Gabriel Mihai Sirbu

Dr. Gabriel Mihai Sirbu

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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 September 2020 in Energies
Verified
Journal Article
Open access
PDF file
ADAnatole Desreveaux
Anatole Desreveaux
ABAlain Bouscayrol
Alain Bouscayrol
ECElodie Castex
Elodie Castex
Rochdi TriguiRochdi Trigui
Rochdi Trigui
EHEric Hittinger
Eric Hittinger
GSGabriel Mihai Sirbu
Gabriel Mihai Sirbu
The energy consumption of an electric vehicle is primarily due to the traction subsystem and the comfort subsystem. For a regular trip, the traction energy can be relatively constant but the comfort energy has variation depending on seasonal temperatures. In order to plan the annual charging operation of an eco-campus, a simulation tool is developed for an accurate determination of the consumption of an electric vehicle throughout year. The developed model has been validated by comparison with experimental measurement of a real vehicle on a real driving cycle. Different commuting trips are analyzed over a complete year. For the considered city in France (Lille), the comfort energy consumption has an overconsumption up to 33% in winter due to heating, and only 15% in summer due to air conditioning. The urban commuting driving cycle is more affected by the comfort subsystem than extra-urban trips.

14 June 2024 in Energies
Verified
Journal Article
Open access
PDF file
Florin Ioan BodeFlorin Ioan Bode
Florin Ioan Bode
TJTitus Otniel Joldos
Titus Otniel Joldos
GSGabriel Mihai Sirbu
Gabriel Mihai Sirbu
PDPaul Alexandru Danca
Paul Alexandru Danca
CCCostin Ioan Cosoiu
Costin Ioan Cosoiu
Ilinca NASTASEIlinca NASTASE
Ilinca NASTASE
Thermal comfort is very important for the well-being and safety of vehicle occupants, as discomfort can elevate stress, leading to distracted attention and slower reaction times. This creates a riskier driving environment. Addressing this, high-induction air diffusers emerge as a significant innovation, enhancing indoor environmental quality (IEQ) by efficiently mixing cool air from the heating ventilation and air conditioning (HVAC) system with the cabin’s ambient air. This process ensures uniform airflow, diminishes temperature discrepancies, prevents draft sensations, and boosts overall air quality by improving air circulation. In addition to enhancing thermal comfort in vehicles, the novel air diffuser also offers significant potential for personalized ventilation systems, allowing for individualized control over airflow and temperature, thereby catering to the specific comfort needs of each occupant. This study introduces a novel air diffuser that demonstrates a 48% improvement in air entrainment compared to traditional diffusers, verified through Ansys Fluent simulations and laser Doppler velocimetry (LDV) measurements. At a fresh airflow rate of 31.79 m3/h, the total air entrainment rate at 0.6 m for the standard air diffuser is 73.36 m3/h, while for the innovative air diffuser, it is 109.26 m3/h. This solution has the potential to increase the level of thermal comfort and air quality within vehicles, and also signals potential applications across various enclosed spaces, underscoring its importance in advancing automotive safety and environmental standards.