chiller vs vrf 12345
TRANSCRIPT
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Chiller vs VRF system
LG Electronics Inc.LGEHQ CAC Team
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1. Design Comarison
VRF is very simplifed rerigerant piping system. More exible than water pVRF is very simplifed rerigerant piping system. More exible than water pi
Chiller
MULTI V Plus (VRF)Chiller system
Otdoor nit !"ir#cooled type$
Indoor nit
%e&riger"nt piping
Chiller
'C( !'"n Coil (nit$
A)( !Air )"ndling (nit$
System
composition
Feature
Cooling to*er
+"ter piping, -ct *oring
+"ter pps
!ystem concet
Desin
Desin Commissionin!peration MaintenanceInstallation Relia"ility
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#et$or%
Feature Chiller system
Coplic"ted *iring
MULTI V Plus (VRF)
iple *iring
Desin
Desin Commissionin!peration MaintenanceInstallation Relia"ility
Easy network wiringEasy network wiring
1. Design Comarison "et#or$ %esign
AC&
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1. Design Comarison Total management
Desin
Desin Commissionin!peration MaintenanceInstallation Relia"ility
'(an)*act)rer+
VAV ,o-ess)lier
Control
system
Feature Chiller system MULTI V Plus (VRF)
(For VRF M(For VRF Man!a"t!reran!a"t!rerprovide all e#!ipmentprovide all e#!ipment
Simple control structure
No additional control provider
Central control and energy monitoring with
low cost available
Complicated control structure, additional
control manager in the system needed,
increasing cost
Third part control provider needed,
interconnectivity problems.
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Desin Commissionin
MULTI V Plus (VRF)Chiller system
3he systes condition only the
necess"ry roos *ith rear&
to user &eman&s'
3he systes coonly condition the entire ilding
"t predeterined ties, *ith no rear& to user &eman&s'
(ery hot mi&niht $ee%en& holi&ay etc)
Capacity
control
Feature
$ter o%"e ho!rs operation& VRF "o!ld be operated or the !ser demands.$ter o%"e ho!rs operation& VRF "o!ld be operated or the !ser demands.
/etter Caacity oeration0
erating Area
Limite% oeration0
In%ivi%)al oeration
!peration
!peration MaintenanceInstallation Relia"ility
2. eration Comarison
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Temerat)re
control
Feat)re Chiller system
Re3)ire
1 or 2
(4LTI V &l)s 5VRF6
Very recise
7 8.9
're"ise temperat!re "ontrol're"ise temperat!re "ontrol
3030
22
2020
!!
1818 2828 :8:8 ;8;8 9898
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VRF system doesnt need a d!"t spa"e.VRF system doesnt need a d!"t spa"e.
Space
*++iciency
Feature MULTI V Plus (VRF)
"ll re&riger"nt sp"ce
Chiller system
L"rge dct sp"ce
Desin Commissionin!peration MaintenanceInstallationInstallation Relia"ility
!ace 5D)ct #or$ing6:. Installation Comarison
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Chiller
&)m
/oiler
Coolingto#er
"#n the roo$top%
5(achine room %ra#ing6
)t%oor4nit
"#n the roo$top%
5Roo*to %ra#ing6
VRF system is no need or a ma"hine room.VRF system is no need or a ma"hine room.
Installation
space
Feature MULTI V Plus (VRF)
7o need " "chine roo
Chiller system
7eed " "chine roo
Desin Commissionin!peration MaintenanceInstallationInstallation Relia"ility
Installation sace:. Installation Comarison
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E%"ient !se o spa"e is possible or VRF systemE%"ient !se o spa"e is possible or VRF system
Chiller system
Space
*++iciency
Feature
& &
1>:
CHILLER !?!TE(CHILLER !?!TE(
L"rge pipe sh"&t is needed &or *"ter piping
MULTI V Plus (VRF)
VRF !ystemVRF !ystem
"ll pipe sh"&t is needed
Desin Commissionin!peration MaintenanceInstallationInstallation Relia"ility
!ace 5&ie sha*t6:. Installation Comarison
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VRF system expansion is very easy with extra o!tdoor ) indoor !nit.VRF system expansion is very easy with extra o!tdoor ) indoor !nit.
Chiller system
System
*,pansion
Feature
Capacity addition is di$$icult
as additional mechanical room, pump, cooling tower,
panel and piping is re&uired.
MULTI V Plus (VRF)
System '(pansion is 'asy
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Desin Commissionin!peration MaintenanceInstallationInstallation Relia"ility
!ystem e-ansion:. Installation Comarison
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1 step Commissioning6 steps Commissioning
MULTI V Plus (VRF)Chiller system
Commissionin
Feature
*here are a lot o "ommissioning points or the "hiller system*here are a lot o "ommissioning points or the "hiller system
5 teps Coissioning 1 tep Coissioning
@ater coole% chiller 5:6
5;6
Desin CommissioninCommissionin!peration MaintenanceInstallation Relia"ility
". o* commissioning oint;. Commissioning Comarison
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Maintenance
Feature
Maintenan"e "osts or a M!lti V is lower than "hilled water systems.Maintenan"e "osts or a M!lti V is lower than "hilled water systems.
@ater coole% chiller 5:6
5;6
MULTI V Plus (VRF)
'ilter cle"ning
)e"t e9ch"nger cle"ning
Cycle chec y noteoo !LG :;$
Chiller system
'ilter cle"ning-ct cle"ning+"ter pipe "inten"nce
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(For +hiller ,ater treatment is re#!ired or "lean water(For +hiller ,ater treatment is re#!ired or "lean water
&oll)te% Cooling To#er0
.ater
treatment
Feature Chiller system
.ater treatment is re/uire&
!de&icient service c"n c"se legion"ry dise"se in the syste$
MULTI V Plus (VRF)
#o $ater treatment is nee&e&
Desin Commissionin!peration MaintenanceMaintenanceInstallation Relia"ility
@ater treatment9. (aintenance Comarison
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Scale
cleanin
Feature Chiller system MULTI V Plus (VRF)
The system is consist o* re*rigerant ies 0
"o #ater ies "o scale 5)se
re*rigerant6
"ee% to clean the #ater ies
System e$$iciency drop ) origin o$ germs
*$ter 2+3year *$ter +year *$ter -+year
18B 29:8B :9;8B
thic$ness o* scale
Energy
L
oss
(nit =
(nit = >
(For +hiller Maintenan"e ) "leaning periodi"ally by ex"l!sive "ompany(For +hiller Maintenan"e ) "leaning periodi"ally by ex"l!sive "ompany
Desin Commissionin!peration MaintenanceMaintenanceInstallation Relia"ility
!cale cleaning9. (aintenance Comarison
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(aintenance !ta**9. (aintenance Comarison
Desin Commissionin!peration MaintenanceMaintenanceInstallation Relia"ility
Maintenance
Sta++
Feature Chiller system MULTI V Plus (VRF)
(For +hiller +ertifed maintenan"e sta- is needed(For +hiller +ertifed maintenan"e sta- is needed
No need special maintenance sta$$.
'conomic and easy maintenance
The system re&uires certi$ied maintenance
sta$$ not only $or chillers but also pumps,
boilers, cooling towers etc.
/ore e(pensive maintenance cost.
" (aintenance !ta**0 (aintenance !ta**0
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&ie Erosion
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Category 1roduct4nitial Cost
"5S6%
4nitial Cost
"5S6%Total
7ater
CooledChiller
Chiller 1rice :99;;
==8=*85 9 CoolingTower 9 1ump,
1rice1;8Cooling Aoad "Tr% 9 m2 < -00 Tr =!2000 tu98r @ !,! tu9m2
E3)iment @ater coole% chiller >()lti V )nit
B 7ater Cooled Chiller
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()lti V r)nning cost is
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Category 1rice
/aintenance
Cost
"5S6%Total
7ater
CooledChiller
Chiller 1rice
:21==*85 9 CoolingTower 9 1ump,
1rice
/ulti : 1rice 11;
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Category Chiller system :? system emars
'conomic*nalysis
4nitial cost"5S6%
--,0;- ;2-,0-
unning cost
"5S6%
30,; 200,!
Shoppingmall
?, ;,000
/aintenace cost"5S6%
32,!-- !!,E
Total cost "5S6% !,2!-,;-2 !,!3,3
'1 B
!.- years
=. Economic analysis
Initial Cost R)nning Cost (aintenance Cost Total costTotal cost
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ACC "Ai$e Cycle Cost $or ! years% < Chiller .;; /H I /ulti : E.2- /H "-!>%
'1 "rea 'ven 1oint% < !.- Jears
ACC "! years% '1
!st year 2ndyear 3rd year Eth year
28
J18
J;8
J=8
/E& 1.= ?ears
Cost savings 2B
/E& 1.= ?ears
. LCC
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Chiller ()lti V
122
118==
:2
:8
288
11
1:21=B
&ro%)ct K
Installation
(aintenance
Electrical Fee
Chiller ()lti V
92
2:B19B
B
==B =:B
;B
;2=;:9B
&ro%)ct K
Installation
(aintenance
Electrical Fee
4nitial Cost "!styear%5 4! 6
ACC "! years%
. LCC
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A. Cost estimation
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A. Act)al r)nning cost
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A. (aintenance cost
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ARI Release% The "e# !tan%ar% in 288:
0aila"le throuhthe 0RI $e" site1
...'0RI'!R2
&ortion ,y cooling loa% 5B6&ortion ,y cooling loa% 5B6
I&LVI&LV
RR
A&LVA&LV
8.818.81JJ 8.;28.;2JJ 8.;98.;9JJ 8.128.12 A / C DA / C D
11
7 9 7 "*4 1art load weighting $actors%
1B1B ;2B ;9B;2B ;9B 12B12B
188B =9B 98B 29B188B =9B 98B 29B
@EIGHTED 5B6@EIGHTED 5B6
ARI998>98288:ARI998>98288:
Cooling Loa%Cooling Loa%
A. Energy e**iciency 5I&LV6