e-Fan a Key Enabler for E-Mobility
Title: e-Fan a Key Enabler for E-Mobility
SNIC Project: SNIC 2020/13-103
Project Type: SNIC Small Compute
Principal Investigator: Debarshee Ghosh <ghoshd@chalmers.se>
Affiliation: Chalmers tekniska högskola
Duration: 2020-11-10 – 2021-12-01
Classification: 20301


The objective is to study the impact of generic disturbances on eFan (electric fans) performance by means of simulations and tests. Simulation methodologies will be improved. Guidelines for robust aerodynamic fan operation and for multi-fan concepts will be created. This is motivated because eFan plays a key role providing required cooling for a number of crucial functions such as low temperature circuit for battery cooling, densely packed under- hood hybrid powertrain cooling, downhill brake power cooling of heavy trucks and fast charging cooling of batteries. eFans are also important enablers for electromobility and thereby contribute to CO2 reduction. In addition, improved eFan efficacy saves energy. In this project, simulation methodologies will be improved/developed. The correlation between the fan aerodynamic and its performance and efficiency will be studied and quantified for stand-alone fan and for fan exposed to generic disturbances in the under-hood region. Guidelines for efficiency improvement of high performance eFans and multi-fans will be extracted from these studies and the energy saving will be quantified. Access to such simulation methodologies is crucial for obtaining high performance and efficiency, operation robustness and low noise level.