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Experimental study on the effect of air outflow parameters of a wall-mounted air conditioner on the indoor thermal environment.

Author(s) : LAI Y. H., ZHANG J. G., GUO L., et al.

Summary

The thermal characteristics and indoor thermal comfort of a room with a wall-mounted air conditioner have been studied under series of parameters of air outflow, such as the angle and speed of the air outflow during refrigeration. The distribution of the temperature was detected by a self-made temperature acquisition system. The experimental results show that the temperature field is greatly affected by the angle and speed of the air outflow. According to the experiments data, when air outflow angle is about 105° relatively to the positive direction of vertical axis, the temperatures of the whole room reduce very fast and the temperature differences between contiguous layers are the least, meanwhile, human thermal feel is quite fine and the degree of indoor thermal comfort is high. In addition, the upper parts of the room is hotter while the lower is cooler, which shows the existence of a stratification phenomenon. When the velocities of air outflow of the air-conditioner are V= 4.0 and 3.0 m/s, the temperature difference between 1.7-0.1 m are 0.9-1.5 and 1.8-2.3°C, respectively. The effect of air outflow parameters on the wall mounted temperature is quite little, which could be ignored.

Details

  • Original title: Experimental study on the effect of air outflow parameters of a wall-mounted air conditioner on the indoor thermal environment.
  • Record ID : 2008-2603
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.
  • Publication date: 2008/04/05

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