Paper 2 heat retention modelling _IJHMT_no colour.pdf (1.7 MB)
Heat retention analysis with thermal encapsulation of powertrain under natural soak environment
journal contribution
posted on 2019-10-29, 09:45 authored by Ruoyang Yuan, N. Dutta, S. Sivasankaran, W. Jansen, Kambiz EbrahimiKambiz EbrahimiThis paper investigates high fatality modelling of vehicle heat transfer process during natural soak environment and heat retention benefits with powertrain encapsulations. A coupled computer-aided-engineering (CAE) method utilising 3D computational-fluids-dynamics (CFD) and transient thermal modelling was applied to solve buoyancy-driven convection, thermal radiation and conduction heat transfer of vehicle structure and fluids within. Two vehicle models with different encapsulation layouts were studied. One has engine-mounted-encapsulation (EME) and the other has additional vehicle-mounted-encapsulation (VME). Coupled transient heat transfer simulations were carried out for the two vehicle models to simulate their cool-down behaviours of 9 h static soak. The key fluids temperatures’ cool-down trajectories were obtained and correlated well with vehicle test data. Increased end temperatures were seen for both coolant and oils of the VME model. This provides potential benefits towards CO2 emissions reduction and fuel savings. The air paths and thermal leakages with both encapsulations were visualised. Reduced leakage pathways were found in the VME design in comparison with the EME design. This demonstrated the capability of embedded CAE encapsulation heat retention modelling for evaluating encapsulation designs to reduce fuel consumption and emissions in a timely and robust manner, aiding the development of low-carbon transport technologies.
Funding
Innovate UK and the Advanced Propulsion Centre (APC)
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
- Mechanical, Electrical and Manufacturing Engineering
Department
- Aeronautical and Automotive Engineering
Published in
International Journal of Heat and Mass TransferVolume
147Issue
February 2020Publisher
ElsevierVersion
- AM (Accepted Manuscript)
Rights holder
© ElsevierPublisher statement
This paper was accepted for publication in the journal International Journal of Heat and Mass Transfer and the definitive published version is available at https://doi.org/10.1016/j.ijheatmasstransfer.2019.118940.Acceptance date
2019-10-22Publication date
2019-10-28Copyright date
2019ISSN
0017-9310Publisher version
Language
- en
Depositor
Ruoyang Yuan. Deposit date: 28 October 2019Article number
118940Usage metrics
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