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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

Pressurization Tank SizingVolume of Pipes in

Color Codes Nom Inside

Project Name User Input Size Diam

Project No. Calculated ins! ins!

System Type Chilled /ater "eference Data 01 !2

Date +03 !43

Tank Identif. # Name 0 !13

Tank Description Cylindrical 0 5ori6ontal + +!*

$ocation %uilding! #enthouse E7ui8t 9oo" + +0 +!1

+ +03 +!4+

Volume System &'uipt Properties of (ater 3 3!-

&'uipt Dscr Volume Te"8 $8!Vol e Te"8 $8!Vol e 3 +03 3!-

(re8lace0edit) cu.ft.! T deg V t0l; < e.8 T deg V t0l; < e.8 !-

Chillers = E>a8 3 * !+4 +4 !+42 3! +03 !**

Chillers = Cond !+43 !+3 +- !+4* 3!1+ !

Cooling To%ers * !+43 !+3 +1 !+4*+ !+2 * *!*

C5/ #u"8s + 4 !+4 !3* +2 !+4*- !*4 4 4!-

C/ #u"8s - !+4* !+ 3 !+44 !2 1 -!12

Boilers = /T 1 !+4- ! 3+ !+4- !1 + +!3

5/ #u"8s 2 !+4+ !43 33 !+4-- !1+ +3 ++!2

5eat E.changers + !+4+ !1+ 3 !+41 *!3* + +!+

Cooling Coils * ++ !+4+- +!4 3 !+423 *!-* +4 +*!

5eating Coils +3 !+43 +!3* 3* !+- 4!3* +1 +4!11

9adtrs, Con>trs + !+43* +!*4 34 !+-1 4!-* 3 +1!1+

an Coil ?nits + !+432 +!1+ 3- !+-+2 -! 33 3!-*

Ter"inal E7ui8t +* !+4 3!+ 31 !+-34 -!11 3 33!4

&iscell E7ui8t + 34 3*!3*

&'uip Vol ft)! *+, e - &/pansion of (ater from )0 1 to t 31 3-!3*

$yste" Vol (t) @ 3- e @ +( Vt = !+4 ) 0 !+4 32!3*

Contigency actor ( l;s o /ater @ V8 +1,*** a @ Coe o E.8 o $teel (in 0 in) @ !4* 4 *!3*

E7ui> gals o /ater @ Vg 3,334 a @ Coe o E.8 o Co88er (in 0 in) @ !2* Total Volume of Pi

& - Net Pressurization 1actor for diap4ragm tanks & - Net &/p of 5ater gals! 4ea

T E T E T E T E T + +3 +*

2 ! ++ !1 + !+3 +* !+1 e @ !4 !+ !+1

+ !4 +3 !+ + !+* +4 !3+ & - e/ +! 33! !+

&a.i" /ater Te"8 = T"a. () T3 3 A>erage O8erating Te"8 () T 3

< E.8 o /ater r * to T3 e !2 &ini" /ater Te"8 = T"in () T+

Tan &aterial ($teel 0 Co88er) $teel &a.i" /ater Te"8 = T"a. () T3 3

Coe o E.8 o Tan &aterial a 4!*E=4 $8ecic Volu"e at T"in (t0l; V+ !+4

Tan Ty8e (O8en 0 Closed) O8en $8ecic Volu"e at T"a. (t0l V3 !+4-

Closed Ty8e (or"al 0 Dia8hrag") or"al $yste" Volu"e (t) Vs 32-

Tan $i6e (< o $yste" Volu"e) * &in #ress at 5ighest #oint (8si #+ 3*!

Deault Dia"eter (inches) D 3 &a. #ress to o8en $aety Val> #3 !

'ocatn %!r!t #u"8 ($uctn0Dischge) $uction At"os8heric #ressure (8sia)) #a +!-

$yste" 5eight a;o>e Tan (t) 5 2 At"os8heric #ressure (t!/tr) A, #a !2

#r! 'oss r Tan to #u"8 (t!/tr) 3 Venting #ressure (t!/tr) V +3

$ys Vol F < age (t ) @ Vs

Sizing Data (Enter as re7uired ;y tan ty8e G si6ing "ethod)

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

#u"8 5ead (t /tr) #5 - &a.i" O8erating #ressure (t #o *

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

System

Volume $engt4 Volume

per ft per size per size

cu.ft.! ft! cu.ft.!

!+ !

!3 !

! 3 !-

!4 !+1

!+ !

!+ !3

!3 3 !-

! +!

!*+ 3 +!

!42 !

!11 3!4*

!+2 !

!3+ * +!

! +!+2

!*1 !

!--- 3 +*!**

!2 !

+!33- !

+!** - +1!-

+!2+ !

3!1 !

3!-24 !

!-- !

!* !

!444 !

*!34 !4! !

4!--- !

es ft)! - *0,.)

ed from T* to T+

3 31

! !-

-*!- +**!1

dt @ T3=T+ @ +4

(V30V+ = +) @ !1

#a 0 #+ @ !*11

#a 0 #3 @ !4-*

#+ 0 #3 @ !43*

#a 0 #o @ !242

adt @ !+

8si . +.)* @ t

H 5g . *.)) @ t

t . 3.0 @ gals

gals . 6.))7 @ l;s

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

t . 8+.7 @ l;s

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

Pressurization Tank Sizing

9pen Tank Sizing $i6ing assu"es O8en Tan is: (+) >ented to at"o

:asis of SizingVt /eight Volu"e Tan $i6e a;o>e highest 8oint o syste", G () connected

gallons l;s t D (in) ' (t) Vt - &ini"u" Volu"e o E.8ansion Tan (gals)

(+) As a #ercentage o $yst +++ 231 +* 3! !- Vt - Vs ; of System Volume # *,,!

(3) ?sing &in, &a. Te"8, E. 24 1 + 3! !+ Vt - Vs ; e#*,,! ; *.*E.8 Vol F +e the 8i8ing # @ V F F 4*!2 !*+ !3 !+2 !1+ tan and highest 8oint o syst

(3) Tan is on suction side o # @ V F 5 F +*!2 !3* !+* !2 !4+

() Tan is on discharge sid # @ V F #5 ++*!2 !32 !3 ! !4- at the to8 o the syste"

*! Closed Tank@@ T A- * T+ - *0, dt @ ++ Vs @ 32-V+ at T+ ,.,*8 & - e;Vs 7, Vt - &ini" Volu"e o #ressuri6ation Tan

$ocation of Tank Deno" Vt gals ';s t D (t) ' (t)

(+) Tan is a;o>e the 8i8ing !3 24 -21 + 3! !+ Vt - & A$59AE +21-

(3) Tan is on suction side o !+* 343 3+1* * 3! ++!+ Pa#Pf! ? Pa#Po! or T @ +4

() Tan is on discharge sid !3 3 +- 3- 3! 1!-

Using

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

7/24/2019 7 Compression Tanks.28123914

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

ere, (3) at least

8u"8 suction

t)

gals)

ting at 3

nno%n)

n order to

;et%een

F>e 8ress!

" to T

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Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

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Energy Efcient Building Design College o Architecture Illinois Institute o Technology (IIT), Chicago

Instructor: Varie C! Tho"as, #h!D!, #!E! $id"ore, O%ings &errill ''# *+-*!.ls

P"&SSU"Iolu"e ca8acity o the syste"! $yste" >olu"e consists o:

the 8hysical inside >olu"e o all the 8i8e sections in the syste"! The 8i8e >olu"e is con>erted in

li7uid using the density o the li7uid!

the li7uid storage ca8acity o all the e7ui8"ent in the syste"! The 8hysical >olu"e storage ca8acter"inal e7ui8"ent, 8ri"ary e7ui8"ent and "iscellaneous e7ui8"ent, etc!, that is con>erted

>olu"e using li7uid density!

9pen Tank Sizing

O8en tan si6ing assu"es that the tan is:

>ented to the at"os8here

at least three eet a;o>e the highest 8oint in the 8i8ing syste"

connected to the suction side o the 8u"8

Tank Volume

The tan >olu"e si6e in gallons is esti"ated as a 8ercentage o the total syste" >olu"e The "ini"u"

>olu"e is 4< in accordance %ith +21-A$59AE 5and;oo! An alternati>e to si6ing the tan ;ased on 8esyste" >olu"e, the syste" li7uid e.8ansion >olu"e can ;e used to deter"inethe tan si6e! This e.8an

is the dierence in >olu"es at the "a.i"u" te"8erature o the 8i8ing syste" and at the "ini"u" te"

Closed Tank Sizing

ill #ressure: The tan location %ith res8ect to the 8i8ing syste" aects the initial ll or "ini"u" 8res

at the tan! The tan can ;e at three 8ossi;le locations %ith res8ect to the syste"!

(+)Pf - V F 1 F e the 8i8ing syste"

V @ 8ositi>e >enting 8ressureM (assu"es +3 t o li7uid i not no%n)

@ rictional 8i8e losses ro" tan to 8u"8 that "ust ;e o>erco"e in ordo;tain 8ositi>e air >enting 8ressure (t o li7uid as s8ecied in in8

A @ at"os8heric 8ressure (t o li7uid)

(3)Pf - V F = F ity ( @ Density 0 +! +! !22 !21 !24

Pine"atic >iscosity (s7 t0sec) ! +3!+- -!2 !-4 !3$8ecic heat (Btu0l; o) +! +! +! +! +!+

lycol Density (l;0cu t) 4-!21 4-!** 4-!++ 44!** 4*!- 4!41 4!+3

$8ecic Jra>ity ( @ Density 0 +!2 +!1 +!1 +!- +!* +! +!+

Pine"atic >iscosity (s7 t0sec) *2*! +2! 1*! 1!4 33!4 +3!* 4!

$8ecic heat (Btu0l; o) !- !- !-4 !-1 !1+ !1* !11

:rine Density (l;0cu t) -1!*2 -1!3+ --!-+ --!3+ -4!2

$8ecic Jra>ity ( @ Density 0 +!34 +!3* +!3* +!3 +!33

Pine"atic >iscosity (s7 t0sec) +-+!- --!* !- 3+!1 1!2

$8ecic heat (Btu0l; o) !44 !4- !41 !42 !-+

tha Diesel Density (l;0cu t) *2!3 *-! *4!+ *!2 *! *+!+

%s: $8ecic Jra>ity ( @ Density 0 !2* !23 !2 !11 !1* !13

Pine"atic >iscosity (s7 t0sec) -4!- +4+!* 1!- 1! 32!+ -!*$8ecic heat (Btu0l; o) !- !1 !2 !* !*+ !*3

Petrol Density (l;0cu t) 4!+ *!* !2 !- ! 3!

$8ecic Jra>ity ( @ Density 0 !- !- !-3 !-3 !-+ !41

Pine"atic >iscosity (s7 t0sec) ++! 2!1 1!1 -! *!* !

$8ecic heat (Btu0l; o) !- !1 !2 !* !*+ !*3

P"9P&"TI&S 91 =I= T&JP&"

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Energy Efcient Building Design College o Architecture Illinois Institute o Technology (IIT), Chicago

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