Base class for heat transfer correlation in terms of Nusselt number
This is a base class for a heat transfer model usable for inner
and outer heat transfer. It is located between a vector of thermal
ports on the other hand and on a (vector of) fluid flow(s) on the
other hand. In a derived class you have to specify
- Nusselt numbers Nu[numberOfNodes] OR heat transfer coefficients
alpha[numberOfNodes] for each thermal port
- heatingSurfaceFactor (factor for A_h because of fins or
s.th.)
- Psi (factor for ACrossFlow because of internals)
At the composing level, you have to specify the fluid flow
properties:
- fluid temperatures (input T[ns])
- fluid states [ns]
- fluid mass flow rates [ns]
as well as the thermal ports [numberOfNodes].
As a result, you can use the heat flow rate
Q_flow[numberOfNodes], which leaves the fluid, and the
thermalPort.Q_flow[numberOfNodes], which enters the fluid ports.
The difference is due to the heatloss to ambient.
| Author: |
Kilian Link |
SCD |
| Checked by: |
|
| Protection class: |
|
| Used Dymola version: |
|
Copyright © 2007 Siemens AG, PG EIP12. All rights reserved.
This model is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY. For details see disclaimer
- June 2007 by Haiko Steuer
Generated at 2026-04-15T18:18:36Z by OpenModelicaOpenModelica 1.26.3 using
GenerateDoc.mos
.SiemensPower.Utilities.HeatTransfer.HeatTransferBaseClass