modelPitchedBladeImpeller

stirrer model of a pitched blade Impeller

Extends from TransiEnt.Basics.Icons.Model (Icon for models).

Information

1. Purpose of model

Model of a pitched blade impeller for the CSTR

2. Level of detail, physical effects considered, and physical insight

(Description)

3. Limits of validity

(Description)

4. Interfaces

(none)

5. Nomenclature

(no elements)

6. Governing Equations

(no equations)

7. Remarks for Usage

(none)

8. Validation

(no validation or testing necessary)

9. References

[1] L. Andresen, P. Dubucq, R. Peniche, G. Ackermann, A. Kather, and G. Schmitz, “Status of the TransiEnt Library: Transient simulation of coupled energy networks with high share of renewable energy,” in Proceedings of the 11th International Modelica Conference, 2015, pp. 695–705.

10. Version History

Model created by Philipp Jahneke (philipp.koziol@tuhh.de), August 2018

Parameters

Type	Name	Default	Description
Real	k_s	11	proportionality constant of shear Rate to speed of rotation
SI.Diameter	d		diameter of agitator/impeller
SI.Diameter	D		diameter of StirredTankReactor
SI.Frequency	n		stirring speed as revelutions per second
SI.Height	h		height of impeller blade
Integer	Z		number of blades
SI.Angle	alpha	Const.pi/4	pitch angle of blades
Boolean	useBaffles	false	true if baffles are used to redirect flow
SI.Length	b_S		baffle width

Components

Type	Name	Description
TransiEnt.SimCenter	simCenter
SI.Density	rho	input for density of the medium
SI.DynamicViscosity	eta	input for efficiency of impeller
SI.ReynoldsNumber	Re	Reynolds number in a Stirred Tank
Real	Ne	Newton or Power number
SI.FroudeNumber	Fr	Froude number
SI.Power	P	Power demand of stirring
SI.Frequency	gamma	shear rate
Real	C1	geometrical coefficient in Nusselt-Equation
Real	C2	geometrical coefficient in Nusselt-Equation

Name	Description
PitchedBladeImpeller_Ne
PitchedBladeImpeller_C1
PitchedBladeImpeller_C2