60241702 Thermal Energy Storage System

8/13/2019 60241702 Thermal Energy Storage System

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Thermal Energy StorageSystem

Operations Manual

Project: Pune Central, Puner"

s / I : MS

Cristopia Energy Systems (I) Pvt.Ltd.

Village Umri !e"a, #$, %& In"ore'%!an" a oa"In"ore ' *+$ $ (&.P.)

P!: - #'$ -** * / ++, $ -*0 0 / -, 1a2: - #'$ -** $Email: cris_indiafajsancharnet.in


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I n d e x

#) Intro"uction to 3!ermal Storage

System

$) 4eneral In5ormation on Cristopia

3!ermal Storage System

) 6esign 6ata an" System

Selection

*) System 6escription+) 3ec!nical 6ata Sheets

0) P s I 6iagram

-) 7istogram

) 4ui"elines for Operation Operation

Logic!

"! Monthly Operation Strategy

* * * * * * * * *


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#. I83 96UC3I98

t t!e time !en e tal more an" more a;out ecological ris s an" t!erationalisation o5 energy use, t!e t!ermal energy storage represents atec!nical solution a"apte" to in"ustrial cooling an" air con"itioningsystems.

Classical systems are "esigne" 5or pea "eman", even i5 e use t!ec!illers at # < 5or only a 5e "ays or 5e !ours every year.

3!ermal storage ;y latent !eat allo s a re"uction in c!iller capacity.3!is storage provi"es s!ort5all o5 t!e energy !en "eman" is !ig!ert!an t!e c!iller capacity. 3!us c!iller operation is continuous an" itse55iciency at ma2imum.

3!e S3= allo s real management o5 t!e cooling energy accor"ing to t!e"eman". lso signi5icant savings can ;e ma"e on running costs using o55 pea electrical tari55s.

3!e re"uction in t!e c!iller si>e also re"uces t!e ?uantity o5 re5rigerantuse", a point t!at is more an" more important it! t!e ne restrictivela s on C1C@s.

3!e S3= improves system relia;ility an" o55ers a sa5er mo"e o5operation 5or processes or ;ac 'up systems.

Cristopia, a manu5acturer o5 latent !eat t!ermal storage systems presentin t!is "ocument t!e ;asic principles o5 t!ermal storage.

""itionally e "etail t!e 5un"amental elements 5or installation,operations an" maintenance o5 t!ermal Energy Storage System.

3!e Cristopia team is al ays at your "isposal to assist you.


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#..$ %E&E'(L I&)O'M(TIO&.

$.#: E8E 4A S39 4E. $.#.#

B7A S39 E E8E 4A .

Until no , it !as not ;een possi;le to store reasona;le ?uantities o5 !eat or col"an" as a result, c!illers !ave ;een si>e" to satis5y ma2imum "esign loa" con"itionsDmuc! o5 t!is capacity ;eing use" 5or only a 5e !ours per "ay (or even year).

6aily t!ermal storage allo s t!e use o5 smaller c!illers. 6uring lo "eman" perio"s t!e store is c!arge", t!en "uring !ig! "eman" t!e energy store" isrelease".

1or cyclic loa"s, 3!ermal Energy Storage permits smaller c!illers to operate on anear continuous ;asis Dstoring energy "uring o55 pea (usually c!eaper) perio"s5or use "uring pea !ours.

#.$ 79B IS E8E 4A S39 E6

F SE8SIG=E 7E 3

Principally, e consi"er ater as t!e storage me"ium 5or sensi;le energy.s ell as ;eing availa;le c!eaply an" in a;un"ance, ater !as a volumetric

!eat capacity o5 #.#0 B!/m # C Dgreater, 5or instance, t!an iron or stone.7o ever, t!ere are limitations to its use especially !en use" it! largetemperature "i55erentials.

In cooling applications, a practical ma2imum o5 only 0 B!/m can ;eac!ieve".

. = 3E83 7E 3

=atent !eat is t!e name given to t!e energy eit!er store" or li;erate" !ena su;stance c!anges p!ase.

E2ample : ice c!anges to ater, ater to gas or steam.

3!ese c!anges occur at constant temperature. 3!e energy a;sor;e" or release""uring p!ase c!ange is rat!er more signi5icant t!an t!e energy re?uire" to"ecrease or increase t!e PC& (P!ase C!ange &aterial) temperature (sensi;le !eat).

*aily consumption

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


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3o melt a material e re?uire a ?uantity o5 energy. 1or instance to melt one gram o5 icere?uire calories at constant temperature. 3!is energy is release" !en t!e material iscoole" "o n an" returns to soli" p!ase. 6i55erent materials !ave "i55erent 5usion points.1or 3!ermal Storage e use "i55erent materials to satis5y t!e re?uirements o5 a i"e rangeo5 applications. 3!ese materials are calle" PC&s (P!ase C!ange &aterials).

=atent !eat storage presents us it! t o signi5icant a"vantages :

F !ig! t!ermal "ensities can ;e ac!ieve",F energy is release" at almost constant temperature.

S39 4E PP=IC 3I98S

B!en consi"ering potential applications 5or =atent thermal storage it is necessary toe2amine t!e energy source ;eing use".

B!ere cooling is generate" ;y electricity t!roug! a t!ermo"ynamic mac!ine (c!iller), t!eattractiveness o5 storage is signi5icantly increase" since re"uce" au2iliary loa"s result insigni5icant savings in electrical consumption. B!ere t o part tari55 (&a2imum "eman" Hunit c!arges) an" / or 3ime 95 t!e 6ay tari55s (lo er unit c!arges "uring o55 pea an" / or!ig! unit c!arges in pea perio"s) are applica;le, t!e energy cost is 5urt!er gettingre"uce".

In in"ustrial cooling an" air con"itioning systems, t!e process re?uirements "o not permit large temperature "i55erentials across t!e circuit. 3!us, sensi;le energy storage!ic! re?uires very large storage volumes is generally unsuita;le an" C IS39PI

S3= systems are most appropriate.

I!e ! ig! cost o5 t !e c! i l lers ma es t !e re"uct ion ot instal le" po erattractive. In"ustrial process cooling an" air con"itioning a tavoura;leapplications tor t!e use o5 = 3E83 7E 3 S39 4E.

t5elovy are liste" some typical applications 5or 3!ermal Energy Storage

ir Con"itioning Process Cooling Gac 'upF 955ice ;uil"ing+ ,,,,,,,,,,,,,,,, n in . I . I -imin mm. .............. ii.l _____________

F 6air in"ustries F Computer roomsF 7ospital F Slaug!ter !ouses F Clean roomsF Gan s F Col" stores F 9perating 3!eatresF Con5erence centres F Central itc!ens F 3elep!one e2c!angesF &useums F r!arm"ceut%.il F Col" storage

in"ustriesF ecor"ing stu"ios F Gottling plants F 3V stu"iosF 3!eatres F Gre eries F E2plosive storagesF 6epartment stores F S ating rin sF Supermar ets F &eat in"ustriesF irportsF CinemasF Sport centresF 7otel

3!e a"vantages o5 t!ermal storage are :

F a re"uction o5 c!iller si>e (+ to J


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ccor"ing to t!e application a signi5icant installe" c!iller capacity re"uction o5+ to < < can ;e ac!ieve".

lso ot!er components (trans5ormer, cooling to er, etc..) are re"uce" in t!esame proportions an" t!e servicing o5 e?uipment is simp!lie".

lso it allo s t!e re"uction o5 ma2imum "eman" an" use ot electncitv at

nig!t to ta e a"vantage o5 3ime 95 t!e 6av tari55.

$.$ S3= SAS3E&

S3= ' S3orage o5 =atent 7eat

3!e S3= is compose" o5 a tan 5ille" it! Kno"ulesK.

3!e tan !as upper man!oles to allo t!e 5illing it! no"ules. lo erman!ole allo s emptying. Insi"e t!e tan t o "i55users (inlet an" outlet) sprea"t!e !eat trans5er 5lui" along t!e tan . 3!e pressure "rop t!roug! t!e tan is $.+mB4. 3!e inlet in c!arge mo"e must ;e via t!e lo er "i55user in or"er to ensuret!e natural strati5ication.

3!e tan s are manu5acture" in ;lac steel (test pressure ;et een *.+ to # ;ar),are "elivere" empty an" positione" on site or, i5 t!e access to site is impossi;le,constructe" on site. Concrete tan s can also ;e use".

3!e no"ules are sp!erical it! a "iameter o5 77 mm, - mm or J mm("epen"ing on t!e no"ule type).

3!e sp!erical plastic no"ules contain t!e P!ase C!ange &aterial (PC&). 3!emec!anical an" c!emical c!aracteristics o5 t!e no"ule s!ell (manu5acture" in

po lyole5in) are ell a"apte" to t!e con"it ions encountere" in irCon"itioning or e5rigeration systems. 3!e use o5 mo"ern tec!nologies

permits ?uality control . 3!e materials use" are completely neutral to t!e p!asec!ange materials an" !eat trans5er 5lui". 3!e p!ase c!ange materials use" ;yC IS39PI Energy Systems, an" also t!e no"ules, !ave ;een la;oratory teste"in 1rance an" a;roa". 3!is pro"uct "evelopment or !as le" to a very !ig!relia;ility o5 t!e S3=.

9nce 5ille" it! PC& t!e no"ule plugs are seale" ;y ultrasonic to ensure per5ect ater'tig!tness.

3!e no"ules are "elivere" in ;ags. 3an s are 5ille" on site. 3!e 5illing isregular an" !omogeneous.

C IS39PI Energy Systems offers a range of temperatures/ '

LC to H $-LC

3!e S3= !as ;een conceive" 5or !y"raulic applications.Please consult C IS39PI Energy Systems 5or any ot!er application.

#.0 S1STEM 2OMPO&E&TS

3!e ?uantity o5 energy store" 5or eac! type o5 no"ule is proportional to thestorage volume. 3!e num;er o5 no"ules in a system "etermines t!e heate2c!ange rate ;et een t!e no"ules an" t!e !eat trans5er 5lui".

$. .# 3erminology :

7o to un"erstan" t!e terminology:


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STL ' '#+: p!ase c!ange temperature in LC #+:

tan volume in cu;ic metres

STL ' 8#+ ' + 8: negativetemperature #+: t!e p!ase c!ange

temperature in LC + : tan volume incu;ic metres

S3= ' C ' 3$$C: t!e p!ase c!ange temperature o5 LC (t!e

no"ules !ave a "iameter o5 J0 mm)# : tan volume in cu;ic metres

#.0.# 3!e no"ules:

3!e envelope:

7ig! Strengt! special plastic material c!emically neutralto ar"s eutectics an" !eat trans5er fluid t!ic ness #.+ mm : nomigration o5 t!e !eat trans5er 5lui" e2terior "iameter:

F J0 mm :F -- mm :

e2c!ange sur5ace

ir con"itioning In"ustrial Cooling


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Plug Air pocket

Phase ChangeMaterial (PCM)

Blend of polyolefines


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8 o"u lec!aracter is t

3!e ta;le !erea5ter gi

M M M M M M M M M M 8 o " u l e ty pe

#CS

,,NC t!P nn"ules Storage 3eP!ase c!ange

temperatureLC

''''''''''''''''''''''''''. . ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' O''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

9perating temperaturelimite C #

Q Q ''''''''''''''''''

K''''''''' I '' '' ''

S8.S8.$J '$ .JS8.$0 '$0.$S8.$# '$#.S8.#/ '# . '* LCS8.#+ '#+.*S8.#$ '##.- aS8.#, '# .*S8. ,0 ' 5.5 H0 LCS8. , - $.0S.99C99SC$- H $-

$. . 37E 3 8% 86 3 8% I8SU= 3I98:

3!e !ori>ontal cylin"rical tan is ma"e o5 ;lac steel. s stan"ar", t!etest pressure is *.+ ;ars.

3 o upper man!oles allo t!e tan to ;e 5ille" it! no"ules. 3 oconnections are 5itte" on t!e man!ole covers 5or 5illing air ;lee" valvesan" manometers.

3!e "imensions o5 t!e stan"ar" tan s are give in t!e ta;le ;elo . 3!e

tan can ;e also vertical it! a s irt (see "ra ing V ).

1or systems or ing at atmosp!eric pressure is possi;le to use rectangulartan s (in steel or concrete).


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ccor"ing to t!e space availa;le e can mo"i5y t!e "iameter an" lengt! to5it t!e tan to t!e site. 3!e tan is manu5acture" accor"ing to plantre?uirements.

I8SU= 3I98

( ol" storage :Insulation is essential an" !as t o o;jectives :

F to re"uce t!ermal losses,F to avoi" con"ensation.

Ri,,,,R3!einsu.ation il. ;e o5 StyQ type, injecte" m,nera , etc... ascommon.in /C or re5rigeration. T ,,a!t!e3!e insulation inclu"es t o vapour ;arriers to avo." ater migrate t!roug!

t!e

insulation.

,3an s s,te" out"oors must !ave e2ternal aterproo5 cla""ing to protect t!etan .

7ot storage :

3!e insulation ill respect t!e same rules as 5or ater storage.

In ;ot! cases :F it is necessary to allo insulation ;et een cra"les an" tan .

F 3!is insulation must it!stan" t!e tan eig!t ('#+ g/m ) 9ptionsinclu"e" !ig! "ensity neoprene or e?uivalent.

. .* 7E 3 3 8S1E 1=UI6

3!e !eat trans5er 5lui" must ;e compati;le it! all t!e !y"raulic net orcomponents, an" it! t!e operating temperatures.


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F C!arge pump

3!e c!arge pump 5lo rate "epen"s on c!iller capacity an" 6elta 3. 3!e !eattrans5er 5lui" c!aracteristics must ;e ta en into account

F 6istr i;ution pump

3!e "istri;ution 5lo rate "epen"s on t!e ma2imum "eman" an" 6elta 3. 3!e!eat trans5er 5lui" c!aracteristics must also ;e ta en into account. $. . 37 EE'B A V =VE

3!e ' ay valve must ;e a mo"ulating type. 1or systems ;elo LC allo5or a sp in" le e lement !ea ter. 1or se lect ion , see manu5acturer@s"ocumentation.

#.4 STO'(%E ST'(TE%IES

600 500 400

*aily consumption

300(kW)

200

100

0 # + - J ## # #+ #- #J $# $

S3= manages t!e cooling energy according to designer5s re6uirements7 here arevarious strategies t!at can ;e a"opte".

#.4.3 P('TI(L STO'(%E 'E*82E* 29ILLE' 2(P(2IT1!


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#


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3!e c!iller capacity is re"uce" to to 0 energy isst9re . 6ur ing "ayv Z Z l 6urin

$.*.$ =9B SE S98 6ISC7 4E

P( B)

0 # + '

!"" $

ZZZ

C!arge

6isc!arge

C!arge

#ire ro( ucZ ion

# $ * + 0 - J # ## #$ # #* #+ #0 #- # #J $ $# $$ $ $*

partial storage in !ig! season can ;e easily trans5orme" into a total storage or

time o5 "ay storage "uring lo season in or"er to increase t!e running costssavings.


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P( B)0

30 343: 3;3< 3=

3" #$#3 ###0

P( B)

0 ',


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#$$

+6 C!arg

e

400300

C!arge

200

I # 0 4 : ; < = " 5+> ? 3# 30 34 3: 5

6uring t!e air con"itioning perio"R% 5illers are stoppe" aT" ail t!e coolingenergy is provi"e" only ;y t!e S3=.

$.*.+ G C%'UP

P(

B

) 0

#

+ '

400-

6isc!arge


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!ours


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3!e S3= is use" as ;ac 'up only !en it is necessary. Itreplaces t!emain cooling system in case o5 5ailure. 3!e S3= is regularlyrec!arge"to compensate 5or stan"ing losses. K

to

*esign *ata andSystem Selection

0,3 . *esign *ata :


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#. m;ient Con"itions

6ry Gul; Bet Gul; * LC $0.#LC

$. C!ille" Bater Inlet 3emperature C!ille" Bater9utlet 3emperature

#$ LC - LC

. Con"enser Bater Inlet 3emperature : $ LCCon"enser Bater 9utlet 3emperature : 0LC

0 ' # . System Selection /

Pea@ Load : - 3

C!illers

3!ermal Energy Storage System:$$+ 3 2 $ 8os.

: # * 3 7 (0$ CU&) 2 # 8o. + +3 7 ( CU&) 2 # 8o.


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Plate 9eat Exchanger / 0+ T' x $# 8os.

System

*escriptionSy ste m 5or Pune CentraV !as % &%'( )%* (it!re"uce" C!Uler Capacity 5or Pea =oa" o5 - 9

Entire ;uil"ing s!a.# !avecon, mon g !ave $ 8os. Scre(C!illers o5 $$+ 3% compressors , $ 8os. t!ermal energystorage system CU& respectively, primary,secon"ary , con"enser an" gas et !eat e2c!anger $ 8os 2 0+ 3 .

$$+ 3 2 $ 8os. Scre( C!illers are connecte" in Parallel (it! 3(o3!ermal Storage Systems o5 0$ Cum [ Cum Capacities an" aresu55icient to meet Peal =oa" o5 - 3 .

3!ermal Energy Storage System is use" to optimi>e t!e installation.Instea" o5 selecting t!e c!illers 5or pea cooling rating, t!e use o5 3!ermalEnergy Storage system allo(s selection o5 c!illers 5or average capacity.

o5 0$ tuP7E pumps, p


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3!ermal Energy Storage System uses t!e latent !eat o5 crystalli>ation an"5usion to provi"e a compact an" controlle" storage. 3!e system consists o5storage no"ules 5ille" in t!e e2c!anger vessel. 6uring perio" o5 lo( loa",t!e eutectic salt 5ille" in t!e storage no"ules 5ree>es t!ere;y a;sor;ing

cooling po(er an" (!en t!e cooling "eman" e2cee"s, t!e 5ille" eutecticsalts melt to release t!e a""itional cooling po(er

F e"uction o5 c!iller si>e

F e"uction o5 installe" po er an" plant room space

F e"uction o5 operation an" maintenance costs.

F Pea @s!aving@ or lopping@ o5 cyclic loa"s

9ptimi>ation o5 electrical resources ( %enerator set and Electricalinstallation )

S e"uction in use o5 re5rigerant

S Increases system relia;ility

S Getter energy management (o55'pea electricity)

S vaila;ility o5 Gac 'up "uring o55 pea mont!s

S e"uction o5 electrical consumption .

:. Technical *ata Sheets / Enclose"

;. P A I *iagram : Enclose"

Piping an" instrumentation "iagram is enclose" .


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28MC


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nicalSeecllic

ations

P9E for isolation of %lycol Dater7 # _ _ _ ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

*escription

''''''''''''''''''' .,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, -

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

&os.'

- ___________________________

Secondary sideDater!

. '''''''''''''''''''''''''''''''''' O Q

Q

,

Primary Side #: Ethylene

%lycol! 3

Entering Bater 3emp. ( C ) Q #$ *,

=eaving Bater 3emp. ( C ) -

''''''''''''''''''''''''''''''

J.+

Bater 5lo rate (CU&/7r.) $$ .-0 $ $.*#,'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''O'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Bater Pressure 6rop ( &B4) *. + 0.

ate" Pressure ( Gar) - Gar - Gar


26/55

Page -

Techn

icalSeecllications

P9E for isolation of %lycol Dater7 # _ _ _ ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

*escription

''''''''''''''''''' .,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, -

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

&os.'

- ___________________________

Secondary sideDater!

. '''''''''''''''''''''''''''''''''' O Q

Q

,

Primary Side #: Ethylene

%lycol! 3

Entering Bater 3emp. ( C ) Q #$ *,

=eaving Bater 3emp. ( C ) -''''''''''''''''''''''''''''''

J.+

Bater 5lo rate (CU&/7r.) $$ .-0 $ $.*#,'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''O'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

Bater Pressure 6rop ( &B4) *. + 0.


27/55

ate" Pressure ( Gar) - Gar - Gar

Page -

%uide


28/55

li

nes f orO

per


29/55

ation

Oper

atio


30/55

nLogi

c!

s i * - k # -

9

=. _%mdeiines Fr

_OEeration_/


31/55

.7VCInstallationconsists

o5:#.BaterCoole"Scre

C!illers:$$+3 2$ 8os

#

:^

S X ^^^


32/55

^^

e

and

O&

prior

C!iller

9 8.

.

5 , ,n n P

r a ting

pum

psl

so pum

pcan

;estan"

;y ;ysel

ect


33/55

inganyo5t!e

oper atingP

t!r oug!stan"

;yarr angements

.Secon"aryPumps 5or7VC

'Bor ing H#Stan";y

9ne

pu

mp


34/55

s!all

;eoperational

t!r oug!V16an"V16

illgetcomman"5rom

pressuretrans"ucer . Incaseo5V165ailuret!e

pun


35/55

can ;ec!ange"over

to69=start ing.Eac!op

erating

pumpmust698assoonasloa""eman"onlo

si"e isavaila

;le.


36/55


37/55

ing H#Stan"

;yEac!op

erating

pumpmust

;e5or

par ticularmac!inean"

9 8assoonasitsC!ille

r pumpis9

8,l

so pu

mp


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can

;estan"

;y ;y

selectinganyo5t!eopera

ting pumpst!r oug!sta

n" ;yarr angemer

+.

P7EPumps

' #Bor ing H #Stan"

;yEac!


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operating

pumpmust

;e98assoonascoolingis

re?uir e"

pumpcan

;estan"

;y ;yselectinganyo5t!e

operating

pumpst!r osel


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ectors itc!.

0.

&otori>e"valves:

& :Valves5or0$&

S3=C!ar gingandloadmeet

ing


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S3=. ge an" port clos

G. System


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operationiscategoriHed In tBo

Modes.


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3. &ight mode.#. *ay mode.

3. &iftht Mode/9peration selection ill ;e on time ;ase an" time must ;e a"justa;le.

2harging : 3imings # : P& to 0: &.

Got! c!illers ill ;e at 've set point (auto select t!roug! timer)

G937 C7I==E SE3 P9I83 M ' *LC, C!iller Inlet Control.

s soon as c!arging is selecte" ;e5ore c!iller start'up, 5ollo ing se?uenceo5 operations must ;e per5orme":

Se?uence I : 1or S3= c!arging it! Got! C!iller Valve &V#, &V$ '9pen Port o5 valve Vm"l [ Vm"$ close Primary Pump 98,Con"enser Pump 98, Cooling 3o er 1ans 98.

Se?uence II

s soon as c!arging complete C!iller is s itc!e" 911, 5ollo ing e?uipmentmust ;e 911. Con"enser Pump, Cooling 3o er 1ans, Primary pumps '911. Valve &V#, &V$,' Close.

II *ay Mode/ Load Meeting and STL *ischarge

9peration selection ill ;e on time ;ase an" time must ;e a"justa;le. S3=

"isc!arging [ =oa" &eeting: # : & to # : P&. Set Point o5 C!illers

ill ;e c!ange" 5rom 've to Hve as ;elo : C!iller I M H JLC C!iller Inlet

Control.

2hiller II , =J2 2hiller Inlet 2ontrol.9oBeKer7 ;e5ore starting of chillers7 folloBing se6uence of operations must

;e per5orme".


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Valve &Vl, &V$ ' Close"Valve &V o5 C!iller I open !en C7B return temp. 3$ 1+ 9Valve &V* o5 C!iller II open !en C7B return temp. 3$ #*LCValve &Vl open !en C7B return temperature 3$ # L C s soon

as return 3emperature is Z#$LC , VI Closes Valve &V$ open !enC7B return temperature 3$ #+L C s soon as return 3emperatureis Z#$LC , V$ Closes

V&"l s V&"$ ' B&V ' &o"ulates at H- LC.

Primary Pump 98, Con"enser Pump 98, Cooling 3o er 1ans 98Secon"ary Pump 98 t!roug! V16.

s soon as any C!iller is s itc!e" 911, 5ollo ing e?uipment must ;eUrr.

It@s Con"enser Pump, Cooling 3o er 1ans, Primary pump ' O)).

Secon"ary Pump 911, P7E pump 911

2. SeasonBise Operations shall Fe as under /,2.I

Summer / March to une! *ay Mode / 3$/$$ (M to

3$/$$ PM Load Meeting and STL *ischarge

8ormally ;ot! t!e C!illers along it! S3= 6isc!arge s!all operate to meet t!e pea loa" 5rom # & to # P& .In pea !ours 5rom #$ 8oon to P.&., ;ot! t!e c!illers s!all run on # e" valve &V$ : 9pen #+LC [ Close at # LC


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Got! t!e B&V mo"ulates at H -LC . &ight

Mode/ 3$/$$ PM to $;/$$ (M

9peration selection ill ;e on time ;ase an" time must ;e a"justa;le.

2harging : 3imings # : P& to 0: &.

Got! c!illers s!all operate on C!arging &o"e [ ill ;e at 've set point (autoselect t!roug! timer)

G937 C7I==E SE3 P9I83 M ' *LC, C!iUer Intlet Control.

s soon as c!arging is selecte" ;e5ore c!iUer start'up, 5oUo ing se?uence o5operations must ;e per5orme":

Valve &V#, &V$ ' 9penPort o5 valve Vm"l [ Vm"$ close 1ans N8

Primary Pump 98, Con"enser Pump 98, Cooling


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Se?uence II

s soon as c!arging complete C!iller ise?uipment must ;e 911. Con"enserPump, pumps ' 911. Valve &V#, &V$,'Close

2.# Dinter / &oKemFer to

)eFruary! *ay Mode / 3$/$$ (M

to 3$/$$ PM Load Meeting and

STL *ischarge

8ormally 9ne C!iller along it! S3= 6isc!arge s!all operate to meett!e

pea loa" 5rom # & to # P& .In pea !ours 5rom #$ 8oon to P.&., 9ne c!iller s!all run on # e" valve &V$ : 9pen #+LC G Close at # LC

Got! t!e B&V mo"ulates at H -LC .

&ight Mode/ 3$/$$ PM to $;/$$ (M

9peration selection ill ;e on time ;ase an" time must ;e a"justa;le


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C!arging : 3imings # : P& to 0: &.

C!arging DGot! c!illers s!all operate on C!arging &o"e [ ill ;e at 've set point(auto select t!roug! timer)


s soon as c!arging is selecte" ;e5ore c!iller start'up, 5ollo ing se?uenceo5 operations must ;e per5orme":

Se?uence I 5or S3= c!arging it! G ot! C!iller Valve &V#, &V$ ' 9penPort o5 valve Vm"l + Vm"$ close Primary Pump 98, Con"enser Pump98, Cooling 3o er 1ans 98.

Se?uence II

s soon as c!arging complete C!iller is s itc!e" 911, 5ollo ing e?uipmentmust ;e 911. Con"enser Pump, Cooling 3o er 1ans, Primary pumps '911. Valve &V#, &V$,' Close

2.0 Monsoon / uly to OctoFer! *ay

Mode / 3$/$$ (M to 3$/$$ PM Load

Meeting and STL *ischarge

8ormally 9ne C!iller along it! S3= 6isc!arge s!all operate to meet t!e pea loa" 5rom # :& to # P& .In pea !ours, 9ne c!iller s!all run on # < capacity. 7o ever 5orremaining !rs. (# :& to #$ 8oon [ / P& to # P&) , 9ne circuit o5 9neC!iller H S3= "isc!arge s!all ;e normally su55icient to meet t!e =oa"sC!iller II s!all ;e 8ormally 911 "uring t!e "ay time1or t!e &ont! o5 9cto;er, ;ot! t!e C!illers H S3= "isc!arge s!all meet tne# act.

Got! t!e C!illers operate at Hve set point. (&et Control)C!iller I Set point : H JLCC!iller II Set Point : H LC


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&V o5 ;ot! t!eS3=

senses C0$ Cum S3= &otori>e" valve &V# : 9pen # C [

Cum S3= &otori>e" valve &V$ : 9pen #+ C [ Close at

Got! t!e B&V mo"ulates at H

-LC . &ight Mode/ 3$/$$ PM to

$;/$$ (M

9peration selection ill ;e on time ;ase an" time must ;ea"justa;le.

C!arging : 3imings # : P& to 0: &

2harging

Got! c!illers s!all operate on C!arging &o"e [ ill ;e at 've set point (auto select t!roug! timer)


s soon as c!arging is selecte" ;e5ore c!iller start'up, 5ollo ingse?uence o5 operations must ;e per5orme":

Se?uence I 5or S3= c!arging it! Got! C!iller Valve &V#, &V$ '9pen Port o5 valve Vm"l [ Vm"$ close Primary Pump 98,Con"enser Pump 98, Cooling 3o er 1ans 98.

Se?uence II

s soon as c!arging complete C!iller is s itc!e" 911 5ollo ing

& V o 5 ; o t ! t ! e S 3 = s e n s e s C 7 B r e t u r n V# 9 # C [ Ctoae at


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Monthly

OperationStrategy

Project/oncord

Pune9O8'L1 LO(*

2entral

Month Bise Operating Strategy

Month : Ja o Consi ere 428 TR


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J m to # 8oon [ $ to $$ 7rs. : 6uring t!is perio" =oa" s!all ;e met ;y S3= "isc!arge. Got! t!ec!illers s!all ;e 911 to ta e t!e a"vantage o5 3.9.6. tari55 rates. Primary pumps, Con". Pumps, C.3.5ans 911. C!illers Valves V& [ V&* Close. S3= Valves V&l [ V&$ 9pen B&V &V"l : Port

9pen at C7B # LC , Close at #$LC &V"$ : Port 9pen as C7B #*LC , Close at # LC

# & to $ !rs : =oa" meeting it! ;ot! C!illers [ S3= "isc!arge.Got! t!e c!illers along it! S3= "isc!arge s!all meet t!e loa" "uring t!is perio".C!iller I set point: (H) JLCC!iller II set point: (H) LCPrimary Pumps, Con". Pumps. C.3. 5an :98

B&V &V"l [ &V"$ mo"ulatesC!iller valves V& [ V&* 9pen, S3= valves : V&l open at C7B # LC [ V&$open at C7B #*LC

7istogram 5or t!e &ont! o5 &arc! enclose".

D :] & y 6 o c u m e n ts B o g e

S3= 1e; ' V ariant**

STL S t r a tegy of Energy STL!

3$$


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Capacities (tons) *J* # $ * + 0 - J # ## #$ # #* #+ #0 #- # #J $ $# $$ $ $* 55l;ase

liil"irect pro"uctior7&"isc!arge c!arge 7over c!arge < o5 Energy (S3=)


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Documents

60241702 Thermal Energy Storage System