Opened 6 years ago
#5371 new defect
Heat Exchanger Model works & simulates but doesn't actually transfer energy to raise outlet temperature
| Reported by: | KieranF <kieran.fung@…> | Owned by: | lochel |
|---|---|---|---|
| Priority: | high | Milestone: | Future |
| Component: | OMSimulator | Version: | v1.13.0 |
| Keywords: | HE, results, simulation, FlueGas, Water, ThermoPower | Cc: | kieran.fung@… |
Description
In order to properly model a Rankine Power Cycle correctly I have started to disassemble the system into its respected components in an attempt to learn more about each component model and how they work individually. The model built was completed using the ThermoPower library.
I built a simple Heat Exchanger model with FlueGas as the working fluid to heat up water. The FlueGas is coming in at a rate of 400 [kg/s] at a temperature of 700 [K] / 426.85 [C].
Within the simulation I am able to see that the FlueGas temperature drops from 426.85 [C] down to 26.85 [C], however looking at the water results, it does not increase in temperature at all. The inlet and outlet temperature values are at a constant 25 [C].
To make matters more confusing I incorporated "Gas Temperature Sensors", located ThermoPower.Gas.SensT, in between the inlet and outlet of both fluids in order to also observe how temperature changes with the use of a heat exchanger. This resulted in some very confusing results.
The gas temperature at the outlet is observed to increase linearly which does not make sense as a working fluid. However the outlet temperature of the water does increase linearly which is about the only sanity check that does make sense in an instance of (1) [sec]. Although the time instance is yet another point of confusion for myself, for it was set to 30 [sec] but only simulated until 1 [sec].
Please feel free to leave a comment if you have any advice or insight you can provide me, its much appreciated. Thanks!
Heat Exchanger Working Model