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Predicting thermal comfort parameters in a dwelling with mechanical extract ventilation.

Author(s) : STEVANOVIC Z., MUMOVIC D., WINGFIELD J., et al.

Summary

It is becoming increasingly important to investigate to what extent natural ventilation could be used to maintain adequate thermal comfort in dwellings. Although computational fluid dynamics (CFD) has a proven track record in providing an effective means to support engineering decision-making in relation to mechanical ventilation, the application of CFD in the case of natural ventilation is still questionable due to the number of uncertainties, which have to be taken into account. Cham Ltd. has recently released FLAIR, a special purpose version of the general CFD code PHOENICS, aimed at the building service industry. This pilot study evaluates the performance of this software for use in thermal comfort modelling of naturally ventilated dwellings. The field measurements were carried out over a period of four weeks to validate CFD predictions of airflow, temperature and relative humidity. FLAIR is capable of predicting thermal comfort parameters in the dwelling studied. However, the reasonably high accuracy of the modelled results is offset by the excessive computational time needed for simulation.

Details

  • Original title: Predicting thermal comfort parameters in a dwelling with mechanical extract ventilation.
  • Record ID : 2007-0337
  • Languages: English
  • Source: Zbornik radova pisanih za 36. kongres o klimatizaciji, grejanju, hladenju + CD-ROM./ Proceedings of the 36th International HVAC&R congress + CD-ROM.
  • Publication date: 2005/11/02

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