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Innovative High-Induction Air Diffuser for Enhanced Air Mixing in Vehicles and Personalized Ventilation Applications

Author

Listed:
  • Florin Ioan Bode

    (Mechanical Engineering Department, Faculty of Automotive, Mechatronics and Mechanics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca, Romania
    Advanced Research Center for Ambiental Quality and Building Physics (CAMBI) Research Center, Technical University of Civil Engineering Bucharest, 020396 Bucharest, Romania)

  • Titus Otniel Joldos

    (Mechanical Engineering Department, Faculty of Automotive, Mechatronics and Mechanics, Technical University of Cluj-Napoca, 400641 Cluj-Napoca, Romania
    Ruck Ventilatoare, 545600 Tarnaveni, Romania)

  • Gabriel Mihai Sirbu

    (Renault Technologie Roumanie, Group Renault Romania, 062204 Bucharest, Romania)

  • Paul Danca

    (Advanced Research Center for Ambiental Quality and Building Physics (CAMBI) Research Center, Technical University of Civil Engineering Bucharest, 020396 Bucharest, Romania
    National Institute for R&D in Electric, Engineering ICPE-CA, 030138 Bucharest, Romania)

  • Costin Cosoiu

    (Aerodynamics and Wind Engineering Laboratory “Constantin Iamandi” (LAIV), Technical University of Civil Engineering Bucharest, 020396 Bucharest, Romania)

  • Ilinca Nastase

    (Advanced Research Center for Ambiental Quality and Building Physics (CAMBI) Research Center, Technical University of Civil Engineering Bucharest, 020396 Bucharest, Romania)

Abstract

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 m 3 /h, the total air entrainment rate at 0.6 m for the standard air diffuser is 73.36 m 3 /h, while for the innovative air diffuser, it is 109.26 m 3 /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.

Suggested Citation

  • Florin Ioan Bode & Titus Otniel Joldos & Gabriel Mihai Sirbu & Paul Danca & Costin Cosoiu & Ilinca Nastase, 2024. "Innovative High-Induction Air Diffuser for Enhanced Air Mixing in Vehicles and Personalized Ventilation Applications," Energies, MDPI, vol. 17(12), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:12:p:2930-:d:1414964
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    References listed on IDEAS

    as
    1. Xianglin Wang & Qian Yang & Yingni Zhai & Haobo Niu & Xinta Wang, 2023. "Effects of Vehicle Air Temperature on Drivers’ Cognitive Abilities Based on EEG," Sustainability, MDPI, vol. 15(2), pages 1-19, January.
    2. Katarzyna Ratajczak & Łukasz Amanowicz & Katarzyna Pałaszyńska & Filip Pawlak & Joanna Sinacka, 2023. "Recent Achievements in Research on Thermal Comfort and Ventilation in the Aspect of Providing People with Appropriate Conditions in Different Types of Buildings—Semi-Systematic Review," Energies, MDPI, vol. 16(17), pages 1-55, August.
    Full references (including those not matched with items on IDEAS)

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