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MapleSim Hydraulics Library from Modelon

Oil Volume  Lumped volume with pressure-dependent bulk modulus

 

Equations

Variables

Connections

Parameters

Equations

β=βoilpabs,T,vair=vgasoil,psat=psat

ρ=ρoilp=pabs,T=T,vair=vgasoil,psat=psat

T=T0oil+ΔTsystem

pabs=pA+patmoil

tpA=βmflowAVρ

Variables

Name

Value

Units

Description

Modelica ID

saturation

[1]

 

Saturation value in HSV color space

saturation

β

 

Pa

Bulk modulus of oil

beta

pabs

 

Pa

Absolute pressure, used for all property calls

p_abs

oilWarnings

 

 

 

oilWarnings

pressureSensor

 

 

 

pressureSensor

T

 

K

Local temperature

T

pAsummary

pA

Pa

Pressure at port A

summary_pA

Tsummary

T

K

Local temperature

summary_T

βsummary

β

Pa

Bulk modulus of oil

summary_beta

ρsummary

ρ

kgm3

Density

summary_rho

ρ

 

kgm3

Density

rho

psat

[2]

Pa

Gas saturation pressure

p_sat

[1] max0,minpA,pmaxcolorpmincolorpmaxcolorpmincolor

[2] oil.gasSaturationPressureT=T,vgas=oil.v_gas

Connections

Name

Description

Modelica ID

portA

Hydraulic port where oil enters the component

port_A

oil

 

oil

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

steady-state init

false

 

Steady state initialization

steadyStateInit

volume

10-6

m3

volume

volume

ΔTsystem

0

K

Temperature offset from system temperature

dT_system

See Also

Volumes

MapleSim Hydraulics Library from Modelon Overview

 


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