摘要：Warm air supply is widely used to condition indoor environment in winter. It has been proved that stratum ventilation (SV), as a novel air distribution, has potentials to be applied for heating. The outlet location may affect indoor air quality (IAQ) due to interaction between thermal plumes from heat sources and room airflows. In this study, the effect of outlet location on IAQ for SV was investigated for 9 cases under heating mode. The outlets were located at the heights of 0.4 m on the same side wall as the inlet, 0.4, and 1.3 m on the opposite side wall, respectively. The concentration of carbon dioxide was measured in an experimental chamber with dimensions of 5850 mm(L) × 5057 mm(W) × 2554 mm(H). The average concentration of carbon dioxide and carbon dioxide removal efficiency (εCRE) were used as the evaluation indexes. The results showed that the concentration of carbon dioxide in the breathing zone with the outlet located on the same wall as the inlet was lower than those with the outlets located on the opposite side wall. At this scenario, εCRE was greater than one, showing a good ventilation performance.
