Study of indoor air quality air flow pattern in a room with floor heating


Investigates the air flow pattern, temperature field and indoor air quality in a room with floor heating. A numerical model was developed to predict air movement and heat transfer. The ventilation efficiency is adopted to indicate indoor air quality. The results indicated: 1) the air exchange rate is influenced greatly by the air supply volume and ventilation efficiency is dependent on the locations of inlet/outlet diffusers; 2) the floor heating produces approximately uniform indoor air temperature, numerical analysis qualitatively predicts the temperature gradient in this kind of room within -0.25degC and it is insensitive to the location of the ventilation system; 3) the ventilation system - where the inlet height is between 1.2 and 1.5m and the outlet is in the ceiling with floor heating combined with forced convective heat transfer high indoor air quality and thermal comfort is achieved.

Primary Author(s): Heng J, Li Y.

Source: Indoor Air 2002: Proceedings of the 9th International Conference on Indoor Air Quality and Climate, H Levin, ed., Santa Cruz, California, vol. 1, 278-283, 4 figs, 2 tabs, 6 refs.

             BSRIA Abstract Doc 000104408 Abs 20020939

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