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অষ্টম- অধ্যায়
wngvqbI kxZvZc wbqš¿Y
cøv‡›UiK¨vcvwmwU m¤ú‡K©
aviYv
আবু মমাহাম্মদ আতিকুল্যা
ইন্সট্রাক্টর (মেক্) আর এতি
ঢাকাপতল্টেকতিকPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
কাতরগতরতিক্ষাঅতধ্দপ্তটররিত্ত্বাবধ্াটিপতরচাতল্ি
মেিবুক ল্াইভ ক্লাটি স্বাগি
OnlineTVET.com
Facebook.com/onlinetvet
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
আবু মমাহাম্মদ আতিকুল্যা
ইন্সট্রাক্টর(মেক্) আর এতি
ঢাকা পতল্টেকতিক ইন্সটিটিউে,
মিজগাাঁ ও, ঢাকা - ১২০৮
atiqullahrac@gmail.com
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
অষ্টম- অধ্যায়
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
“ক্লািমিটেআমরাযাতিখটবা”
১। আর এতিপ্ল্যান্ট কযাপাতিটিিম্পটকে
২।কুতল্িং মল্াটের তবতভন্ন কটম্পািযান্টি িমূহ িম্পটকে
৩।প্ল্যান্ট কযাপাতিটিটি মিেটি েযাক্টটরর প্রটয়াজিতয়িা
িম্পটকে
৪। আর এতি প্ল্যান্ট কযাপাতিটি কযাল্কুটল্িি িম্পটকে
৫।তহউতমতেতেটকিিপদ্ধতিটিপ্ল্যাটন্টরতহেমল্ােিমূহ
৬।মমােকুতল্িংমল্ােিম্পতকে ি িমিযাবল্তবা অিংকPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
“আজটকর পাঠ”
8.1 List the Components of Total
Cooling Load for Air Conditioning
8.2 State the Necessity of Safety
Factor to Calculate the Plant Capacity
8.3 DiscribetheProcedureofCalculation
ofRACPlantCapacity
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
8.4 Describe the Heat Load
Estimation for Humidification Plant
8.5 Solve Problems Related
to Total Cooling Load of
Air Conditioning Plant
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
“আজটকরপাঠ”
8.1Gwmcøv‡›Ui†gvUKzwjs†jv‡WiK‡¤úv‡b›Uি
mg~n
8.2cøv›UK¨vcvwmwU‡Z†mdwUd¨v±‡ii
cÖ‡qvRbxqZv
8.3AviGwmcøv‡›Uicøv›UK¨vcvwmwU
K¨vjKz‡jkb
8.4wnDwgwWwd‡Kkbcøv‡›UiwnU†jvWAR©b
c×wZPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
ভূ তমকা (Introduction)
মরতিজাটরিিঅযান্ডএয়ারকতন্ডিতিিংপ্ল্যাটন্টর
ক্ষমিা
বাকযাপাতিটিকটরাল্একটিঅিতবগুরুত্বপূর্ে
তবেয়।
মযটহিু তহমায়িওিতিািপতিয়তিিপ্ল্যান্টতবতভন্ন
ধ্রটর্রউপািংটিরিমম্বটয়গঠিি,িাইএরক্ষমিাও
তবতভন্নধ্রটর্রহয়।এমক্ষটেকুতল্িংএরপািাপাতিPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
আর এতিপ্ল্যান্টকযাপাতিটি বল্টি “মকাটিা
তহমায়র্ প্ল্যান্ট িুষ্ঠু ,িুন্দর ও তিখুিভাটব চল্ার
জিযময তহিাব-তিকািকটর ইকুইপটমন্টবা
যিািংি তিবোচি করা হয় িাটকই” প্ল্যান্ট
কযাপাতিটি বটল্।
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
8.1List theComponentsof Total Cooling Loadfor AirConditioning
Gwm cøv‡›Ui†gvUKzwjs †jv‡WiK‡¤úv‡b›Ub
mg~n
‡gvUKzwjs†jvW(TotalCoolingLoad)
†mdwUd¨v±imnwngvqbh‡š¿iÿgZv
wbY©‡q
†Kv‡bvGwmiæ‡gi‡gvUKzwjs†jvWwbY©q
Ki‡Z
wb‡¤œv³Dr‡miZvcGK‡Î†hvM(+)Ki‡Zn‡ePresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
১|AeKvVv‡gvigva¨‡gmÂvwjZZvc
(Building Structure)
২|mvgMÖxiZvc(Products
Load)
৩|wccj†jvW(People Load)
৪|evZvmcwieZ©bRwbZZvc
(Air Change Load)PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
উপটরাক্ত উৎটির িাটপর িমতষ্ট
তির্েটয়র পর এর উপর 5%হটি
10% মিেটি েযাক্টর মযাগ করটি
হয়। িকল্ িথ্য িঠিকভাটব
তির্েয় করা িা মগটল্ মিেটি
েযাক্টর িাধ্ারর্ি 10% ধ্রটি হটব
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
তহমায়িযিযাটিতপকটল্ােআওয়াটর
এবিংপূর্ে িতিল্তকরর্ক্ষমিায়চল্টি
পাটরমিজিযমিেটিেযাক্টরমযাগ
কটর
মযপতরমািিাপপাওয়াযায়,িাটক24
ঘন্টাদ্বারাগুর্র্(×)কটরতহমায়িযটির
দদতিকচাল্িিময়দ্বারাভাগ(÷)করটল্PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
myZivswngvqbh‡š¿iÿgZv=
‡gvUKzwjs†jvW(Kw)×24 N›Uv
CwáZ/কাতিিwngvq‡bimgq(N›Uv)
A_ev,
UbAe†iwd«Rv‡ikb(TR)wngvqbh‡š¿রÿgZv=
‡gvUKzwjs†jvW(wK‡jvIqvU)
3.516 wK‡jvIqvU/UbPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
1-িাভে ার9-ট্রান্সতমিি
মল্াে
4-ল্াইটিিং মল্াে
2-তপপল্ মল্াে
3-ইন্টারিাল্মল্াে
8-মদওয়াল্10-মিাল্ার
মল্াে
6-দরজা
7-জািাল্া
5-ইিতেটেিি মল্াে
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
কুতল্িং মল্াটের কটম্পািযান্টি িমূহ
কুতল্িং মল্াটেরকটম্পািযান্টিিমূহ
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
কুতল্িং মল্াটেরকটম্পািযান্টিিমূহ
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
মোোল্ কুতল্িংমল্াে/মমাে কুতল্িং মল্াে
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
মোোল্ কুতল্িংমল্াে/মমাে কুতল্িংমল্াে
বাতহটর অতজে ি িাপ
তভিটর অতজে ি িাপ
মমােকুতল্িং মল্াে
8.2 State the Necessity of Safety Factor
to Calculate the Plant Capacity
cøv›UK¨vcvwmwU‡Z†mdwUd¨v±‡ii
cÖ‡qvRbxqZv
wewfbœai‡biDrm†_‡KAwR©ZZv‡ci
mgwóB
†gvUKzwjs†jvW(Total Cooling
Load)
mvaviYZ†gvUKzwjs†jv‡Wimv‡_Avc`Kvjxb
mg‡qiRb¨5% ‡_‡K10% ‡hvMKivnqPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
myôfv‡ecwiPvjbviRb¨†mdwUd¨v±i
Aek¨Bai‡Zn‡e
wcK †jvW AvIqv‡i cøv›U cwiPvjbv Ki‡Z
†mdwUd¨v±i we‡klf‚wgKvcvjb কটর
†mdwUd¨v±ibvai‡jwcKAvIqv‡icøv›U
Pj‡ebv| mwVKgvÎvq Kvh©Kwi †c‡Z n‡j
†gvU†jv‡WiDci10%†mdwUd¨v±iai‡Z n‡e
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
cøv›U K¨vcvwmwU‡Z †mdwU d¨v±‡ii
cÖ‡qvRbxqZv
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
8.3 DescribetheProcedureofCalculationofRefrigeration
And Air Conditioning Plant Capacity AviGwm
cøv‡›Uicøv›UK¨vcvwmwUK¨vjKz‡jkb
AviGwmcøv‡›Uicøv›UK¨vcvwmwU
K¨vjKz‡jkb
wb‡¤œv³fv‡eKivnqt-
1|cÖ_gcøv‡›Ui†gvUKzwjs†jvWwbY©qKi‡Z
n‡e
2|†gvUKywjs†jv‡Wi10%†mdwUd¨v±i
wn‡m‡e
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
AviGwmcøv‡›Uicøv›UK¨vcvwmwUK¨vjKz‡jkb
cÖ_‡g
cÖ‡qvRbHeat Transmission c×wZmg~n†ei
Kiv
1.Pvi†`qv‡jigva¨‡g†jvW(WallLoad)
2.Qv‡`i gva¨‡g†jvW(RoofLoad)
3.‡g‡Sigva¨‡g†jvW(FloorLoad)
4.`iRvIRvbvjvigva¨‡g†jvW
(Door/Windows)PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
৬.k¦vm-cÖk¦vmRwbZ†jvW
7.AbycÖweóRwbZevZv‡mi†jvW
8.kÖwgK†jvW/gvby‡li†`nn‡ZwbM©Z
Zvc
9.ˆe`y¨wZKevwZi†jvW(LightingLoad)
10.†gvU‡iiwnU†jvW(MotorLoad)
11.Avbylvw½K/mvwcø‡g›UvwievAb¨vb¨
†jvW
(SuppltymentaryLoad)
12.evZvmcwieZ©bRwbZ†jvWPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
13.wewKiYRwbZ†jvW(RadiationLoad)
KvVv‡gvigva¨‡gZvcmÂvjbGim~În‡jvt-
Q =A. U. TD
Q = Watt GK‡K†gvUcwievwnZZv‡cicwigvb
A= KvVv‡gvi†ÿÎdjeM©GK‡K
U = W/m2°K GK‡KZvccwievwnZvi¸Yv¼
TD = ‡Kjwfb&GK‡KwfZiIevB‡iievZv‡mi
ZvcgvÎviwe‡qvMdjZvcgvÎvicv_©K¨
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
wewKiYRwbZZvcmÂvj‡bZv‡cicwigvb,
QR = Kv‡Pi†ÿÎdjwewKiYRwbZZv‡ci
¸Yv¼D.S েযাক্টর
evqyPjbevAbycÖ‡ek†jvW(Ventilation
or Infiltration Load),
Q = wbqwš¿Ziæ‡giRb¨cÖ‡qvRbxqgy³
evZv‡mi
cwigvb(L/S)cÖwZwjUvievZv‡miRb¨
ewa©ZZv‡cicwigvb(Kj/L)PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
A_ev,
Q =
K‡ÿAe¯’vbiZRbmsL¨v0.00354m3/sec/Rb
gy³evZv‡miAv‡cwÿKAvqZb(m3/kg)
 ∆𝐡
[  ∆𝐡 = (T2-T1) িাপমাোরcv_©K¨]
wccj†jvW/Rbmgv‡ek†jvWt
Q = K‡ÿKg©iZRbmsL¨vIqvUGK‡K
cÖZ¨‡Kikixin‡ZwbM©ZZv‡cicwigvb
cÖWv±†jvW,Q =
m.c.TD
24  3600
wK‡jvIqvU
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
wPwjs†jvW,QC =
m.c.TD
wPwjsmgq(‡m‡KÛ)wPwjs†iUd¨v±i
wPwjs†iUd¨v±i=
𝟏
𝟏.𝟓
= 𝟎. 𝟔𝟕
m¤ú~iK†jvW(Supplementtary Load)
1.jvBU(Lighting Load)
2.†gvUi(Motor Load)
3.Ab¨vb¨ cøvM †jvW(ছটকেমল্াে)PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
Ae‡k‡l,CwáZevKvw•LZkxZjwngvqb
h‡š¿iÿgZvwbiƒcb
myZivswngvqbh‡š¿iÿgZv(Kw)=
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
8.4DiscribetheHeatLoadEstimationforHumidificationPlant
তহউতমতেতেটকিিপ্ল্যাটন্টরতহেমল্ােঅজে িপদ্ধতি
WªvBevj¦ZvcgvÎvicwieZ©b(DBT)bv
কটর
Rjxqev®úhy³(Add)Kivic×wZ‡KAv`ª©KiY
ev
wnDwgwWwd‡Kkb(Humidification)e‡j
wnDwgwWwd‡Kkb`yBfv‡eKivnq,†hgbt-PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
2| c‡ivÿev AcÖZ¨ÿ c×wZ(Indirect Method)
1| cÖZ¨ÿc×wZ(Direct Method) t
Gai‡Yic×wZ‡ZGqviKwÛkwbs¯’v‡bm¤úyb©iæ‡c
myÿèvwZm~ÿè
KYviAvKv‡i(Atomised State)cvwb†¯úªKivnq
GUvLye†ewkKvh©Kibq
2|c‡ivÿevAcÖZ¨ÿc×wZ(Indirect Method)t
Gc×wZ‡ZGqviIqvkv‡iigva¨‡gGqviKwÛkwbs
cøv‡›UevZv‡mcvwbcÖ‡ekKiv‡bvievmieiv‡nie¨e¯’v
_v‡KPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
𝛟 𝟐
𝛟 𝟏
W2
W1
H2
2
1
H1
wnDwgwWwd‡Kkb cøv‡›Ui wnU †jvW
AR©b c×wZ
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
কুতল্িং অযান্ড তহউতমতেতেটকিিি
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
তহটিিং অযান্ড তহউতমতেতেটকিিি
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
এয়ারকতন্ডিতিিংকটক্ষরআদ্রিে াবৃতদ্ধকরর্
মকৌিল্
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
এয়ারকতন্ডিতিিংকটক্ষরআদ্রিে াবৃতদ্ধকরর্
মকৌিল্
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
এয়ারকতন্ডিতিিংকটক্ষরআদ্রিে াবৃতদ্ধকরর্
মকৌিল্
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
AsKt-6m5m4m mvB‡RiGwmiæ‡giRb¨KZwK.IqvU
†gwkbcÖ‡qvRb|hw`BDwbUˆ`wbK16N›UvPvjyivL‡Znq
Z_¨vw`t1|†`Iqv‡jiRb¨U= 0.346 W/m2° 𝐊,TD = 15° 𝐊,
2|Qv‡`iRb¨U = 0.383 W/m2 ° 𝐊,TD = 18° 𝐊,
3|‡g‡SiRb¨U = 0.26 W/m2 ° 𝐊,TD = 12° 𝐊,
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
4|Ae¯’vbiZ†jv‡KimsL¨v4 Rb|
kixi†_‡KwbM©ZZvc=0.211KW,
Bbwdj‡Uªkb†iU=8wjUvi/‡m‡KÛ,
evZvmcwieZ©b েযাক্টর=0.0186 kj/L,
40 W Gi2wU evwZI40w Gi1wU†gvUie¨eüZnq
GKwUKv‡Vi`iRv2m  1.2m, U = 0.587 W/m2°k
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
mgvavbt-`iRvi†ÿÎdj = (2m  1.2m) = 2.4m2
Pvi†`qv‡ji†ÿÎdj=2{(64) + (54)} – 2.4m2 = 85.6m2
‡g‡Si‡ÿÎdj = (65)= 30m2
ছাটদর ‡ÿÎdj= (65) = 30m2
1।কাঠাটমারমাধ্যটমপতরবাতহিিাপ, Q =A.U.TD
মদয়াল্দ্বারা=(85.60.34615°) = 𝟒𝟒𝟒. 𝟐𝟔 𝐊𝐰
`iRvØviv=(2.40.5815)=21.13K𝐰
Qv`Øviv=(300.38318)=206.82 𝐊𝐰
‡gvU= 768.33 K𝐰
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
২।Bbwdj‡Uªkb†jvW=(80.186)=1.488Kw
৩।তপপল্মল্াে =(40.211)=0.844Kw
৪।িাতপ্ল্টমন্টাতরমল্াে=(402+401)
=120watt =
120
𝟏𝟎𝟎𝟎
=0.12 Kwatt
মমােতিগেিিাপ,QT =(768.33+1.488+0.844+0.12)
=770.78Kw
10%‡mdwUd¨v±ia‡i†gvUwbM©ZZvc(770.78+77.07)=847.85Kw
∴wngvqbh‡š¿i ÿgZv=(847.85
𝟐𝟒
𝟏𝟔
)
wngvqbh‡š¿iÿgZv=1271.77 wK‡jvIqvU(Kw)Ans
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
তবতভন্ন মক্ষটে বযবহৃিেটির তহিাব
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
evwoiKvR(Home Work)
৮ম-অধ্যাটয়রcÖkœvejx
১|Gwmcøv‡›Ui†gvUKzwjs†jv‡WiK‡¤úv‡b›Uি
mg~nMy‡jv†jL?
২| cøv›UK¨vcvwmwU‡Z†mdwUd¨v±‡ii
cÖ‡qvRbxqZv†jL?
৩|AviGwmcøv‡›Uicøv›UK¨vcvwmwU
K¨vjKz‡jkbc×wZeY©bvKi?
৪|wnDwgwWwd‡Kkbcøv‡›UiwnU†jvWAR©b
c×wZ‡jL?
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
5
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
PresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
ধ্িযবাদPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
অষ্টম- অধ্যায়wngvqbI kxZvZc wbqš¿Y
cøv‡›UiK¨vcvwmwU m¤ú‡K©
aviYv
আবু মমাহাম্মদ আতিকুল্যা
ইন্সট্রাক্টর (মেক্) আর এতি
ঢাকাপতল্টেকতিকPresentedBy:A.M.ATIQULLAH,INSTRUCTOR(Tech)RACDHAKAPOLYTECHNICINSTITUTE,TEJGAON,Dhaka
Chapter 8 Understand the capacity of a refrigeration and air conditioning plant

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