This package contains very simple-to-use components to model
coolant flows as needed to simulate cooling e.g., of electric
machines:
- Components: components like different types of pipe models
- Examples: some test examples
- Interfaces: definition of connectors and partial models
(containing the core thermodynamic equations)
- Media: definition of media properties
- Sensors: various sensors for pressure, temperature, volume and
enthalpy flow
- Sources: various flow sources
Variables used in connectors:
- Pressure p
- flow MassFlowRate m_flow
- SpecificEnthalpy h
- flow EnthalpyFlowRate H_flow
EnthalpyFlowRate means the Enthalpy = cpconstant * m
* T that is carried by the medium's flow.
Limitations and assumptions:
- Splitting and mixing of coolant flows (media with the same cp)
is possible.
- Reversing the direction of flow is possible.
- The medium is considered to be incompressible.
- No mixtures of media is taken into consideration.
- The medium may not change its phase.
- Medium properties are kept constant.
- Pressure changes are only due to pressure drop and geodetic
height difference rho*g*h (if h > 0).
- A user-defined part (0..1) of the friction losses (V_flow*dp)
are fed to the medium.
- Note: Connected flowPorts have the same
temperature (mixing temperature)!
Since mixing may occur, the outlet temperature may be different
from the connector's temperature.
Outlet temperature is defined by variable T of the corresponding
component.
Copyright © 1998-2020, Modelica Association and contributors
Contents
Name |
Description |
UsersGuide |
User's Guide |
Examples |
Examples that demonstrate the usage of the FluidHeatFlow
components |
Components |
Basic components (pipes, valves) |
Media |
Medium properties |
Sensors |
Ideal sensors to measure port properties |
Sources |
Ideal fluid sources, e.g., ambient, volume flow |
Interfaces |
Connectors and partial models |
BaseClasses |
Base classes of FluidHeatFlow models |
Generated at 2020-06-05T21:39:08Z by OpenModelica 1.16.0~dev-442-g2e5bc9f