A Review on Wind - Driven Cross - Ventilation Techniques Inside Single Rooms

Cross-ventilation, techniques can be affected by the different wind conditions. In the weak wind velocity with the moderate temperature, small widths of the inlet openings in accordance with the large outlet openings or the total widths of the windward sides, the inlet and outlet openings are in the center of these sides, collect or wing walls can be used; rectangular shapes of the indoor spaces are suitable for weak wind velocity, and short paths of air flow or air movements between the inlet and outlet openings are suitable for moderate temperature. In the strong wind velocity with the hot temperature, large widths of the inlet openings in accordance with the small outlet openings or the total widths of windward sides are applied. The inlet and outlet openings are the opposite corner of these sides or the inlet openings face. The outlet openings walls, square shapes of indoor spaces are desirable. Screen walls of the inlet openings can be used in the high wind velocity and long paths of airflow or air movements between the inlet and outlet openings are suitable for this condition. The objective of the current study is to achieve thermal comfort by wind-driven cross-ventilation techniques inside single space in four wind conditions of velocities with temperature; strong wind velocity with moderate or hot temperature; and weak wind velocity with moderate or hot temperature. To achieve thermal comfort by acceptable indoor air velocity, the study focuses on dimensional and locational relationships in both the inlet to outlet openings and the openings to their sides of the indoor spaces beside the orientations of the inlet openings to wind direction and the additional external parts of the buildings at the inlet openings such as wing or collect walls or screen walls. The dimensions of the width and depth sides of the indoor spaces in accordance with wind direction are presented also in this study.