Recycle (MF)#

The Recycle (MF) block allows modeling iterative cycles in process flow diagrams where the output flow is directed back into the apparatus, for example:

Reverse flow in rectification;
Solvent recycling in absorption.

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)#\[\phi_1 + \phi_2=0\]

where:

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

\(\phi_2\) – output energy flow, [W].

1. Properties#

Property	Default Value	Description	Units of measurement
Tolerance	1.0E-6	-	-
Initial temperature	20.0	-	°C
Initial pressure	101325.0	-	Pa
Initial mass flow rate	2.0	-	kg/s
Configuration of the thermodynamic system: SRK (Soave-Redlich-Kwong) equation of state; Electrolyte CPA (Electrolyte Cubic-Plus-Association) equation of state; GERG-2004 equation of state; NRTL (Non-random two liquid) equation of state; PR (Peng-Robinson) equation of state; SRK (Soave-Redlich-Kwong) CPA (Cubic-Plus-Association) equation of state; UNIFAC (Universal functional-group activity coefficient) equation of state	SRK (Soave-Redlich-Kwong) equation of state	-	-
Components	Water: 1.0	By clicking on the name of the default component - Water you can select the required components from the list and set their required quantity [mol]	-

2. Inputs and outputs#

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