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Numerical and experimental investigation on symmetrical cross jet of localized air conditioning system with thermoelectric cooling devices in commercial vehicles.

Author(s) : WAN Q. S., SU J., HUANG Y. Y., WANG Y., LIU X.

Type of article: IJR article

Summary

The localized air conditioning (LAC) system focuses on the micro environment around the human body, avoiding the energy waste of cooling the entire compartment. The application of small and flexible thermoelectric cooling devices (TEDs) provides more possibilities for automotive LAC, but also increase the collision and convergence of airflow at the same time. Therefore, the impact of symmetrical cross jet collision on the thermal environment in the cab has been analyzed through numerical simulation and experimental methods. The results show that the velocity and temperature of the dual jets in the merging zone have better uniformity. The human body also has better comfort under the environment constructed by the jets in this special state. The optimized jet collision angle is given to match the distance between the different air outlets and the human body in the thermal environment constructed by the localized air conditioner to achieve the best cooling effect. Real vehicle experiments and subjective evaluation of human comfort have been done to verify the cooling effect of the localized air conditioning system.

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Pages: 29-38

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Details

  • Original title: Numerical and experimental investigation on symmetrical cross jet of localized air conditioning system with thermoelectric cooling devices in commercial vehicles.
  • Record ID : 30029942
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 140
  • Publication date: 2022/08
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.05.004
  • Document available for consultation in the library of the IIR headquarters only.

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