Ideal Pump
Model of an ideal pump
Description
Equations
Variables
Connections
Parameters
Modelica Standard Library
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.
{Δp=0,τa=0w<smallΔp=−Δpmax⁢sign⁡wwnom⁢wwnom2⁢1−VflowVflowmax⁢wnomw,τa⁢w=−Δp⁢Vflowotherwise
Qflow=0
Tq=T
h=cp⁢T
Name
Units
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
Outlet temperature of medium
Ta
Temperature at flowPort_a
T_a
Tb
Temperature at flowPort_b
T_b
Vflow
m3s
Volume flow a->b
V_flow
w
rads
Angular velocity of flange
flowPorta
Thermal-Fluid FlowPort
flowPort_a
flowPortb
flowPort_b
flangea
HeatPort
flange_a
Default
medium
fluidMedium
Thermal-Fluid Media
m
1
kg
Mass of medium
fix T0
false
True (checked) means T0 is enforced, otherwise it is a guess
T0fixed
T0
293.15
Initial temperature of medium
Δpmax
2
Maximum pressure at Vflow=0
dp0
wnom
Nominal speed
wNominal
Vflowmax
Maximum volume flow rate at Δp=0
V_flow0
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
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