The inclusion of ridge vents further reduced the internal temperature and relative humidity (RH) in the A-frame greenhouse during the daytime. The opening area of the ridge vent within the range between 9.3% and 14% (of the floor area) did not significantly change the ventilation based ...
The prior art provides many solutions to the problem. In one approach, vent passages are formed in the upper or lower layers to permit free air flow between each switch region and the exterior of the keyboard. This solution has a disadvantage in that additional manufacturing steps are required...
The pressure losses due to friction at the walls of the ventilated chamber were beyond the scope of this paper. Under most circumstances, the major contribution to pressure losses in VSWS occurs at the inlet and outlet vent openings. A list of the empirical/analytical equations recommended for ...