VENTILATION OPTIMIZATION STRATEGY AND EFFICIENCY OF RURAL DWELLINGS IN LUOYANG

The design strategy of wind environment in cold areas is windbreak in winter and ventilation in summer. However, through the analysis of the observation data of the weather station in Luoyang for many years, combined with the field test, it is found that the dominant wind direction in Luoyang is roughly the same in the four seasons, so the demands of winter and summer wind are restricted mutually. For a long time, due to economic and technical constraints, traditional rural residential dwellings have adopted the layout strategy of "emphasizing cold protection and neglecting ventilation" to meet the needs of survival and comfort. Based on the meteorological data of Luoyang and the actual indoor and outdoor test data, this paper analyzed the characteristics of wind pressure ventilation, combined with theoretical analysis, and put forward some strategies to improve summer ventilation under the premise of winter windbreak. Finally, by simulating the differential pressure difference in the incoming inflow direction under different working conditions, it was concluded that when the outdoor average wind speed was 3 m/s, the indoor average wind speed was up to 0.36 m/s higher than that before the change, which could offset the increase in room temperature at most 1.47 ℃.