BL 8103

STUDY FOLDER Nadia Mahbub

CLASS NOTES

fne-rgg Effi a,te,+ W /4.f".u4\\nw\t,

Thormd ottv r't oomettF

Ttzvz*ch ve

\ n;^A;, {l"t+e o-fa guaol'udoot (ra\l, 4<hW

tFa.

tn l.6q{a I

1".;ldq 6oie.ua \ tn""tq rl5o+vtcts ,,

Thanr^4l , *e,,*p , P.H , U4 ve-loa\vt,,,td wr4 iy'uleui\Ataral ; €pL

L4,othd)

, Tharbai pnrkr rn a^et of build-,"'r) Q.,Avdnp

K- 't 4hl9 a TaA are* -{br lqe^f l.auslu k-t' i-udla( [ ouldor

a=i +i = t Ki

t afr,v1 --+Ny ),-ra.t \Ct't1

, g;ldLrz^ *a,:,v\ces+- H vAc

t Lhuo*^r, , vo.uhlatcrtt , dtt cod*)

a,,4 {lru,x+i

A\ {fu2 52ayia a,ot be

<- \v'*t*4 btrtr\acl 4 A%t5W),

L.e4a) *anzwotlt-O k^AL4 cade

" re4dc^t^rus, 9\-a/AarAt

f+ u;+t, e, tuIr[.12r' Are VtotecAcn3# skucltuil g,r{ornwuu{r hJf.achdh wJe,rajsE etvxXy ofiic^o^|, Susk-;Lile

O 0,.1 z, r.t rul i BY. LAWS.

l* usa d l^ovlztr b",.tlcl;u-,1 sr3r- ,hoght .,sfurey .

3 + Ioc,r-trar'. "ot b;\A,.1 66 lol 11 tF

@ crHrP. ,ArpLr C.agLE l-Ard5 .. ( lxclptw yeusrr Hcr' frJc pv.'lccho-'r (W9 ,d.qA rn ]',".'i.^, /trt\er.,l axl ,2F Lny,tJnmenl pr.-l ec liarr L '/

3F Pub 1rc kru,rpo ettliarr

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WEEK 02-WnT

^ JAN ,atb.

?n ew t^nclnn L Pu4 cl."o u eV i cs lA '4uAa of k^.*aa *r ,

-fl,u.rt"rt f*p,** al lu,,-,,-il rti,rWr*rfd' drr eoaa.,l: oF -' et, *"-* ( or,Nr,qz, hr6rn V,), W.ol q1^.rL (v",pat1 .r_

cenAde{eA a.s 1d4A)

* YrtAI /^ +u! d*brur4+ b*6 yz>z".re."to*.p, vdt -to,u.

"n .

Y;x rr v a273.\si r)lla,rmd ?royo,rhu (yonl"t"lus) * ?hA)d ,

a -la-u+t0atu-r<- L L7 C"c-7

" le.*te) of ln r-""id;fu '(" Dot^t 7oA* 11," L,t a7'"1

Nak""ll a-rl a.)rle cat tA. be vwaN,,rzA ,fl,.drl*J vorlaits,, kolo

L6-.t^ we MtAqu,re- *L4 ats Weil,

M44 4 p,tot+ta-te- ar, k;"a4,kffb ru th u,'bz

n,pislu,re eo,tQ,"] (q), Cd_),cwaF; xg/rXAa W=*A;r7

wd] ""-s- o,eg N o'oz; lgtra ao.

; f /k6 dA. f y,44+ "*rVr-^+1

@

*L^a 'f ly*, iJik

r,rwi+t,^,r" uit"S' ; M/t<n Aq ,4,Rd"*,:re. Wu^n"(qi zi , Z "

(ti )

L^e &4 = llo,f, aGpat*3RF z oi.ere, -l

ht lwL +A,fl =V,uX n^-

' Iwo 'uud-oy" bt* v at\ahlet,)

f n lu-[

-- Hdho

itl$'. ou',.ter'

--)1 I ll'rt--->@t. I llr\'{ l/ I i+\r ri

| \- \ ,,-.!+/

H."t^{CF,rtJ

AaAh"Aq^4', KXJ /e f wl &.n.

w,Ygls, \"Lc -- QnU.t^1 t,lbr^J7

6 l"".rr< ,l-t,, x ,rt' -- l't ,x u ,- 6s' -

h -- e-uzrtl lr{lun a,,] ,

" tu-A bblo 4e*-7 Lx)" u;*a;4 <"h, = nai*h,4n uuu* L\>

hr 11,^anil,3a ?rouss

t | -- 2-a"L.

Rll | = bo/"

illb

atq'

tr'2oL Lr- 17t

h"= t4tlb'

^o/z -

Ntl tq.

- l^ x L4-.- t t'L

-1h-, = 71-1

hf'

'{,\a - ta 1t(-dt t1

Lu, , *'+ aY,, = h zxh:a$Qrg!

BrY"6A"FSU.tnz

* Mass

(hr)xnt*atthz= ta,+€lL-

tu:

l2q/17 i

rd(e

3_O

L

Luffi) +w*7/rS a^i

Q* = eo lltl'

L+L1t{or..i ,l Y*r .t ,,1 [-<:/*f ,' .]

.ft an ( tt?^,l,iw. (^la.t\hO- [r<l^ri

0la"-,r-t"zViewn (n^7r1

,

""1,

,i. \'. N\

t14-

,l

.'

t/o

@

@) vtv

lvtiT tnr,

>t mz r*t'rc' cnn+.** CL1Y)+daa Powl t"^!iv"t +t*'" g*fu-

iAz^-\ /a'c Ft1 aofue- lt* Rr\ g5N4o/,

LfBH,=

t=

+_Rtl-N*

bd;*A.=LkN,

b,ty-

X,-- 4ny

,a, = h,rirghs'zs T6nlaal- = ll

6, - b1'b'txtlgtaOo= lo Kw

&c- . 14 Kv!ht= h,-* w,

q2lG - I

2,

aL"c-

Lryvqdl

- 4A'q

ri v;

Lr= aa'b"e ii.- (rr = efl /.

a,,)l;ii) '+*.r",delet wcfzru- +ra' dilD p14+

M;4.^,re, h"terh (7)<---) La'r'.',lf

H,,iit" y*oish*z L6.,4od- daarb"fu^*tlu" t"^ a- rarkqz U , *klzr lilL4-v,)o Wat-r^*ai,,a rrl.:..t- fitd.m'r lrt*. au) a,^l oiL bufu49",hs7,-,

vr)aF<x droy "rtt, +L^4 atr u,ta*'es fqy.

'TVz uu-v3 Wul ^ ilur\Ll,LL * witylr"rz +l"A+

<^/"bl q 9*a"4 hrihLil t^".^;) air ot r,oo-trd-t

an1 u t""l"t" +r*-p, * tur-*"U air ,

fr*** =- A" La = 9^l.q"].r-17= qrLv).

hr^*i^.a &r LL,Ptt)fls )nXr.-*?e-tu,jole,'" ' xc 5alkx ^j;nu-

1J,

o* *ff\ryc|n +t Lz-

t<vtij : "ttr,-1cd,

Cst auLlr ocLg;,

k aprrlft" uHr'J{',,4 , RH

v'lat uaLiu3 Lt*o-+ rr" L\)lA, pil- l<^4 is a fi' *in { v"" fi''r' qaf-e'h

rv)

0 Inktiltcliou k ll'e w.oddu,j

baX&XL4 ler b*uno--tn(yl^-o-,r mil , vir,',,,A, arr.ra)

U,o+ bz ?r" fud LL4a3 u@a1 ',;ual*ifi*

wdrKalq 10 l^a^tL

d^^d4+i& hl,.,h;,ts

wm/; Q +Xr+r-)

4i^r\hrl ?hdr^c"J wnA?)

t"la*wuz$ ed Plofu)<Eq,uhtus)

Lfres M*W ado)

N o,.t^,o-,ri d ,.olr'^hbu orytudt

w+'{;rt,rr ,hLt"'A l^ a-p^t t

ad*t^la,te

CUD

e)

Ve^u^ru)Ou*?*

Ou+ujs

(ovaorr"I

Y,ALaAu.(d ad "/^i^*rld.bu @

calc,.ld)n

b,*y An .-7 f (tr 5' lqil) 't5 nr^''rra

qy lH'{Ae, x .4t = Qrnr

49. x (tq - u,) L\u "K(i) Et n .

nL^)*a

%c-a

n'^l=x

Cm.)

f^*x o^xcox (ba-1,

(v; w) (a,at4

A.*aw ,, .rc

a/s.o (.,

@

AA = Q. rN- 6odr

Shrcd dEVra: VXPxcax ft^cxn)-{arD]Ersgychr<tr. U\ &h)F/r,c) C%)

r^,t 'orhoot atr

sma,u A,( i Speuha beal , ,/rO""

bit A --V xpxeo , f,/"o

\ Takl A1*tu{b\

lon,Aba = nn,tao x Ar- (a11+q*S)xAt

u x * : 4uyae - (a,ac + Q,c^d)

$2 h y) lWa 'wk. exczt.

@

clu!- w orlL 2 A un eq a"r,l raass {1 ora rate (q/s) . @ vdr",,<- n*1ri*-9= aw,t lQ/s)r / $fr-oao

h: = a]'.ao5tt'81*6)xt + zsorfr hl'<1/r4a\n -' AYytdo ! o. n LaVr@4

6..t". yvLx(hz-hO dr L rwl

- tvt-s\(t'oos + t',cxT)xL, S z>o I xg-- Lt'oos

^'t'81xXr)x it - 25ox(J_t

- t'r,LX Ct'o.oS +tB.tAO x (t2-tr)

&i^ +

AJale i

KW.

1l o 4L*{

{1"" ."+p"+ + t^ullg ,."t /*p,.;1,

ENEPqq fFrr orNl ,8 JAN 2015.

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Modd i Gyr"ro:li,^te L+tattletrea taols

?nc*owzl.g

lil*'dd kir

I Aaa)

s*x*L.r\++""r"

flases

\ Lw')L ("c-)

M CYfi)

Iae.l frot

PV

Eaf^af;n

= # x Rx (27"'rq +t)X.- w L-dar Ute;3t*

al 4ae

. rlrv & o

ll, -il- n[ \ 'l

L mi&+"'e *

Po* (Al-^os4lroi" ?ost@

fe" , fn")

?,* ( xr)G;

bt'3t5

holEhlnecnl"..]

?aq+x' +

I lrl -?at

?Ao,

f-?tessu.+ e

Wr*

E\uldnirl( nL oL""u" .u^ lqd) .

")+

?a+

n C41vra"l = o'$/'Z-Y Pw

P"l - Pa

?V = hx Rx Czyv' rs +L)

@ir'ryT?vt

funfic En$"/.Vl^4 : h

\r,9 "P dt'1 dit

L+ rl 4 un\chnr'

(L1/tX 4)Ene-q uvte,,'tr b1 ao+t*d.v q air

1,ro11 c,4t^.t L l,(, A

(o^ wbt)

ru

tp)

+ t,8.1 xff)L+Zsoxq.- + 4 u-aado(,/t"il ^'Ll'tla(V^6u) ?) u'nb'ut

l\^*il Nr iylla'rna) Troy.rlo,s

Ter-pwohrreg""

h = (1.N5,l

h I Kr/rxa^)

d.rq bulb *a^+ o

ar-"p*i* t*P' ,

levd ol l-^*Jritj

w*\51,"-r<- cmto*,?o,ru*aXt- galu-rahn>',

V apar 7r<s'-,.,-<:e- , Pv,t tRzt,I&z Hr@

,rL= / a P*t-!a'Pa1- - 7a

Pw(P*, ((P^r V<d1t-,'rtal./- -- + X rcoV ,aL,*., fls=tgdb p,r

= 0'6e-L* Wlea0,6,12 "A ?,te -

?ot -?*t

tro"tdfl- , .e

3 , (aluado'k r/'t, f;:

RH . LP), )/.A=ner ,,.E - he Lt"iTq

++,"^ .L)

b= ?., P,s

ON loo'/.

B/ ,. ?ot -?ar: --N;- ^ -p.r- ru

Enoofi\ ir ,?r t i lt (. ? ti1.^lf 'X , l, , k{/ a1 a^

Dp t, r,\+-.tu p Rd,/,nt

Spatt fic tl ,: Lcu.,,.e, 2 tt , t"fu q *

@

fxe.rus. ucl+hO) L = 24"e

hr,= 48

v -- 0'864

Pr.,^ad^a v'rzVie

, URH=8o7"

"vuc *^7qa",

Ur-ar+ ,

{,Ay+- = 6"e-

+ --Lsc-) / == 18)n

Air IHV{e 5,4els.ra.

i b -bqts ila Vvnv 4,trsto-as,

1't laab ao( s4^1,',lrohan ( ho.,l wdocz)dn A'mt +f qP"r- Z ai,r uro..laiint

?rotassu.

*tM? <qd<rfu,lc4"^il) "urr*l* 6w)

Yp-t^ovd ko -" l+too$"d 42"1t-

Msn : n^rat- ,;t7o- vol.uh'!'

+n-^eh.;n (xu*7an\) '

" qP^,t-L' +- .A3o- Lvaurwr) -

Oct-f'"h Lno')

he* / e-ool

a:.r pollll-ta,"E

1" "*", Moa

\Asumr oe$4n g,,tdz

t,1 ua -- N1.n

N1 I e * Nlc.n ,= N\ a4

l.aA "* fir't r''€ 'art' rt" 1' ( ( .)

1., '9.. r,.r l, r" r11,1

.l,ti r'r,,'r,,, ttt rn

il\\ t^

I

1n'i

IL

I lrA z

c,A rnyr.t

a

0z

l2

-^ w nl- c-ro "t.) ( Lay.+r

11,(. r,

@

k\r Ha^ili.3 ?l1r,ctssLri

Lt) <aw;ble- Har*.ig

a :'-Frr3-'- V I .hz=\,

Qu = +i rx Q4r-h,) =+14 | 4 Qt,oosxr

a..q-

1z) cuU,g:t3a c

tl t^t+ Zr= X z-

1ileV wol,,g I

LL(tar++r \ b(n,Ltr1u,

'-1P1J,Qe-=

Drl tmliy

mr (ht-hr) Mz:

0)

ce) M ix't 16 ]rt o strao*,s of hn".iA ^ir

t4 "--

ln 1l 142

t., , Pa

Ltz mLL'^ mt

e*J ltl y = Lmr

LB _ 2utLtz mt

LB - -'"Lb

_0

CbL.- LMA',

s"s.,ltv t*dM;gfuxe LMd

T-\,ffi^':s+n se

ba)

-ro@ coot y of A ycz-

- .,atrcrble toaA+ tolo^* tuol

To+A Coot i4 Ckw\ h7/sJ-'

t'A rir,i",r" Lo^d LAb) Ut/t

!ote:, officc r^"A" C+6e" 4 +,55V''9 ,*f

'7r1o1 ao"fi.n t-oo.A i 4 tot".t Cxw)Moi+4t^rz (oa) 2 ta L gs)

6)

Exl:@ Lzb"

GL"..t rq .,,1,,.\C1,,,.''.

5,1i , ,,],i (a|e-r )

@

LX

Qt.

Ene47 bilo-urn-'"arvl no X h t * @t"vt =

t""'4,tt-Xha

&ra) Q*rl o<u;

&t t-t = 4\^* (h,q -h*(tl.*n) Lh) (h,) ta

ntA

lAo\ql",rz Sala.uez-:

rfii4x $ra + M(Y%) (?*nd (ws

1/s

: d oaxn^Lo")

ka'a'^)(t0 8')lA - ,lLLse , f 14. r'ru). "rc" tnritfar)

Q+ru,t -M

ccndihi

ha-lye4r - Xsn

frwL Brs-

v,sts -- E1,t/t '1 )

]j'.1Nt .r''.1 ,s

vt "o$

1A

nva

hep =h4-

flse=At-

@ pr"l-4;M,arLA

Aow.\ttattt' iO' ^"*Aa

oy +oul \,,e lmas' a,t,{10," *1"1v,(NA, ,ry,rys)

Aeti?-he Noe

TnvevhSake. Fa-u co\l',iV{oW' Geu)

AtrdAz e4u/.,p,,^a-t lwo*^V. :,X:ffihno 4oe:

. uydda ro^gn i,Tnsldlahnf "i-,p*.t of 4*^l

qeqgn !n ltrat tte-^ atne.

5,llEEKo4 I

Eeq I

Condihan ',

LX=!Q"L, 0=*y"

- 4 +',,1 . = lz0 KW .

l.z',atbo\toadl*M -3ofeItot*l nois+rr4e I adl

vion = {ra4, Qi^'1

+u-l+;1 LoAe-

9te++ /%3u\".fuv.

& . ln @l Czndt-*.at't"'.", f.,t)'t,l'1 . -ta .: ,/- l2':- u:. =---+# = Kr/6

<- 9A M5e wrt,us [t*1 r"Ja ,

a*+p*+ 4 r-,J,1 4 b,n^t;H.,

Qc W96x(l'qe- ho)

Q4 = ilLLrox (hEtr hr)

4FEb rctb

Mot.SolvMsao A ', Lol = n5'c

0 , .za'/,/DA'

AA - oc"l .1rct. lt.i1A,r ,\' n - nty(d tv-.(': A - 1!\Ll, /;, (

_ ll J _ -.LA - {!xhaa,,F a,t{&A - ft-lutn .r4

l

@)

The o*v,,+ o+ zzDL;y co\l

CA.) a'^d +l^t-heaf^^3

&o = Mro x(hlap -ho)

= L ,Z x(61 - t6) Kh)^,

= 3tb a6yt)

An = Ms,l x (hq -ho)

= e rysx (33 -b) 4/16

^^= loL Ct-bl)

f,,\pa* ol oa LMan)' orQ\&q L+"d )et,tu*l)

,,oL+ a! u*^') &v (nod'"e3")

let Ro.avnr"1 Ve>^t-t talio (HfV)EnetXl KOcouatg V e+th la-fi 6, CEP.V)

F

@

EA/

tra')

-)OA

f ffic.r"t 1*L=

y-1etQs o-'"

56 = la"eLs6 ' !6'eflLv '4= 751.'

-) Lonr

@l0,15 :

( lon' -', a1-saxL

(Snywsu* ou 1+Xtt'ow'-lr'r" d'df ')

I

=7

WM',n Lon, ) Lr^

16x - t onl'T;- t^

3e- toa,-"t: %

ffi L-r 'a -

Z tO _24A3r8

{.r = t, Evh.,, t_y l+,,,,t4

ot/toA/

toA/ <3bb (€,ft)

vla ttsart 4" 611 4*Lrn gqua,"cX 70 1'"

1: = ,r1l: i X (h MA'- h!\

-- ev (ai - t) = '.12.

(yw)

t5%

6)

HRV

EPV

Flh}u^n *Lee,r =hoA- h^,hae - ha

45%^/ ao'/"

* Daa noP {,p ta,^l

d, Dlq b tuD+ a.nar!3 Q frue-"'l t" 7rod,u ct-

cLi"t(eJ 6 "-te,r a6 !fi, Ldn 1e-.,.-pe,ra,*t z e

V61'p 5"e,70e, rc'e I \t'"*+r^- u"*'1

o+ $l^d^ lo*) ,tLe- eqp)pry1&lGL*lle)is nnfez$i c.ra,nt p

.'

@

L^X

tJ-

ataaI = fu ru^"-

(1,'nl+ 1*a)

-alaAT,

aa,^

anra" X

(Ys)

(t*- r* )LoSs

AT - (+;O+ X.cn^a) X Ac(.)

I toip+'> = La (() *

t<J I

Nrel a-+ter61 ( )ae,rnal\Enen1 z;fovpA tu -uaAoot Nr

= La * Ct^cs+r) - to ca)(l<r., r- /nC, I

Ca-x(+^6*u -t"6n;)= AT

^ (4rsuaa tw)- n^f u)+ 1,.*a u))

* ^L%r,^,Lo;

^,"hty

t*'tla )

- @;yto tq,c*^u))

1,t^l46 &** u^ c^xl))x [u.rr.t -hrt,;l qval\

I

'jtJrLJtlt,'., l+t. ya 44't ncrN (Lx3, i4 151Kf ts51 /2u/setr'/

+#"8 1 o,:-,'t \'t ^,'n

'' , '- ,

H\IAL Aletoht I

ltFE6 ,.otb ,

Arrt I " thnt, t'r

+loo.} Et d^rugL( '""

v't ilrar( - ultl"-f

M crte,rlal , te*"yo,ralura faugz-,

Pa-ralle\

Lot

L ens -+l

Slaih^ - w ^tW ,, LH? - crul,,uj [lcottrc., ?a,:p- r q{-,Lt..

il q|e,( - atr '" g n"*rua-)3l e'a'^. pt o , rU''t. &|q ct|;l

Rohlgoro-r,F - aalp+ ; critler' , c-6n dc* sa<-,

Ret lgrra* -Air i px LDfte* EvapoJi*,)

Fl atq - Air 3 Fu*n ap-(110r'e) -aafu,r 3bolls

'>

LotEa'e l

l--) laaI -,""*I

t "'-

'' '-421 tr't' 1

A

I unsu'ql

r+I .c r^l slrwRll-;

ah;ll ef rtal,,s 6t\1 , i.t,ditVl y^:oJer rrt)h,'l

i-

,1, =A Xh xaLCKN') Cr^') f CXI

l\fr/*z ua

('r ) '/. l'i ,

a+A , ALb

AL- aY^-aLbt hl atA \. - \zLa,

ap, _

(+"d4.tu)

0'0Lzt0'l

xo'b6x o'75x o'80

(ond,Lh"on 3 Toron{o,

&e= top Ktli = to n/,

- -P Afua* (r4laasc\t rr. d z) koi'h,46

Eomale Ma.l eO,;dd l4zJeOtd Maie

L0r ',,:g ?4€ (h)

taiuq lood) ,

wa',",tia lwd) .

HU\Aiflh,

_ Pt_lthbzd k!4:4 - @a

Lrlr nl - 5"4-r."9y6,on o.ue4vX<

-ai) l-

hrs)

IDesartd ta = 26"e

Qa = so'l.l--r

dr^= tW lr xul

A-dfis" t]-;- HvAe-?toeasPE+ cl" utVle tl^,o-r+ ,

ffi^r-^-;i-;d;"Ca-se L - c, 'Vdt<t_a,-s L 2_ = ro - k7/s ,

Ee = 3a'e

Q E = 70'1;

t-vta* ll no ra.l t \ ,

udu,a pnet^ow+rle c)ar(-

eoF

C*se 2 ,&.sel

57'8

/:o

awn(Wt)Waro*l("QLgas Uc)

Ah- 5

f.icLsp.

Ela, xslrtu^n4

Efi,uo^rof coplo

dl {^{ cl^ill€1r 1oa itig h,

ke(k u uL * g-r lor^6ass(^

latt'5L, a, i

La rrl

@

Cas 2 Cxe3.

&uu,)

M CAIO

100 loo

Mn\c/)

Doapo:*1 (c) I l' 5\7;;E td,b" - Er,*<, --iWt,*c"e) aL =s

e'5

c0P

\ow tSodc".

baAB,r oJle-r ufuro vs.d aor &'ltuaid;hcoh.rn

Loa

@-^unut txcl.lagw

OtJdAar ---/ tdrrr;r"Jki." Zac

A llpal kla.,ad o(ktt

Fo* hdasR *+a-tnd:*la-r

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15o xE,\ilx4,2x5

lWttt'zK*rl,.Xto

v (ny,9) ,t) ,5 2,aftu*) 4'5xtds

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@-

BL8103

In- Class Activity Nadia Mahbub

Tangin [Pick the date]

BL8103 In –Class Activity/ Student Name: Nadia Mahbub

BL 8103

HOME WORK Nadia Mahbub

BEFORE MID TERM

HOME WORK:

QUESTION: Water appears on the ceiling of a cold room in a house.

i. Why

ii. What is the consequence

iii. How to resolve the problem

ANSWER:

i. Moisture problem

ii. It is the perfect passage of radon gas; cause the mould problem.

iii. Sealing the sump pump; maintain the cold room temperature 18° C with RH 30%.

QUESTION: What is fan coil unit?

Fan coil unit (FCU) is a simple device consisting of a heating or cooling coil and fan. It is part of an HVAC system found in residential, commercial, and industrial buildings. QUESTION: AIR SIDE EQUIPMENT

ANSWER: AIR SIDE EQUIPMENT

Air conditioning in hotels and apartments in special process, cooling at factories or at a broad

spectrum of options for conditioning interior spaces, including temperature and humidity

control, deodorization, and air purification; air side equipment is required. Some famous

brands:

DAIKIN ADVANTAGE

Shopping Center

Daikin’s air side products provide total air comfort solutions to create a pleasant environment

for those shopping with their families and meeting friends.

Clean Room

A variety of options are offered to meet demands for the special air environments required at

healthcare and research facilities, including those demands for temperature, humidity, and air

purification.

Retail Store

With ceiling-suspended installations, the need for equipment rooms is eliminated, and the floor

area can be more effectively.

Cutaway Drawing of Air Handling Unit

SOURCE:

http://www.daikin.com/products/ac/lineup/ahu_fcu/index.html

HOME WORK: 1

Figure out how a window type air conditioner with heat pump work.

ANSWER: The evaporator acts like a cooling coil in summer time; air flows over that gets cooled and supplied in the room with cooling effect. The heat absorbed from the room by the air is driven to exterior through condenser; that is how a normal window type air conditioner works.

In extreme weather conditions; winters are very cold and summers are too hot. In such climates, window type air conditioner can be used for cooling purpose in summer time and heating purpose in winter time. When a window type air conditioner is used as heater in winter time, called a heat pump.

Window type AC can be used as the Heat Pump

A window type air conditioner has four important parts as heat exchanger; apart from compressor and expansion valve other two are - condenser and the evaporator. These two parts are designed with number of turns with copper tubing and covered with fins to increase the heat transfer rate. Evaporator is located inside the room and condenser is located outside the room into the exposed external atmosphere.

Summer time evaporator acts as the cooling coil; air flows over it and gets cooled then supplied to the room with cooling effect; for using the window type AC as heat pump in winter time we need to change the direction of the flow the refrigerant by changing the position of the valve. Or this opposite position, condenser and the evaporator also gets reversed; condenser becomes evaporator and evaporator becomes condenser .The machine then turns to heat pump. Here, condenser is located inside of the room and evaporator being located outside of the room. Refrigerant inside the evaporator, as located outside absorbs heat from the atmosphere. Later on it penetrates inside the room through condenser. That is how, the same coil producing cooling effect in the summer time and heating effect in winter time.Reference and Image Source

1) Book: Basic Refrigeration and Air Conditioning by P. N. Ananthanarayan, Tata Mc-Graw Hill Publishing Company Limited, Second Edition, page no. 214.

http://www.brighthubengineering.com/hvac/55316-window-air-conditioner-used-as-the-heat-pump/

HOME WORK: 2

ANSWER:

Wall Mounted Split Type (Cooling Only)

42/38KCEG09A

Wall Mounted Split Type (Cooling Only)

·1 HP

·9,000 BTU / h

·Energy Label Grade 1

42/38KCEG12A

Wall Mounted Split Type (Cooling Only)

·1.5 HP

·11,800 BTU / h

·Energy Label Grade 1

42/38KCEG18A

Wall Mounted Split Type (Cooling Only)

·2 HP

·18,000 BTU / h

·Energy Label Grade 1

42/38KCEG22A

Wall Mounted Split Type (Cooling Only)

·2.5 HP

·21,500 BTU / h

·Energy Label Grade 1

42/38KCEG24A

Wall Mounted Split Type (Cooling Only)

·3 HP

·23,500 BTU / h

·Energy Label Grade 1

Click to view Other Products

Wall Mounted Split Type (Slim Type)

42/38KCEG07LA-1

Wall Mounted Split Type (Slim Type)

•Cooling only

•3/4 HP

•7,200 BTU / h

•Energy Label Grade 1

42/38KCEG09LA-1

Wall Mounted Split Type (Slim Type)

•Cooling only

•1 HP

•9,200 BTU / h

•Energy Label Grade 1

42/38KCEG12LA-1

Wall Mounted Split Type (Slim Type)

•Cooling only

•1.5 HP

•11,900 BTU / h

•Energy Label Grade 1

Click to view Other Products

Wall Mounted Split Type (Heat Pump)

42/38QCEF28A

Wall Mounted Split Type (Heat Pump)

·3.5 HP

·Cooling: 27,500 BTU / h

·Heating: 28,000 BTU / h

42/38QCEC27A

Wall Mounted Split Type (Heat Pump)

·3.5 HP

·Cooling: 27,000 BTU / h

·Heating: 28,600 BTU / h

Click to view Other Products

Inverter Split Type (Heat Pump)

42/38QCEG09V

Inverter Split Type (Heat Pump)

·1 HP

·Cooling: 8,800 BTU / h

·Heating: 9,800 BTU / h

·Energy Label Grade 1

42/38QCEG12V

Inverter Split Type (Heat Pump)

·1.5 HP

·Cooling: 11,800 BTU / h

·Heating: 12,800 BTU / h

·Energy Label Grade 1

42/38QCEG18V

Inverter Split Type (Heat Pump)

·2 HP

·Cooling: 17,300 BTU / h

·Heating: 18,300 BTU / h

·Energy Label Grade 1

42/38QCEG22V

Inverter Split Type (Heat Pump)

·2.5 HP

·Cooling: 20,800 BTU / h

·Heating: 21,800 BTU / h

·Energy Label Grade 1

Click to view Other Products

Wall Mounted Multi Split Type (Cooling Only)

42KCEGM09A x 2 / 38KCEGM18A

Wall Mounted Multi Split Type (Cooling Only)

·One-Two Split Type

·One Unit: 9,000 BTU / h

·Two Units: 9,000 + 9,000 BTU / h

42KCEGM09A + 42KCEGM12A / 38KCEGM21A

Wall Mounted Multi Split Type (Cooling Only)

GG·One-Two Split Type

·One Unit: 9,000 / 12,000 BTU / h

·Two Units: 9,000 + 12,000 BTU / h

Click to view Other Products

Multi Split Inverter Split Type (Cooling Only)

42KCEGM09V

Multi Split Inverter Split Type (Cooling Only)

·1 HP

·9,200 BTU / h

·Energy Label Grade 1

42KCEGM12V

Multi Split Inverter Split Type (Cooling Only)

·1.5 HP

·11,800 BTU / h

·Energy Label Grade 1

42KCEGM18V

Multi Split Inverter Split Type (Cooling Only)

·2 HP

·18,300 BTU / h

·Energy Label Grade 1

38KCEGM18V

Multi Split Inverter Split Type (Cooling Only)

·Two Split Type

·21,500 (9,000 - 22,500) BTU / h

38KCEGM21V

Multi Split Inverter Split Type (Cooling Only)

·Three Split Type

·25,900 (16,900 - 25,900) BTU / h

38KCEGM27V

Multi Split Inverter Split Type (Cooling Only)

·Three Split Type

·32,100 (22,500 - 32,100) BTU / h

38KCEGM36V

Multi Split Inverter Split Type (Cooling Only)

·Four Split Type

·32,100 (22,500 - 32,100) BTU / h

Multi Split Inverter Split Type (Heat Pump)

42QCEGM09V

Multi Split Inverter Split Type (Heat Pump)

·1 HP

·Cooling: 9,200 BTU / h

·Heating: 10,000 BTU / h

·Energy Label Grade 1

42QCEGM12V

Multi Split Inverter Split Type (Heat Pump)

·1.5 HP

·Cooling: 11,800 BTU / h

·Heating: 12,800 BTU / h

·Energy Label Grade 1

42QCEGM18V

Multi Split Inverter Split Type (Heat Pump)

·2 HP

·Cooling: 18,300 BTU / h

·Heating: 18,400 BTU / h

·Energy Label Grade 1

38QCEGM18V

Multi Split Inverter Split Type (Heat Pump)

·Two Split Type

·Cooling: 21,500 (9,000 - 22,500) BTU / h

·Heating: 22,700 (9,500 - 23,900) BTU / h

38QCEGM21V

Multi Split Inverter Split Type (Heat Pump)

·Three Split Type

·Cooling: 25,900 (16,900 - 25,900) BTU / h

·Heating: 27,000 (17,500 - 27,000) BTU / h

38QCEGM27V

Multi Split Inverter Split Type (Heat Pump)

·Three Split Type

·Cooling: 32,100 (22,500 - 32,100) BTU / h

·Heating: 35,800 (25,100 - 35,800) BTU / h

38QCEGM36V

Multi Split Inverter Split Type (Heat Pump)

·Four Split Type

·Cooling: 45,700 (32,000 - 47,100) BTU / h

·Heating: 47,400 (33,200 - 49,100) BTU / h

Wall Mounted Split Type (Cooling Only / For Sale In Macau Only)

42/38KCEL09M

Wall Mounted Split Type (Cooling Only / For Sale In Macau Only)

·1 HP

·9,000 BTU / h

42/38KCEL12M

Wall Mounted Split Type (Cooling Only / For Sale In Macau Only)

·1.5 HP

·12,000 BTU / h

42/38KCEL18M

Wall Mounted Split Type (Cooling Only / For Sale In Macau Only)

·2 HP

·17,500 BTU / h

42/38KCEL22M

Wall Mounted Split Type (Cooling Only / For Sale In Macau Only)

·2.5 HP

·22,000 BTU / h

Source: http://www.century-carrier.com/english/enTypeListWeb.do?speciesId=24

HOME WORK: 3

1. QUESTION: Definition of

COP

SEER

COP means Coefficient of Performance.

Ratio of work or useful output to the amount of work or energy input, used generally as

a measure of the energy-efficiency of air conditioners, space heaters and other cooling and

heating devices. COP equals heat delivered (output) in British thermal units (Btu) per hour

divided by the heat equivalent of the electric energy input (one watt = 3.413 Btu/hour) or,

alternatively, energy efficiency ratio divided by 3.413. Higher the COP; higher gets

the efficiency of the equipment.

Source: http://www.businessdictionary.com/definition/coefficient-of-performance-COP.html

SEER

SEER means Seasonal Energy Efficiency Ratio. It is the measure of efficiency by which the cooling process of air conditioners and heat pumps is rated. The higher the SEER number, the greater will be the efficiency and therefore the greater the energy savings.

Source: https://www.google.ca/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-

8#q=what+is+SEER

2. Type of compressor used in HVAC equipment according power range, efficiency, cost,

acceptability- explain.

http://www.airconditioning-systems.com/air-

conditioner-compressor.html

Compressor compresses the vapor into a smaller volume at high temperature; the external-drive compressor contains a crankshaft inside which drives by a pulley and a belt system. Alternately, an electric motor can also be used to drive the compressor directly.

There are basically 5 types of compressor commonly used in HVAC system:

Reciprocating Scroll Screw Rotary Centrifugal Centrifugal

Reciprocating Air Conditioner Compressor

Reciprocating compressor use a piston to compress the refrigerant driven by a crankshaft straight line back and forth. The rotary motion is achieved through electric motor; its construction is quite similar to an automobile engine.

Piston in the compressor moves up and down inside a cylinder and vapor from suction line moves through the intake valve as the piston moves downward; as piston moves upward-compresses the vapor refrigerant, which pushed afterward through exhaust valve into the condenser.

Compressor may consists of more than one cylinder; known as multi cylinder compressor. Common ones: two-cylinder, four-cylinder and eight-cylinder compressors.

Scroll

Scroll compressor consists of one fixed scroll that remains stationary and another scroll one moves or rotates through the use of swing link. In this situation; pockets of refrigerant between two scrolls slowly pushed, to cause reduction of the volume of gas. Lately; discharged by the center port to the condenser.

Advantage of this type of compressor; fewer moving parts and less torque variation compared with reciprocating compressor. This leads to a smooth and quiet operation. It is known as scroll pump or scroll vacuum pump as well.

Screw

Screw compressors have a pair of helical rotors; traps and compresses the gas as the rotors revolve in the cylinder. In HVAC system, generally used the 20 ton capacity and above. There are work divisions; male rotor - female rotor and are built inside the cylinder. Low pressure refrigerant enters through one end of compressor and resultant high pressure refrigerant than discharged into the opposite end to condenser.

Rotary

Rotary compressor are divided in two types; one type has blades or vanes which rotate with the shaft and other type with blade which remains stationary, become part of the compressor housing assembly. In both types, from the suction line vapor is drawn into cylinder by the suction port. When blades rotate; trapped vapor into the space is compressed in high pressure gas then discharged to the condenser by the exhaust port. Here, in rotary the number of blades can vary within two to eight for a single system.

Centrifugal

Centrifugal compressor generally used for large capacity refrigerating system; here the vapor moves in a circular motion known as centrifugal force. Impeller; a disk with radial blades spins rapidly inside system and that cause gas gain velocity. The diffuser converts present energy to pressure energy and discharged into condenser. The pumping efficiency increases with the speed. This type of compressors designed to rotate in high speed.

Advantage of centrifugal compressor without: valves, pistons or cylinders. The main wearing parts need attention; main bearings.

Source: http://www.airconditioning-systems.com/air-conditioner-compressor.html

HOME WORK: 4

Refrigeration based heat recovery unit diagram.

ANSWER:

Heat recovery system diagram Components:

1 compressor, connected to

main tank, with adapter

1 compressor, pre-heat tank with

adapter

1 compressor, pre-heat tank,

plumbed

2 compressors & pre-heat

tank with adapter

1 compressor, connected to main

tank, plumbed

2 compressors & pre-heat tank,

plumbed

The diagram below shows a standard refrigeration system and how Hot Spot heat recovery

equipment (Heat Recovery Unit or HRU) is connected. The refrigeration cycle will be applicable

to cooler, freezer, ice maker or air conditioner.

Note:

Red dots represent hot high pressure refrigerant gas.

Solid red represents warm high-pressure refrigerant liquid.

Blue dots represent warm low pressure refrigerant gas

Solid blue represents cold low pressure refrigerant liquid.

Hot Spot connects at the hottest point, next to the compressor discharge.

Source:

http://www.hotspotenergy.com/heat-recovery-system-diagrams/

HOME WORK: 5

How to create an ERV/ HRV in a home with fan coil unit (FCU) ?

ANSWER:

Designing a ERV/HRV for multi-unit high rise building ; it will have high operating times, and should

therefore be energy efficient. To get manufacturers to take on new approaches, applied research

was carried out.

MAJOR CONSIDERATIONS:

Higher wind and stack pressures in high rise building

The value of space in high rise building is relatively high, so that it should have a minimum

footprint.

Provide base ventilation for each unit; it will have high operating times and energy efficient.

The major challenges is to select air-moving devices for ventilation flows that work

satisfactorily in the high-rise environment.

The proposed ventilating system is similar to the vertical fan-coil type, usually composed of

a fan for circulation of air,

a heating and/or cooling coil for space conditioning,

air filter, and associated controls installed in a cabinet

a ducted supply air system

a heat recovery heat exchanger and provision for movement of exhaust air and outdoor

supply air.

Source: www.polytechnicscanada.ca

Two basic strategies can be followed; one involved designing the unit so that both the ventilation

fans and circulation fan could be run from a single drive motor and that will allow use of more

sophisticated drive. An ECM (electronically commutated motor can save the energy and reduce

overall cost. The second strategy is using an individual motor for each fan to improve flexibility.

Source: www.polytechnicscanada.ca

Prototype ventilation modules and the circulation module will be a possibility for achieving the goal

for the high rise rsidential units individually.

From my own understanding and following the class note ; provided diargram will

work as well for the high rise rsidential units individually.

HOME WORK: 6

Water - Dynamic and Kinematic Viscosity

Viscosity of water at temperatures ranging 0 - 100 oC (32 - 212

oF) -

in Imperial and SI Units

Temperature

- t -

(oF)

Dynamic Viscosity

- µ -

(lbf s/ft2) x 10

-5

Kinematic Viscosity

- ν -

(ft2/s) x 10

-5

32 3.732 1.924

40 3.228 1.664

50 2.730 1.407

60 2.344 1.210

70 2.034 1.052

80 1.791 0.926

Temperature

- t -

(oF)

Dynamic Viscosity

- µ -

(lbf s/ft2) x 10

-5

Kinematic Viscosity

- ν -

(ft2/s) x 10

-5

90 1.580 0.823

100 1.423 0.738

120 1.164 0.607

140 0.974 0.511

160 0.832 0.439

180 0.721 0.383

200 0.634 0.339

212 0.589 0.317

Dynamic (Absolute) and Kinematic Viscosity of Water - SI Units

Temperature

- t -

(oC)

Dynamic Viscosity

- µ -

(Pa s, N s/m2) x 10

-3

Kinematic Viscosity

- ν -

(m2/s) x 10

-6

0 1.787 1.787

5 1.519 1.519

10 1.307 1.307

20 1.002 1.004

30 0.798 0.801

40 0.653 0.658

50 0.547 0.553

60 0.467 0.475

Temperature

- t -

(oC)

Dynamic Viscosity

- µ -

(Pa s, N s/m2) x 10

-3

Kinematic Viscosity

- ν -

(m2/s) x 10

-6

70 0.404 0.413

80 0.355 0.365

90 0.315 0.326

100 0.282 0.29

SOURCE:

http://www.engineeringtoolbox.com/water-dynamic-kinematic-viscosity-d_596.html

HOME WORK: 7

Create a list of absolute roughness.

ABSOLUTE ROUGHNESS OF PIPE MATERIAL

Absolute roughness is a measure of the surface roughness of a material which a fluid may flow over. Absolute roughness is important when calculating pressure drop particularly in the turbulent flow regime. This article provides some typical absolute roughness values for common conduit materials.

The roughness of pipes, ducts and channels impacts on the flow rates andpressure losses for fluids passing through them. This roughness is generally expressed in units of length as the absolute roughness of the conduit material. For use in calculating the friction factor the absolute roughness is divided by the pipe diameter resulting in the relative roughness.

This table contains typical values of absolute roughness for common construction materials.

Material Roughness (mm)

Drawn Tubing, Glass, Plastic 0.0015-0.01

Drawn Brass, Copper, Stainless Steel (New) >0.0015-0.01

Flexible Rubber Tubing - Smooth 0.006-0.07

Flexible Rubber Tubing - Wire Reinforced 0.3-4

Stainless Steel 0.03

Wrought Iron (New) 0.045

Carbon Steel (New) 0.02-0.05

Carbon Steel (Slightly Corroded) 0.05-0.15

Carbon Steel (Moderately Corroded) 0.15-1

Carbon Steel (Badly Corroded) 1-3

Carbon Steel (Cement-lined) 1.5

Asphalted Cast Iron 0.1-1

Cast Iron (new) 0.25

Cast Iron (old, sandblasted) 1

Sheet Metal Ducts (with smooth joints) 0.02-0.1

Galvanized Iron 0.025-0.15

Wood Stave 0.18-0.91

Wood Stave, used 0.25-1

Smooth Cement 0.5

Concrete – Very Smooth 0.025-0.2

Concrete – Fine (Floated, Brushed) 0.2-0.8

Concrete – Rough, Form Marks 0.8-3

Riveted Steel 0.91-9.1

Water Mains with Tuberculations 1.2

Brickwork, Mature Foul Sewers 3