e$et#ia$$) %#i+en fan o# fans to

o+i%e t!e neessa#) ai# mo+ement@

T!e) a$so ens#e a s&eifie% ai# !an"e an% t!e ai# n%e#

fan ess#e an .e fo#e% t!#o"! fi$te#s T!e#e a#e t!#ee

t)&es of me!ania$ +enti$ation s)stems'

5 Nat#a$ in$et an% me!ania$ e,t#at e,!ast s)stem7

2 Me!ania$ in$et an% nat#a$ e,t#at

3 Me!ania$ in$et an% e,t#at

SSTEM O4 VENTILATION -Me!ania$


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NATURAL INLET ME


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ME


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ME


14/22TYPES OF FAN

4ANS

*#o&e$$e# 4an

%oes not create much air

pressure an% !as $imite%

effet in %to#: I%ea$ fo# se

at air openings in windows

and walls.


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TYPES OF FAN

4ANS

A,ia$ 4$o 4an

an %e+e$o& high pressure an% is

se% fo# moing air through longsections o! ductwork T!e fan is

inte"#a$ it! t!e #n of %tin" an%

%oes not #e1i#e a .ase


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TYPES OF FAN

4ANS

ent#if"a$ 4an

an produce high pressure an% !as t!e

a&ait) fo# large olumes of ai# Most

site% to $a#"e# insta$$ations s! as air

conditioning systems It ma) !a+e one

o# to in$ets Va#ios fo#ms of im&e$$e# an

.e se$ete% %e&en%in" on t!e ai#

on%ition Va#ia.$e im&e$$e#s an% &$$e)

#atios f#om t!e %eta!e% %#i+e moto# ma:e

t!is t!e most +e#sati$e of fans


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ELL OR *ANEL T*E

4$at o# in a +ee fo#mation to in#ease

t!e s#fae ontat a#ea A+ai$a.$e in %#) o# et +isos7

om&osition in %is&osa.$e fo#mat fo#

sim&$e fittin" it!in t!e %to#: A

#i"i% ote# f#ame is neessa#) to

e+ent f$an:in" $ea:a"e of %i#t) ai# D#) fi$te#s an .e +am $eane% to

e,ten% t!ei# $ife .t in time i$$ .e

#e&$ae% T!e +isos fi$te# is oate%

it! an o%o#$ess non-to,i non-

f$amma.$e oi$ T!ese an .e $eane%in !ot soa&) ate# an% #eoate% it!

oi$

AIR 4ILTERS


18/22

>A= T*E

A fo#m of fi$t#ation mate#ia$

o+i%in" a $a#"e ai# ontat a#ea

?!en t!e fan is inati+e t!e .a"

i$$ !an" $im&$) n$ess i#e

#einfo#e%

It i$$ #esme a !o#iBonta$ ofi$e

%#in" no#ma$ s)stem o&e#ation

4a.#i .a"s an .e as!e%&e#io%ia$$) an% #e&$ae%

AIR 4ILTERS


19/22

ROLLER T*E 4ILTER

O&e#ate% mana$$) o# .)

ess#e sensiti+e sit!

As t!e fi$te# .eomes $esseffiient #esistane to ai# f$o

in#eases

T!e ess#e effets a %eteto#

!i! en"a"es a moto# to .#in"

%on $ean fa.#i f#om t!e to&

s&oo$

Se+e#a$ &e#fo#ate% #o$$e#s an .e

se% to +ee fo#mat an% in#ease

t!e fa.#i ontat a#ea

AIR 4ILTERS


20/22

VISOUS T*E 4ILTER T!ese !a+e a !i"! %st #etention

a&ait) an% a#e often s&eifie%fo# a&&$iation to in%st#ia$

sitations An imo+ement on t!e &ane$

t)&e !as $ose s&ae% o##"ate%

meta$ &$ates ontinos$) sa)e%it! oi$ A #otatin" +a#iation !as

fi$te# &$ates !n" f#om !ains T!e $oe# &$ates in t!e )$e &ass

t!#o"! a .at! of oi$ !i!

#emo+es atta!e% &a#ti$es an%#es#faes t!e &$ates it! $ean

oi$

AIR 4ILTERS


21/22

ELETROSTATI UNIT T*E

T!is !as an ionisin" a#ea !i! "i+es

ss&en%e% %st &a#ti$es a &ositi+e

e$et#ostati !a#"e

T!ese a#e on+e)e% in t!e ai# st#eamt!#o"! meta$ &$ates !i! a#e

a$te#nate$) !a#"e% &ositi+e an%

ea#t!e% ne"ati+e

*ositi+e$) !a#"e% &a#ti$es a#e

#e&e$$e% .) t!e &ositi+e &$ates an%

att#ate% to t!e ne"ati+e &$ates

T!e ne"ati+e &$ates an a$so .e

oate% it! a t!in $a)e# of oi$ o# "e$ fo#

"#eate# #etention of %st

T!e nit an !a+e s&&$ementa#)

e$imina#) an% fina$ fi$te#s as s!on.e$o "i+in" an o+e#a$$ effiien) of

a.ot FFG

AIR 4ILTERS


22/22

DETERMINE T

ventilation system ppt

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