Pump (MF)#

The Pump (MF) block simulates the operation of a pump according to specified characteristics.

Law of conservation of mass (1) :

(1)#\[\dot m_1+\dot m_2=0\]

where:

\(\dot m_1\) – mass flow rate of the medium at the inlet, [kg/s];

\(\dot m_2\) – mass flow rate of the medium at the outlet, [kg/s].

Law of conservation of energy (2) :

(2)#\[\phi_1 + \phi_2 + P_{гидр}=0\]

where:

\(\phi_1\) – energy flow at the input, [W];

\(\phi_2\) – output energy flow, [W];

\(P_{гидр}=\frac{\dot m \cdot \Delta h_{из}}{\eta}\);

\(\dot m\) – mass flow rate of the medium, [kg/s];

\(\Delta h_{iz}\) – isentropic increase in enthalpy [J/kg];

\(\eta\) – Efficiency.

Calculation of pump head (3) :

(3)#\[H=\frac{\Delta P}{\rho \cdot g}\]

where:

\(\Delta P\) – pressure increase, [Pa];

\(g\) – acceleration of gravity, [m/s\(^2\)];

\(\rho\) – density of the medium, [kg/m\(^3\)].

1. Properties#

Property	Default Value	Description	Units of measurement
Pump speed	1000.0	-	rev/min
Pump speed curve	1000.0;1500.0;2000.0;	-	rev/min
Pump flow rate curves	<10.0;20.0;30.0;40.0;50.0;60.0> <15.0;30.0;45.0;60.0;75.0;90.0> <20.0;40.0;60.0;80.0;100.0;120.0>	-	m\(^3\)/h
Pump head curves	<120.0;118.0;115.0;110.0;103.0;94.0> <270.0;265.5;258.8;247.5;231.8;211.5> <480.0;472.0;460.0;440.0;412.0;376.0>	-	m
Pump efficiency curves	<65.0;72.0;78.0;82.0;80.0;74.0> <66.0;73.0;79.0;83.0;81.0;75.0> <67.0;74.0;80.0;84.0;82.0;76.0>	-	%
Reference density	998.0	-	kg/m\(^3\)

Parameters	Input/Output	Description	Units of measurement	Port type
Input	Input	-	-	Multicomponent fluid
Output	Output	-	-	Multicomponent fluid

In order to see the connection capabilities of the block, you need to go to page Description of block ports