HYDAC TePostfach 1D-66273 SIndustriegeD-66280 S Tel.: +4Fax: +4E-mail: sp

OPERA

ASPTable o

1. 2. 2.1. 2.2. 2.3. 2.4. 2.5. 3. 4. 4.1. 4.2. 

echnology Gmb251

Sulzbach/Saar. Gebiet

Sulzbach/Saar, G

49 (0) 6897/509-49 (0) 6897/509-eichertechnik@

ATING INS

Plight of contents

ProgramUser inteOverviewSelectionCalculatioNumber pInformatioCalculatiExampleTask to cTask to c

bH

Germany

Germany

-01 -464 (Accumula

@hydac.com

STRUCTIO

Accus

m descriptierface ......

w ...............n fields ......on and inppad & resuons and reion proces

e task .......calculate Vcalculate p1

ator Technology

ONS

umula

ion ...........................................................ut parame

ult button ..esults field ss ............................0 ..............1 ...............

ASPli

y)

1/13

ator Si

................

................

................

................eters .........................................................................................................

ight Accu

imulat

................

................

................

................

................

................

................

................

................

................

................

umulator S

tion Pr

................

................

................

................

................

................

................

................

................

................

................

Simulatio

V

rogram

................

................

................

................

................

................

................

................

................

................

................

on Progra

ersion: 04-20

m

................

................

................

................

................

................

................

................

................

................

................

am

016

.. 2 

.. 3 

.. 3 

.. 4 

.. 7 

.. 8 

.. 9  11  12  12  13 

1. PASPlig pres volu temp pres para

The ca

Basic k

Programght enablesssures, me, perature asssure and fameters.

lculation is

knowledge

The ASP

m descrs you to ca

s well as flow ratios

s similar to

of the ope

Plight is op

riptionlculate the

of an accu

that done

erating cha

ptimised to

A

2/13

e:

umulator, s

on a pock

aracteristics

use on the

ASP Accu

simply by e

ket calculat

s of hydrau

e smartpho

umulator S

entering a f

tor.

ulic accum

one.

Simulatio

V

few accum

mulators is r

on Progra

ersion: 04-20

mulator

required.

am

016

2. UThe usfunctionthese f

2.1. O

= O

= U

= Ex

= Ex

= C

= N

= R

= In

= R

User inter interfacn and inpuields in mo

Overview

Operating g

nits:

xchange s

xchange d

Calculation

umber pad

Result butto

nformation

Results field

terface e for ASPl

ut fields, asore detail.

w

as:

speed:

direction:

and input

d:

on:

field:

d:

light is divids well as re

parameter

A

3/13

ded into diesult and in

Choand

For

Choisot

Chodisc

rs: ForpreCal

Can

ExaThe

Info

In t

ASP Accu

ifferent fielnformation

oice betwed air

r temperatu

oice betwethermal (sl

oice betwecharge

r accumulassure, voluculation pa

n be used

ample: Cale calculatio

ormation ab

his case, "

umulator S

ds and incfields. This

een N2 (nitr

ure, pressu

een adiabatow) proces

een charge

ator parameume, temparameters

for enterin

culation V0

on paramet

bout press

V0" at Tmin

Simulatio

V

cludes: seles section d

rogen), He

ure and vo

tic (fast) ass

e and

eters sucherature are displa

g values

0

ter V0 is ac

sure/volum

and Tmax

on Progra

ersion: 04-20

ection fielddescribes

e (helium)

lume

nd

as

yed in red

ctivated

e ratio

am

016

ds,

2.2. S

Operat

The "Oaddition

Ha

Units

The ph

Tempe

Pressu

Volume

Click thThe va

The folcalcula

Physic

Tempe[°C, °F

Pressu[bar, p

Volum[L, Ga

Selection

ting gas

Operating gn to the de

Hydraulic aair - Risk o

ysical unit

erature:

re:

e:

he approprlue that is

lowing oveation param

cal units

erature F, K]

ure psi, MPa]

me l (US)]

n fields

as" selectiefault gas t

accumulatoof explosi

s for tempe

Degree

bar, psi

Litres (L

riate buttoninput or ou

erview shometer.

Calculati

Tmax

p2

∆V

ion field alsype (N2) N

ors must oon! If there

erature, pr

es Celsius

i, MPa (Me

L), gallons

n to activatutput will th

ws the rela

ion param

Tmin

p1

A

4/13

so offers thNitrogen. Y

only be chae are varia

ressure an

(°C), Fahre

ega Pasca

s (Gal (US)

te the desirhen be in t

ationship b

meters

T0

p0

V0

ASP Accu

he selectioou can set

arged with ations, plea

d volume c

enheit (°F)

l)

))

red unit. his unit.

between th

p0Tmin

p0Tmax

umulator S

on fields Het the desire

nitrogen. Nase enquire

can be sele

), Kelvin (K

e physical

Simulatio

V

elium (He) ed gas type

Never use e.

ected as fo

K)

unit and th

on Progra

ersion: 04-20

and (Air), e here.

oxygen or

ollows:

he

am

016

in

r

Exchan

Hydrop

Converapplica

Both exquickly

dischar

nge direct

pneumatic

The provat a This

rsely, selecation.

xchange d or slowly;

rge

tion

accumulat

accumulatvide a certacertain timmeans tha

ct charge

irections, bsee Excha

tors are ge

tor must ain amount

me. at it is disc

if the accu

both chargange Spee

A

5/13

enerally use

t of energy

charged.

umulator is

e and disced.

ASP Accu

ed for ene

y/fluid

to be char

charge, can

umulator S

rgy storage

rged in its

n take plac

Simulatio

V

e.

ce c

on Progra

ersion: 04-20

charge

am

016

Exchange

Exchan

Adiaba

With thprocessresults

Isother

With thprocessresults

speed in p-V g

nge speed

atic (= isen

his option, tses. In thisin large ac

rmal chan

his option, tses. In thisin smaller

raph

d

ntropic) ch

the progras case, heaccumulator

nge of stat

the progras case, theaccumula

hange of s

m is basedat exchangr volumes

e = compl

m is basedere is comptor volume

A

6/13

state = no

d on very rge with theor in small

lete heat e

d on very splete heat ees, or large

ASP Accu

In thechanglimitedvalues

heat exch

rapid accume environml ∆V values

exchange

slow accumexchange e ∆V value

umulator S

ermodynamges in stated to the mis for the ca

ange with

mulator chaent is not ps.

with the e

mulator chawith the ens, compara

Simulatio

V

mics, there e for gasesinimum analculation:

h the envir

arging or dpossible. T

environme

arging or dnvironmenatively spe

on Progra

ersion: 04-20

are differes. ASPlighd maximum

ronment

dischargingThis option

ent

ischargingt. This

eaking.

am

016

ent t is m

g

g

2.3. C

The seinput pa

The cacalculathat is m

A value

The fol

Input p

Abbrev

p2

p1

p0

∆V

V0

T0

Tmin

Tmax

p0Tmin

p0Tmax

p2 : p0

V0 : V2

If an after

Calculat

lected areaarameters

lculation pating a hydrmanipulate

e cannot be

The valueIf an inpuchanged

lowing tab

parameter

viation

2

input value for r the p1 have be

ion and

a consists (T0, Tmin a

arametersraulic accued accordin

e calculate

e p0 is sugut value formanually

le shows t

Descript

Maximum

Minimum

Pre-char

Usable v

Effective

Gas pre-

Minimum

Maximum

Pre-char

Pre-char

Pressure

Volume

p0 must be speeen entered.

input pa

of the calcand Tmax).

s, in red disumulator. Tng to the d

ed until all o

ggested aur p0 must bafter the te

he input an

ion

m operatin

m operating

rge pressu

volume

e gas volum

-charge tem

m operating

m operatin

rge pressu

rge pressu

e ratio

ratio

cified, i.e. force

A

7/13

rameters

culation pa

splayed, arThey can bdesired size

other calcu

tomaticallybe specifiedemperatur

nd display

ng pressure

g pressure

ure

me

mperature

g pressure

ng pressure

ure at Tmin

ure at Tmax

ed by the user, it

ASP Accu

s

arameters (

re the inpube thought e.

ulation par

y based ond, i.e. forcere and also

options fo

Inp

Inp

e x

x

x

x

x

x

x

e x

t must be chang

Calculati

Inpu

umulator S

(p2, p1, p0,

t and outpof as a ma

ameters ha

n T0, Tmax aed by the uo after the

r the param

put option

put value

ged manually af

ion parameters

ut parameters

Simulatio

V

∆V, V0) as

ut values rathematica

ave been e

as well as puser, it musp1 have be

meters:

Outp(calcula

x

x

x

x

x

x

x

x

fter the tempera

on Progra

ersion: 04-20

s well as th

required foal equation

entered.

p1. st be een entere

ut value ation possible)

ature and also

am

016

he

or

ed.

Exchange

2.4. N

The nuenterinmouse/

The ressection

direction in the

Number

mber pad g the calcu/touchpad.

sult button n.

PV graph

pad & re

is arrangeulation par.

is also loc

esult but

d like the nameters vi

cated on th

A

8/13

tton

number paia the keyb

he number

ASP Accu

For a diagPV graph

This contaaccumula

ad of a calcboard, they

pad and w

umulator S

gram, see of an accu

ains all thetor calcula

culator. As y can also

will be desc

Simulatio

V

umulator cy

e parameteation.

an alternabe selecte

crited in the

on Progra

ersion: 04-20

ycle.

ers of the

ative to ed using th

e following

am

016

e

g

2.5. I

The labactivatecalcula

Informat

bel on the red (e.g., p2

ator.

ATTENTI

Correct e

Empty pa

tions and

result butto2 =, p1 =, ∆

ION

ntry of all n

arameters a

Activated cain this case

d results

on will cha∆V =, V0 =)

necessary

are not val

alculation param"V0"

A

9/13

s field

nge depen). It is the s

paramete

id

meter,

ASP Accu

nding on thsame as th

rs is requir

umulator S

he calculatie "equals"

red

Rschc

RT

Simulatio

V

ion parame" button on

Result button, inshowing "V0", becalculation parahas been activacalculation

Results field witTmin and Tmax

on Progra

ersion: 04-20

eter a pocket

n this case ecause

ameter "V0" ated for

h "V0" at

am

016

After yoon the

Result

In ordefield (in

Inform

In additan accu

p2 : p0

V0 : V2

p0Tmin and p0Tmax

Pre-ch

ou press thleft and rig

s field

er to select n this case

mation field

tion to the umulator m

= Max. p

= Volum is only The cr In the depen also be This m

= Hydrau prior to pressu

p0Tmin = accum

p0Tmax accum The pr

In

Inharge pressure

he result bght side.

the calculaV0Tmin and

ds

actual resmodel (blad

pressure ra

e ratio y displayedritical state example ading on thee used.

must be agr

ulic accumo commissure at minim

= 79.68 bamulator reac

= 89.92 bmulator reacre-charge p

nformation field:Pressure ratio

nformation field:at Tmin and Tmax

utton, the f

ation paramd V0Tmax), c

ults field, Adder, pisto

atio, in this

when the is when V

above, the e applicatio

reed with H

mulators muioning (p0

mum or ma

ar, which mches 79.68

ar, which mches 89.92pressure c

x

A

10/13

following in

meter to beclick in the

ASPlight pn or diaph

case p2 :

critical conV0 : V2 > 4 :

piston accon, diaphra

HYDAC.

ust be presat T0). Theaximum am

means the p8 bar at an

means the 2 bar at anchanges as

ASP Accu

nformation

e displayedcalculation

rovides imragm accu

p0 = 2.5 : 1

ndition is r: 1 or V0 : V

cumulator wagm accum

ssurised wese valuesmbient tem

pre-charge ambient t

pre-charg ambient t

s the opera

umulator S

and result

d for Tmin an paramete

portant infumulator).

1

eached. V2 > 10 : 1would be remulators co

ith a pre-chindicate th

mperature,

e pressure emperatur

e pressureemperatur

ating tempe

InVAwre

RTtose

Simulatio

V

ts fields ar

and Tmax iner area

formation t

. ecommendould

harge preshe pre-chain this case

of the hydre of 10 °C

e of the hydre of 40 °Cerature cha

nformation fieldVolume ratio Attention, this iswhen the critical eached.

Results field: The label changeo the calculationelected.

on Progra

ersion: 04-20

re displaye

n the result

hat sugges

ded,

ssure arge e:

draulic

draulic . anges.

:

s only displayedcondition is

es according n parameter

am

016

ed

ts

sts

d

3. CCalcula

This se

1. Se

2. De

3. De

4. De

5. En

6. Acpa

7. Pr

8. Reinf

Calculaation in AS

ection desc

elect the g

efine units

efine exch

efine exch

nter known

ctivate desarameter, h

ress result

ead and evformation f

ation proSPlight is s

cribes the c

as type

ange spee

ange direc

n calculatio

sired calcuhere: V0

t button

valuate resfields

ocess imilar to us

calculation

ed

ction

on parame

lation

sult and

A

11/13

sing a pock

n process:

(defa

ters

(p0 is

(labe

ASP Accu

ket calcula

ault setting is ado

s suggested auto

el can vary accord

umulator S

ator.

opted)

omatcally by the

ding to calculation

Simulatio

V

program based

parameter select

on Progra

ersion: 04-20

on T and p1)

ted)

am

016

4. E

4.1. T

Situati

A consThe mia maximand 60

Task

Accu

Solutio

V0 a

V0 a

Additio

p2 : p

p0 at

p0 at

Evalua

Becausused. Hpiston a

Exampl

Task to c

on

umer requnimum premum of 35 °C.

umulator n

on method

t Tmin =

t Tmax =

nal informa

p0 =

t Tmin =

t Tmax =

ation

se the presHowever, baccumulat

le task

calculate

uires 2.5 litressure mus50 bar. The

ominal vol

d

= 19.33 l

= 12.89 l

ation:

= 2.8 : 1

= 124.71 ba

= 161.45 ba

ssure ratio because thor is recom

e V0

res of hydrst not fall be accumula

ume = V0

ar

ar

is 2.8 : 1, he V0 resultmmended.

A

12/13

raulic fluid below 180 ator is pre-

bladder, pt is betwee

ASP Accu

within a vebar. The p

-charged a

piston and den 12.89 a

umulator S

ery short tipump chargt 20 °C and

diaphragmnd 19.33 li

Simulatio

V

me. ges the acd works be

m accumulaitres, a bla

on Progra

ersion: 04-20

cumulator etween 0 °

ators can bdder or

am

016

to C

be

4.2. T

Situati

A 10 litdischar

Task

Wha

Solutio

p1 at

p1 at

Additio

p

p0 at

p0 at

V

The adE.g., if The pis

Task to c

on

tres piston rged. The i

at is the pre

on

t Tmin =

t Tmax =

nal informa

p2 : p0 =

t Tmin =

t Tmax =

V0 : V2 >

ditional infselected a

ston accum

calculate

accumulatinitial press

essure p1 w

= 187.81 ba

= 256.52 ba

ation:

= 10.5 : 1

= 95.54 ba

= 113.34 ba

> 4 : 1

formation ia bladder amulator ist t

e p1

tor is dischsure is 100

when the a

ar

ar

ar

ar

s used to saccumulatothe right ch

A

13/13

harged with00 bar. The

accumulato

select the sor the presshoice in th

ASP Accu

hin 2 secone pre-charg

or is discha

suitable acsure ratio ois example

umulator S

nds. 1 litre ge pressur

arged at 0

ccumulatorof 4 : 1 mue task.

Simulatio

V

e of hydraure is 100 b

°C and als

r types. usst not be

on Progra

ersion: 04-20

lic fluid is bar at 10 °C

so at 40 °C

exceeded

am

016

C.

C?

d.