Tabulated pump (TPF)#

The Tabulated pump (TPF) block describes the operation of a pump according to a given Q-H characteristic in a two-phase hydraulic network.

Law of Conservation of Mass (1) :

(1)#\[\dot m_A + \dot m_B=0\]

where:

\(\dot m_A\) – mass flow rate at the input, [kg/s];

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

Law of conservation of energy (2) :

(2)#\[\phi_A + \phi_B + \phi_{раб}= 0\]

where:

\(\phi_A\) - energy flow at the input, [W];

\(\phi_B\) - energy flow at the output, [W].

\(\phi_{rab}\) – power transferred to the environment, [W]. (3) :

(3)#\[\phi_{раб}=\frac{\dot m_A \cdot \Delta p}{\rho}\]

where:

\(\Delta p\) - pressure drop across the pump, [Pa];

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

If the mode without taking into account the pump operation is selected - \(\phi_{rab}=0\).

Differential pressure (4) :

(4)#\[\Delta p =\Delta H_{ref}(q) \cdot \rho \cdot g\]

where:

\(\Delta H_{ref}\) – pump pressure (determined by linear interpolation of the volumetric flow rate and pressure vectors), [m];

\(g\) – acceleration due to gravity, [m/s\(^2\)].

1. Properties#

Property	Default Value	Description	Units of measurement
Power added	On	-	-
Ports area	0.1	-	m\(^2\)
Reference head vector	50.0;47.5;45.0;40.0;35.0;25.0;	-	m
Capacity vector	16.67;30.0;40.0;53.33;66.67;83.33;	-	l/min

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

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