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Temperature and velocity measurements on a diffuser for displacement ventilation with whole field methods.

Author(s) : LINDEN E., CEHLIN M., SANDBERG M.

Summary

The air temperatures were measured indirectly by the use of a low thermal mass screen in conjunction with infrared thermography. To determine air movements a whole field method called particle streak velocimetry was used. The diffuser was located in the centre of one of the walls. The tests were conducted for a supply flow of 15 l/s and a temperature difference between the inlet air and the room air of 4 and 6 °C. The results show that the two whole-field measurement methods can be good tools for visualising and measuring air velocities and temperatures in rooms. These techniques could be used in the work of improving the indoor climate.

Details

  • Original title: Temperature and velocity measurements on a diffuser for displacement ventilation with whole field methods.
  • Record ID : 2002-0339
  • Languages: English
  • Source: Air distribution in rooms: ventilation for health and sustainable environment. Roomvent 2000. Proceedings of the 7th international conference.
  • Publication date: 2000/07/09
  • Document available for consultation in the library of the IIR headquarters only.

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