Ideal Pump - MapleSim Help
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Ideal Pump

Model of an ideal pump

 

Description

Equations

Variables

Connections

Parameters

Modelica Standard Library

Description

The Ideal Pump component is a two-port thermal-fluid component that models an ideal (lossless) pump driven by a rotational flange. The temperature and enthalpy of the medium are not changed.

The Medium parameter specifies the name of a Thermal-Fluid Media record, which must be in the model at the same or higer level.

The Use default medium boolean parameter, when true, sets the name of the Medium parameter to fluidMedium1, which corresponds to the default name of a fluid medium record. To use a different name, uncheck the box and enter the name in the parameter input that appears.

Equations

{Δp&equals;0&comma;τa&equals;0w<smallΔp&equals;Δpmaxsignwwnomwwnom21VflowVflowmaxwnomw&comma;τaw&equals;ΔpVflowotherwise

Qflow&equals;0

Tq&equals;T

h&equals;cpT

Variables

Name

Units

Description

Modelica ID

Δp

Pa

Pressure drop a->b

dp

Qflow

W

Heat exchange with ambient

Q_flow

ΔT

K

Temperature increase of coolant in flow direction

dT

T

K

Outlet temperature of medium

T

Ta

K

Temperature at flowPort_a

T_a

Tb

K

Temperature at flowPort_b

T_b

Vflow

m3s

Volume flow a->b

V_flow

w

rads

Angular velocity of flange

w

Connections

Name

Description

Modelica ID

flowPorta

Thermal-Fluid FlowPort

flowPort_a

flowPortb

Thermal-Fluid FlowPort

flowPort_b

flangea

HeatPort

flange_a

Parameters

Name

Default

Units

Description

Modelica ID

medium

fluidMedium

 

Thermal-Fluid Media

medium

m

1

kg

Mass of medium

m

fix T0

false

 

True (checked) means T0 is enforced, otherwise it is a guess

T0fixed

T0

293.15

K

Initial temperature of medium

T0

Δpmax

2

Pa

Maximum pressure at Vflow&equals;0

dp0

wnom

1

rads

Nominal speed

wNominal

Vflowmax

2

m3s

Maximum volume flow rate at Δp&equals;0

V_flow0

Modelica Standard Library

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

Thermal Overview

Thermal Sources