In order to evaluate the ventilation characteristics of car interior, a model experiment was performed. Part 1 deals with the air flow properties in a half-scale car model. In this paper, a trace gas experimental method equipped with Flame Ionization Detector (FID) systems is introduced to examine the local ventilation efficiency and inhaled air quality in the car, which was ventilated at a flow rate of 100 m3/h and kept in an isothermal environment of 28°C in the experiment. Here, ventilation efficiency was evaluated by means of the Scales for Ventilation Efficiencies (SVEs), and inhaled air quality in terms of the influences of passive smoke and foot odor was evaluated by means of the Contribution Ratio of Pollution source 1 (CRP1). Therefore, calculation methods using trace gas concentration values were suggested for these indices, which were proposed based on the Computational Fluid Dynamics (CFD) technique. The experimental method will be validated by comparison with the corresponding CFD simulation results. This indicates that the experimental method is precise enough to predict air quality in a car cabin.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Ventilation Characteristics of Modeled Compact Car Part 2 Estimation of Local Ventilation Efficiency and Inhaled Air Quality


    Additional title:

    Sae International Journal of Passenger Cars. Mechanical Systems
    Sae Int. J. Passeng. Cars – Mech. Syst


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2008



    Publication date :

    2008-04-14


    Size :

    8 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Ventilation characteristics of modeled compact car part 1 - airflow velocity measurement with PIV

    Nagano,H. / Kato,S. / Zhu,S. et al. | Automotive engineering | 2008


    Ventilation Characteristics of Modeled Compact Car Part 1 Airflow Velocity Measurement with PIV

    Nomura, Eiji / Nagano, Hideaki / Yang, Jeong-Hoon et al. | SAE Technical Papers | 2008


    Ventilation Characteristics of Modeled Compact Car Part 5 - Scaled Model Experiment for Heat Transfer Characteristics

    Nagano, Hideaki / Iwase, Hironao / Doi, Hisafumi et al. | SAE Technical Papers | 2012