These include a roof garden and roof windows which allow air circulation, to remove the need for air conditioning.
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This air circulation pattern "compartmentalizes" the air flow into sections, thereby limiting the spread of airborne particles throughout the passenger cabin.
Standing in the Grand Hammam excavation area, I could see the ruins of ancient chamber areas and air circulation passages that were slowly being restored.
Complementing the pressurization system is a 100% fresh air circulation capability.
The entire floor and ceiling of this building are parts of an air circulation system that works very hard and makes noise enough to prove it.
Air circulation patterns aboard standard commercial aircraft are side-to-side (laminar), with air entering the cabin from overhead, circulating across the aircraft and exiting the cabin near the floor.
For that reason, the Federal Aviation Administration issued an advisory in 2003 to airlines saying that passengers should be removed from planes within 30 minutes if there's no air circulation, but compliance isn't mandatory.
Unfortunately, because of the nature of air circulation, any downward-pointing force created aerodynamically generates a backward-pointing resistance in the process just as an increase in the lift of an aircraft wing as the flaps are lowered for take-off or landing creates more drag in the process, forcing the pilot to open the engine throttles to overcome the extra wind resistance.
Typical townhouses in Havana were fitted with grand colonnaded portales (porches) to provide shade and shelter from the tropical weather, and rejas, metal bars, were secured over open window panes to protect against burglaries and allow for a freer circulation of air.
It is not a consequence of higher air temperatures, but from changes in ocean circulation caused by atmospheric forcing.
She was kept off the air, her articles published in a small-circulation weekly.
Most commercial aircraft in service recirculate 50 percent of the air delivered to the passenger cabin for improved control of cabin circulation, humidity and fuel efficiency.
This was inevitable: airlines have been issuing so many miles (for spending on the ground as well as in the air) that the total stock is worth more than all the dollar notes and coins in circulation.
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