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CRYOLIB.Pump


COMPONENT Pump IS_A AbsPump

ICON:


DESCRIPTION:
Pump model. The dimensionless pump performances cover all zones of speed and flow

CONSTRUCTION PARAMETERS:
NAME  TYPE  DEFAULT  DESCRIPTION  UNITS  
rpm_op ENUM Rpm_option Dynamic Option to specify fixed or calculated RPM  

PORTS:
NAME  TYPE  PARAMETERS  DIRECTION  CARDINALITY  DESCRIPTION  
f_in fluid  IN    
f_out fluid  OUT    
sh_in PORTS_LIB.mech_rot  IN   Shaft inlet port 

DATA:
NAME  TYPE  DEFAULT  RANGE  DESCRIPTION  UNITS  
D REAL  0.1  Outlet diameter m 
I REAL  1  Pump inertia kg/m^2 
Ns REAL  25  Pump specific speed Hz 
Po REAL  1  Initial pressure bar 
Q_r REAL  0.1  Volume flow at rated conditions m^3/s 
To REAL  300  Initial temperature K 
User_Curves BOOLEAN   FALSE   If you want to use your own curves,you have to set this parameter to TRUE  
eff_r REAL  0.84  Efficiency at rated conditions - 
mat ENUM THERMAL.Material SS_304  Wall material  
rpm_o REAL  3000  Initial or constat pump speed r/min 
rpm_r REAL  3000  Pump speed at rated conditions r/min 
tdh_r REAL  50  Total dynamic head at rated conditions m 
thw REAL  0.01  Wall thickness m 
wbeta_vs_theta TABLE_1D    Dimensionless curves defined by the user  
wh_vs_theta TABLE_1D    Dimensionless curves defined by the user  

DECLS:
NAME  TYPE  INITIAL  RANGE  DESCRIPTION  UNITS  
Aout REAL    Area at the outlet of the pump m^2 
beta REAL    Adimensional torque - 
ha REAL    Adimensional tdh - 
m REAL    Massflow kg/s 
n REAL    Adimensional speed - 
rho REAL    Density kg/m^3 
tdh REAL    Total dynamic head m 
theta REAL    PI + atan2(v, n) - 
torque REAL    Pump torque  N�m 
torque_r REAL    Pump torque at rated conditions N�m 
v REAL    Adimensional volume flow - 
wbeta_vs_theta_Ns CONST TABLE_2D    Table of adimensional torque (T/Tr) / ((Q/Qr)**2 + (N/Nr)**2) vs theta T/Tr) / ((Q/Qr)**2 + (N/Nr)**2) vs 
wh_vs_theta_Ns CONST TABLE_2D    Table of adimensional head (H/Hr) / ((Q/Qr)**2 + (N/Nr)**2) vs theta H/Hr) / ((Q/Qr)**2 + (N/Nr)**2) vs 
FORMULATION:



ABS_Pump formulation:

 

The ABS_Pump is a topologic component built with a Volume component receiving the head and the mechanical work produced in the mobile parts, and a Junction simulating the outlet.

The equations used to calculate the pressure drop and the mechanical work assumed to be applied to the inlet of the pump volume are described in the components that inherit from this abstract component.

 







Document generated automatically with EcosimPro Version: 5.4.14 Date: 2015:02:02 Time: 12:52:59