Thermal cabin model development for interior climate simulations: A co-simulation approach using GT-SUITE and TAITHERM
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Applied mechanics (MPAME), MSc
Sustainable energy systems (MPSES), MSc
Sustainable energy systems (MPSES), MSc
Publicerad
2023
Författare
Gnanasundaram, Karthikeyan
Muralidharan, Harikrishnan
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
With the increased focus on electric vehicles, decreasing the energy consumption of
the climate system is becoming increasingly important. In order to achieve that, a
thermal model of the car cabin that can predict the temperature at different zones
in the cabin accurately is highly desired. The model should be able to predict the
cabin temperature for different ambient conditions as well as different HVAC conditions.
The thesis focuses on developing such a model and analysing the results by comparing
them with experimental data. A co-simulation methodology developed by
Gamma Technology was used where the fluid domain in the cabin was solved by GTSuite
and the temperature of the cabin wall structures was solved by TAITherm.
These models exchange data at prescribed communication intervals so that the thermal
features in the cabin can be captured accurately. The model needed to be calibrated
against experimental data by using a Heat Transfer Coefficient Multiplier
(HTCM). To increase the accuracy of the solution and to eliminate the need for
calibration, an extension of this method where CFD data from steady-state simulations
carried out in Star CCM+ were mapped onto the co-simulation model. The
results from both methods were compared with the experimental data and have
been discussed in detail in this thesis.
Beskrivning
Ämne/nyckelord
cabin model , co-simulation , CFD , climate system , HVAC , heat transfer , GT-Suite , TAITherm , Star CCM+